Trane CDHF, Инженерный бюллетень

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58 CTV-PRB004-EN
Electrical System–Power Wire Sizing
Table 11. MCA look-up table for 75°C copper conductors rated for 0–2,000 Volts
(a)
Note: Use this table to select supply leads for all starters, and motor leads for remote-mounted across-the-
line, primary reactor, autotransformer, and Adaptive Frequency Drives. Value in table must be larger
than the MCA to use the wire combination.
Wire Size
1 Conduit
3 Wires
1 Conduit
6 Wires
2 Conduits
3 Wires ea.
3 Conduits
3 Wires ea.
2 Conduits
6 Wires ea.
4 Conduits
3 Wires ea.
5 Conduits
3 Wires ea.
6 Conduits
3 Wires ea.
8 50
6 65
4 85
3 100
2 115
1 130
0 150 240 300 450 480 600 750 900
00 175 280 350 525 560 700 875 1050
000 200 320 400 600 640 800 1000 1200
0000 230 368 460 690 736 920 1150 1380
250 255 408 510 765 816 1020 1275 1530
300 285 456 570 855 912 1140 1425 1710
350 310 496 620 930 992 1240 1550 1860
400 335 536 670 1005 1072 1340 1675 2010
500 380 608 760 1140 1216 1520 1900 2280
600 420 672 840 1260 1344 1680 2100 2520
(a) Based on 2011 NEC Table 310.15(B)(16)
Table 12. MCA look-up table for 75°C copper conductors rated for 0–2,000 Volts
(a)
Note: Use this table to select motor leads for remote-mounted wye-delta and solid-
state starters (inside-the-delta designs only).Value in table must be larger
than the MCA to use the wire combination.
Wire Size
1 Conduit
6 Wires
2 Conduits
3 Wires ea.
2 Conduits
6 Wires ea.
4 Conduits
3 Wires ea.
3 Conduits
6 Wires ea.
6 Conduits
3 Wires ea.
8 69 86
6 89 112
4 117 146
3 137 172
2 158 198
1 179 224
0 206 258 413 517 620 775
00 241 301 482 603 724 905
000 275 344 551 689 827 1034
0000 317 396 634 793 951 1189
250 351 439 703 879 1055 1319
300 393 491 786 982 1179 1474
350 427 534 855 1069 1282 1603
400 462 577 924 1155 1386 1732
500 524 655 1048 1310 1572 1965
600 579 724 1158 1448 1737 2172
(a) Based on 2011 NEC Table 310.15(B)(16)
CTV-PRB004.book Page 58 Sunday, December 18, 2011 6:39 PM