CN203645104U

CN203645104U - Special-purpose grounding wire of low voltage breaker

Info

Publication number: CN203645104U
Application number: CN201320794583.0U
Authority: CN
Inventors: 崔永谦; 孟慧; 张德东; 肖军华; 杜正旺; 杨义志; 马广俊; 李超超
Original assignee: China Petroleum and Chemical Corp; Electric Power Corp of Sinopec Shengli Petroleum Administration Bureau
Current assignee: China Petroleum and Chemical Corp; Electric Power Corp of Sinopec Shengli Petroleum Administration Bureau
Priority date: 2013-12-06
Filing date: 2013-12-06
Publication date: 2014-06-11
Anticipated expiration: 2023-12-06

Abstract

The utility model relates to a power supply protection tool, especially to a special-purpose grounding wire of a low voltage breaker. The technical scheme of the special-purpose grounding wire is that the special-purpose grounding wire comprises a grounding fastening bolt, a grounding soft copper wire, a grounding wire clamp, a conflux clamp, a wire connection terminal, and a magnetic conducting wire end wire clamp, wherein the grounding fastening bolt is fixed on the grounding wire clamp, the grounding wire clamp is connected with the grounding soft copper wire, the grounding soft copper wire is connected with the wire connection terminal, and the magnetic conducting wire end wire clamp is disposed on the wire connection terminal; and the special-purpose grounding wire is beneficial in that the special-purpose grounding wire is adaptable to various electrical devices in a low voltage distribution network, capable of achieving firm and reliable grounding, not limited by usage space, and capable of guaranteeing the safety of workers. The special-purpose grounding wire is light and convenient to carry, simple to mount, and capable of reducing the work intensity of the workers and improving the work efficiency.

Description

Low-voltage circuit breaker Special grounding wire

Technical field

The utility model relates to a kind of power supply protection instrument, particularly a kind of low-voltage circuit breaker Special grounding wire.

Background technology

Earth connection in electric power system, the one, while preventing unexpectedly occurring voltage on the equipment that had a power failure and circuit, the 2nd, by the capacitance voltage reliable ground of the induced voltage on equipment or circuit or cable line, ensure the important tool of electric operating personal security.

Permanent development has been experienced in electric power system, and the earth connection that need to use when grid equipment maintenance is also updating, and type is also varied.Current widely used earth connection is all that contact head and insulating bar, annealed copper wire combine mostly, in use because of the earth connection of the type selecting corresponding contact head of equipment.When transformer station's busbar and high-tension switch cabinet load side ground connection, should select the earth connection of flat mouth type, be connected on the earth connection of hanging earthing conductor use cable clamp type on wire, also should not use the earth connection of special joint when the high-voltage tap case ground connection of on-load switch, or take one group of terminals apart, re-use cable clamp type earth connection.

Distribution upkeep operation object mainly contains copper aluminium bus array, cable line etc. at present, more according to the Special grounding wire pattern of the actual required use in scene, although earth connection kind is more, do not have a kind of be applicable to completely low-voltage circuit in small space quick and easy for installation, contact good earth connection.

Along with the quickening of urban modernization pace of construction, cable proportion in distribution line improves day by day, at present in distribution a large amount of low-voltage tapping box and power distribution cabinet without the direct device of electrical verification and installing earth connection.When various places ubiquity field operations, use copper cash to be wound around ground connection, or simply do not install earth connection, also or use clamp short circuit grounding.The insecure unreliable phenomenon of grounding measures when cable line power cut construction, brings safely great potential safety hazard to work on the spot, and P.P's measure is performed practically no function, and security situation is precarious.

In order better to manage earth connection, reasonably utilize fund, improve power construction job safety, develop a kind of Novel connecting ground wire, can in low-voltage network, adapt to various power equipments, and the solid and reliable ground connection of energy, be the top priority in current distribution work.

Summary of the invention

The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of low-voltage circuit breaker Special grounding wire is provided.

Its technical scheme is: comprise ground connection fastening bolt, ground connection annealed copper wire, earthing clamp, the folder that confluxes, binding post, magnetic conductor wire end wire clamp, dead earth fastening bolt on earthing clamp, described earthing clamp connects ground connection annealed copper wire, described ground connection annealed copper wire connects binding post by the folder that confluxes, binding post is provided with magnetic conductor wire end wire clamp, magnetic conductor wire end wire clamp is columnar structured, and its inside is provided with powerful magnetite.

Above-mentioned earthing clamp and magnetic conductor wire end wire clamp are that aluminum alloy materials is made.

Above-mentioned ground connection annealed copper wire outside is provided with insulating protective layer.

Above-mentioned earthing clamp is provided with clamp groove.

The above-mentioned folder that confluxes is made up of a mobile jib many points of poles in parallel.

Above-mentioned binding post is 3-5.

The beneficial effects of the utility model are: can in low-voltage network, adapt to various power equipments, and the solid and reliable ground connection of energy, not limited by usage space, ensure operating personnel's safety.This Novel connecting ground wire carrying portable, install simple and easyly, reduced staff's labour intensity, improved operating efficiency.

Brief description of the drawings

Accompanying drawing 1 is structural representation of the present utility model;

Accompanying drawing 2 is earthing clamp structural representations;

Accompanying drawing 3 is magnetic conductor wire end cable clamp structure schematic diagrames;

In upper figure: ground connection fastening bolt (1), ground connection annealed copper wire (2), earthing clamp (3), the folder (4) that confluxes, binding post (5), magnetic conductor wire end wire clamp (6), clamp groove (7).

Embodiment

By reference to the accompanying drawings, the utility model will be further described:

The utility model comprises ground connection fastening bolt 1, ground connection annealed copper wire 2, earthing clamp 3, binding post 5, magnetic conductor wire end wire clamp 6, dead earth fastening bolt 1 on earthing clamp 3, described earthing clamp 3 connects ground connection annealed copper wire 2, described ground connection annealed copper wire 2 connects binding post 5 by the folder 4 that confluxes, binding post 5 is provided with magnetic conductor wire end wire clamp 6, magnetic conductor wire end wire clamp 6 is columnar structured, and its inside is provided with powerful magnetite.

Above-mentioned earthing clamp 3 and magnetic conductor wire end wire clamp 6 are made for aluminum alloy materials.

Above-mentioned ground connection annealed copper wire 2 outsides are provided with insulating protective layer.

Above-mentioned earthing clamp 3 is provided with clamp groove 7.

The above-mentioned folder 4 that confluxes is made up of a mobile jib many points of poles in parallel, and many points of poles collect in a mobile jib.

Above-mentioned binding post 5 is 3-5, and magnetic conductor wire end wire clamp (6) is columnar structured, and its inside is provided with powerful magnetite.

Using method of the present utility model is:

(1) when hanging earthing conductor: rotation ground connection fastening bolt (1), make earthing clamp (3) open card on earth electrode, card on after reverse rotation ground connection fastening bolt (1), earthing clamp (3) is contacted with earth electrode well, connection reliably.Magnetic conductor wire end wire clamp (6) is firmly adsorbed in power failure equipments by the powerful magnetite of its inside; Remove when earth connection, must first tear magnetic conductor wire end wire clamp (6) open by follow procedure, after disconnect ground electricity and press from both sides (3).

(2) examine the electric pressure of earth connection and whether the electric pressure of operating equipment is consistent.

Claims

1. a low-voltage circuit breaker Special grounding wire, it is characterized in that: comprise ground connection fastening bolt (1), ground connection annealed copper wire (2), earthing clamp (3), binding post (5), magnetic conductor wire end wire clamp (6), the upper dead earth fastening bolt (1) of earthing clamp (3), described earthing clamp (3) connects ground connection annealed copper wire (2), described ground connection annealed copper wire (2) connects binding post (5) by the folder (4) that confluxes, binding post (5) is provided with magnetic conductor wire end wire clamp (6), magnetic conductor wire end wire clamp (6) is columnar structured, its inside is provided with powerful magnetite.

2. low-voltage circuit breaker Special grounding wire according to claim 1, is characterized in that: described earthing clamp (3) and magnetic conductor wire end wire clamp (6) are made for aluminum alloy materials.

3. low-voltage circuit breaker Special grounding wire according to claim 1, is characterized in that: described ground connection annealed copper wire (2) outside is provided with insulating protective layer.

4. low-voltage circuit breaker Special grounding wire according to claim 1, is characterized in that: described earthing clamp (3) is provided with clamp groove (7).

5. low-voltage circuit breaker Special grounding wire according to claim 1, is characterized in that: described the passing through folder (4) that confluxes is made up of mobile jib many points of poles in parallel.

6. low-voltage circuit breaker Special grounding wire according to claim 1, is characterized in that: described binding post (5) is 3-5.