TABLE III-C. Details of high strength copper alloy conductors (soft metric conversion).
Cross-sectional
Diameter of stranded conductor
Max resistance of
Min
area (mm2)
Allow-
conductor (ohm/ km at
breaking
Stranding
Nominal
Max (mm)
able
20 °C)
strength
Elong-
(no. of
Size
dia. of
K-
no. of
Sm dia
Gen'l purpose
(Kgs)
ation
strands
desig-
individual
value
missing
Nominal
Min
Silver
Nickel
(SCA/
(% Min)
X AWG of
nation
strands
Minimum
strands
1/ (all)
(mm)
(SCA/
(SCA/
Coated
Coated
SCA1/
(mm) 1/
strands)
(NCA)
(NCA)
(Max)
SCA1)
SCA1)
(SCA/
(NCA)
NCA)
SCA1)
30
0.0568
0.0517
0.77
7x38
0
0.102
0.267
0.315
0.340
0.315
0.340
385.2
425.2
2.3
6
28
0.0887
0.0816
1.05
7x36
0
0.127
0.343
0.391
0.417
0.391
0.417
244.1
259.2
3.7
6
26
0.1540
0.1393
1.34
19x38
0
0.102
0.445
0.518
0.518
0.518
0.544
147.0
162.1
6.4
6
24
0.2407
0.2199
1.18
19x36
0
0.127
0.572
0.620
0.645
0.645
0.671
93.2
98.8
10.2
6
22
0.3821
0.3517
1.87
19x34
0
0.160
0.724
0.798
0.798
0.823
0.848
57.4
61.0
18.2
6
20
0.6162
0.5711
1.34
19x32
0
0.203
0.927
1.03
1.00
1.03
1.05
35.1
37.4
26.4
6
18
0.9627
0.8969
1.34
19x30
0
0.254
1.18
1.19
1.19
1.28
1.31
21.1
22.3
41.0
6
16
1.229
1.146
1.19
19x29
0
0.287
1.31
1.35
1.35
1.46
1.48
16.1
16.9
52.2
6
1/ Nominal values are for information only. Nominal values are not requirements.
THIS SOFT METRIC CONVERSION TABLE III-C PROVIDES A CROSS-REFERENCE TO TABLE II-C.
FOR INFORMATION ONLY
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