ขนาดสาย (มม.) ชนิดท่อ
**The number of cables to be placed in the conduit specified by NEC (Chapter 9)
One conductor: maximum fill is 53%
Two conductors: maximum fill is 31%
Three conductors or more: maximum fill is 40%
| Conduit Size (inch) | Conduit Area (mm2) | Fill Rate (%) | ||
| 31% | 40% | 53% | ||
| No. of cable | ||||
