CN203056528U - Anti-short circuit, anti-miswiring insulated wire sleeve - Google Patents

Abstract

An anti-short circuit and anti-miswiring insulated wire sleeve, which is an insulated wire sleeve made of polyvinyl chloride. The insulated wire sleeve is conical and can be inserted into a 10㎜ ² -1.5㎜ ² wire; insulated wire There are phase plates painted in different colors at the cone head of the sleeve, and the phase marks, voltage and current lines are marked on the phase plates. When removing the secondary equipment wiring, when removing the voltage of different phases of the equipment, cover the wire ends with voltage insulating sleeves representing different phases; when removing the current wires of different phases, use the current insulating sleeves representing different phases It can also cover some communication wires to prevent the communication wires from contacting the strong current wire ends. The utility model has the advantages of simple structure and convenient operation; when replacing the secondary equipment, especially when disassembling and replacing the meter, every time a phase wire is removed, it is covered with a wire sleeve of a different phase, which represents a different phase. In this way, when the meter is disassembled and replaced, it not only prevents phase-to-phase and phase-to-ground short circuits, but also clearly distinguishes each phase to prevent wrong wiring.

Description

Anti-short circuit, anti-miswiring insulated wire sleeve

technical field

The utility model relates to an insulating bushing for marking different phases, in particular to an insulating bushing for carrying out live disassembly and assembly of meters in power lines to prevent short-circuiting of wires and wrong connection of phase sequences.

Background technique

At present, in the power system, whether it is the assembly and disassembly of electric energy meters in power plants, substations (stations), and large users, in order to improve the reliability of power supply, live operation is required. In order to prevent short circuits between wires, it is necessary The method of wrapping with insulating twisted cloth. However, this traditional method has the following problems: 1. Every time a wire is removed, it must be wound with insulating twisted cloth, but it is difficult to distinguish the phases of voltage and current, and it is easy to have wrong wiring when connecting the meter; 2. 2. When installing the watch, it is necessary to wind the insulating twisted cloth one by one, which increases the time for the staff to work live. Because of the existence of above-mentioned two reasons, bring very big trouble to electric worker. the

Contents of the invention

The purpose of this utility model is to provide a short-circuit-proof and mis-wiring-proof insulated wire bushing, which can prevent phase-to-phase short-circuit and ground-to-ground short-circuit conveniently and simply, and can distinguish the voltage and current wire ends of each phase to avoid wrong wiring. .

The technical solution adopted to realize the purpose of this utility model is: it is an insulated wire sleeve made of polyvinyl chloride, the insulated wire sleeve is conical, and can be inserted into a 10㎜ ² -1.5㎜ ² wire; the insulated wire sleeve There are phase plates painted with different colors at the cone head on the outside of the cylinder, and the phase plates, voltage and current lines are respectively marked on the phase plates.

The positive effect of the utility model is: the structure is very simple, and the operation is convenient; when replacing the secondary equipment, especially when disassembling and changing the meter, every time a phase wire is removed, it is covered with a wire sleeve of a different phase, representing In this way, when the meter is disassembled and replaced, it not only prevents phase-to-phase and phase-to-ground short circuits, but also clearly distinguishes each phase to prevent wrong wiring.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the utility model.

Detailed ways

The utility model is shown in Figure 1. It is ^an insulated wire sleeve 1 made of polyvinyl chloride. The insulated wire sleeve 1 is conical and can be inserted into a ^10mm2-1.5mm2 wire; the insulated wire sleeve 1 There are phase signs 2 painted in different colors at the outer cone head, and the phase signs 2 can be marked with phase difference, voltage and current respectively.

The usage method of the utility model is: when dismantling the wiring of the secondary equipment, when dismantling the voltage of different phases of the equipment, use the voltage insulating bushing representing different phases to cover the wire ends; when dismantling the current wires of different phases, use The current insulation sleeves representing different phases cover the wire ends; it can also cover some communication wire ends to prevent the communication wires from contacting the strong current wire ends. It not only prevents interphase short circuit of various wires, but also prevents wrong connection of wires when replacing.

Claims (1)

1. A short-circuit-proof and mis-wiring-proof insulated wire sleeve, which is characterized in that it is an insulated wire sleeve made of polyvinyl chloride, and the insulated wire sleeve is conical and can be inserted into a 10㎜ ² —1.5 ㎜ ² wires; the outer taper of the insulated wire sleeve is a phase plate coated with different colors, and the phase plate is marked with phase difference, voltage and current lines.