Method for tightening insulated wire of distribution line

Abstract

The invention provides a method for tightening an insulated wire of a distribution line, which comprises the following steps of: pre-tightening the insulated overhead wire by using an insulated strain clamp, enabling the free end of the insulated overhead wire to pass through an insulated strain clamp pull ring from the opening direction of an insulated strain clamp body, and installing an insulated strain clamp core, the opening protruding part of the insulation strain clamp clamping core is fixed through pliers and tightly smashed through a special tool, then the free end of the insulation overhead conductor is bent backwards, the free end of the insulation overhead conductor is fixed to the portion, at the front end of the insulation strain clamp, of the insulation overhead conductor through the binding aluminum wire, and the insulation strain clamp clamping core is fixed through the binding aluminum wire. And finally, the free end of the insulated overhead conductor is bent backwards again and is normally connected to a line or a disconnecting link. According to the method provided by the invention, after the construction of the distribution line is completed, the insulated wire is ensured not to slip off to cause faults such as line grounding and short circuit.

Description

Technical Field

[0001] The invention belongs to the technical field of wedge-shaped wire clamp installation tools for power distribution lines, and in particular relates to a method for tightening insulated wires of power distribution lines. Background Art

[0002] Usually, when installing insulated overhead conductors on distribution lines, the operators are not required to check the gaps on the front and back sides of the insulated tension clamps to ensure that they are consistent after installation. Operators tighten the wires and connect the wires according to the previous operation method for bare conductors. However, the tension clamps for insulated conductors and bare conductors have different clamping methods. There are no bolts to fix the conductors, and hard plastic clamps are used to clamp the conductors. The wedge-shaped structure makes the insulated conductors tighter and tighter. Due to the defects in the design of the tension clamps for insulated conductors of some manufacturers, the hard plastic clamps of the tension clamps are approximately circular on the outside, and the front and back gaps cannot be guaranteed to be consistent in the wedge-shaped structure hole of the tension clamps that are approximately circular. Sometimes only half of the insulated conductor can be clamped, and the conductor is not firmly held. Over time, as the wind blows and the conductors shake, the tension clamps and the conductors will slip, causing the wires to slip or even fall off, posing serious safety hazards.

[0003] After completing the wire tightening operation, the construction will bend the insulated conductor towards the opening direction of the tension clamp. At this time, if the tension clamp does not hold the insulated conductor, the possibility of wire slipping will be increased. Since there are no special regulations, the operators of the insulated conductor tightening construction can only operate according to previous experience, which is prone to wire slipping and falling accidents.

[0004] In summary, the existing technology has design defects and quality problems of insulated tension clamps, and the personnel do not operate carefully during construction, which often leads to the loosening of the line within the span after the overhead insulated wire slips, and even multiple insulated wire falling failures occur, which poses serious safety hazards. Therefore, it is necessary to design a method for tightening the insulated wires of distribution lines, which uses a simple process and does not add additional hardware materials to prevent the insulated tension clamps from not being able to hold the wires, the overhead wires slipping or even sliding off, and the line grounding, short circuit and other failures. Summary of the invention

[0005] The purpose of the present invention is to make up for the shortcomings of the prior art and provide a method for tightening the insulated conductors of a distribution line to solve the problem that the insulating wire clamp cannot hold the insulated conductor and causes the insulating overhead line to slip, effectively prevent the insulating overhead line from sag or even conductor fall-off, and improve the power supply reliability of the distribution line.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A method for tightening an insulated conductor of a power distribution line, using an insulating tension clamp, comprises the following steps:

[0008] Pre-tightening the insulated overhead wire, passing the free end of the insulated overhead wire through the insulating tension clamp pull ring from the opening direction of the insulating tension clamp body;

[0009] Install the insulating tension clamp core, fix the opening protrusion of the insulating tension clamp core with pliers, and tighten it with a special tool;

[0010] The free end of the insulated overhead wire is bent back, and the free end of the insulated overhead wire is fixed to the insulated overhead wire at the front end of the insulated tension clamp by binding aluminum wire;

[0011] Bend the free end of the insulated overhead wire backwards again and connect it normally to the line or switch;

[0012] The insulating tension clamp comprises an insulating tension clamp body, an insulating tension clamp pull ring, an insulating tension clamp core and a binding aluminum wire;

[0013] Both ends of the insulation tension clamp body are provided with pull ring through grooves, and the insulation tension clamp pull ring is threadedly connected to the insulation tension clamp body through the pull ring through grooves;

[0014] The insulating strain clamp core is movably connected to the insulating strain clamp body;

[0015] The binding aluminum wire is used for binding and fixing the insulated overhead wire.

[0016] Furthermore, when the insulating strain clamp core is tightened, the gap in front of the insulating strain clamp core and the gap in the back of the insulating strain clamp core are ensured to be consistent.

[0017] Furthermore, the insulated overhead wire is wrapped around the insulating tension clamp once and then tied and fixed, so as to prevent the insulated overhead wire from sagging or even falling off.

[0018] The embodiments of the present invention bring the following beneficial effects:

[0019] The construction method adopted by the present invention can first require the construction personnel to check the front and rear gaps of the insulating tension clamp's clamp core after installing it, and ensure that the front and rear gaps are consistent, so as to prevent the insulating tension clamp from failing to hold the insulated wire and causing the insulated overhead wire to slip, and then tie and fix the insulated overhead wire after wrapping the insulating tension clamp around it, which can prevent the insulated overhead wire from sag or even wire falling off, thereby improving the power supply reliability of the distribution line. This innovative achievement adopts a convenient construction method and utilizes simple procedures. Without adding additional hardware materials, it can prevent the insulating tension clamp from failing to hold the wire, causing the overhead wire to slip or even slide off, thereby improving the power supply reliability of the distribution line. This insulated wire tightening method is simple and practical, and has strong operability in actual work.

[0020] Other features and advantages of the present invention will be described in the following description, and some features will become apparent from the description or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural diagram of the insulation tension clamp for a power distribution line provided in an embodiment of the present invention;

[0023] Figure 2 A side view of the insulation tension clamp for a power distribution line provided by an embodiment of the present invention;

[0024] Figure 3 A cross-sectional view of an insulation tension clamp for a power distribution line provided in an embodiment of the present invention.

[0025] In the figure, 1-insulation tension clamp pull ring; 2-insulation tension clamp body; 3-insulation overhead conductor; 4-binding aluminum wire; 5-insulation tension clamp core; 6-insulation tension clamp core gap behind; 7-insulation tension clamp core gap in front. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-3 As shown, an embodiment of the present invention provides a method for tightening insulated conductors of a power distribution line, using an insulating tension clamp, the insulating tension clamp comprising an insulating tension clamp pull ring 1, an insulating tension clamp body 2, a binding aluminum wire 4 and an insulating tension clamp core 5;

[0028] The insulating tension clamp body 2 is provided with pull ring through grooves at both ends, and the insulating tension clamp pull ring 1 is threadedly connected to the insulating tension clamp body 2 through the pull ring through grooves;

[0029] The insulating tension clamp core 5 is movably connected to the insulating tension clamp body 2;

[0030] The binding aluminum wires 4 are used to bind and fix the insulated overhead wires.

[0031] In this embodiment, when clamping the insulating tension clamp core 5, it is necessary to ensure that the gap 7 in front of the insulating tension clamp core and the gap 6 in the back of the insulating tension clamp core are consistent, in order to prevent the gap on one side from being larger and the gap on the other side from being smaller, thereby causing the core to fail to hold the wire.

[0032] Specific usage:

[0033] 1. Install the insulated overhead conductor 3, and after pre-tightening, cut the insulated overhead conductor 3 to the required length;

[0034] 2. Pass the free end of the insulated overhead wire 3 through the insulating tension clamp pull ring 1 from the opening direction of the insulating tension clamp body 2;

[0035] 3. Install the insulating tension clamp core 5. At this time, make the overhang and the insulating tension clamp body 2 close to the insulated overhead wire 3. The overhang is used to connect the insulating tension clamp and the cross arm to play an insulating role.

[0036] 4. Fix the opening protrusion of the insulating tension clamp core 5 with pliers, and use special tools to tighten the insulating tension clamp core 5. After completion, the openings of the front slit 7 of the insulating tension clamp core and the rear slit 6 of the insulating tension clamp core should be basically consistent;

[0037] 5. Bend the free end of the insulated overhead conductor 3 back, and use the binding aluminum wire 4 to firmly bind the free end of the insulated overhead conductor 3 and the insulated conductor at the front end of the insulating tension clamp body 2.

[0038] 6. Bend the free end of the insulated overhead conductor 3 backwards again and connect it to the line or switch normally.

[0039] In this embodiment, the insulated overhead wire 3 needs to be wrapped around the insulated tension clamp body 2 once and then tied and fixed to prevent the insulated overhead wire 3 from sagging or even falling off.

[0040] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for tightening the insulated overhead conductor of a power distribution line, using an insulating tension clamp, characterized in that: Includes the following: Pre-tightening the insulated overhead wire, passing the free end of the insulated overhead wire through the insulating tension clamp pull ring from the opening direction of the insulating tension clamp body; Install the insulating tension clamp core, fix the opening protrusion of the insulating tension clamp core with pliers, and tighten it with a special tool; The free end of the insulated overhead wire is bent back, and the free end of the insulated overhead wire is fixed to the insulated overhead wire at the front end of the insulated tension clamp by binding aluminum wire; Bend the free end of the insulated overhead wire backwards again and connect it normally to the line or switch; The insulating tension clamp comprises an insulating tension clamp body, an insulating tension clamp pull ring, an insulating tension clamp core and a binding aluminum wire; Both ends of the insulation tension clamp body are provided with pull ring through grooves, and the insulation tension clamp pull ring is threadedly connected to the insulation tension clamp body through the pull ring through grooves; The insulating strain clamp core is movably connected to the insulating strain clamp body; The binding aluminum wire is used for binding and fixing the insulated overhead wire.

2. The method for tightening the insulated conductor of a power distribution line according to claim 1, characterized in that: When tightening the insulating strain clamp core, ensure that the front gap of the insulating strain clamp core and the rear gap of the insulating strain clamp core remain consistent.

3. The method for tightening the insulated conductor of a power distribution line according to claim 1, characterized in that: The insulated overhead wire is wound around the insulating tension clamp once and then tied and fixed, so as to prevent the insulated overhead wire from sagging or even falling off.

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