NEC Compliance Tool by calczen.com
Total Wire Area:
0.0000 in²
Internal Conduit Area:
NEC Table 1 Note: Standard fill limit is 40% for 3 or more wires. For 1 wire, limit is 53%. For 2 wires, limit is 31%. This calculator assumes a 40% target for safety. Calculations are approximations based on NEC Chapter 9 tables.