Page 766 - 2018_IRC

POWER AND LIGHTING DISTRIBUTION

TABLE E3904.6(9) (Annex C, Table C.9)
a
MAXIMUM NUMBER OF CONDUCTORS IN RIGID PVC CONDUIT, SCHEDULE 80 (PVC-80)
TRADE SIZES
CONDUCTOR SIZE
TYPE LETTERS (inches)
AWG/kcmil
1 3 1 1 1 1 2
/ 2 / 4 / 4 1 / 2
14 3 5 9 17 23 39
12 2 4 7 14 19 32
10 1 3 6 11 15 26
8 1 1 3 6 8 13
6 1 1 2 4 6 11
4 1 1 1 3 5 8
RHH, RHW, RHW-2 3 0 1 1 3 4 7
2 0 1 1 3 4 6
1 0 1 1 1 2 4
1/0 0 0 1 1 1 3
2/0 0 0 1 1 1 3
3/0 0 0 1 1 1 3
4/0 0 0 0 1 1 2
14 6 11 20 35 49 82
12 5 9 15 27 38 63
TW, THHW, THW, THW-2
10 3 6 11 20 28 47
8 1 3 6 11 15 26
14 4 8 13 23 32 55
12 3 6 10 19 26 44
RHH , RHW , RHW-2 a
a
a
10 2 5 8 15 20 34
8 1 3 5 9 12 20
6 1 1 3 7 9 16
4 1 1 3 5 7 12
a
a
a
RHH , RHW , RHW-2 , 3 1 1 2 4 6 10
TW, THW, THHW, THW-2 2 1 1 1 3 5 8
1 0 1 1 2 3 6
1/0 0 1 1 1 3 5
2/0 0 1 1 1 2 4
RHH , RHW , RHW-2 , 3/0 0 0 1 1 1 3
a
a
a
TW, THW, THHW, THW-2
4/0 0 0 1 1 1 3
14 9 17 28 51 70 118
12 6 12 20 37 51 86
10 4 7 13 23 32 54
8 2 4 7 13 18 31
6 1 3 5 9 13 22
4 1 1 3 6 8 14
THHN, THWN, THWN-2 3 1 1 3 5 7 12
2 1 1 2 4 6 10
1 0 1 1 3 4 7
1/0 0 1 1 2 3 6
2/0 0 1 1 1 3 5
3/0 0 1 1 1 2 4
4/0 0 0 1 1 1 3
14 6 11 20 35 49 82
12 5 9 15 38 63
XHH, XHHW, XHHW-2 10 3 6 11 27 28 47
20
8 1 3 6 118 15 26
6 1 2 4 11 19
(continued)

2018 INTERNATIONAL RESIDENTIAL CODE ® 741
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