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COPPER TUBE (BUS)
SOLID COPPER WIRE
(ASTM B1, B2, & B3)
STRANDED COPPER WIRE
(ASTM B8 EXCLUDING BREAKING LOADS)
CABLE DATA
SIZE OF TUBE
IPS
DIAMETER OF TUBE
(Inches)
WALL
THICKNESS
(Inches)
OUTSIDE
INSIDE
STANDARD PIPE SIZES
1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4
4-1/2
5
6
0.540
0.675
0.840
1.050
1.315
1.660
1.900
2.375
2.875
3.500
4.000
4.500
5.000
5.563
6.625
0.375
0.494
0.625
0.822
1.062
1.368
1.600
2.062
2.500
3.062
3.500
4.000
4.500
5.063
6.125
0.082 5
0.090 5
0.107 5
0.114 0
0.126 5
0.146 0
0.150 0
0.156 5
0.187 5
0.219 0
0.250 0
0.250 0
0.250 0
0.250 0
0.250 0
EXTRA HEAVY PIPE SIZES
1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4
4-1/2
5
6
0.540
0.675
0.840
1.050
1.315
1.660
1.900
2.375
2.875
3.500
4.000
4.500
5.000
5.563
6.625
0.294
0.421
0.542
0.736
0.951
1.272
1.494
1.933
2.315
2.892
3.358
3.818
4.250
4.813
5.751
0.123
0.127
0.149
0.157
0.182
0.194
0.203
0.221
0.280
0.304
0.321
0.341
0.375
0.375
0.437
DOUBLE EXTRA HEAVY PIPE SIZES
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4
4-1/2
5
6
0.840
1.050
1.315
1.660
1.900
2.375
2.875
3.500
4.000
4.500
5.000
5.563
6.625
0.252
0.434
0.599
0.896
1.100
1.503
1.771
2.300
2.728
3.152
3.580
4.063
4.897
0.294
0.308
0.358
0.382
0.400
0.436
0.552
0.600
0.636
0.674
0.710
0.750
0.864
SIZE
AWG
(SOLID)
WIRE
DIA
Inch
HARD
DRAWN
MEDIUM
DRAWN
SOFT
DRAWN
NORMAL
BREAKING
LOAD
Pounds
MINIMUM
ELONGATION
IN 10 IN.
% MIN.
BREAKING
LOAD
Pounds
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1/0
2/0
3/0
4/0
.040 30
.045 26
.050 82
.057 07
.064 08
.071 96
.080 81
.090 74
.101 9
.114 4
.128 5
.144 3
.162 0
.181 9
.204 3
.229 4
.257 6
.289 3
.324 9
.364 8
.409 6
.460 0
85.76
107.5
135.2
170.0
213.8
268.2
337.0
422.5
529.2
661.0
826.0
1,030
1,280
1,591
1,970
2,439
3,003
3,688
4,519
5,518
6,722
8,143
67.61
84.71
106.2
133.0
166.6
208.0
261.6
327.6
410.4
514.2
643.9
806.6
1,010
1,265
1,584
1,984
2,450
3,024
3,730
4,599
5,667
6,980
25
25
25
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
35
35
35
35
SIZE
A.S.T.M.
STRANDINGS
HARD
DRAWN
MEDIUM
DRAWN
SOFT
DRAWN
STRANDED
Class No. of
Wires
Cable
Diameter
Inches
Minimum
Breaking
Load
Pounds
Minimum
Breaking
Load
Pounds
Minimum
Breaking
Load
Pounds
Circular
Mills
AWG
1,022
1,624
2,583
4,107
6,530
10,380
13,090
16,510
20,820
26,250
33,100
41,740
41,740
52,630
20
18
16
14
12
10
9
8
7
6
5
4
4
3
B
B
B
B
B
B
B
B
B
B
B
AA
B&A
AA
7
7
7
7
7
7
7
7
7
7
7
3
7
3
0.036 3
0.045 6
0.057 6
0.072 6
0.091 5
0.116
0.130
0.146
0.164
0.184
0.206
0.254
0.232
0.285
50.04
78.99
124.7
197.1
311.1
491.7
618.2
777.2
977.1
1,288
1,542
1,879
1,938
2,359
40.67
63.91
100.4
157.7
247.7
388.9
487.4
610.7
765.2
958.6
1,201
1,465
1,505
1,835
32.09
51.03
81.14
124.2
197.5
314.0
395.9
499.2
629.5
793.8
1001
1213
1262
1530
Tube dimensions (excepting wall thickness, of double
extra heavy) taken from A.S.T.M. Specification B42-33.
Tubular values based on a density of 0.322 pound per
cubic inch.
* Conductivity of 98% I.A.C.S. at 20° C or 68° F.
O-8
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Reference
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