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Power Cables |  |
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Power Cables
Current Rating
Current Rating for 3.8/6.6KV (Um=7.2KV), 6.35/11KV (Um=12KV) & 8.7/15KV (Um=17.5KV)
Nom. Cross- Section Area |
Ground |
Duct |
Air |
|||||||||
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Touching Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
|||||||
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
|
mm2 |
A |
A |
A |
A |
A |
A |
||||||
25 |
160/160 |
120/120 |
170/170 |
125/125 |
165/165 |
125/125 |
165/165 |
125/125 |
170/170 |
130/130 |
230/235 |
180/180 |
35 |
180/180 |
150/150 |
190/190 |
155/15 |
185/185 |
155/155 |
185/185 |
155/155 |
200/200 |
160/160 |
260/265 |
210/210 |
50 |
220/220 |
170/170 |
230/230 |
175/175 |
225/220 |
175/170 |
220/220 |
170/170 |
235/250 |
180/195 |
295/300 |
230/230 |
70 |
270/270 |
210.210 |
280/280 |
215/215 |
270/260 |
215/210 |
270/270 |
210/210 |
285/310 |
225/240 |
370/370 |
290/290 |
95 |
320/320 |
250/250 |
335/335 |
260/260 |
320/305 |
255/245 |
325/325 |
250/250 |
360/375 |
280/295 |
455/460 |
350/355 |
120 |
360/360 |
280/280 |
380/380 |
295/295 |
360/340 |
285/27 |
370/370 |
285/285 |
415/430 |
320/355 |
520/530 |
410/410 |
150 |
410/410 |
320/315 |
430/430 |
330/330 |
400/375 |
315/300 |
415/410 |
320/320 |
470/490 |
365/380 |
600/600 |
465/465 |
185 |
460/455 |
360/355 |
485/485 |
375/375 |
440/410 |
350/335 |
465/460 |
360/360 |
540/550 |
425/435 |
690/690 |
530/530 |
240 |
530/520 |
415/405 |
560/560 |
440/440 |
505/460 |
405/380 |
540/540 |
420/420 |
640/650 |
500/510 |
820/820 |
640/630 |
300 |
600/580 |
475/455 |
640/640 |
495/495 |
560/500 |
455/420 |
610/610 |
475/470 |
740/740 |
580/580 |
940/940 |
730/730 |
400 |
680/650 |
540/510 |
730/730 |
570/570 |
610/530 |
510/455 |
690/690 |
540/540 |
840/840 |
670/670 |
1100/1100 |
860/860 |
500 |
750/710 |
610/570 |
830/830 |
650/650 |
680/570 |
570/500 |
790/780 |
620/620 |
940/930 |
790/770 |
1280/1280 |
1010/1010 |
630 |
830/760 |
680/640 |
940/940 |
750/750 |
750/620 |
640/550 |
890/890 |
710/700 |
1110/1040 |
910/880 |
1500/1480 |
1190/1180 |
Current Rating for 12.7/22KV (Um=24KV):
Nom. Cross- Section Area |
Ground |
Duct |
Air |
|||||||||
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Touching Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
|||||||
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
|
mm2 |
A |
A |
A |
A |
A |
A |
||||||
35 |
180/180 |
130/130 |
200/200 |
135/135 |
180/170 |
130/125 |
180/175 |
130/125 |
190/175 |
145/135 |
225/230 |
175/175 |
50 |
220/220 |
170/170 |
230/230 |
175/175 |
225/210 |
175/170 |
225/220 |
175/170 |
245/260 |
190/200 |
295/300 |
230/230 |
70 |
270/270 |
210.210 |
280/280 |
215/215 |
270/260 |
210/205 |
270/270 |
210/210 |
300/320 |
235/245 |
365/370 |
285/285 |
95 |
320/320 |
250/245 |
335/335 |
260/260 |
320/300 |
250/245 |
320/325 |
250/250 |
360/380 |
280/295 |
450/450 |
345/350 |
120 |
360/360 |
280/280 |
380/380 |
295/295 |
360/340 |
280/275 |
365/365 |
285/285 |
425/440 |
330/340 |
520/520 |
400/400 |
150 |
410/410 |
320/310 |
430/430 |
330/330 |
405/370 |
320/300 |
410/410 |
320/315 |
485/490 |
375/385 |
590/590 |
455/455 |
185 |
460/450 |
360/350 |
485/485 |
375/375 |
445/400 |
350/335 |
460/460 |
360/360 |
550/560 |
430/440 |
670/670 |
520/520 |
240 |
530/510 |
415/405 |
560/560 |
440/440 |
520/45 |
415/380 |
530/530 |
415/415 |
650/650 |
510/510 |
800/800 |
620/620 |
300 |
600/570 |
475/450 |
640/640 |
495/495 |
570/490 |
460/415 |
600/600 |
470/470 |
740/730 |
580/58 |
920/910 |
710/710 |
400 |
690/640 |
550/510 |
730/730 |
570/570 |
630/530 |
520/460 |
690/680 |
540/530 |
850/830 |
680/670 |
1070/1060 |
840/830 |
500 |
760/700 |
610/570 |
830/830 |
650/650 |
700/570 |
570/510 |
780/770 |
610/610 |
980/940 |
790/770 |
1250/1230 |
980/970 |
630 |
850/760 |
690/640 |
950/940 |
750/750 |
780/610 |
650/560 |
890/880 |
700/700 |
1130/1050 |
920/880 |
1450/1430 |
1060/1140 |
Current Rating for 19/33KV (Um=36KV)
Nom. Cross- Section Area |
Ground |
Duct |
Air |
|||||||||
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Touching Unarm’d/Arm’d |
Trefoil Unarm’d/Arm’d |
Flat Spaced Unarm’d/Arm’d |
|||||||
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
CU |
AL |
|
mm2 |
A |
A |
A |
A |
A |
A |
||||||
50 |
220/220 |
170/170 |
230/230 |
175/175 |
225/220 |
175/170 |
225/220 |
175/170 |
245/260 |
190/200 |
295/300 |
230/230 |
70 |
270/270 |
210/210 |
280/280 |
215/215 |
270/260 |
210/205 |
270/270 |
210/210 |
300/320 |
235/245 |
365/370 |
285/285 |
95 |
320/320 |
250/245 |
335/335 |
260/260 |
320/300 |
250/245 |
320/325 |
250/250 |
360/380 |
280/295 |
450/450 |
345/350 |
120 |
360/360 |
280/280 |
380/380 |
295/295 |
360/340 |
280/275 |
365/365 |
285/285 |
425/440 |
330/340 |
520/520 |
400/400 |
150 |
410/410 |
320/310 |
430/430 |
330/330 |
405/370 |
320/300 |
410/410 |
320/315 |
485/490 |
375/385 |
590/590 |
455/455 |
185 |
460/450 |
360/350 |
485/485 |
375/375 |
445/400 |
350/335 |
460/460 |
360/360 |
550/560 |
430/440 |
670/670 |
520/520 |
240 |
530/510 |
415/405 |
560/560 |
440/440 |
520/450 |
415/380 |
530/530 |
415/415 |
650/650 |
510/510 |
800/800 |
620/620 |
300 |
600/570 |
475/450 |
640/640 |
495/495 |
570/490 |
460/415 |
600/600 |
470/470 |
740/730 |
580/580 |
920/910 |
710/710 |
400 |
690/640 |
550/510 |
730/730 |
570/570 |
630/530 |
520/460 |
690/680 |
540/530 |
850/830 |
680/670 |
1070/1060 |
840/830 |
500 |
760/700 |
610/570 |
830/830 |
650/650 |
700/570 |
570/510 |
780/770 |
610/610 |
980/940 |
790/770 |
1250/1230 |
980/970 |
630 |
850/760 |
690/640 |
940/940 |
750/750 |
780/610 |
650/560 |
890/880 |
700/700 |
1130/1050 |
920/880 |
1450/1430 |
1060/1140 |
Current Rating Conditions:
Ground Temperature:20°C
Ambient Temperature (air): 30°C
Depth of Soil: 0.8m
Thermal Resistance of Soil: 1.5K•m/W
Single Core 3.8/6.6KV (Um=7.2KV)
Single Core 6.35/11KV (Um=12KV)
Single Core 8.7/15KV (um=17.5kV)
Single Core 12.7/22KV (um=24kV)