Product Name: Ground
1, nickname: the low ground, 380V ground, indoor ground, low pressure flat ground, a grounding wire
2, ground classification: low-voltage grounding wire (using grounding, grounding wire 380V, 500V grounding, grounding wire 6KV, hand-held ground substation grounding wire (10KV) high ground, 35KV ground, 110KV ground, 220KV ground, 500KV ground wire, flat spiral grounding line the grounding wire, line type, outdoor ground, throat type ground wire, a grounding wire) contact network grounding, grounding, contact rail lines with a grounding wire.
3, a grounding wire from the insulation operating rod: [] (the operating rod material selection of quality glass fiber reinforced epoxy resin bar the best production, wire clip has a flat spiral hook, double hook, hook, throat. Each of the high and low voltage general indoor with 3 and 4 root, outdoor high voltage for the general three root. No voltage levels of selected operating rod length is also different, according to the national standard as follows: 380V grounding, grounding wire 500V, 6kV ground, operating rod length 50CM 10KV ground operating rod length 1 meters 35KV grounding wire insulated operating rod length 1.5 meters 110KV grounding wire insulation operating rod length 2 meters 220KV operation rod length 2.5 meters 500KV grounding wire insulation operating rod length of 8 metres insulated grounding wire
[] the ground soft copper wire (short routes are multiple special delicate soft copper wire are merged into one, with a layer of transparent insulating casing PVC, then press the nose (on-line special attention: copper wire with copper and copper clad steel, or dissatisfaction with the party, dissatisfied with the side can not be measured resistance, copper clad steel prices a lot cheaper than copper, detection also can pass, prone to major accidents, customers purchase must carefully)
[ground clamp or grounding pin] specific length according to requirements.. Grounding clip and a grounding rod operation hook made of aluminium and copper, but copper cost more, now more than aluminum.
4, the ground soft copper wire for the introduction of knowledge:
[] soft copper wire diameter 16 mm, 25 mm to 35 mm square soft copper wire, copper wire, copper wire of 50 mm, 75 mm to 90 mm square soft copper wire, copper wire
[] grounding standard of our company in accordance with national standards for production of soft copper wire. The resistance to ground: the connection nose between DC resistance measurement, for 25mm2, 35mm2, 50mm2, 70mm2, all kinds of cross section of 95mm2120mm2, the average resistance per meter value should be less than 0.79m Ω, 0.56m Ω, 0.40m Ω, 0.28M Ω 0.21m Ω 0.16m Ω,. Power frequency withstand voltage test, the operation of 10KV, 35KV, 63KV, 110KV, 220KV grounding rods were to be adopted in 45KV, 95KV, 175KV, 220KV, 440KV pressure, maintain a minute without breakdown. While 330KV, 500KV grounding rod to respectively in 380KV, 580KV on the pressure, keep for five minutes without breakdown. The period of not more than 5 years.
[ground] grounding nail into the ground, ground card busbar
[material] die-casting aluminum die casting material, copper material
[] soft copper wire type classification model: 3*1+6 grounding, grounding wire 3*1+10, 4*1+10 ground, 3*1+15 ground wire, grounding wire 3*3+15.
5, the use of the environment: [] is indoor indoor grounding electric power equipment, wire clip using flat spiral, grounded by grounding clamp (grounding busbar and copper type). Low ground, divided into the ground and outdoor line grounding wire two for indoor equipment, three phase four wire system with general low-voltage lines. []: outdoor with outdoor line, grounding mode is adopted in small ways.
6, ground recommended model: the low-voltage chamber with 50CM flat spiral ground rod four is a set of high quality soft copper wire, 3*1+8 meters of copper by the standard 25 square mm, earthing adopts casting grounding wire clamp. Low voltage outdoor 50CM: is the grounding rod four is a set of wires, using the national standard of 25 square mm 3*1+12 meters high quality soft copper wire.
7, ground usage: should be grounded when in use, after the electricity, this is a wire, wire clip and a copper wire and a ground loop grounding wire clamp.