CN201717589U

CN201717589U - Square grounding device for power pole tower

Info

Publication number: CN201717589U
Application number: CN2010201651721U
Authority: CN
Inventors: 林宜伟; 王建升; 胡鑫; 王强; 侯元良; 段江涛
Original assignee: SANMENXIA ELECTRIC POWER DESIGN CO Ltd
Current assignee: SANMENXIA ELECTRIC POWER DESIGN CO Ltd
Priority date: 2010-04-21
Filing date: 2010-04-21
Publication date: 2011-01-19
Anticipated expiration: 2020-04-21

Abstract

The utility model relates to a square grounding device for a power pole tower, which comprises the power pole tower. A grounding grid is distributed at the lower end of the power pole tower, a grounding pole is arranged at the corner of the grounding grid, and the power pole tower is connected with the grounding pole by a grounding downlead. In the utility model, the grounding pole is laid downwards, and a grounding lead does not need to extend to the periphery along the bottom surface, thus reducing the occupying area of the grounding device, saving construction compensation cost, lowering construction cost, and conforming to the requirement of the national grid on a power line with energy-saving and environment-friendly building.

Description

Electric force pole tower square earthing device

Technical field

The utility model relates to a kind of power circuit thunder proof protection ground pattern, specifically relates to a kind of electric force pole tower ground network pattern that is applied to open-air open area.

Background technology

As depicted in figs. 1 and 2, existing power tower grounding net 4 is a square, and four jiaos add radial ground connection radiation 6; Look the soil resistivity difference, the length of ground connection radiation 6 is between 10～50 meters, this is fine the few or opening for industrial crops on every side, and floor space is big, the damages problem of higher but, the difficult area of passage more for trees or industrial crops on every side exists

The utility model content

The technical problems to be solved in the utility model is that electric force pole tower ground network floor space is big, construction damages height, provides a kind of floor space little, the square earthing device of the low electric force pole tower of damages of constructing.

The technical solution of the utility model realizes in the following manner:

The square earthing device of a kind of electric force pole tower comprises electric force pole tower, and the electric force pole tower lower end is furnished with ground network, and ground network corner is provided with earth electrode, links to each other by down conductor between electric force pole tower and the earth electrode.

Described ground network is rectangle.

Preferred version one above-mentioned electric force pole tower is the two bars of cement.

Preferred version two above-mentioned electric force pole towers are iron towers.

Earth electrode of the present utility model lays downwards, and do not need along the bottom surface to around extend ground lead, just reduced the floor space of earthing device, saved the blue or green expense of accompanying, reduced project cost, met national grid power circuit " resource-conserving, environmentally friendly " requirements on Construction.

Description of drawings

Fig. 1 is a prior art electric force pole tower ground network schematic diagram;

Fig. 2 is the schematic top plan view of Fig. 1;

Fig. 3 is the structural representation of the utility model embodiment 1;

Fig. 4 is the schematic top plan view of Fig. 3;

Fig. 5 is the structural representation of the utility model embodiment 2;

Fig. 6 is the schematic top plan view of Fig. 5.

Embodiment

Embodiment 1

Shown in Fig. 3～4, the utility model comprises the two bars 2 of cement, and two bar 2 lower ends of cement are furnished with ground network 4, and ground network 4 is in the bottom surface below 7.Described ground network 4 is rectangles, and ground network is provided with earth electrode 5 for 4 four jiaos, links to each other by down conductor 3 between two bars 2 of cement and the earth electrode 5.

The utility model is to locate each four jiaos of ground network 4 Intranets to make a call to an earth electrode 5 (2～3 meters) downwards; Ground network 4 is connected to the two bars 2 of cement by down conductor 3.Ground network 4 adopts round steel; Earth electrode 5 adopts angle steel, according to the soil resistivity difference, can change earth electrode into earthing module; Down conductor 3 adopts zinc-plated round steel.

The utility model adopts the mode of laying earth electrode 5 downwards, does not need radiation, has just reduced the floor space of earthing device, has saved greatly and has accompanied blue or green expense, has reduced project cost, meets national policy.

Embodiment 2

Shown in Fig. 5～6, the utility model comprises iron tower 1, and iron tower 1 lower end is furnished with ground network 4, and described ground network 4 is rectangles, and ground network is provided with earth electrode 5 for 4 four jiaos, links to each other by down conductor 3 between iron tower 1 and the earth electrode 5.Other is with embodiment 1.

Claims

1. square earthing device of electric force pole tower, comprise electric force pole tower, the electric force pole tower lower end is furnished with ground network (4), it is characterized in that: ground network (4) turning is provided with earth electrode (5), links to each other by down conductor (3) between electric force pole tower and the earth electrode (5).

2. the square earthing device of electric force pole tower according to claim 1 is characterized in that: described ground network (4) is rectangle.

3. the square earthing device of electric force pole tower according to claim 2 is characterized in that: described electric force pole tower is the two bars (2) of cement.

4. the square earthing device of electric force pole tower according to claim 2 is characterized in that: described electric force pole tower is iron tower (1).