COPPER BUS
Extra Heavy Pipe Sizes - Hard Drawn
| Nominal inches Size |
Outside Diameter inches |
Inside diameter inches |
Wall Thickness inches |
Area |
Weight lbs./ ft. |
Moment of Inertia inches4 |
Section Modulus inches3 |
Radius of Gyration inches |
Breaking Strength pounds |
Yield Strength pounds |
Self* GMD inches |
R Microhms /ft. |
R'/R* |
Capacity for 30°C temp.
Rise |
| Sq. In |
1000 cm. |
DC amps. |
60 cycles amps. |
NEMA Rating |
| Indoor amps. |
Outdoor amps. |
1/8
¼ 3/8
½
¾ |
.405
.540
.675
.840
1.050 |
.205
.294
.421
.542
.736 |
.100
.123 .127
.149 .157 |
.096 .161 .219 .323 .440 |
122 203 278 412 561 |
.371 .624 .847 1.25 1.71 |
.0012 .0038 .0086 .0202 .0453 |
.006
.014
.026
.048
.086 |
.114
.154
.199
.250
.321 |
3,830 6,450 8,750 12,900 17,600 |
2,400 4,086 5,470 8,100 11,000 |
.173 .233 .298 .374 .476 |
86.3
51.3
87.8
25.6
18.7 |
1.00 1.00 1.00 1.00 1.00 |
185 265 335 445 570 |
185 265 335 445 570 |
.....
..... ..... 460 675 |
.....
.....
.....
62
77 |
1
1¼ 1½
2 2½ |
1.315 1.660 1.900 2.375 2.873 |
.95
1.272 1.494 1.933 2.315 |
.182
.194 .203 .221
.280 |
.648 .893 1.08 1.49 2.29 |
825 1,138 1,378 1,904 2,906 |
2.51 3.46 4.19 5.79 8.84 |
.107
.244
.395
.376
1.94 |
.162
.294
.416
.738
1.35 |
.406
.523
.604
.765
.923 |
25,900 35,700 43,300 59,800 91,300 |
16,200 22,300 27,100 37,400 57,100 |
.600 .768 .885 1.116 1.348 |
12.76
9.25
7.64
5.53
3.62 |
1.00 1.004 1.007 1.01 1.025 |
755 980 1,135 1,460 2,005 |
755 975 1,130 1,450 1,985 |
750 1,000 1,150 1,500 1,975 |
1,01 1,270
1,460 1,850 2,390 |
3
3½ 4
5 |
3.500 4.000 4.500 5.563 |
2.892 3.358 3.818 4.813 |
.304
.321 .341 .375 |
3.05 3.71 4.45 6.11 |
3,886 4,724 5,678 7,782 |
11.82 14.37 17.25 28.67 |
3.98
6.32
9.70 20.67 |
2.25
3.16
4.31
7.43 |
1.135 1.306 1.475 1.84 |
122,000 148,000 178,000 244,000 |
76,300 92,800 111,000 153,000 |
1.652 1.896 2.139 2.660 |
2.71
2.23
1.86
1.35 |
1.035 1.04 1.053 1.08 |
2,470 2,880 3,330 4,165 |
2,425 2,830 3,240 4,000 |
2,475 2,875 3,225 4,000 |
3,000 3,410 3,880
4,700 |
6
8 9
10 |
6.625
8.625
9.625
10.750 |
5.75
7.625
8.625 9.750 |
.437
.500
.500
.500 |
8.49 12.76 14.33 16.10 |
10,871 1,625 1,825 2,050 |
32.93 49.42 55.56 62.40 |
40.86 105.7 149.6 211.9 |
12.34 24.51 31.09 39.43 |
2.19
2.88
3.23
3.63 |
340,000 511,000 573,000 644,000 |
212,000 319,000 358,000 403,000 |
3.170 4.149 4.659 5.211 |
.972
.648
.576
.513 |
1.15 1.24 1.25 1.25 |
5,450 7,500 8,400 9,350 |
5,100 6,750 7,500 8,350 |
4,800 .....
..... ..... |
5,400
.....
.....
..... |
|
