Tool for fixing 10kV insulated conductors

Abstract

The invention relates to a special method or equipment for installing, maintaining, repairing or dismantling electric cables or electric wires, in particular to a tool for fixing 10kV insulated conductors. The tool for fixing the 10kV insulated conductors is characterized by comprising a main clamp arm, an auxiliary clamp arm, a clamp jaw, a transmission bar and an offsetting spring; the clamp jaw comprises a fixing part and a movable part which are hinged with each other and are respectively installed at the front end of the main clamp arm and the front end of the auxiliary clamp arm; a long-shaped groove is arranged at the internal side of the main clamp arm; a position-limiting member is installed in the long-shaped groove; one end of the transmission bar is fixedly connected onto the auxiliary clamp arm; and the other end of the transmission bar is a movable end which is positioned in the groove of the main clamp arm, can slide in the groove by taking the long groove as a guide rail and supports against the position-limiting member. By fixing the insulated conductors and using a wire-stripping tool in a coordination manner, the tool for fixing the 10kV insulated conductors has the advantages that: the problem of swinging caused by the distortion and energy storage of the conductors is solved; and the insulation layers are easy to strip off, and the discontinuous wire-stripping or the repeated wire-stripping is not needed, so that the time for stripping is reduced, the working efficiency is greatly enhanced, and the potential safety hazards of wires are prevented or reduced.

Description

technical field [0001] The invention relates to a method or equipment specially used for installing, maintaining, repairing or dismantling cables or wires, especially a 10kV insulated wire fixing tool. Background technique [0002] The work of 10kV live lap power supply must be carried out after the insulation of the insulated wire is stripped. However, the insulation layer of the 10kV insulated wire that has been operated often has the phenomenon of aging (hardening) of the insulation layer. During the process, the wire is easily twisted with the stripper, which causes the following problems: [0003] 1. When the insulation layer is twisted with the wire stripper, the wires store energy, and the wires swing too much when they are released, resulting in a phase-to-phase and phase-to-ground distance of less than 0.6 and 0.4 meters specified by the safety regulations, and may cause loosening of the adjacent tower connection parts. Heat, and even loosen and break the aging tie...

AI Technical Summary

Problems solved by technology

[0003] 1. When the insulation layer is twisted with the wire stripper, the wires store energy, and the wires swing too much when they are released, resulting in a phase-to-phase and phase-to-ground distance of less than 0.6 and 0.4 meters specified by the safety regulations, and may cause loosening of the adjacent tower connection parts. Fever, and even loosen and break the aging tie wire on the needle bottle, which will eventually lead to serious consequences of wire falling off and short circuit

[0004] 2. The insulating layer cannot be stripped completely or intermittently, resulting in low work rate, waste of working hours, easy to cause fatigue of operators, and endanger personal safety

Since live work is a high-risk special operation, the operator is required to operate in a good mental state. When the wire insulation layer is stripped for too long, especially in summer high temperature weather, it is easy to make the electrician in the bucket weak and unconscious. Laxity, heatstroke, collapse and other phenomena that endanger personal safety

[0005] 3. Repeated stripping will easily damage the wire stripper and damage the wire

According to the statistical table of the stripping of the insulation layer of the working wire of the 10kV distribution network live lap power supply within the set time and designated area, the probability of power outage due to stripping failure is 3.6%, and the wire swing and stripping caused by the stripping are 3.6%. Different degrees of potential safety hazards caused by repeated stripping caused by inexhaustible stripping and prolonged stripping time are as high as 39%.

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