CN201398034Y

CN201398034Y - Electroscopy grounding device

Info

Publication number: CN201398034Y
Application number: CN2009201515974U
Authority: CN
Inventors: 李鹏
Original assignee: 李鹏
Current assignee: Binzhou Deep Blue Electric Power Technology Co., Ltd.
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2010-02-03
Anticipated expiration: 2019-04-30

Abstract

An electroscopy grounding device comprises a lightening post isolator, and an electroscopy grounding hook which is semi-closed, fixed and electrically connected to a wire clamp base of the lighteningpost isolator. The electroscopy grounding device integrates the lightening post isolator and electroscopy grounding hook to be faster mounted with the lightening post isolator, reduces a point for peeling the isolating layer to reduce the moisture entering in the insulating wire, saves the materials by the semi-closed structure to help the assembly of grounding wire, and provides a guarantee against rust with long-term exposure in the air by the stainless steel material of the electroscopy grounding hook.

Description

A kind of electrical verification earthing device

Technical field

The utility model relates to a kind of electrical verification earthing device, relates to the electrical verification earthing device on a kind of 10KV suspended insulated guide wire specifically.

Background technology

On power circuit, may or often circuit be overhauled as required.

For the safety that guarantees that the maintainer works on the line, preventing to send a telegram here suddenly at the two ends of job site (may be thunder and lightning, operation error, user's generator sends), electric power safety rules regulation must be in the electrical verification of the two ends of job site, really know that circuit does not have, hang two earth connections then, there is hook the earth connection upper end, what be connected with hook is an insulating bar, grasp when being used to install earth connection and the safe distance of maintenance and lead, draw a cross section in the end with bolt and be not less than 25 square millimeters braiding copper cash, be used to hang over guide current on the exposed lead, the braiding copper cash is connected with the ground connection drill rod, and the ground connection drill rod is squeezed into the earth, when send a telegram here suddenly in the job site two ends, electric current is introduced underground by earth connection and ground connection drill rod, thereby has guaranteed maintainer's safety.

Above said is the situation of nuditing wire, and on the 10KV distribution line, major part has adopted insulated conductor, and promptly exposed electric wire outside has increased one deck insulated hull, is used to prevent that branch or other foreign matters from riding over causes short circuit on the lead.

Insulated hull has been arranged, and earth connection can't directly contact with conductor, directly contact two kinds of methods:

One with the insulated hull strip off, hangs up earth connection, and shortcoming is that can to cause when raining moisture to enter lead along the strip off position inner and in diffusion inside, causes ageing of insulation, has a strong impact on useful life, so can not adopt.

Its two, as shown in Figure 1, insulated hull is punctured by penetrating cable clamp, contact with lead.This is present most common form, this electrical verification earthing device has an exposed position, being used for using before hanging earthing conductor electroscope to identify circuit does not herein have really, and then installing earth connection, again because of structure ringwise, so be called electricity testing grounding ring 1, there is an insulation protective hood outside usually, is used to prevent that rainwater from entering.

But the defective of the electroscopic device of the mode of this present the most frequently used puncture is: 1, puncture once when lightning protection pillar insulator 2 is installed, when being installed, electroscopic device also to puncture once, repeatedly puncture possibility damage wires, and for a long time in service to cause moisture to enter lead inner and in diffusion inside, cause ageing of insulation, have a strong impact on useful life (China's patent 200710042031.3 lightning protection pillar insulators have detailed description to this).2, electroscopic device will be made separately, does not save material.3, electroscopic device will will be installed separately separately, and operation is wasted time and energy.

Summary of the invention

The purpose of this utility model provides simple structure, laborsaving, safe and reliable, the economical and practical electrical verification earthing device of simple operation.

For realizing above-mentioned purpose, the technical scheme that the utility model adopted is: a kind of electrical verification earthing device, comprise: lightning protection pillar insulator, electrical verification ground connection hook, described electrical verification ground connection hook are semi-closed structure and fix, are connected electrically on the wire clamp seat of described lightning protection pillar insulator;

Described lightning protection pillar insulator, comprise: the end, is along the blow-by insulating shield, be arranged at the wire clamp seat that constitutes by upper holder block and lower lock block of described insulating shield inside, side opening by described wire clamp seat is attached thereto the preventing arc rod that connects, the insulator part that two ends link to each other with cross-arm with the lower end of described wire clamp seat respectively, be arranged in the described insulator part near the following steel pin of cross-arm one end and the metal cap that links to each other with described steel pin down, the upper end of described metal cap is provided with a metal elongated protrusion, connect an eye-catching plastic components on the described projection, described insulator part outer surface has the alternate full skirt of size.

Described electrical verification ground connection hook can seal.

Described electrical verification ground connection hook can be by on the wire clamp seat that is bolted to described lightning protection pillar insulator.

Described electrical verification ground connection hook can be cast in the upper holder block or the lower lock block of wire clamp seat.

Described electrical verification ground connection hook adopts stainless steel material.

The beneficial effects of the utility model are: the utility model combines electrical verification ground connection hook and lightning protection pillar insulator together, installs with lightning protection pillar insulator, and is more quick; Reduce the point of a stripping of insulatin skin, reduced the chance that moisture enters insulated conductor; Save material, be semi-closed structure, be beneficial to the earth connection installing more; Electrical verification ground connection hook adopts stainless steel material, exposes non-corrosive in air for a long time.

Description of drawings

Fig. 1 is this prior art constructions schematic diagram.

The structural representation that Fig. 2 provides for the utility model.

Electricity testing grounding ring-1, lightning protection pillar insulator-2, wire clamp seat-3, electrical verification ground connection hook--4, insulator part-5, following steel pin-6, metal cap-7, projection-8, plastic components-9, preventing arc rod-10, full skirt-11, bolt-12

Embodiment

In conjunction with the accompanying drawings 1,2, a kind of electrical verification earthing device that the utility model is provided is elaborated.

As shown in Figure 1, 2, a kind of electrical verification earthing device comprises: lightning protection pillar insulator 2, and electrical verification ground connection hook 4, described electrical verification ground connection hook 4 are semi-closed structure and fix, are connected electrically on the wire clamp seat 3 of described lightning protection pillar insulator 2;

Described lightning protection pillar insulator 2 comprises: the end, is along the blow-by insulating shield, be arranged at the wire clamp seat 3 that constitutes by upper holder block and lower lock block of described insulating shield inside, side opening by described wire clamp seat is attached thereto the preventing arc rod 10 that connects, the insulator part 5 that two ends link to each other with cross-arm with the lower end of described wire clamp seat respectively, be arranged in the described insulator part 5 near the following steel pin 6 of cross-arm one end and the metal cap 7 that links to each other with described steel pin 6 down, the upper end of described metal cap 7 is provided with a metal elongated protrusion 8, connect an eye-catching plastic components 9 on the described projection, described insulator part outer surface has the alternate full skirt 11 of size.

As improvement of the present utility model, described electrical verification ground connection hook 4 seals.

As improvement of the present utility model, described electrical verification ground connection hook 4 is fixed on by bolt 12 on the wire clamp seat 3 of described lightning protection pillar insulator 2, also can be cast in the upper holder block or the lower lock block of wire clamp seat 3.

Described electrical verification ground connection hook 4 adopts stainless steel material, exposes non-corrosive in air for a long time.

When circuit is overhauled, for the safety that guarantees that the maintainer works on the line, preventing to send a telegram here suddenly at the two ends of job site (may be thunder and lightning, operation error, user's generator sends), electric power safety rules regulation must be in the electrical verification of the two ends of job site, really know that circuit does not have, hang two earth connections then, there is hook the earth connection upper end, what be connected with hook is an insulating bar, grasp when being used to install earth connection and the safe distance of maintenance and lead, draw a cross section in the end with bolt and be not less than 25 square millimeters braiding copper cash, be used to hang over guide current on the electrical verification ground connection hook 4, the braiding copper cash is connected with the ground connection drill rod, and the ground connection drill rod is squeezed into the earth.

When send a telegram here suddenly in the job site two ends, electric current is introduced underground by electrical verification ground connection hook 4, earth connection and ground connection drill rod, thereby has guaranteed maintainer's safety, reaches the purpose that the utility model provides.

Claims

1, a kind of electrical verification earthing device comprises: lightning protection pillar insulator, electrical verification ground connection hook is characterized in that: described electrical verification ground connection hook is semi-closed structure and fixes, is connected electrically on the wire clamp seat of described lightning protection pillar insulator.

2, a kind of electrical verification earthing device as claimed in claim 1, it is characterized in that: described lightning protection pillar insulator comprises: the end, is along the blow-by insulating shield, be arranged at the wire clamp seat that constitutes by upper holder block and lower lock block of described insulating shield inside, side opening by described wire clamp seat is attached thereto the preventing arc rod that connects, the insulator part that two ends link to each other with cross-arm with the lower end of described wire clamp seat respectively, be arranged in the described insulator part near the following steel pin of cross-arm one end and the metal cap that links to each other with described steel pin down, the upper end of described metal cap is provided with a metal elongated protrusion, connect an eye-catching plastic components on the described projection, described insulator part outer surface has the alternate full skirt of size.

3, a kind of electrical verification earthing device as claimed in claim 1 or 2 is characterized in that: described electrical verification ground connection hook seals.

4, a kind of electrical verification earthing device as claimed in claim 1 or 2 is characterized in that: described electrical verification ground connection hook by bolt, be connected electrically on the wire clamp seat of described lightning protection pillar insulator.

5, a kind of electrical verification earthing device as claimed in claim 1 or 2 is characterized in that: described electrical verification ground connection hook is cast in the upper holder block or the lower lock block of wire clamp seat.

6, a kind of electrical verification earthing device as claimed in claim 3 is characterized in that: described electrical verification ground connection hook is by on the wire clamp seat that is bolted to described lightning protection pillar insulator.

7, a kind of electrical verification earthing device as claimed in claim 3 is characterized in that: described electrical verification ground connection hook is cast in the upper holder block or the lower lock block of wire clamp seat.

8, a kind of electrical verification earthing device as claimed in claim 1 or 2 is characterized in that: described electrical verification ground connection hook adopts stainless steel material.

9, a kind of electrical verification earthing device as claimed in claim 3 is characterized in that: described electrical verification ground connection hook adopts stainless steel material.

10, a kind of electrical verification earthing device as claimed in claim 4 is characterized in that: described electrical verification ground connection hook adopts stainless steel material.