Ningbo Lingkai Electric Power Equipment Co., Ltd.
Professional Overhead Line Stringing Manufacturer; Undergroud Cable Pulling Tools Supplier.
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The grounding device is designed for temporary grounding when working on the dead transmission line, to prevent worker from Induction electric shock.
It is suitable for transmission lines,power plants and substation equipment,short circuit grounding for power outage maintenance.
Feature
1.Wire clamper with aluminum alloy casting,high strength,good conductivity.
2.The portable short-circuit grounding wire is packed in canvas bag with exported wooden boxes,which is easy to carry and transport
| Voltage class | Ground soft copper wire | Length of Ground Operation Rod (mm) | |||
| (mm2) | (m) | ||||
| Insulating | Handheld | Total length | |||
| 10KV | 25 | 1*3+7~1.5*3+20 | 700 | 300 | 1000 |
| 35KV | 25 | 1.5*3+18 | 900 | 600 | 1500 |
| 68KV | 25 | 1.5*3+20 | 1000 | 600 | 1600 |
| 110KV | 25,35 | 9*3 | 1300 | 700 | 2000 |
| 2*3+20 | |||||
| 220KV | 25,35 | 9*3 | 2100 | 900 | 3000 |
| 3*3+25 | |||||
| 330KV | 35,50 | 12*3 4*3+25 | 3000 | 1100 | 4100 |
| 500KV | 35,50 | 13*3~20*3 | 4100 | 1400 | 5500 |
| 220-500KV Overhead ground wire | 25 | 1*3+7~1.5*3+20 | 700 | 300 | 1000 |
| High pressure test equipment | 35,50 | 5*3~10*3 | 700 | 300 | 1000 |
The rated value of the copper wire per meter:
| Sectional area(mm) | 10 | 16 | 25 | 35 | 50 | 70 | 95 | 120 |
| Wire diameter(mm) | 4.2 | 5.7 | 7.5 | 8.78 | 11 | 12 | 16 | 17 |
| Sheath diameter(MΩ) | 7.3 | 7.8 | 9.6 | 11.2 | 12.6 | 16.5 | 21 | 22 |
| Resistance value(A) | 1.98 | 1.24 | 0.79 | 0.56 | 0.4 | 0.28 | 0.21 | 0.16 |
| Safety current | 90 | 100 | 123 | 150 | 210 | 238 | 300 | 300 |