Copper Conductors for Earthing
- Bare Stranded Copper Conductors as per BS125, BS6360, IS8130, IEC 60228, CEL1024-1, AS1746, VDE0295
Nominal Cross Section Area
Sq. mm |
Nos. / Size of Wire
Nos./ mm |
Conductor Resistance at 20°C (max)
Ohm/ Km |
| 6 |
7/1.04 |
3.08 |
| 10 |
7/1.35 |
1.83 |
| 16 |
7/1.70 |
1.15 |
| 25 |
7/2.14 |
0.727 |
| 35 |
7/2.52 |
0.524 |
| 50 |
19/1.78 |
0.387 |
| 70 |
19/2.14 |
0.268 |
| 95 |
19/2.52 |
0.193 |
| 120 |
37/2.03 |
0.153 |
| 150 |
37/2.25 |
0.124 |
| 185 |
37/2.52 |
0.099 |
| 240 |
61/2.25 |
0.0754 |
| 300 |
61/2.52 |
0.061 |
| 400 |
61/2.85 |
0.047 |
Note:
Insulation thickness, Sheath thickness and overall dimensions are nominal values. The number of wires is approximate and strand diameter is nominal; they shall be such as to satisfy the requirements of conductor resistance as per IS 8130/1984, BS-6360, IEC-60228 & VDE-0295 .
