CN201430370Y

CN201430370Y - Structure of temporary earth terminal box for equipment maintenance

Info

Publication number: CN201430370Y
Application number: CN2009200961569U
Authority: CN
Inventors: 刘光武
Original assignee: TIANJIN ELECTRIC POWER CONSTRUCTION Co
Current assignee: CHINA ENERGY ENGINEERING GROUP TIANJIN ELECTRIC POWER CONSTRUCTION CO., LTD.
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2010-03-24
Anticipated expiration: 2019-04-03

Abstract

A structure of a temporary earth terminal box for equipment maintenance comprises a box body embedded in a wall body. A penetrating hole for an earth terminal is formed in the center of the back surface of the box body; the earth terminal is led out via an earth main line and is arranged in the box body through the penetrating hole; mounting holes are formed on the earth terminal, in which earth bolts and nuts are mounted; a box cover is arranged on the box body; and a box cover opening handle is arranged on the box cover. The temporary earth terminal box for equipment maintenance can be processed by PVC material or thin steel plates; as a novel form, a novel method and a novel technology of the earth terminal, the utility model aims to improve the level of construction technology and theintegral aesthetic effect of indoor environment; and the novel technology has the advantages of low cost, mature technique, simple and convenient operation, easy construction and simple maintenance, and has great application potential and popularization prospect in the future.

Description

Temporary grounding terminal board structure when being used for overhaul of the equipments

[technical field]:

The utility model belongs to electric device installing engineering earthing device construction field, particularly overhaul of the equipments temporary grounding.

[background technology]:

In power plant, transformer station and other building, installing engineering, all comprise electrical power distribution chamber or some workshops of various electric pressures, at these indoor some overhauls of the equipments temporary grounding terminals of all will installing, and it reliably is connected with the ground connection main line.In the construction of indoor erection unit maintenance temporary grounding terminal, often adopt as

Form or the form of other bright dresses, be installed on four jiaos of power distribution stations or the midfellow, make indoor overall look and feel effect attractive in appearance inadequately.

[utility model content]: the utility model purpose is the inaesthetic problem that is provided with that overcomes existing earth terminal, and a kind of temporary grounding terminal board when being used for overhaul of the equipments is provided.

This earth terminal box its objective is and improves the construction technology level as a kind of new model, new method, new technology of earth terminal, improves indoor environment overall aesthetic effect.

The temporary grounding terminal board structure that the utility model provides when being used for overhaul of the equipments, comprise a box body that is embedded in the body of wall, center, box body back has an earth terminal and penetrates the hole, earth terminal is drawn by the ground connection main line, penetrate the hole through earth terminal and place in the box body, have installing hole on the earth terminal, earth stud and nut are installed, box body is provided with lid, and lid is provided with lid and opens handle.

Earth terminal and ground connection main line are one, and the ground connection main line adopts 40mm * 4mm zinc-coated flat steel sheet and puts at civil engineering secondary below ground concealed wiring.This earth terminal box centre-to-centre spacing ground 300mm, lid is concordant with metope.The whole brushing white of lid paint, center spray black paint ground connection sign.

Advantage of the present utility model and good effect:

The utility model acts on the theory of founding the elaboration engineering, is strict with, makes unceasing progress, and has the courage to bring forth new ideas, and carries out technological improvement and technological innovation energetically, and former construction technology has been carried out bold improvement and innovation.

The utility model overhaul of the equipments temporary grounding terminal board can adopt PVC material or sheet metal, processes.As a kind of new model, new method, new technology of earth terminal, its objective is and improve the construction technology level, improve indoor environment overall aesthetic effect.And this new technology is with low cost, technology maturation, easy and simple to handle, construction easily, safeguard simply, necessarily have later very big application potential and promotion prospect.This earth terminal box also has the following advantages in addition:

The functional requirement of temporary grounding when 1, satisfying repair apparatus;

2, the more above-mentioned traditional form of this terminal board has been saved the copper bus-bar material, has reduced departmental cost;

3, be installed in indoorly, its height and socket box be with high, and concordant with metope, and whole impression effect is relatively good;

4, processing technology is simple, and is easy to implement.

[description of drawings]:

Fig. 1 earth terminal box embeds schematic diagram in the wall

Fig. 2 earth terminal box positive identification schematic diagram

Inspection earthing terminal scheme of installation in Fig. 3 box;

Fig. 4 binding post installation and processing schematic diagram, Fig. 4 (a) is a vertical view, Fig. 4 (b) is an end view;

Indoor inspection earthing terminal bolt of Fig. 5 and supporting wing nut assembly.

Among the figure, 1 earth terminal box box body, 2 metopes, 3 lids, 4 open handle, 5 building secondary ground, 6 ground connection main lines, the thick ground of 7 buildings, 8 ground connection sign, 9 earth terminals, 10 galvanized bolts, 11 wing nuts, 12 pads, 13 galvanized washers, 14 spring washers.

[embodiment]:

Below to adopt sheet metal to be processed as example:

Processing some specifications in advance (can be the PVC material that wall thickness is not less than 2mm for the square earth terminal box body 1 of long 120mm, wide 120mm, thick 65mm, also can adopt the steel plate processing box body of 0.75mm), with the 1mm steel plate as lid 3, the unlatching handle 4 of a 5mm circle cap bolt as lid installed in the lid bottom, flexible connection (as hinged) is processed on lid and box body top, and lid can start from bottom to top.The whole brushing white of box body and lid paint, lid center spray black paint ground connection sign 8 (as Fig. 2), center, box body back is laterally offered earth terminal and is penetrated the hole, is of a size of the oblong aperture of 25mm * 60mm, in order to penetrate earth terminal.

Be to be laid on ground of civil engineering (the thick ground 7 of civil engineering) when indoor ground connection main line 6 (zinc-coated flat steel sheet) adopts dark application mode, before finishing, secondary ground 5 need draw the earth terminal 9 that has connect equipment needed thereby ground connection and maintenance, if earth terminal is when adopting concealed installation, at first on body of wall, pick out the groove that earth terminal and earth terminal box are installed, earth terminal is processed back being drawn by ground connection main line 6 as shown in Figure 1 and Figure 4 receive (employing 40 * 4 band steels) in the body of wall, earth terminal box body 1 is installed and is made binding post partly penetrate in the box body, connector cover and final metope 2 concordant substantially (mounting means is with the light socket box), setting height(from bottom) (center absolute altitude) is 300mm, and all maintenance terminal boards should be consistent with the socket box setting height(from bottom) in the room.Earth terminal band steel head has installing hole, be used to install the open butterfly check bolt 10 in M8～M10 * 30 (as Fig. 3, shown in Figure 5, also can weld in advance, see pad 12 among the figure), supporting zinc-plated plain washer 13 and spring washer 14, terminal board installation, centering and fixing after, need quadric-plastering, lid external coating white primer black ground connection sign (see figure 2), the 5mm bolt of two nuts clampings of a usefulness is installed in the punching of lid bottom is opened handle 4 as lid, in order to flip, lid top and box body are installed hinge or are processed into flexible connection.When needing the use and maintenance terminal, lid is opened the connection earth terminal, build lid after finishing using and get final product.

This terminal board is embedded to be fixed on the indoor wall, and box centre-to-centre spacing ground elevation is 300mm, and lid is concordant with metope, and particular location and installation quantity are generally by designing requirement.

Illustrate:

1, needs the place of temporary grounding at breaker chamber, power distribution station, bus section place, generator lead-out wire etc., should introduce the ground connection main line, and should be equiped with terminal block and the bolt (maintenance earth terminal) of specializing in the use of connection temporary ground wire.

2, the temporary grounding terminal adopts half light hexagon-headed bolt, open wing nut 11 and spring washer group.It is welded securely (also can not welding) and when carrying out service work, need the place of temporary grounding.Weld around the bolt head, welding and assembling height is not less than 4mm.

3, all being equiped be marked with black after maintenance is answered white color bottom paint with temporary grounding terminal place

Grounding tag.

Claims

1, a kind of temporary grounding terminal board structure when being used for overhaul of the equipments, it is characterized in that this earth terminal box comprises a box body that is embedded in the body of wall, center, box body back has an earth terminal and penetrates the hole, earth terminal is drawn by the ground connection main line, penetrate the hole through the earth terminal box and place in the box body, have installing hole on the earth terminal, earth stud and nut are installed, box body is provided with lid, and lid is provided with lid and opens handle.

2, earth terminal box structure according to claim 1 is characterized in that earth terminal and ground connection main line are one, and the ground connection main line adopts 40mm * 4mm zinc-coated flat steel sheet and puts at civil engineering secondary below ground concealed wiring.

3, earth terminal box structure according to claim 1 and 2 is characterized in that, this earth terminal box centre-to-centre spacing ground 300mm, and lid is concordant with metope.