XJ seriesCarry type short-circuit grounding wires
The instruction for use
Shanghai SuTe electric Co., LTD
XJ series portable short earthing
I. Overview
1, XJ series portable short-circuit ground wire is the company recently developed a new generation of products. Products meet all the performance indicators are presented SD332-89 "portable short-circuit ground wire technology standards" requirements. Products in the August 10, 2001 security tools by the power and Testing Center of the type testing. Pilot projects are all qualified.
2, XJ series portable short-circuit ground wire from the insulated operating rod, wire clips, short routes, grounding wire, grounding Swiss sub, bus clip, earth clamp and other components, wire holder, earth clamp are made of high quality aluminum alloy die-casting, high strength, and then by the clamp surface surface treatment should not be oxygen. Operating rod with epoxy resin imported refined into color management, good insulation properties, high strength, light weight, bright, smooth appearance, processing skills, is a technology leader in the manufacture of similar products.
3, XJ series portable short-circuit ground wire can be divided into sub-phase grounding, combined-phase ground. Use of different voltage, a single, multi-section rod-type operation. Transformer short-circuit grounding wires are used （level folder）, lines （round clip）.
Second, technical indicators
1, the use of environmental conditions:
（1） Ambient temperature: -25 ℃ ~ 55 ℃
（2） Relative temperature: ≤ 90%
（3） Use: indoor and outdoor weather, no rain
2, the ground operation rod size （Table I）
All sorts of different voltage grade device name Insulation parts length （mm Handshake section length （mm） Total length （mm）
Consumers10KV below electrical equipments According to the work place does not make the rules
Consumers 10KV equipment and transmission line 700 300 100
35KV equipment and transmission line 900 600 1500
63KV equipment and transmission line 1000 600 1600
110 KV equipment and transmission line 1300 700 2000
220 KV equipment and transmission line 2100 900 3000
330 KV equipment and transmission line 3000 1100 4100
500 KV equipment and transmission line 4100 1400 5500
220-500 KV transmission line insulation overhead ground 700 300 1000
Laboratory and testing equipment grounded 700 300 1000
3, grounding operation great mechanical strength （table 2）
Static tension （N） Flexural strength
1470 Grounding operation great working part weight twice
4、Grounding operation great insulating properties （table 3）
The rated operating voltage （KV） Consumers 10KV and below 35 63 110 220 330 500 220-500 Insulation overhead conductors Test equipment
Preventive test voltage （KV） 44 93.5 167 219 438 567 758 44 44
Factory test voltage （KV） 48 102 184 241 482 634 836 48 48
Type test voltage （KV） 53 112 202 265 530 679 920 53 53
Wet test voltage （KV） 40 90 159 210 400 600 — 40 40
3, the XJ portable short-circuit grounding line selection, use and maintenance instructions
1, according to the safety work instruction correct selection of short-circuit ground.strike suspension quantity, the correct choice suspension site, correctly use short-circuit grounding wires.
2, carrying type short-circuit ground.strike choice shall withstand short-circuit current largest suspension of electricity, its rated short-circuit current value is not less than the largest suspension electrical fault current when not remove except reclose, still should consider secondary short-circuit current blunt short-circuit current impacts on short-circuit ground.strike short-circuit current rated influence.
3, short-circuit grounding the length of the line should be suitable for the size of the equipment and fixed ground point distance, its rated short-circuit current squares rated time for product value is not less than the fault current squares fault time the product value. If the ground wire length less than junction distance of 1.2 times, can lead to more serious than type test when the stress too long makes short-circuit at work now too high and ground strongly swinging.
4, according to convenient suspension short-circuit ground.strike requirement and the choice of wire clip model. Grounding operation great choice should be pensile point system and rated voltage is consistent, the suspension short-circuit ground.strike should guarantee the working staff, ground wire and charged equipment maintain necessary safety distance. In the end hanging completed the ground.strike before work of the staff should stay grounded conductor maintain certain safety distance.
5, carrying type short-circuit ground.strike ago, electric power, confirm the experience on equipment without voltage after be conducted. First the grounding clip connection to the ground, and then operated online conductor bar respectively court since clip tightly. In equipment wires dismantling period route ground.strike sequence and appeal instead.
6, erect short-circuit grounding wires, he and charged equipment distance considering the influence of ground wire to swing, the safe distance is not less than safe working procedures prescribed by the numerical.
7, hanging point if no fixed place, can meet the available to temporary grounding electrodes as temporary ground point, grounding rods embedded depth of underground should not be less than 0.6 M.
8, carrying type short-circuit grounding wire should be in air circulation, environmental dry special place deposited, before each use all should carefully check whether its are intact. Find wire clip craze, connection, become loose, security layer damaged. Soft copper bare, should be banned.
9, shall be in compliance with the circuit safety work codes require regular inspection, （check project with ex-factory inspection）
10, after the test qualified carry short-circuit withstand type grounding wires in general should be scrapped short-circuit after treatment.
4, this company specialized designed, development, production, sales circuit safety tools.
Shanghai SuTe electric Co., LTD
ephone:
Zip code: 200443
Url: http://
Address: Shanghai altogether kang road 1018 number
QQ交流