Cross sectional areas of various conduit sizes
Area units are in square millimeters (1 IN = 25.381 MM)
CONDUIT
TRADE
SIZE |
RIGID METALLIC |
RIGID NONMETALLIC
(SCHEDULE 40) |
| 100 % AREA |
40 % AREA |
100 % AREA |
40 % AREA |
| 41 |
1334.380 |
533.752 |
1279.091 |
511.637 |
| 53 |
2195.260 |
878.104 |
2120.035 |
848.014 |
| 63 |
3134.420 |
1253.768 |
3024.580 |
1209.832 |
| 78 |
4830.858 |
1932.343 |
4681.939 |
1872.776 |
The above conduit values are from table 4,
chapter 9 of the National Electrical Code (NEC).
Cross sectional areas of various wire types and sizes
Area units are in square millimeters (1 IN = 25.381 MM)
NUMBER
OF
CONDUCTORS |
LOOP DETECTOR
TYPE XHHW |
TRAFFIC SIGNAL CABLE
TYPE XHHW |
| 2/C #14 |
2/C #14 |
5/C #14 |
10/C #14 |
| 1 |
73.059 |
67.405 |
107.059 |
207.237 |
| 2 |
146.118 |
134.810 |
214.118 |
414.474 |
| 3 |
219.177 |
202.215 |
321.177 |
621.711 |
| 4 |
292.237 |
269.621 |
428.236 |
828.948 |
| 5 |
365.296 |
337.026 |
535.295 |
1036.185 |
| 6 |
438.355 |
404.431 |
642.354 |
1243.422 |
| 7 |
511.414 |
471.836 |
749.413 |
1450.659 |
| 8 |
584.473 |
539.241 |
856.472 |
1657.896 |
| 9 |
657.532 |
606.646 |
963.531 |
1865.133 |
| 10 |
730.591 |
674.051 |
1070.590 |
2072.370 |
The above loop detector and traffic signal cable values are
actual cable dimensions of material approved by the NJDOT in accordance with note 5,
chapter 9 of the NEC.
NUMBER
OF
CONDUCTORS |
MULTIPLE LIGHTING WIRE
TYPE RHW |
GROUND WIRE
TYPE THW |
|
#2 AWG |
#4 AWG |
#6 AWG |
#8 AWG |
#10 AWG |
#8 AWG
(BARE) |
#8 AWG
(INSULATED) |
| 1 |
112.717 |
85.882 |
67.036 |
53.770 |
28.179 |
10.785 |
35.799 |
| 2 |
225.435 |
171.764 |
134.073 |
107.541 |
56.359 |
21.570 |
71.598 |
| 3 |
338.152 |
257.646 |
201.109 |
161.311 |
84.538 |
32.354 |
107.397 |
| 4 |
450.870 |
343.528 |
268.145 |
215.081 |
112.717 |
43.139 |
143.196 |
| 5 |
563.587 |
429.410 |
335.182 |
268.852 |
140.897 |
53.924 |
178.995 |
| 6 |
676.305 |
515.292 |
402.218 |
322.622 |
169.076 |
64.709 |
214.794 |
| 7 |
789.022 |
601.173 |
469.254 |
376.392 |
197.256 |
75.494 |
250.593 |
| 8 |
901.740 |
687.055 |
536.290 |
430.162 |
225.435 |
86.279 |
286.392 |
| 9 |
1014.457 |
772.937 |
603.327 |
483.933 |
253.614 |
97.063 |
322.191 |
| 10 |
1127.175 |
858.819 |
670.363 |
537.703 |
281.794 |
107.848 |
357.990 |
The above Multiple Lighting and Ground Wire values
are from table 5 and table 8, chapter 9 of the NEC.(NEC)
