Nec Conduit Raceway: IMC
NEC Chapter 9 conduit and raceway dimensions — internal diameter, total area, and fill areas for EMT, RMC, IMC, PVC conduit types
| conduit type | trade size in | area 1 wire pct53 in2 (in2) | area 2 wires pct31 in2 (in2) | area over2 wires pct40 in2 (in2) | internal diameter in (in) | total area in2 (in2) |
|---|---|---|---|---|---|---|
| IMC | 1 | 0.508 | 0.297 | 0.384 | 1.105 | 0.959 |
| IMC | 1-1/2 | 1.179 | 0.69 | 0.89 | 1.683 | 2.225 |
| IMC | 1-1/4 | 0.873 | 0.511 | 0.659 | 1.448 | 1.647 |
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