Fuji Electric FRENIC MEGA G2 Series - Appendix F Permissible Current of Insulated Wires

Appendix F Permissible Current of Insulated Wires
Appendix-26
Appendix F Permissible Current of Insulated Wires
The tables below list the permissible current of IV wires, HIV wires, and 600 V cross-linked polyethylene insulated
wires.
◼ IV wire (maximum permissible temperature: 60 C (140 °F))
Table F-1 (a) Permissible current of insulated wires
Wire size
(mm
2
)
Permissible current
Aerial wiring
Wire duct wiring
(3 wires or less in same duct)
Threshold value
35 °C
40 °C
45 °C
50 °C
55 °C
35 °C
40 °C
45 °C
50 °C
(30 °C or less)
(Io x 0.91)
(Io x 0.82)
(Io x 0.71)
(Io x 0.58)
(Io x 0.41)
(Io x 0.64)
(Io x 0.57)
(Io x 0.49)
(Io x 0.40)
Io (A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
2.0
27
24
22
19
15
11
17
15
13
10
3.5
37
33
30
26
21
15
23
21
18
14
5.5
49
44
40
34
28
20
31
28
24
19
8.0
61
55
49
43
35
24
38
34
30
24
14
88
80
71
62
50
35
56
50
43
35
22
115
104
93
81
66
46
73
65
56
46
38
162
147
132
114
93
66
103
92
80
65
60
217
198
177
153
125
88
138
124
107
87
100
298
272
243
210
172
121
190
170
147
120
150
395
360
322
279
228
161
252
225
195
159
200
469
428
382
331
270
191
299
268
232
189
250
556
507
453
393
321
226
355
317
275
224
325
650
593
530
459
375
265
415
371
321
262
400
745
680
608
526
430
304
476
425
368
301
500
842
768
687
595
486
343
538
481
416
340
2 x 100
497
453
405
351
286
202
317
284
246
200
2 x 150
658
600
537
465
379
268
420
376
325
265
2 x 200
782
713
638
552
451
319
499
446
387
316
2 x 250
927
846
756
655
535
378
592
529
458
374
2 x 325
1083
988
884
765
625
442
692
618
536
437
2 x 400
1242
1133
1014
878
717
507
793
709
614
501
2 x 500
1403
1280
1145
992
810
572
896
801
694
567