3.6/6.0 to 18/30 KV XLPE Single Core Insulated Cables
Single core cables 3.6/6.0 KV TO 18/30 KV
Copper or Aluminium conductors,
XLPE insulated Armoured Cables
| Normal Area of Conductor |
In Air
|
In Ground |
In Duct |
| Single core in Trefoil |
Single core in Trefoil |
Laid Singly |
| Copper |
Aluminium |
Copper |
Aluminium |
Copper |
Aluminium |
| Sqmm |
A |
A |
A |
| 50 |
239 |
186 |
212 |
163 |
212 |
163 |
| 70 |
296 |
230 |
259 |
202 |
249 |
202 |
| 95 |
359 |
282 |
308 |
241 |
293 |
235 |
| 120 |
412 |
340 |
346 |
269 |
327 |
265 |
| 150 |
469 |
364 |
394 |
302 |
361 |
288 |
| 185 |
526 |
416 |
437 |
341 |
394 |
322 |
| 240 |
622 |
488 |
500 |
389 |
449 |
365 |
| 300 |
708 |
555 |
557 |
437 |
481 |
404 |
| 400 |
804 |
641 |
625 |
490 |
510 |
437 |
| 500 |
890 |
736 |
683 |
548 |
548 |
481 |
| 630 |
995 |
842 |
730 |
616 |
596 |
529 |
Operating conditions:
Ambient air temperature: 30°c
Ground temperature: 20°c
Depth of laying: 0.8m
Thermal resistivity of soil: 1.2 K.m/W
Above values can be applied safety for Unarmoured cables also.