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Permissible continuous current loads on bare wires. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Electrician's Handbook
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Permissible long-term current loads on bare wires depend on the conditions of their operation, the place of their laying, etc.
The data given is for copper (М), aluminum (А) wires, as well as the most widely used steel-aluminum wires grade AU section from 10 to 700 mm2
Section, mm2 |
Wire brand |
Current load, A |
Outdoors |
Indoors |
Outdoors |
Indoors |
Wire brand |
M |
A |
M |
A |
10 |
AC-10/1,8 |
84 |
53 |
95 |
- |
60 |
- |
16 |
AC-16/2,7 |
111 |
79 |
133 |
105 |
102 |
75 |
25 |
AC-25/4,2 |
142 |
109 |
183 |
136 |
137 |
106 |
35 |
AC-35/6,2 |
175 |
135 |
223 |
170 |
173 |
130 |
50 |
AC-50/8 |
210 |
165 |
275 |
215 |
219 |
165 |
70 |
AC-70/11 |
265 |
210 |
337 |
265 |
268 |
210 |
95 |
AC-95/16 |
330 |
260 |
422 |
320 |
341 |
255 |
120 |
AC-120/19 |
390 |
313 |
485 |
375 |
395 |
300 |
120 |
AC-120/27 |
375 |
- |
485 |
375 |
395 |
300 |
150 |
AC-150/19 |
450 |
365 |
570 |
440 |
465 |
355 |
150 |
AC-150/24 |
450 |
365 |
570 |
440 |
465 |
355 |
150 |
AC-150/34 |
450 |
- |
570 |
440 |
465 |
355 |
185 |
AC-185/24 |
520 |
430 |
650 |
500 |
540 |
410 |
185 |
AC-185/29 |
510 |
425 |
650 |
500 |
540 |
410 |
185 |
AC-185/43 |
515 |
- |
650 |
500 |
540 |
410 |
240 |
AC-240/32 |
605 |
505 |
760 |
590 |
685 |
490 |
240 |
AC-240/39 |
610 |
505 |
760 |
590 |
685 |
490 |
240 |
AC-240/56 |
610 |
- |
760 |
590 |
685 |
490 |
300 |
AC-300/39 |
710 |
600 |
880 |
680 |
740 |
570 |
300 |
AC-300/48 |
690 |
585 |
880 |
680 |
740 |
570 |
300 |
AC-300/66 |
680 |
- |
880 |
680 |
740 |
570 |
330 |
AC-330/27 |
730 |
- |
- |
- |
- |
- |
400 |
AC-400/22 |
830 |
713 |
1050 |
815 |
895 |
690 |
400 |
AC-400/51 |
825 |
705 |
1050 |
815 |
895 |
690 |
400 |
AC-400/64 |
860 |
- |
1050 |
815 |
895 |
690 |
500 |
AC-500/27 |
960 |
830 |
- |
980 |
- |
820 |
600 |
AC-600/72 |
1050 |
920 |
- |
1100 |
- |
955 |
700 |
AC-700/86 |
1180 |
1140 |
- |
- |
- |
- |
Note: Long-term current loads are the same for wires of AS, AKS, ASK and ASKP brands.
Publication: electro.narod.ru
See other articles Section Electrician's Handbook.
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