Indirect live wire cross arm extension arm, indirect live wire work safety distance assurance method using same, and indirect live wire power-failure-free power distribution method based on indirect live wire work safety distance assurance method

Abstract

The purpose of the present invention is to perform a power-failure-free power distribution project by means of indirect live-wire work, and more specifically, to a cross-arm extension arm for an indirect live wire, a method for securing a safe distance for indirect live-wire work using the same, and a method for power-failure-free power distribution of an indirect live wire based on the method for securing a safe distance for indirect live-wire work. The cross arm of the distribution line is prolonged through indirect live wire operation, the safe distance of indirect live wire operation is ensured, and the safe distance of indirect live wire operation is ensured through extension of the cross arm and movement of the electric wire for the distribution line with more than one upper loop and more than one lower loop. The safety entering and the safety operation distance are ensured; indirect live wire work such as post change, cross arm replacement, suspension insulator replacement, LP insulator replacement, sag adjustment, LA arrangement and removal, new arrangement of insertion posts, telegraph pole replacement, protection tool arrangement and removal, jumper replacement, electric wire replacement, line inspection and shutter arrangement and removal of more than one loop of distribution lines and distribution lines at the upper ends of the distribution lines can be realized.

Description

Indirect live wire crossarm extension arm and method for ensuring safe working distance for indirect live wire operations using it, and indirect live wire uninterrupted power distribution method based on the method for ensuring safe working distance for indirect live wire operations. Technical Field

[0001] This invention relates to power distribution lines in the live-wire state, ensuring a safe distance for indirect live-wire work, and using this safe distance assurance method as a basis for uninterrupted power distribution engineering for indirect live-wire work. More specifically, it relates to an extension arm for indirect live-wire work, a method for ensuring a safe distance for indirect live-wire work using the same, and an uninterrupted power distribution method for indirect live-wire work based on the method for ensuring a safe distance for indirect live-wire work, for a single circuit (1 For power distribution lines of 1000 or more, provided that sufficient indirect live-line working distance is ensured, indirect live-line working can be used to achieve the installation of poles for power distribution lines of one or more circuits and their upstream power distribution lines. Changes, crossarm replacements, suspension insulator replacements, LP insulator replacements, sag adjustment, LA (surge arrester) installation and removal, and insertion of posts ( New installation, replacement of utility poles, installation and removal of protective equipment, replacement of jumpers, replacement of electrical wires, and line inspection. It allows for simple and safe operations such as setting up and removing opening and closing devices. Background Technology

[0002] Recently, with the surge in electricity demand and the corresponding continuous expansion of power equipment, electricity users have gradually raised their requirements for power quality. Even momentary power outages can become the subject of public complaints. In view of the increasing number of collective actions and lawsuits by electricity users based on compensation claims, in order to ensure a high-quality power supply, a non-power outage method is being implemented in power distribution projects to carry out construction without interrupting the power supply.

[0003] On the one hand, existing power distribution projects without power outages consist of mobile transformer trucks, bypass cables, and construction switchgear. However, the bypass jumper cable method integrates cable trucks, cables required for the work area, construction switchgear, mobile transformer trucks, live-line bucket trucks, and live-line work tools. By setting up bypass cables through direct live-line work, the power supply is switched to bypass power supply. Then, the replacement of power distribution lines and line arms, as well as relocation work, are carried out. Finally, the bypass cables need to be removed through direct live-line work before the power distribution project is considered complete.

[0004] In addition, for power distribution lines with a capacity exceeding 5000KW, when using the existing bypass jumper cable method, the allowable capacity of the cables used in the existing cable method is below 5000KW. In order to reduce the capacity of the power distribution line to below 5000KW, it is necessary to switch the power load to other power distribution lines, which wastes a lot of time and labor costs and also poses serious problems in the effective operation of the power distribution line system.

[0005] Therefore, in order to solve the above problems, indirect fire-line work, which uses insulating tools such as fire-line work poles for indirect work, is currently being used.

[0006] However, as mentioned above, conventional indirect live-line work is very useful for work on a single circuit of a power distribution line. But when working on power distribution lines with more than one circuit above it, it is impossible to ensure a safe distance for indirect live-line work. There is currently no suitable work method.

[0007] Therefore, currently only power outage work can be carried out, or power outage-free work can be carried out by using bypass cables, which have construction costs as high as 3 to 10 times and the method of using construction switch failures is prone to accidents.

[0008] [Patent Document] (Patent Document 1) Korean Patent Publication No. 10-2010-0036065.

[0009] (Patent Document 2) Korean Patent No. 10-2161405.

[0010] (Patent Document 3) Korean Patent No. 10-2232560. Summary of the Invention

[0011] The technical problem to be solved: This invention was created to solve the various problems described above. The purpose of this invention is to provide an extension arm for indirect live wire work and a method for ensuring safe distance for indirect live wire work using the same, as well as a method for power distribution without power outages for indirect live wire work based on the method for ensuring safe distance for indirect live wire work. This method is used to extend the crossarm of the power distribution line through indirect live wire work, thereby ensuring safe distance for indirect live wire work.

[0012] Furthermore, the purpose of this invention is to provide an indirect live-line crossarm extension arm and a method for ensuring safe distances for indirect live-line operations using the same, as well as an indirect live-line power distribution method without power outages based on the indirect live-line operation safety distance assurance method. This method is used to ensure safe distances for indirect live-line operations on power distribution lines with one or more circuits above and below by extending the crossarm and moving the wires. When workers are performing indirect live-line operations on power distribution lines, they can perform indirect live-line operations such as pole changes, crossarm replacements, suspension insulator replacements, LP insulator replacements, sag adjustments, LA installation and removal, new insertion posts, pole replacements, protective gear installation and removal, jumper replacements, wire replacements, line inspections, and switch installation and removal on power distribution lines with one or more circuits above and below.

[0013] The technical solution, as a specific solution for achieving the aforementioned objective, includes: a pipe-shaped joint that opens forward for attachment to the end of a crossarm of a utility pole; an extension portion extending from the rear end of the joint portion and having multiple mounting holes; and a mounting component formed in the joint portion, applying a fixing force to secure the joint portion to the crossarm. The mounting component includes: a support plate formed of a plate with a front-to-back length, spacers formed in the middle portion facing outwards, a guide pin formed at the center of the rear end, a spring support pin formed in the middle portion, and a horizontal elongated rod guide hole formed on the rear side of the spring support pin; and an operating plate accommodated between the spacers and capable of sliding back and forth, with a locking mechanism protruding from the front end. The protrusion has a horizontal elongated hole-shaped spring guide groove through the middle of its front side, through which the spring support pin passes. The spring is spring-loaded onto the spring support pin and has a forward moving force. The rear end has a guide pin guide groove to accommodate and guide the guide pin. Fasteners are formed in pairs on both sides in the width direction, each rear-axisly connected to the front of the support, rotating and spring-loaded by an open spring, having an opening elastic force at the front. The front of each pair has a pin fixing groove, and the rear of each pair has a rear-expanding stepped locking groove that forms a locking protrusion for locking the operating plate. An operating lever has a lever guide hole through the support plate and is connected to the operating plate. It is used for indirect wire work via a wire-operated lever. Applying rearward movement force to the control panel, and using the indirect live-line work crossarm extension arm for indirect live-line work on UHV distribution lines with one or more circuits above and below, includes: work preparation process, carrying live-line work equipment such as the indirect live-line work crossarm extension arm for crossarm extension including a live-line work pole, and moving to the distribution line using a live-line bucket; crossarm extension process, using the live-line work pole and live-line work equipment, through indirect live-line work, connecting the indirect live-line work crossarm extension arm to one or both sides of the distribution line crossarm to extend the crossarm; work safety distance assurance process, transferring the distribution line wires to the indirect live-line work crossarm extension arm to ensure the indirect live-line work safety distance; wire repositioning process. The process involves transferring the power lines of the distribution line to the indirect live-line crossarm extension arm and resetting them; and the finishing process, using live-line work poles and live-line work equipment to dismantle the indirect live-line crossarm extension arm and other live-line work equipment. Additionally, the process involves using the indirect live-line crossarm extension arm to perform indirect live-line work on UHV distribution lines with one or more circuits above and below. This includes: a work preparation process, carrying live-line work equipment such as the indirect live-line crossarm extension arm for crossarm extension (including a live-line work pole), and moving it to the distribution line using a live-line bucket; and a crossarm extension process, using the live-line work pole and live-line work equipment to connect the indirect live-line crossarm extension arm to one or both sides of the crossarm of the distribution line through indirect live-line work, thus extending the crossarm.The process for ensuring safe working distance involves transferring the power line wires to the indirect live-line extension arm to ensure a safe working distance for indirect live-line work. The main work process involves, after ensuring the safe working distance, the operator uses a live-line bucket to perform the indirect live-line work. The wire repositioning process involves, after completing the indirect live-line work, transferring the power line wires transferred to the indirect live-line extension arm back to the crossarm and repositioning them. The final step involves using a live-line work pole and equipment to dismantle the indirect live-line extension arm and other live-line work equipment.

[0014] As described above, the present invention provides an indirect live wire extension arm for crossarms and a method for ensuring safe indirect live wire work distance using the same, as well as an indirect live wire power distribution method without power outages based on the indirect live wire work safety distance assurance method. By extending the crossarm, the safe distance for indirect live wire work is ensured, thereby enabling safe indirect live wire work on power distribution lines.

[0015] In addition, for power distribution lines with more than one circuit above and below, by extending the crossarm and moving the wire, it is possible to enter power distribution lines with more than one circuit and the power distribution lines above them while ensuring the safe distance for indirect live-line work, and to carry out safe indirect live-line work such as changing the tension post, replacing the crossarm, replacing the suspension insulator, replacing the LP insulator, adjusting the sag, setting and removing the LA, installing new insertion posts, replacing the power pole, setting and removing protective equipment, replacing jumpers, replacing wires, inspecting the line, setting and removing the switch. Attached Figure Description

[0016] Figure 1 is a perspective view of the first embodiment of the crossarm extension arm for indirect fire wire of the present invention.

[0017] Figure 2 is a cross-sectional view of the first embodiment of the crossarm extension arm for indirect fire wire of the present invention.

[0018] Figure 3 is a perspective view of a second embodiment of the crossarm extension arm for indirect fire wires of the present invention.

[0019] Figure 4 is a cross-sectional view of a second embodiment of the crossarm extension arm for indirect fire wires of the present invention.

[0020] Figure 5 is a perspective view of the third embodiment of the crossarm extension arm for indirect fire wire of the present invention.

[0021] Figure 6 is a cross-sectional view of the third embodiment of the crossarm extension arm for indirect fire wire of the present invention.

[0022] Figure 7 is a perspective view of the mounting components of the crossarm extension arm for indirect live wires of the present invention.

[0023] Figure 8 is an exploded perspective view of the mounting components of the indirect live wire extension arm of the present invention.

[0024] Figure 9 is a cross-sectional view of the components of the indirect fire wire extension arm of the present invention.

[0025] Figure 10 is a diagram showing the operating state of the installation components of the crossarm extension arm for indirect live wires according to the present invention.

[0026] Figure 11 is a diagram showing the usage state of a first embodiment of the crossarm extension arm for indirect fire lines according to the present invention.

[0027] Figure 12 is a diagram showing the usage state of a second embodiment of the crossarm extension arm for indirect fire lines according to the present invention.

[0028] Figure 13 is a diagram showing the usage state of the third embodiment of the crossarm extension arm for indirect fire according to the present invention.

[0029] Figure 14 is a flowchart of the overall process sequence of the method for ensuring safe distance in indirect fire operation using the indirect fire line extension arm of the present invention.

[0030] Figures 15 to 20 are schematic diagrams illustrating the overall process of the method for ensuring safe distance during indirect live-line work using the crossarm extension arm of the present invention, or the method for ensuring safe distance during indirect live-line work based on the method for ensuring safe distance during indirect live-line work using the crossarm extension arm of the present invention, and the method for uninterrupted power distribution during indirect live-line work.

[0031] Figure 21 is a diagram showing the overall process sequence of an indirect live-line power distribution method without power outages, based on the method for ensuring safe distances during indirect live-line operations using the crossarm extension arm of the present invention.

[0032] Figures 22 to 24 are examples of the pole-changing operation of the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0033] Figures 25 to 27 are examples of the replacement of the pin tension column crossarm of the upper distribution line in the main operation process of the indirect live line power distribution method without power outage, based on the indirect live line operation safety distance assurance method using the crossarm extension arm of the indirect live line of the present invention.

[0034] Figures 28 to 31 are examples of the suspension insulator replacement operation of the upper distribution line in the main operation process of the indirect live line power distribution method without power outage, based on the indirect live line operation safety distance assurance method using the indirect live line crossarm extension arm of the present invention.

[0035] Figures 32 to 34 are examples of LP insulator replacement operations on the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0036] Figures 35 to 38 are examples of the sag adjustment operation of the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0037] Figures 39 and 40 are examples of the LA setting operation of the upper distribution line in the main operation process of the indirect live line power distribution method without power outage, based on the indirect live line operation safety distance assurance method using the indirect live line crossarm extension arm of the present invention.

[0038] Figures 41 and 42 are examples of the LA removal operation of the upper distribution line in the main operation process of the indirect live line power distribution method without power outage, based on the indirect live line operation safety distance assurance method using the indirect live line crossarm extension arm of the present invention.

[0039] Figures 43 to 45 are examples of new installation operations for insertion posts of power distribution lines with one or more circuits in the main operation process of the indirect live-line non-power-outage distribution method based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0040] Figures 46 to 49 are examples of pole replacement operations for power distribution lines with one or more circuits in the main operation process of the indirect live-line non-power-outage distribution method based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0041] Figures 50 to 52 are examples of the installation of protective equipment on the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0042] Figures 53 and 54 are examples of the removal of protective equipment on the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0043] Figures 55 to 57 are examples of jumper replacement operations of the upper distribution line in the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0044] Figures 58 and 59 are examples of wire replacement operations on the upper distribution line in the main operation process of the indirect live-line power distribution method without power outages, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0045] Figure 60 is an example of a line inspection operation in the main operation process of an indirect live-line power distribution method without power outages, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0046] Figures 61 to 63 are examples of the switch installation operation of the upper distribution line in the main operation process of the indirect live line power distribution method without power outage, based on the indirect live line operation safety distance assurance method using the indirect live line crossarm extension arm of the present invention.

[0047] Figures 64 to 66 are examples of the removal of the switchgear in the upper distribution line during the main operation process of the indirect live-line power distribution method without power outage, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0048] Figure 67 is a schematic diagram showing the tension column configuration in an indirect live-line power distribution method without power outages, based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention.

[0049] Figure Label Explanation 10: Utility Pole 10': New Utility Pole 11: Inserted Post 20: Crossarm 21: Crossarm 21': New Crossarm 21a: Crossarm for Tension Post 21b: Crossarm for Tension Post 22c: Single Type Tension Crossarm 25: Fixing Pin 26: Bow Shackle ( 26a: Cotter pin; 27: M bolt; 30: Wire; 31: Wire; 31a: Tension clamp; 32: Overhead ground wire; 40: Insulating auxiliary arm for indirect live wire; 51: Suspension insulator; 51': New suspension insulator; 52: LP insulator; 52': New LP insulator; 53: LA; 53a: Grounding wire; 53b: Primary side lead wire; 53c: Pole grounding wire; 55: Protective device; 55a: Protective device inserter; 56: Jumper wire; 56a: Bypass jumper cable; 56': New jumper wire; 58: Switch; 58 a: Switch cable 60: Tensioner 70: Wire bucket 80: Wire working pole 100: Joint 110: Pin tensioning post joint 111: Crossarm insertion space 112: Crossarm guide groove 113: Fixing pin guide groove 114: Pin locking part 115: Working hole 116: Mounting component housing 117: Fixing pin guide groove 118: Pole through hole 120: Tensioning post joint 121: Crossarm insertion space 122: Pin guide groove 123: Bolt guide groove 125: Mounting part Component housing 126: Bolt guide groove; 127: Rod through-hole; 128: Inclined reinforcement; 130: Joint for single tension column; 131: Pin guide groove; 132: Rod through-hole; 200: Extension; 210: Mounting hole; 300: Mounting component; 310: Support plate; 311: Spacer; 312: Guide pin; 313: Spring support pin; 314: Rod guide hole; 320: Operating plate; 321: Locking protrusion; 322: Spring guide groove; 323: Spring; 324: Guide pin guide groove; 330, 3 30': Fastener; 331: Shaft; 332: Open Spring; 333: Pin Retaining Slot; 334: Locking Slot; 340: Operating Lever; S110: Work Preparation Process; S120: Crossarm Extension Process; S130: Work Safety Distance Assurance Process; S140: Wire Reset Process; S150: Finishing Process; S210: Work Preparation Process; S220: Crossarm Extension Process; S230: Work Safety Distance Assurance Process; S240: Main Work Process; S250: Wire Reset Process; S260: Finishing Process Detailed Description of Embodiments The terms or words used in this specification and claims should not be interpreted in their conventional or dictionary sense, but rather should be interpreted in accordance with the principle that the inventors, in order to best explain their invention, can appropriately define the concepts of the terms to convey the technical ideas of the invention.

[0050] Therefore, the embodiments described in this specification and the configurations illustrated in the accompanying drawings are only one preferred embodiment of the present invention and do not fully represent the technical concept of the present invention. It should be understood that when this application is filed, there may be various equivalents and modifications that can replace them.

[0051] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0052] Figure 1 is a perspective view of a first embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 2 is a cross-sectional view of a first embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 3 is a perspective view of a second embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 4 is a cross-sectional view of a second embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 5 is a perspective view of a third embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 6 is a cross-sectional view of a third embodiment of the crossarm extension arm for indirect live wires of the present invention; Figure 7 is a perspective view of the mounting components of the crossarm extension arm for indirect live wires of the present invention; Figure 8 is an exploded perspective view of the mounting components of the crossarm extension arm for indirect live wires of the present invention; and Figure 9 is a cross-sectional view of the components of the crossarm extension arm for indirect live wires of the present invention.

[0053] As shown in Figures 1 to 9, the indirect live wire crossarm extension arm 1 of the present invention includes a connecting part 100, an extension part 200, and a mounting component 300.

[0054] First, in the configuration of the indirect live wire crossarm extension arm 1 of the present invention, the connecting part 100 is configured to be connected to the end of the crossarm of the utility pole.

[0055] Therefore, the joint 100 is configured as a tube opening forward, preferably a square tube, so that it can be joined to the crossarm.

[0056] In the configuration of the indirect fire wire crossarm extension arm 1 of the present invention, the extension portion 200 may be configured to extend the rear end of the connecting portion 100, and preferably, it is configured to be extendable by means of the connecting portion.

[0057] At this time, the extension 200, like a normal crossarm, is formed into a square tube shape, with multiple mounting holes 210 through the middle section, which can be used to install bow-shaped shackles for setting LP insulators or suspension insulators.

[0058] In the configuration of the indirect live wire crossarm extension arm 1 of the present invention, the mounting member 300 is configured to be formed in the joint portion 100, and a fastening force is applied when the joint portion 100 is joined to the crossarm, thereby achieving stable installation and fixation.

[0059] Therefore, firstly, the mounting component 300 is configured with a support plate 310, which is formed by a plate with a front-to-back length. In this invention, the support plate 310 can be configured as a single or symmetrically spaced pair according to the first to third embodiments of the joint 100 described later.

[0060] At this time, spacers 311 protrude from the surface of the support plate 310 in all directions, and guide pins 312 protrude from the center of the rear end of the support plate 310. Spring support pins 313 protrude from the middle part, and rod guide holes 314 in the form of horizontal elongated holes in the front-back direction are formed through the rear side of the spring support pins 313. When the support plates 310 are configured in pairs, they can be connected at intervals by the spacers 311, guide pins 312 and spring support pins 313.

[0061] In addition, the mounting component 300 is guided by the support plate 310 and has an operation plate 320. The operation plate 320 is accommodated between the spacers 311 and can slide back and forth.

[0062] At this time, the front end of the operation plate 320 protrudes with a locking protrusion 321, which is used to restrict the unfolding of the fasteners 330 and 330' described later.

[0063] In addition, a horizontal elongated hole-shaped spring guide groove 322 is formed through the middle of the front side of the operation plate 320, and the spring support pin 313 is passed through the rear of it. At the spring guide groove 322, the spring 323 is spring-loaded between the spring guide groove 322 and the spring support pin 313, so that the operation plate 320 has a forward movement force.

[0064] In addition, the rear end of the control panel 320 is provided with a guide pin groove 324 in a rearward-opening form to accommodate and guide the guide pin 312, thereby realizing the stable sliding operation of the control panel 320.

[0065] In addition, the mounting component 300 is provided with a pair of fasteners 330, 330' on both sides along the width direction, which can be unfolded or folded by the sliding restriction of the operating plate 320 to apply a fastening force to the crossarm.

[0066] At this time, each fastener 330, 330' is configured to have its rear shaft 331 connected to the front side of the support plate 310, and rotate in opposite directions along the width direction. Each fastener is also provided with an open spring 332, so that its front end has an unfolding elastic force.

[0067] In addition, each of the fasteners 330 and 330' has a pin fixing groove 333 in the shape of a semi-circular groove formed at the front and a locking groove 334 in the shape of a locking protrusion 321 that locks the operating plate 320 formed at the rear.

[0068] In this invention, the locking groove 334 is preferably configured to have a stepped difference, forming a stepped difference that is narrow at the front and wide at the rear. When the locking protrusion 321 of the operating plate 320 is located in front of the locking groove 334, the release spring 332 is compressed, causing the fasteners 330 and 330' to fold in front and the pin fixing groove 333 to close. When located behind the locking groove 334, the release spring 332 forces the fasteners 330 and 330' to unfold in front and the pin fixing groove 333 to open.

[0069] Additionally, the mounting component 300 forms an operating lever 340 that restricts the sliding movement of the operating plate 320.

[0070] At this time, the operating lever 340 is configured to pass through the rod guide hole 314 of the support plate 310 and is coupled to the operating plate 320.

[0071] In addition, in the mounting component 300, an operating plate 320 is configured with the support plate 310 as a guide. The operating plate 320 is accommodated between the spacers 311 and can be slid back and forth. An operating lever 340 is protruding and can be operated from the outside using a normal wire work lever.

[0072] That is, referring to Figure 10, when the operating lever 340 is retracted backward by the mounting component 300, the operating plate 320 moves together. At this time, the locking protrusion 321 of the operating plate 320 moves backward towards the locking groove 334. At the same time, the fasteners 330 and 330' are elastically released by the release spring 332, rotate around the shaft 331 and unfold in front, so that the pin fixing groove 333 is opened. At this time, if the retraction force of the operating lever 340 is released, it will be locked on the step of the locking groove 334 formed by the step difference.

[0073] Then, in the open pin fixing groove 333, the fixing pins of the crossarm fixing bolts or insulators, the bow-shaped shackle fixing pins (cotter pins) and the like, which are usually set in the crossarm fixing bolts or insulators, are accommodated in the pin fixing groove 333. When the pin fixing groove 333 is pressed, the fasteners 330 and 330' open to a set size. At the same time, the operating plate 320 moves forward due to the return elasticity of the spring 323, and the locking protrusion 321 is inserted into the inside of the locking groove 334. At this time, the pin fixing groove 333 is closed, thereby locking, tightening and fixing the fixing pins of the crossarm fixing bolts or insulators, the bow-shaped shackle fixing pins (cotter pins) and the like.

[0074] On the one hand, the crossarm extension arm 1 for indirect live wires of the present invention, through various embodiments of the joint 100, can be configured to realize the pin tension post of the power distribution line ( ) or tension column ( It can be used for various extended applications, such as single-type tension crossbeams.

[0075] First, according to the first embodiment, the joint 100 may include a joint 110 for a crossarm of a pin tension post that can be applied to a power distribution line.

[0076] Therefore, referring to Figures 1 and 2, firstly, the needle tension column joint 110 forms a crossbeam insertion space 111, which is hollow inside and open to the front, so that the needle tension column crossbeam can be inserted.

[0077] In addition, the upper surface is provided with a crossarm guide groove 112, which is open to the front so that the crossarm can enter the crossarm insertion space 111.

[0078] In addition, a pair of fixing pin guide grooves 113 with slots are formed on both sides, with the middle part opening forward to accommodate fixing pins (not shown in the figure) attached to the crossbeam of the needle tension column.

[0079] Furthermore, with the fixed pin guide groove 113 as the center, the upper part of both sides has a pin locking part 114 that protrudes forward and is inclined downward, so that when the pin tension column connecting part 110 is installed, it can be locked to the fixed pin provided as described above.

[0080] In addition, the bottom surface has a through-hole 115 that allows tools and other equipment to enter, thereby communicating with the crossbeam insertion space 111.

[0081] In addition, a mounting component housing 116 for constituting the mounting component 300 is also formed on one side. At this time, the mounting component housing 116 is open to the front, and a fixing pin guide groove 117 corresponding to the fixing pin guide groove 113 is formed at the front end. A rod through hole 118 is formed in the middle part to correspond to the rod guide hole 314 of the support plate 310.

[0082] Thus, in the mounting component 300, the support plate 310 is fixedly mounted on the inner side of the mounting component housing 116, so that the fasteners 330 and 330' are located in front, one end of the opening spring 332 is spring-loaded behind the fasteners 330 and 330', and the other end is supported on the side of the mounting component housing 116, so that the fasteners 330 and 330' have the elasticity to open.

[0083] In addition, the operating lever 340 is fixedly installed on the operating plate 320, thereby passing through the lever through hole 118 and the lever guide hole 314.

[0084] Therefore, when the joint 100 is configured as a needle tension post joint 110 as described above, referring to FIG11, a separate fixing pin 25 for horizontally extending the crossarm extension arm 1 for the indirect fire wire of the present invention to the crossarm 21a for the needle tension post can be provided.

[0085] Furthermore, by connecting the needle tension column joint 110 to the needle tension column crossarm 21a, and by locking and supporting the upper part of the pin 25 by the pin locking part 114, the needle tension column crossarm 21a can be horizontally connected and accommodated in the crossarm guide groove 112 formed on the upper part.

[0086] Thus, the fixing pin 25 is inserted into and locked in the fixing pin guide groove 113, and the end of the needle tension column crossarm 21a is inserted into the crossarm insertion space 111. At this time, the crossarm guide groove 112 with the upper slot prevents interference with the LP insulator 52. Through such a needle tension column connecting part 110, the crossarm extension arm 1 for the indirect live wire of the present invention can be connected to the needle tension column crossarm 21a. When connected in this way, the extension part 200 protrudes horizontally, which can realize the length extension of the needle tension column crossarm 21a.

[0087] On the other hand, as described above, when the needle tension column is connected with the connecting part 110, the fastening and fixing of the mounting part 300 is as described above. The operating lever 340 that can be operated using the fire-working lever can be fastened and fixed to the fasteners 330 and 330' by unfolding or folding the fasteners 330 and 330'.

[0088] In addition, according to the second embodiment, the joint 100 may include a tension post joint 120 that can be applied to the crossarm of a tension post in a power distribution line.

[0089] Therefore, referring to Figures 3 and 4, firstly, the tension column joint 120 is configured with a hollow, forward-opening crossbeam insertion space 121, so that a tension column crossbeam can be inserted.

[0090] In addition, the upper and lower surfaces form a pair of pin guide grooves 122, which are open to the front to guide the cotter pins of the bow-shaped shackles (not shown in the figure) used to install the suspension insulator on the crossarm of the tension post.

[0091] In addition, a pair of bolt guide grooves 123 with slots are formed on both sides, with the middle part opening forward to accommodate bolts (not shown in the figure) used to connect the tension column to each other with crossbeams.

[0092] In addition, a mounting component housing 125 for constituting the mounting component 300 is also formed on one side. At this time, the mounting component housing 125 is open to the front, and a bolt guiding groove 126 corresponding to the bolt guiding groove 123 is formed at the front end. A rod through hole 127 is formed in the middle part to correspond to the rod guiding hole 314 of the support plate 310.

[0093] In addition, the other side protrudes with an inclined reinforcement 128, which allows for insertion through the inside of the normally curved bow-shaped shackle.

[0094] Thus, in the mounting component 300, the support plate 310 is fixedly mounted on the inner side of the mounting component housing 125, so that the fasteners 330 and 330' are located in front, one end of the opening spring 332 is spring-loaded behind the fasteners 330 and 330', and the other end is supported on the side of the mounting component housing 125, so that the fasteners 330 and 330' have the elasticity to open.

[0095] In addition, the operating lever 340 is fixedly installed on the operating plate 320, thereby passing through the lever through hole 127 and the lever guide hole 314.

[0096] Therefore, when the joint 100 is configured as a tension column joint 120 as described above, referring to FIG12, the tension column joint 120 is connected to the tension column crossarm 21b, and the end of the tension column crossarm 21b is horizontally inserted into the crossarm insertion space 121 of the tension column joint 120.

[0097] At this time, the tension column uses the joint 120 to accommodate the cotter pin 26a of the bow shackle 26 at the pin guide groove 122 formed on its upper and lower parts. The inclined reinforcement 128 formed on the other side is inserted into the inner side of the bow shackle 26 and supports it. The M bolt 27 of the tension column crossbeam 21b connecting the two sides is accommodated in the bolt guide groove 123 and the bolt guide groove 126, so that it can be set without interference with the bow shackle 26 and the M bolt 27.

[0098] Thus, through the tension column connecting part 120, the extension arm 1 of the indirect fire line crossarm of the present invention can be connected to the tension column crossarm 21b. When connected in this way, the extension part 200 protrudes horizontally, which can extend the length of the tension column crossarm 21b.

[0099] On the one hand, as described above, when the tension column is connected with the joint 120, the fastening and fixing of the mounting component 300 is as described above. The operating rod 340, which can be operated using the fire-working rod, is used to lock and fix the cotter pin 26a to the fasteners 330 and 330' by unfolding or folding the fasteners 330 and 330'.

[0100] Additionally, according to the third embodiment, the joint 100 may include a joint 130 for a single tension column that can be applied to a single type of tension crossarm in a power distribution line.

[0101] Therefore, referring to Figures 5 and 6, firstly, the joint 130 of the single tension column is configured with a smaller diameter than that of the single type tension crossarm, so that it can be inserted into the single type tension crossarm.

[0102] In addition, a pair of pin guide grooves 131 are formed in the center of the upper and lower surfaces, which are open to the front to guide the cotter pins of the bow-shaped shackles (not shown in the figure) used to set the suspension insulator on the single-type tension crossarm.

[0103] Furthermore, a rod through-hole 132 corresponding to the rod guide hole 314 is formed in the upper part facing the rear of the pin guide groove 131.

[0104] Thus, in the mounting component 300, the support plate 310 is fixedly installed on the upper inner side of the single tension column joint 130, so that the fasteners 330 and 330' are in front, one end of the open spring 332 is spring-loaded behind the fasteners 330 and 330', and the other end is supported on the side of the single tension column joint 130, so that the fasteners 330 and 330' have the elasticity to open.

[0105] In addition, the operating lever 340 is fixedly installed on the operating plate 320, thereby passing through the lever through hole 132 and the lever guide hole 314.

[0106] Therefore, when the joint 100 is configured as a single tension column joint 130 as described above, referring to FIG13, the single tension column joint 130 is connected to the single type tension crossarm 21c, and the single tension column joint 130 is horizontally inserted to the end of the single type tension crossarm 21c.

[0107] At this time, the single tension column uses the joint 130 to accommodate the cotter pin 26a that guides the bow-shaped shackle 26 at the pin guide groove 131 formed at its upper and lower parts.

[0108] Thus, through the single tension column connecting part 130, the indirect fire line crossarm extension arm 1 of the present invention can be connected to the single type tension crossarm 21c. When connected in this way, the extension part 200 protrudes horizontally, which can realize the length extension of the single type tension crossarm 21c.

[0109] On the other hand, as described above, when the single tension column is connected with the joint 130, the fastening and fixing of the mounting component 300 is as described above. The operating rod 340, which can be operated using the fire-working rod, is used to lock and fix the cotter pin 26a to the fasteners 330 and 330' by unfolding or folding the fasteners 330 and 330'.

[0110] In this invention, when using a single tension column joint 130 for extension, it is preferable to perform the extension operation with the operating rod 340 in the downward position, thereby facilitating the operation of the rod for fire-line work.

[0111] The following describes a method for ensuring safe working distance in indirect fire operations using the indirect fire line extension arm of the present invention having the above-described configuration.

[0112] The method for ensuring safe distance for indirect live-line work using the indirect live-line crossarm extension arm of the present invention is used to perform indirect live-line work on UHV power distribution lines with one or more circuits above and below.

[0113] Figure 14 is a diagram showing the overall process sequence of the method for ensuring safe distances in indirect fire operations using the indirect fire line extension arm of the present invention.

[0114] *As shown in Figure 14, the method for ensuring safe distance for indirect live-line work using the indirect live-line crossarm extension arm of the present invention is used to perform indirect live-line work on UHV power distribution lines with one or more circuits above and below. The method involves the following steps: work preparation process S110, crossarm extension process S120, work safety distance assurance process S130, wire reset process S140, and finishing process S150. This method can ensure the safe distance for indirect live-line work on UHV power distribution lines with one or more circuits above and below.

[0115] First, in the work preparation process S110, when using the indirect live wire work safety distance assurance method of the indirect live wire work crossarm extension arm of the present invention, the work-related live wire work equipment is carried and moved to the power distribution line.

[0116] Referring to FIG15, in this invention, while carrying fire-working equipment such as a fire-working crossarm extension arm 1 required for fire-working extension including a conventional fire-working pole 80, the fire-working bucket 70 can be used to move to the power distribution line to be worked.

[0117] Then, in the crossarm extension process S120, when using the indirect live wire operation safety distance assurance method of the present invention using the crossarm extension arm for indirect live wire, the crossarm 20 of the power distribution line formed on the utility pole 10 is extended.

[0118] Referring to Figure 16, by using a live wire work pole 80 and live wire work equipment, the live wire work pole extension arm 1 is connected to one side of the crossarm 20 of the power distribution line through indirect live wire work, thereby extending one side of the crossarm 20.

[0119] On the one hand, referring to Figures 11 to 13, the crossarm 20 of the power distribution line used in this invention can obviously be a needle-type tension post, a tension post, or a single-type tension post, depending on the type of its tension post.

[0120] Then, in the working safety distance assurance process S130, when using the indirect live wire working safety distance assurance method of the indirect live wire crossarm extension arm of the present invention, the wire 30 of the power distribution line is transferred to ensure the indirect live wire working safety distance at the power distribution line.

[0121] Referring to Figure 17, by using a live wire work pole 80 or similar device, the wire 30 fixed to the crossarm 20 can be separated and transferred to the live wire crossarm extension arm 1 through indirect live wire work.

[0122] Therefore, as described above, a safe distance for indirect live wire work is ensured at the location of the existing wire 30 where it is being moved.

[0123] Then, in the wire reset process S140, when using the indirect live wire operation safety distance assurance method of the indirect live wire crossarm extension arm of the present invention, the wire 30 of the distribution line transferred to the indirect live wire crossarm extension arm 1 is reset to the crossarm 20.

[0124] Referring to Figure 19, by using a wire work pole 80 and wire work equipment, the wire 30 fixed to the wire work crossarm extension arm 1 can be separated and transferred to the crossarm 20 through indirect wire work.

[0125] Then, in the finishing process S150, when performing the method for ensuring safe distance for indirect fire work using the indirect fire work crossarm extension arm of the present invention, referring to FIG20, as described above, with the wire 30 in the reset state, the fire work pole 80 and the fire work equipment, such as the fire work crossarm extension arm 1, can be removed.

[0126] Therefore, in the method for ensuring safe distance for indirect live-line work using the crossarm extension arm of the present invention, the safe distance for indirect live-line work at the distribution line can be ensured.

[0127] On the other hand, in the method for ensuring safe distance for indirect live-line work using the crossarm extension arm of the present invention, by performing the work safety distance assurance process S130, at the position of the wire 30 of the transferred power distribution line, an indirect live-line work safety distance for performing normal indirect live-line non-power-outage power distribution work is ensured. Referring to FIG18, through this indirect live-line work safety distance, power distribution line work can be performed. For example, various operations such as pole replacement, crossarm replacement, suspension insulator replacement, LP insulator replacement, sag adjustment, LA installation and removal, insertion post installation, pole replacement, protective equipment installation and removal, jumper replacement, wire replacement, line inspection, and switch installation and removal can be achieved through indirect live-line work.

[0128] Furthermore, the indirect live wire uninterrupted power distribution method based on the indirect live wire operation safety distance assurance method using the indirect live wire crossarm extension arm of the present invention with the above configuration is described in detail below. Figure 21 is a diagram showing the overall process sequence of the indirect live wire uninterrupted power distribution method based on the indirect live wire operation safety distance assurance method using the indirect live wire crossarm extension arm of the present invention.

[0129] As shown in Figure 21, the indirect live-line non-power-outage power distribution method based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention performs indirect live-line operations on UHV power distribution lines with one or more circuits above and below using the indirect live-line crossarm extension arm. The process includes operation preparation process S210, crossarm extension process S220, operation safety distance assurance process S230, main operation process S240, wire reset process S250, and finishing process S260.

[0130] First, in the work preparation process S210, when carrying out the indirect live-line work safety distance assurance method based on the indirect live-line work safety distance assurance method using the indirect live-line work crossarm extension arm of the present invention, the work preparation process involves carrying the live-line work equipment required for the work and moving to the power distribution line.

[0131] Referring to FIG15, in this invention, while carrying fire-working equipment such as a fire-working crossarm extension arm 1 required for fire-working extension including a conventional fire-working pole 80, the fire-working bucket 70 can be used to move to the power distribution line to be worked.

[0132] Then, in the crossarm extension process S220, when performing the indirect live wire power distribution method without power outage based on the indirect live wire operation safety distance assurance method using the crossarm extension arm for indirect live wire of the present invention, the crossarm 20 of the power distribution line formed on the utility pole 10 is extended.

[0133] Referring to Figure 16, by using a live wire work pole 80 and live wire work equipment, the live wire work pole extension arm 1 is connected to one side of the crossarm 20 of the power distribution line through indirect live wire work, thereby extending one side of the crossarm 20.

[0134] On the one hand, referring to Figures 11 to 13, the crossarm 20 of the power distribution line used in this invention can obviously be a needle-type tension post, a tension post, or a single-type tension post, depending on the type of its tension post.

[0135] Then, in the process S230 of ensuring safe working distance, when performing the indirect live wire power distribution method without power outage based on the method of ensuring safe working distance for indirect live wire using the crossarm extension arm of the present invention, the wire 30 of the distribution line is transferred to ensure the safe working distance for indirect live wire at the distribution line.

[0136] Referring to Figure 17, by using a live wire work pole 80 or similar device, the wire 30 fixed to the crossarm 20 can be separated and transferred to the live wire crossarm extension arm through indirect live wire work.

[0137] Therefore, as described above, a safe distance for working on the live wire is ensured at the location of the existing wire 30 where it is being moved.

[0138] Then, in the main operation process S240, when performing the indirect live-line power distribution method without power outage based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention, the indirect live-line operation of the power distribution line is carried out.

[0139] Referring to Figure 18, in the present invention, during the main operation at a power distribution line with one or more circuits, the operator uses a wire shovel 70 to enter the line while maintaining a safe distance from the wire shovel for indirect operations, and uses wire shovel poles 80 and other wire shovel operation equipment to perform the main operation on the power distribution line.

[0140] Then, in the wire reset process S250, when performing the indirect live wire power distribution method without power outage based on the indirect live wire operation safety distance assurance method using the indirect live wire crossarm extension arm of the present invention, as described above, after the main operation is completed, the wire 30 of the distribution line transferred to the indirect live wire crossarm extension arm 1 is transferred and reset to the crossarm 20.

[0141] Referring to Figure 19, using the wire work pole 80 and wire work equipment, the wire 30 fixed to the wire work crossarm extension arm 1 is separated and transferred to the crossarm 20 for fixation through indirect wire work.

[0142] Then, in the finishing process S260, when performing the indirect live wire power distribution method without power outage based on the indirect live wire operation safety distance assurance method using the indirect live wire crossarm extension arm of the present invention, referring to FIG20, as described above, with the wire 30 in the reset state, the live wire operation pole 80 and the live wire operation equipment such as the live wire crossarm extension arm 1 can be removed.

[0143] Therefore, in the indirect power distribution method without power outage based on the indirect power distribution method using the indirect power distribution method of the crossarm extension arm of the present invention, when working on the upper and lower circuits of the power distribution line, the indirect power distribution safety distance at the power distribution line is ensured and the work is carried out in a state of interval of the ensured safety distance, and the work can be carried out by indirect power distribution when entering the power distribution bucket 70.

[0144] On the other hand, in the indirect live-line power distribution method without power outages based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention, the operation in the main operation process S240 is not limited, but can be a variety of operations. For example, various operations such as tension pole change, crossarm replacement, suspension insulator replacement, LP insulator replacement, sag adjustment, LA setting and removal, insertion post new installation, pole replacement, protective equipment setting and removal, jumper replacement, wire replacement, line inspection, and switch setting and removal can be achieved through indirect live-line operations.

[0145] Therefore, the embodiments are described as follows. First, in this invention, the main operation process S240 can perform the tensioning column change operation of changing the existing upper distribution line needle tension column to a tension column.

[0146] At this point, Zhang Zhu changed his operation. First, referring to Figures 22 to 24, and after ensuring the safe distance for indirect live-line operations of the lower power distribution line, he used the live-line bucket 70 to enter the upper power distribution line.

[0147] Then, the wire 31 of the upper distribution line can be separated from the LP insulator 52. At this time, as described above, when separating the wire 31, the separated wire 31 can be separated using a conventional indirect live wire lifting arm or the like.

[0148] Then, using conventional wire work equipment such as wire work poles, the tension pole crossarm 21a installed on the utility pole 10 is removed through indirect wire work, and a new tension pole crossarm 21b is installed at the location where it was removed.

[0149] Then, the separated wire 31 is placed on the crossarm 21b of the tension post. With the tension post crossarm 21b symmetrically set on both sides of the tension post crossarm 21b by a normal tensioning machine (not shown in the figure), the wire 31 is clamped by the tensioning machine and fixed to the suspension insulator 51 formed on the tension post crossarm 21b.

[0150] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the pole changing operation of the upper power distribution line.

[0151] Furthermore, in the main operation process S240 of this invention, when there are existing pin tension posts on the upper power distribution line, a crossarm replacement operation can be performed to replace the crossarm with a new crossarm.

[0152] At this point, for the crossarm replacement operation, referring to Figures 25 to 27, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, use the live wire bucket 70 to enter the upper power distribution line.

[0153] Then, the wire 31 of the upper distribution line is separated from the LP insulator 52 and from the existing crossarm 21. At this time, as described above, when separating the wire 31, the separated wire 31 can be separated using a conventional indirect live wire lifting arm or the like.

[0154] Then, using conventional wire work equipment such as wire work poles, the existing crossarm 21 installed on the utility pole 10 is removed through indirect wire work, and a new crossarm 21' is installed in the removed position.

[0155] Then, the separated wire 31 is placed on the new crossarm 21', and the wire is installed and fixed to the LP insulator 52.

[0156] Therefore, in the main operation process S240 of the present invention, for the lower power distribution line as described above, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the crossarm replacement operation of the upper power distribution line.

[0157] In addition, in this invention, the main operation process S240 can perform suspension insulator replacement work to replace the existing suspension insulators of the upper power distribution line.

[0158] At this time, for the suspension insulator replacement operation, referring to Figures 28 to 31, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, use the live wire bucket 70 to enter the upper power distribution line.

[0159] Then, the wire tensioning machine 60 is set on the crossarm 21 of the upper power distribution line. The wire tensioning machine 60 is symmetrically set on both sides of the crossarm 21 along the length direction of the wire 31, and the wire tensioning machine 60 is used to clamp and fix the wire 31.

[0160] Then, remove the suspension insulator 51 and use the tensioning machine 60 to pull the wire 31 to release the tension applied to the suspension insulator 51 that connects the crossarm 21 and the wire 31, that is, to put it in a tension-free state.

[0161] Then, replace the suspension insulator 51 by separating and removing the existing suspension insulator 51 from the crossarm 21 and the wire 31, and then connecting the new suspension insulator 51' to the removed position.

[0162] Then, release the tensioning machine 60 that is pulling the wire 31, apply tension to the wire 31, and then separate and remove the tensioning machine 60 from the crossarm 21 and the wire 31.

[0163] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the suspension insulator replacement operation of the upper power distribution line.

[0164] In addition, in this invention, the main operation process S240 can perform LP insulator replacement operation to replace the existing LP insulators of the upper power distribution line.

[0165] At this time, for the LP insulator replacement operation, referring to Figures 32 to 34, firstly, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, the live wire bucket 70 is used to enter the upper power distribution line.

[0166] Then, the wire 31 of the upper distribution line is separated from the installed LP insulator 52. At this time, as described above, when separating the wire 31, the separated wire 31 can be separated using a conventional indirect live wire lifting arm or the like.

[0167] Then, using conventional wire work poles and other wire work equipment, the existing LP insulators 52 installed on the crossarm 21 are separated and removed through indirect wire work, and new LP insulators 52' are installed at the removal location.

[0168] Then, place the separated wire 31 onto the new LP insulator 52', and install and fix the wire onto the new LP insulator 52'.

[0169] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the LP insulator replacement operation of the upper power distribution line.

[0170] In addition, in this invention, the main operation process S240 can perform sag adjustment operation to adjust the sag of the existing upper power distribution line.

[0171] At this time, the sag adjustment operation is carried out. Referring to Figures 35 to 38, firstly, with the safe distance for indirect live-line operation of the lower power distribution line already ensured, the live-line bucket 70 is used to enter the upper power distribution line.

[0172] Then, the wire tensioning machine 60 is set on both sides of the crossarm 21 of the upper power distribution line, and the wire tensioning machine 60 is used to clamp and fix the wires 31 on both sides.

[0173] Then, operate the tensioning machine 60 to pull or release the wire while adjusting the appropriate slack of the wire 31.

[0174] Then, the tension clamp 31a of the wire 31 is separated, and the separated tension clamp 31a is repositioned and connected to the position of the wire 31 with the sag adjusted.

[0175] Then, release the tensioning machine 60 that is pulling the wire 31, apply tension to the wire 31 whose slack has been adjusted, and then separate and remove the tensioning machine 60 from the crossarm 21 and the wire 31.

[0176] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the sag adjustment operation of the upper power distribution line.

[0177] In addition, in this invention, the main operation process S240 can perform the LA installation operation of installing LA (lightning arrester) at the existing upstream power distribution line.

[0178] At this time, the LA setup operation is carried out. Referring to Figures 39 to 40, firstly, with the safe distance for indirect live-line operation of the lower power distribution line ensured, the live-line bucket 70 is used to enter the upper power distribution line.

[0179] Then, LA 53 is installed on the crossarm 21 of the upper power distribution line. At this time, the installed LA 53 can be brought down from the top and close to the crossarm 21 using the winch of the fire line bucket 70, and installed through indirect fire line operation using the fire line operation pole 80, etc.

[0180] Then, connect the grounding wire 53a of the already installed LA 53 to the pole grounding wire 53c, and connect the grounding wire 53a led out from LA 53 to the grounding terminal of the pole grounding wire 53c installed on the pole 10.

[0181] Then, connect the primary side lead 53b of the already set LA 53, strip the insulation on the part of the wire 31 where the primary side lead 53b is to be connected, and squeeze and connect the primary side lead 53b to the stripped position.

[0182] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, the operator can safely enter and perform the LA setting operation of the upper power distribution line while ensuring the safe distance for indirect live wire operation.

[0183] In addition, in this invention, the main operation process S240 can perform the LA removal operation to remove the LA (lightning arrester) installed at the existing upper power distribution line.

[0184] At this time, for the LA demolition operation, referring to Figures 41 to 42, firstly, after ensuring the safe distance for indirect live-line operations of the lower power distribution line, the live-line bucket 70 is used to enter the upper power distribution line.

[0185] Then, the existing LA 53 of the crossarm 21 already installed on the upper power distribution line is separated from the primary side lead 53b connected to the wire 31 by cutting it using a cutting machine such as the live wire operation pole 80.

[0186] Then, the grounding wire 53a is separated from the existing pole grounding wire 53c, which is connected to the crossarm 21 of the upper power distribution line. This can be done by cutting it off using a cutting machine such as the live wire operation pole 80.

[0187] Then, remove the existing LA 53 of the crossarm 21 that has been installed on the upper power distribution line, loosen the bolts or nuts fixed to the crossarm 21, release the fixing force of the bracket (not shown in the figure) that has installed the existing LA 53, and use the winch of the wire bucket 70 to pull it up and remove it.

[0188] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, the operator can safely enter and carry out the LA removal operation of the upper power distribution line while ensuring the safe distance for indirect live wire operation.

[0189] In addition, in this invention, the main operation process S240 can perform the operation of installing new insertion posts between utility poles and installing new insertion posts for existing power distribution lines with one or more circuits.

[0190] At this point, for the new installation of the insertion post, referring to Figures 43 to 45, first, after ensuring the safe distance for indirect live-line work of the lower power distribution line, use the live-line bucket 70 to enter the upper power distribution line.

[0191] Then, disconnect the upper power distribution line wire 31 and the overhead ground wire 32, and use a conventional indirect live wire lifting arm or similar device to transfer the wire 31 and the overhead ground wire 32 to a safe location by leading them upwards.

[0192] Then, just like the usual construction of new utility poles, insert a new column 11 between utility poles 10 and 10.

[0193] Then, by using the newly installed insertion post 11, the above-mentioned lead wire 31 and overhead ground wire 32 can be installed on the tension post and overhead ground wire bracket.

[0194] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the new installation operation of the insertion post of the power distribution line with more than one circuit.

[0195] In addition, in this invention, the main operation process S240 can perform pole replacement operations for replacing existing power distribution lines with one or more circuits.

[0196] At this time, for the pole replacement operation, referring to Figures 46 to 49, first, after ensuring the safe distance for indirect live wire work of the lower power distribution line, use the live wire bucket 70 to enter the upper power distribution line.

[0197] Then, using a standard indirect live wire lifting arm or similar device, the wire 30 can be moved to a safe location.

[0198] Then, remove the utility pole 10 from which the wires 30 and 31 have been separated. Similar to the usual construction of new utility poles, a new utility pole 10' can be installed.

[0199] Then, the lower power distribution line 30, the upper power distribution line 31, and the overhead ground wire 32 are installed on the newly installed utility pole 10', and the existing utility pole 10 to be removed is then removed.

[0200] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the pole replacement operation for power distribution lines with more than one circuit.

[0201] In addition, in this invention, the main operation process S240 can perform the installation of protective equipment, including protective pipes and protective insulating covers, in existing upstream power distribution lines.

[0202] At this time, the protective gear setting operation is carried out. Referring to Figures 50 to 52, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, the live wire bucket 70 is used to enter the upper power distribution line.

[0203] Then, a standard protective inserter 55a is installed, or a front-end tool is used on the live wire pole. In this embodiment of the invention, the standard protective inserter 55a is installed on the wire 31 that needs protection.

[0204] Then, set up the protective device 55, with one end of the protective device 55 connected to the protective device inserter 55a and operate the protective device inserter 55a to wrap the wire 31 from the front end of the protective device 55 and set it up.

[0205] In addition, during the installation of protective equipment 55, at the LP insulator of the crossarm 21, a normal protective insulating cover 55' can be installed by using a live-line work pole or the like for indirect live-line work.

[0206] Then, after the protective gear 55 is installed, the installed protective gear inserter 55a can be removed.

[0207] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the protective equipment installation operation for the upper power distribution line.

[0208] In addition, in this invention, the main operation process S240 can perform the removal of protective equipment, including protective pipes and protective insulating covers installed on existing upper power distribution lines.

[0209] At this point, the protective gear removal operation is carried out. Referring to Figures 53 and 54, firstly, after ensuring the safe distance for indirect live-line operations of the lower power distribution line, the live-line bucket 70 is used to enter the upper power distribution line.

[0210] Then, the protective gear 55 and the protective insulating cover 55' can be removed using the usual fire-working pole 80.

[0211] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the removal of the protective gear for the upper power distribution line.

[0212] In addition, in this invention, the main operation process S240 can perform jumper replacement work to replace the jumpers of the existing upper power distribution line.

[0213] At this point, the jumper replacement operation is carried out. Referring to Figures 55 to 57, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, the live wire bucket 70 is used to enter the upper power distribution line.

[0214] Then, install a bypass jumper cable 56a. Using the bypass jumper cable 56a, connect the wires 31 on both sides of the upper power distribution line with the utility pole 10 as the center.

[0215] Then, the existing jumper 56 connecting the wires 31 on both sides can be separated and removed.

[0216] Then, connect and install a new jumper 56' at the location where the existing jumper 56 has been removed, and disconnect and remove the bypass jumper cable 56a.

[0217] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the jumper replacement operation of the upper power distribution line.

[0218] In addition, in this invention, the main operation process S240 can perform wire replacement operation to replace the wires of the existing upper power distribution line.

[0219] At this point, the wire replacement operation is carried out. Referring to Figures 58 and 59, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, the live wire bucket 70 is used to enter the upper power distribution line.

[0220] Then, the old wire 31 can be separated from the LP insulator 52 or suspension insulator of the upper power distribution line. In this embodiment of the invention, the LP insulator 52 is separated.

[0221] Then, the separated old wires are moved, which can be done using a lifting arm or similar device for indirect live wire separation.

[0222] Then, the setting wire 31' is set at the position where the old wire 31 is separated. Although it is not shown in the figure, the setting wire 31' can be set and fixed to the LP insulator 52 by the usual wiring and tightening operations.

[0223] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, the operator can safely enter and perform the wire replacement operation of the upper power distribution line while ensuring the safe distance for indirect live wire operation.

[0224] In addition, in this invention, the main operation process S240 can perform line inspection operations to inspect existing upstream power distribution lines.

[0225] At this time, for line inspection work, referring to Figure 60, first, after ensuring the safe distance for indirect live wire work of the lower power distribution line, use the live wire bucket 70 to enter the upper power distribution line.

[0226] Then, the upper power distribution lines are inspected. At this time, the inspection of the lines is not limited. Various inspections of the upper power distribution lines can be carried out, such as the condition of the tension poles, the condition of various insulators, the sag of the wires, the LA condition, the COS condition, or the condition of the jumpers.

[0227] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out line inspection work on the upper power distribution line.

[0228] In addition, in this invention, the main operation process S240 can perform the switch setting operation of existing upper power distribution lines.

[0229] At this time, the switch setting operation is carried out. Referring to Figures 61 to 63, firstly, with the safe distance for indirect live wire operation of the lower power distribution line already ensured, the live wire bucket 70 is used to enter the upper power distribution line.

[0230] Then, install a bypass jumper cable 56a. Using the bypass jumper cable 56a, connect the wires 31 on both sides of the upper power distribution line with the utility pole 10 as the center.

[0231] Then, disconnect the existing jumper 56 connecting the wires 31 on both sides, install the switch 58, and use the switch cable 58a to connect the wires 31 on both sides respectively.

[0232] Then, engage the switch 58 and disconnect and remove the bypass jumper cable 56a.

[0233] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and perform the switch setting work for the upper power distribution line.

[0234] In addition, in this invention, the main operation process S240 can perform the removal of the switchgear of the existing upper power distribution line.

[0235] At this point, the switch removal operation is carried out. Referring to Figures 64 to 66, first, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, the live wire bucket 70 is used to enter the upper power distribution line.

[0236] Then, using the bypass jumper cable 56a as the center, connect the wires 31 on both sides of the utility pole 10.

[0237] Then, cut off the switch 58 and remove it from the utility pole 10.

[0238] Then, connect the wires 31 on both sides to the new jumper 56', and disconnect and remove the bypass jumper cable 56a from the wires 31 on both sides.

[0239] Therefore, in the main operation process S240 of the present invention, as described above, for the lower power distribution line, under the condition of ensuring the safe distance for indirect live wire operation, the operator can safely enter and carry out the removal of the switch of the upper power distribution line.

[0240] On the one hand, although not shown in the figure, when performing the indirect live line power distribution method without power outage based on the indirect live line operation safety distance assurance method using the indirect live line crossarm extension arm of the present invention, the crossarm 21 formed on the upper and lower end of the power distribution line can be configured as a variety of crossarms, such as a common single crossarm, a double crossarm, or a single type of tension crossarm, depending on the configuration of the crossarm 21 on the pole 10.

[0241] In addition, referring to Figure 67, depending on the position of the crossarm 21 on the utility pole, various tension column forms are applicable, such as ordinary tension column (a), extended tension column (b), or offset tension column (c). Depending on the tension column, a common needle tension column, a drainage column, or a tension-resistant column can be applied.

[0242] As described above, the indirect live-line operation safety distance assurance method based on the indirect live-line operation safety distance assurance method using the indirect live-line crossarm extension arm of the present invention enables indirect live-line operation without power outage when working on distribution lines with more than one circuit above and below, while ensuring the safety distance for indirect live-line operation on the distribution lines. In particular, it enables simpler and faster indirect live-line operation and ensures the safety of the operators.

[0243] This invention relates to the possibility of industrial application of an indirect live-line crossarm extension arm and a method for ensuring safe distances for indirect live-line operations using the same, as well as an indirect live-line power distribution method without power outages based on the method for ensuring safe distances for indirect live-line operations. By extending the crossarm, a safe distance for indirect live-line operations is ensured, enabling safe indirect live-line operations on power distribution lines. For power distribution lines with one or more circuits above and below, through the extension of the crossarm and the movement of the wires, while ensuring the safe distance for indirect live-line operations, it is possible to enter power distribution lines with one or more circuits above and the upper power distribution line to perform safe indirect live-line operations such as pole replacement, crossarm replacement, suspension insulator replacement, LP insulator replacement, sag adjustment, LA installation and removal, new insertion post installation, pole replacement, protective equipment installation and removal, jumper replacement, wire replacement, line inspection, and switch installation and removal.

Claims

1. A crossarm extension arm for indirect live wires, characterized in that, include: A pipe-shaped connecting portion (100) is open to the front and is used to connect to the end of the crossarm of a utility pole; an extension portion (200) extends from the rear end of the connecting portion (100) and has a plurality of mounting holes (210); and a mounting component (300) is formed in the connecting portion (100) to apply a fixing force to fasten the connecting portion (100) to the crossarm. The mounting component (300) includes: a support plate (310) which is formed of a plate shape with a front-to-back length, a spacer (311) formed in the middle part facing outwards, a guide pin (312) formed in the center of the rear end, a spring support pin (313) formed in the middle part, and a rod guide hole (314) in the shape of a horizontal elongated hole formed on the rear side of the spring support pin (313); an operating plate (320) which is accommodated between the spacers (311) and slides back and forth, a locking protrusion (321) protruding from the front end, and the spring support pin (312) passing through the middle part of the front side. 3) A horizontal elongated hole-shaped spring guide groove (322), and a spring (323) spring-loaded onto the spring support pin (313) and having a forward moving force, with a guide pin guide groove (324) formed at the rear end to accommodate and guide the guide pin (312); Fasteners (330) (330'), which are formed in pairs on both sides in the width direction, each with a rear shaft (331) connected to the front of the support plate (310), rotating and spring-loaded by an open spring (332), with a front end having The open elastic force has a pin fixing groove (333) formed at the front opposite to each other, and a locking groove (334) with a rear expansion type stepped difference formed at the rear opposite to each other, forming a locking protrusion (321) that locks the operating plate (320); and an operating rod (340) that passes through the rod guide hole (314) of the support plate (310) and is attached to the operating plate (320), and applies a rearward moving force of the operating plate (320) to the outside through indirect fire operation using the fire-operating rod.

2. The indirect live wire extension arm according to claim 1, characterized in that, The connecting part (100) includes a connecting part (110) for a crossarm of a pin tensioning post that can be applied to a power distribution line. It has a crossarm insertion space (111) inside, which is open to the front and allows the insertion of the crossarm for the pin tensioning post. The upper surface also has a crossarm guide groove (112) that is open to the front and guides the crossarm in and out. The middle part of both sides also has a pair of fixing pin guide grooves (113) that are open to the front. A pin locking part (114) is also formed, which protrudes forward at the top and is inclined at the bottom with the fixing pin guide groove (113) as the center. The bottom surface also has a working hole (115) that communicates with the crossarm insertion space (111). One side also includes a mounting part for mounting the mounting part. The mounting component housing (116) of the component (300) is open to the front and has a fixing pin guide groove (117) corresponding to the fixing pin guide groove (113) at the front end and a rod through hole (118) corresponding to the rod guide hole (314) in the middle. In the mounting component (300), the support plate (310) is fixedly installed on the inner side of the mounting component housing (115), so that the fasteners (330) and (330') are located in front. The opening spring (332) is springed on the inner side of the mounting component housing (115). The operating rod (340) passes through the rod through hole (118) and the rod guide hole (314) and is fixedly installed on the operating plate (320).

3. The indirect live wire extension arm according to claim 1, characterized in that, The joint (100) includes a tension pole joint (120) applicable to the crossarm of a tension pole in a power distribution line. It has an internal crossarm insertion space (121) that opens forward to allow insertion of the crossarm. The upper and lower surfaces also have forward-opening slots (122). The front middle portion of both sides also has a pair of forward-opening bolt guide slots (123). One side also has a mounting component housing (125) for mounting the mounting component (300), which opens forward and has a bolt guide slot (123) at its front end corresponding to the bolt guide slot (123). 26), a rod through hole (127) corresponding to the rod guide hole (314) is formed in the middle part, and an inclined reinforcing part (128) is formed on the other side protruding and inserted between the bow-shaped shackles. In the mounting component (300), the support plate (310) is fixedly installed on the inner side of the mounting component housing (125), so that the fastener (330) (330') is in front. The open spring (332) is springed on the inner side of the mounting component housing (125). The operating rod (340) passes through the rod through hole (127) and the rod guide hole (314) and is fixedly installed on the operating plate (320).

4. The indirect live wire extension arm according to claim 1, characterized in that, The joint (100) includes a single tension column joint (130) that can be applied to a single type tension crossarm in a power distribution line. It is configured to have a smaller diameter than the single tension column crossarm, so that it can be inserted into the interior of the single tension column crossarm. The upper and lower surfaces are also formed with pin guide grooves (131) that are open to the front. The upper surface is also formed with a rod through hole (132) that faces the rear of the pin guide groove (131) and corresponds to the rod guide hole (314). In the mounting component (300), the support plate (310) is fixedly installed on the upper inner side of the single tension column joint (130), so that the fastener (330) (330') is in front. The open spring (332) is spring-loaded inside the joint (100). The operating rod (340) passes through the rod through hole (132) and the rod guide hole (314) and is fixedly installed on the operating plate (320).

5. A method for ensuring safe working distance in indirect fire-fighting operations using an extension arm for indirect fire-fighting, characterized in that, The indirect live-line work on UHV power distribution lines with one or more circuits using the indirect live-line crossarm extension arm as described in any one of claims 1-4 includes: a work preparation process (S110), carrying live-line work equipment such as an indirect live-line extension arm for crossarm extension including a live-line work pole, and moving to the power distribution line using a live-line bucket; a crossarm extension process (S120), using the live-line work pole and live-line work equipment, extending the crossarm by connecting the indirect live-line crossarm extension arm to one or both sides of the crossarm of the power distribution line through indirect live-line work; a work safety distance assurance process (S130), transferring the power line of the power distribution line to the indirect live-line crossarm extension arm to ensure the indirect live-line work safety distance; a power line reset process (S140), transferring the power line of the power distribution line transferred to the indirect live-line crossarm extension arm to the crossarm and resetting it; and a finishing process (S150), dismantling the indirect live-line crossarm extension arm and other live-line work equipment using the live-line work pole and live-line work equipment.

6. A method for uninterrupted power distribution along indirect live lines based on a method for ensuring safe working distances along indirect live lines using a crossarm extension arm, characterized in that, Using the indirect live-line extension arm for crossarm extension as described in any one of claims 1-4 to perform indirect live-line work on UHV distribution lines with one or more circuits, includes: a work preparation process (S220), carrying live-line work equipment such as an indirect live-line extension arm for crossarm extension including a live-line work pole, and moving to the distribution line using a live-line bucket; a crossarm extension process (S220), using the live-line work pole and live-line work equipment, extending the crossarm by attaching the indirect live-line extension arm to one or both sides of the crossarm of the distribution line through indirect live-line work; and a work safety distance assurance process (S230), extending the distribution line... The power lines of the line are transferred to the indirect live wire extension arm to ensure the safe distance for indirect live wire work; main operation process (S240): after ensuring the safe distance for indirect live wire work of the power distribution line, the operator uses a live wire bucket to carry out indirect live wire work of the power distribution line; wire reset process (S250): after completing the indirect live wire work of the power distribution line, the power lines of the power distribution line transferred to the indirect live wire extension arm are transferred to the crossarm and reset; and finishing process (S260): using a live wire work pole and live wire work equipment, the indirect live wire extension arm and other live wire work equipment are dismantled.

7. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves changing the existing pin tensioning poles of the upper distribution line to tensioning poles. During the tensioning pole change operation, under the condition that the safe distance for indirect live wire operation of the lower distribution line has been ensured, a live wire bucket is used to enter and separate the wire from the LP insulator of the upper distribution line. The existing crossarm for the pin tensioning pole is removed, and a new crossarm for the tensioning pole is installed. Tensioning machines are installed on both sides of the installed crossarm for the tensioning pole, and the wire is brought close to the tensioning machine. The wire is clamped and fixed on both sides by the tensioning machine and connected and fixed to the suspension insulator. The tensioning machine is then removed.

8. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using a crossarm extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing the existing crossarm of the upper power distribution line with a new crossarm. During the crossarm replacement operation, under the condition that the safe distance for indirect live wire operation of the lower power distribution line has been ensured, a live wire bucket is used to enter and separate the wire of the upper power distribution line from the existing crossarm, remove the existing crossarm, set up a new crossarm, install the wire on the set new crossarm, and fix it in place.

9. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using a crossarm extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing the existing suspension insulators of the upper distribution line. During the replacement operation, after ensuring the safe distance between the lower distribution line and the live wire, a live wire bucket is used to enter the line and a tensioning machine is placed on the crossarm of the upper distribution line. The tensioning machine is used to clamp and fix the wire, and the tensioning machine is pulled to put the suspension insulator in a tension-free state. In the tension-free state, the existing suspension insulator is removed from the crossarm, a new suspension insulator is placed at the removal location, the tensioning machine is released, the tension applied to the wire is released, and the tensioning machine is removed.

10. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing the existing LP insulators of the upper distribution line. During the LP insulator replacement operation, after ensuring the safe distance for indirect live wire operations of the lower distribution line, a live wire bucket is used to enter and separate the wires fixed to the LP insulators of the upper distribution line. The existing LP insulators fixed to the crossarms are then removed from the crossarms. New LP insulators are installed at the location of the removed existing LP insulators, and the wires are installed and fixed to the upper part of the new LP insulators.

11. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using a crossarm extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves adjusting the sag of the existing upper power distribution line. During the sag adjustment, after ensuring the safe distance for indirect live wire operations of the lower power distribution line, a live wire bucket is used to enter and a wire tensioning machine is placed on the crossarm of the upper power distribution line. The wire tensioning machine is used to clamp and fix the wire. The wire tensioning machine is operated to pull or loosen the fixed wire while adjusting the sag. The tension clamp of the wire with adjusted sag is separated and then placed back in the position with adjusted sag. The wire with adjusted sag is then connected and fixed. The wire tensioning machine is released to release the tension applied to the wire and the wire tensioning machine is removed.

12. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves installing an LA (lightning arrester) on the existing upper power distribution line. During the LA installation, after ensuring the safe distance between the lower power distribution line and the live wire, a live wire bucket is used to enter and install the LA on the upper power distribution line. The grounding wire of the installed LA is connected to the grounding wire of the power pole, and the installed LA and the power line are connected through the primary side lead wire.

13. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves removing the existing LA (lightning arrester) installed on the existing upper power distribution line. During the LA removal operation, with the safe distance between the lower power distribution line and the indirect live wire operation ensured, a live wire bucket is used to enter and separate the primary side lead of the existing LA installed on the upper power distribution line. The grounding wire of the existing LA that connects the installed existing LA and the power line is also separated. The fixing force of the existing LA is released from the crossarm and it is then separated from the crossarm.

14. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves installing new insertion posts between utility poles and installing new insertion posts for existing power distribution lines with one or more circuits. During the installation of new insertion posts, under the condition that the safe distance for indirect live wire operations of the lower power distribution line has been ensured, a live wire bucket is used to enter and separate the power wires and overhead ground wires of the upper power distribution line, move them to a safe position, install new insertion posts between utility poles, set the overhead ground wire support and tensioning post on the newly installed insertion posts, and install the power wires on the tensioning post and overhead ground wire support of the newly installed insertion posts.

15. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing existing power poles for power distribution lines with one or more circuits. During the replacement operation, after ensuring a safe working distance between the lower power distribution line and the live wire, a live wire bucket is used to enter the pole, separate the upper power distribution line's wires and overhead ground wires, and move them to a safe location. A new power pole is then installed, a crossarm is placed on the new pole, and the upper wires are connected and fixed. The lower power distribution line's wires are then separated and moved to a safe location on the new pole. After removing the existing power pole, the wires are connected and fixed to the new pole.

16. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves setting up protective equipment on the existing upper power distribution line. During the protective equipment setting operation, after ensuring the safe distance for indirect live wire operations on the lower power distribution line, a live wire bucket is used to enter and set up the protective equipment operation tool on the upper power distribution line, or set up the front tool on the live wire pole. The protective equipment is then set up by wrapping the wire with the set protective equipment operation tool or the front tool, and the protective equipment operation tool or the front tool is removed.

17. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves removing protective equipment from the existing upper power distribution line. During the removal operation, after ensuring the safe distance for indirect live wire operations from the lower power distribution line, a live wire bucket is used to enter and a live wire operation pole is used to remove the protective equipment through indirect live wire operations.

18. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing the existing jumpers of the upper power distribution line. During the jumper replacement operation, after ensuring the safe distance between the lower power distribution line and the live wire, a live wire bucket is used to enter the line and connect the wires on both sides of the upper power distribution line through a bypass jumper cable with the utility pole as the center. The existing jumper that connects and fixes the wires on both sides is separated and removed. A new jumper is installed at the location where the existing jumper is removed, and the bypass jumper cable is removed.

19. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using a crossarm extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves replacing the existing upper power distribution line wires. During the wire replacement operation, after ensuring the safe distance for indirect live wire operation of the lower power distribution line, a live wire bucket is used to enter and separate the old wires from the LP insulators or suspension insulators of the upper power distribution line. The separated old wires are moved using an indirect live wire lifting arm, and the new wire is installed and fixed to the LP insulators or suspension insulators of the separated old wires.

20. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves inspecting the existing upper power distribution lines. During the line inspection, a wire shovel is used to enter and inspect the upper power distribution lines, provided that the safe distance between the lower power distribution lines and the live wire is ensured.

21. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The main operation process (S240) involves setting up the switch on the existing upper power distribution line. During the switch setting operation, after ensuring the safe distance for indirect live wire operation of the lower power distribution line, a live wire bucket is used to enter and connect the wires on both sides of the upper power distribution line through a bypass jumper cable with the power pole as the center. The existing jumper connecting and fixing the wires on both sides is separated, the switch is set on the power pole, the switch is put in, and the bypass jumper cable is removed.

22. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line crossarm, as described in claim 6, is characterized in that... The main operation process (S240) involves removing the switch from the existing upper power distribution line. During the removal, after ensuring the safe distance between the lower power distribution line and the indirect live wire, a live wire bucket is used to enter the line. Centered on the utility pole, the switch is removed from the utility pole by connecting the wires on both sides of the upper power distribution line through a bypass jumper cable. New jumpers are then connected on both sides, and the bypass jumper cable is removed.

23. The indirect live-line power distribution method without power outages based on the method for ensuring safe working distance for indirect live-line operations using an extension arm for indirect live-line work, as described in claim 6, is characterized in that... The power distribution lines at the upper and lower ends to be operated are classified according to the form of the crossarm on the pole, which may be a single crossarm, double crossarm, or single type of tension crossarm. Depending on the position of the crossarm on the pole and the tensioning method, needle tensioning poles, current-draining tensioning poles, or tensioning poles may be used in the form of ordinary tensioning poles, extended tensioning poles, or off-center tensioning poles.

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