Bus duct first-aid repair method and first-aid repair device thereof

Abstract

The invention provides a bus duct first-aid repair method and a first-aid repair device thereof, and the method comprises the steps: S1, determining the position of a fault bus duct; S2, cutting off the connection between a bus duct connector of the fault bus duct and other bus ducts, and transversely arranging the bus duct connector; a first connecting copper bar connected with an A / N phase and a second connecting copper bar connected with a B / C phase are installed in the bus duct connector; s3, connecting a wiring terminal to one ends, far away from the bus splicer, of the first connecting copper bar and the second connecting copper bar, connecting a cable to the lower end of the wiring terminal, arranging a puncture wire clamp on the cable, and connecting a wire to a user side through the puncture wire clamp to form a temporary power supply loop; and S4, replacing the fault bus duct after temporary power supply is guaranteed. According to the invention, a non-fault bus duct (connected with a fault bus duct) can be rapidly connected to a user side, a temporary power supply loop is formed to restore power supply, and subsequent maintenance and replacement of the fault bus duct are facilitated.

Description

Technical Field

[0001] This invention belongs to the field of power emergency repair technology, specifically relating to a busbar trunking emergency repair method and its repair device. Background Technology

[0002] Currently, in the operating environment of busbar trunking in electrical shafts and basements of high-rise buildings, water leakage, roof waterproofing failure, fire sprinkler operation, and other reasons can cause water to seep into the busbar trunking, ultimately leading to short circuit faults or even burning out the busbar trunking and preventing power supply.

[0003] In reality, there may be more than one faulty busbar section, and the space between the busbar sections is small, making emergency repairs and power restoration inconvenient. Furthermore, the inconsistent dimensions, copper busbar phase spacing, and copper busbar thickness among different busbar manufacturers make rapid matching difficult, significantly impacting power supply reliability. Therefore, a rapid emergency repair method for busbars is needed, and this application is based on this. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a busbar trunking emergency repair method and device, which can quickly connect the non-faulty busbar trunking (connected to the faulty busbar trunking) to the user side to form a temporary power supply circuit to restore power supply, and facilitate subsequent repair and replacement of the faulty busbar trunking.

[0005] This invention provides the following technical solution:

[0006] This invention provides a method for emergency repair of busbar trunking, comprising the following steps:

[0007] S1. Determine the location of the faulty busbar:

[0008] S2. Disconnect the busbar connector of the faulty busbar trunking from other busbar trunkings, and place the busbar connector horizontally. Install the first connecting copper busbar for connecting phases A / N and the second connecting copper busbar for connecting phases B / C inside the busbar connector.

[0009] S3. Connect a terminal block to the end of the first and second connecting copper busbars away from the busbar connector, connect a cable to the lower end of the terminal block, install a piercing clamp on the cable, and connect a wire to the user side through the piercing clamp to form a temporary power supply circuit.

[0010] S4. Replace the faulty busbar after ensuring temporary power supply.

[0011] Further, in step S1, the location of the faulty busbar trunking is determined by visually inspecting each section along the installation path of the busbar trunking. Busbar trunking with obvious signs of burning, discharge, or water stains on the casing or connector is initially identified as a faulty busbar trunking. Its insulation resistance is measured, and if it is less than 200MΩ, it is confirmed as a faulty busbar trunking.

[0012] Furthermore, in step S2, a gasket is provided between the first connecting copper busbar, the second connecting copper busbar and the busbar connector.

[0013] Furthermore, in step S3, the spacing between each phase cable or conductor is ≥100mm, and the cable or conductor must not come into contact with the metal casing of the busbar trunking.

[0014] Furthermore, in step S3, an insulating protective sleeve is used to insulate and isolate the fixed position of the wiring terminal.

[0015] The present invention also provides a busbar trunking emergency repair device, the device comprising a first connecting copper busbar and a second connecting copper busbar, the first connecting copper busbar and the second connecting copper busbar being inserted into a busbar trunking connector, the first connecting copper busbar and the second connecting copper busbar each comprising a connector connecting section, a heat-shrinkable insulation section and a terminal connecting section connected in sequence, the connector connecting section being connected to the busbar trunking connector, the terminal connecting section having a connecting hole, a terminal being provided in the connecting hole by fasteners, the lower end of the terminal being connected to a cable, the cable having a piercing clamp having a wire connected to the piercing clamp, the wire being connected to the user side to form a temporary power supply circuit.

[0016] An insulating protective sleeve is connected to the terminal block. The insulating protective sleeve includes a sleeve clamp and a copper busbar connection hole. The copper busbar connection hole is located in the middle of the sleeve clamp. The sleeve clamp includes a sleeve clamp fixing member and a sleeve clamp movable member. One end of the sleeve clamp fixing member is hinged to the sleeve clamp movable member. The sleeve clamp movable member can rotate along the hinge to open or close the insulating protective sleeve.

[0017] Furthermore, the first connecting copper busbar and the second connecting copper busbar have different lengths, with the second connecting copper busbar being longer than the first connecting copper busbar.

[0018] Furthermore, the first and second connecting copper busbars are symmetrically arranged at the center of the busbar trunking connector; the heat-shrinkable insulation section is a bent section in the shape of an L.

[0019] The present invention has the following beneficial effects:

[0020] 1. This invention can quickly connect non-faulty busbars (connected to faulty busbars) to the user side, forming a temporary power supply circuit to restore power supply, which facilitates subsequent repair and replacement of faulty busbars.

[0021] 2. This invention completely isolates live parts by using an insulating protective sleeve to prevent personnel from accidentally touching live parts, greatly improving safety during emergency repairs and use. For different specifications of busbar trunking, pre-installed insert shims can be used to ensure the connection between the connecting copper busbar and the busbar trunking. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the busbar trunking emergency repair device in this invention;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of the first and second connecting copper busbars of the busbar trunking emergency repair device in one embodiment of the present invention, wherein (a) is the first connecting copper busbar; and (b) is the second connecting copper busbar.

[0026] Figure 4 This is a schematic diagram of the structure of the insulating protective sleeve in one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection of the non-faulty busbar trunking to the user side after emergency repair in this invention;

[0028] In the diagram: 1-First connecting copper busbar; 2-Second connecting copper busbar; 3-Terminal; 4-Fastener; 5-Cable; 6-Piercing clamp; 7-Insulating protective sleeve; 8-Bus trunking connector; 9-Gasket; 10-Bus trunking; 1001-Bus trunking copper busbar; 101, 201-Connecting holes; 102, 202-Heat shrinkable insulation sections; 103, 203-Connector connecting sections; 701-Clamping fixing part; 702-Clamping movable part; 703-Copper busbar connecting hole. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This invention provides a method for emergency repair of busbar trunking, comprising the following steps:

[0031] S1. Determine the location of the faulty busbar;

[0032] S2. Disconnect the busbar connector of the faulty busbar trunking from other busbar trunkings, and place the busbar connector horizontally. Install the first connecting copper busbar for connecting phases A / N and the second connecting copper busbar for connecting phases B / C inside the busbar connector.

[0033] S3. Connect a terminal block to the end of the first and second connecting copper busbars away from the busbar connector, connect a cable to the lower end of the terminal block, install a piercing clamp on the cable, and connect a wire to the user side through the piercing clamp to form a temporary power supply circuit.

[0034] S4. Replace the faulty busbar after ensuring temporary power supply.

[0035] See Figures 1-5 The present invention also provides a busbar trunking emergency repair device for use in the above-mentioned emergency repair method. The emergency repair device includes a first connecting copper busbar 1 and a second connecting copper busbar 2. The first connecting copper busbar 1 and the second connecting copper busbar 2 are inserted into the busbar trunking connector 8. The first connecting copper busbar 1 and the second connecting copper busbar 2 each include a connector connecting section, a heat-shrinkable insulation section 102 (202) and a terminal connecting section 103 (203) connected in sequence. The connector connecting section is connected to the busbar trunking connector 8. A connecting hole 101 (201) is opened on the terminal connecting section. A terminal 3 is provided in the connecting hole 101 (201) through a fastener 4. The terminal 3 is connected to a cable 5. A piercing clamp 7 is provided on the cable 5. A wire is connected to the piercing clamp 7. The wire is connected to the user side to form a temporary power supply circuit.

[0036] Adjacent busbar trunking 10s are connected by busbar trunking connectors 8. The busbar trunking copper busbars 1001 are inserted into the busbar trunking connectors 8 and make contact with each other to form an electrical connection. When a busbar trunking 10 fails, the electrical connection is broken, and it is necessary to quickly repair and restore power supply to the user side, and then repair the faulty busbar trunking 10.

[0037] For busbar short-circuit faults caused by water leakage in high-rise buildings, emergency repair personnel should immediately take measures to block the leak upon arrival at the site. Starting from the floor affected by the water, a careful visual inspection should be conducted floor by floor downwards. For busbars without obvious signs of burning or discharge and without water stains, the cover plate of the busbar connector should be opened, and the busbar connector removed for inspection. If the upper connector is dry and without water stains, it is preliminarily determined that the low-voltage busbars of this section and the floors below are not affected by water ingress. Busbars with obvious signs of burning or discharge or water stains on the casing or connector area are preliminarily identified as faulty busbars. Their insulation resistance should be measured; if it is less than 200MΩ, it is confirmed as a faulty busbar.

[0038] After determining the location of the faulty busbar 10, the copper busbar connection between the faulty busbar 10 and its connected non-faulty busbar 10 must be disconnected. Since the inherent connection of the busbar 10 is not convenient to disassemble directly, and the space of the busbar connector 8 is limited, the busbar connector 8, which was originally placed vertically, needs to be placed horizontally to disconnect the connection with the copper busbar 1001 of the faulty busbar. After being placed horizontally, the space inside the busbar connector 8 is convenient for inserting the first connecting copper busbar 1 and the second connecting copper busbar 2 to contact and connect the copper busbar 1001 of the non-faulty busbar.

[0039] The busbar trunking 10 generally adopts a three-phase four-wire connection (A, B, C phases and N phase). The first connecting copper busbar 1 is an A / N phase connecting copper busbar, and the second connecting copper busbar 2 is a B / C phase connecting copper busbar. In order to facilitate the spatial arrangement of the first connecting copper busbar 1 and the second connecting copper busbar 2, the heat-shrinkable insulation section 102 (202) is bent outward, forming an L-shaped bend. Moreover, the overall length of the second connecting copper busbar 2 is greater than that of the first connecting copper busbar 1. The first connecting copper busbar 1 and the second connecting copper busbar 2 are symmetrically arranged at the center of the busbar trunking connector 8. The above arrangements are all conducive to the layout of the emergency repair equipment.

[0040] In addition, a gasket 9 is provided between the first connecting copper busbar 1, the second connecting copper busbar 2, and the busbar connector 8. In order to accommodate different busbar specifications, a gasket 9 can be inserted between the connecting copper busbar and the busbar connector 8. The thickness of the gasket 9 can vary depending on the actual situation. Gaskets 9 of various thicknesses can be prepared in advance to deal with different emergency repair situations.

[0041] Afterwards, the terminal block 3 is connected to the connection hole 101 (201) of the first connecting copper busbar 1 and the second connecting copper busbar 2 by fastener 4. The terminal block 3 is connected to the cable 5. A piercing clamp 7 is set on the cable 5. The piercing clamp 7 draws power by penetrating the insulation layer of the cable 5 and connects a wire to it. The wire is connected to each user side to form a temporary power supply circuit and successfully restore power supply. After the line repair is completed, it is convenient to carry out subsequent maintenance on the faulty busbar trunking 10.

[0042] To prevent the current at terminal 3 from affecting emergency repairs, an insulating protective sleeve 7 is connected to terminal 3. Specifically, the insulating protective sleeve 7 includes a sleeve clamp and a copper busbar connection hole 703. The copper busbar connection hole 703 is located in the middle of one side of the sleeve clamp to allow the terminal connection section of the first connecting copper busbar 1 / second connecting copper busbar 2 to be inserted. To facilitate the installation and replacement of the insulating protective sleeve 7, the sleeve clamp includes a sleeve clamp fixing member 710 and a sleeve clamp movable member 702. One end of the sleeve clamp fixing member 701 is hinged to the sleeve clamp movable member 702, and the sleeve clamp movable member 702 can rotate along the hinge to open or close the insulating protective sleeve 7. When the sleeve clamp is closed, the non-hinged ends of the sleeve clamp fixing member 701 and the sleeve clamp movable member 702 are joined together to form the copper busbar connection hole 703.

[0043] During the installation of terminal blocks 3 and cables 5, the spacing between each phase of cable 5 shall be ≥100mm, and cable 5 shall not come into contact with the metal casing of busbar trunking 10. Specifically, insulating pads can be inserted or the metal casing of busbar trunking 10 can be wrapped with the insulating sheath of high-voltage cables to isolate it.

[0044] When laying temporary conductors, each phase of cable or conductor should be fixed layer by layer to prevent stress at the connection between the prefabricated copper busbar and the connector. After wrapping and isolating the cable or conductor with high-voltage cable insulation, it can be tied phase by phase to the low-voltage dense busbar spring support or cable tray with cable ties.

[0045] Through the above-mentioned emergency repair methods and supporting emergency repair equipment, in the actual emergency repair process, the repair personnel can quickly connect the non-faulty busbar trunking (connected to the faulty busbar trunking) to the user side to form a temporary power supply circuit to restore power supply, and then repair or replace the faulty busbar trunking.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for emergency repair of busbar trunking, characterized in that, Includes the following steps: S1. Determine the location of the faulty busbar: S2. Disconnect the busbar connector of the faulty busbar trunking from other busbar trunkings, and place the busbar connector horizontally. Install the first connecting copper busbar for connecting phases A / N and the second connecting copper busbar for connecting phases B / C inside the busbar connector. S3. Connect a terminal block to the end of the first and second connecting copper busbars away from the busbar connector, connect a cable to the lower end of the terminal block, install a piercing clamp on the cable, and connect a wire to the user side through the piercing clamp to form a temporary power supply circuit. S4. Replace the faulty busbar after ensuring temporary power supply.

2. The busbar trunking emergency repair method as described in claim 1, characterized in that: In step S1, the location of the faulty busbar trunking is determined by visually inspecting each section along the installation path of the busbar trunking. Busbar trunking with obvious signs of burning, discharge, or water stains on the casing or connector is initially identified as the faulty busbar trunking. Its insulation resistance is measured, and if it is less than 200MΩ, it is confirmed as the faulty busbar trunking.

3. The busbar trunking emergency repair method as described in claim 1, characterized in that: In step S2, gaskets are provided between the first connecting copper busbar, the second connecting copper busbar and the busbar connector.

4. The busbar trunking emergency repair method as described in claim 1, characterized in that: In step S3, the spacing between each phase cable or conductor is ≥100mm, and the cable or conductor must not come into contact with the metal casing of the busbar trunking.

5. The busbar trunking emergency repair method as described in claim 4, characterized in that: Insulation measures such as inserting insulating pads or wrapping the metal casing of the busbar trunking with the insulating sheath of high-voltage cables can be used to isolate it.

6. The busbar trunking emergency repair method as described in claim 1, characterized in that: In step S3, an insulating protective sleeve is used to insulate and isolate the fixed position of the wiring terminal.

7. A busbar trunking emergency repair device used in the method of claim 1, characterized in that: The device includes a first connecting copper busbar and a second connecting copper busbar. The first connecting copper busbar and the second connecting copper busbar are inserted into a busbar connector. Both the first connecting copper busbar and the second connecting copper busbar include a connector section, a heat-shrinkable insulation section and a terminal block section connected in sequence. The connector section is connected to the busbar connector. The terminal block section has a connection hole. A terminal block is installed in the connection hole by a fastener. The lower end of the terminal block is connected to a cable. The cable is equipped with a piercing clamp. A wire is connected to the piercing clamp. The wire is connected to the user side to form a temporary power supply circuit.

8. The busbar trunking emergency repair device as described in claim 7, characterized in that: An insulating protective sleeve is connected to the terminal block. The insulating protective sleeve includes a sleeve clamp and a copper busbar connection hole. The copper busbar connection hole is located in the middle of the sleeve clamp. The sleeve clamp includes a sleeve clamp fixing member and a sleeve clamp movable member. One end of the sleeve clamp fixing member is hinged to the sleeve clamp movable member. The sleeve clamp movable member can rotate along the hinge to open or close the insulating protective sleeve.

9. The busbar trunking emergency repair device as described in claim 7, characterized in that: The first connecting copper busbar and the second connecting copper busbar have different lengths, with the second connecting copper busbar being longer than the first connecting copper busbar.

10. The busbar trunking emergency repair device as described in claim 7, characterized in that: The first and second connecting copper busbars are symmetrically arranged at the center of the busbar trunking connector; the heat-shrinkable insulation section is a bent section in the shape of an L.

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