Conductor sizing and ampacities for insulated conductors rated 0-2000 Volts in raceway, cable, or direct buried

Guides > Conductors > Conductor Sizing > Insulated Conductors

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Conductor sizing based on NECŽ Table 310.16. Conductor sizing is for general applications. Some exceptions may apply to specific installations - see the NEC Code for full details. Conductor ampacities are adjusted for temperature and number of bundled current carrying conductors.


Step 1: Load Data
1.1	Load Voltage	Volts
1.2	Conductor Load	Amps
Step 2: Conductor Data
2.1	Conductor Type
2.2	Conductor Insulation
2.3	Temperature Rating of Conductor (in degrees Celsius)
Step 3: Installation Data
3.1	Min. Equipment Terminal Rating (in degrees Celsius)
3.2	Equipment Terminal Rating
3.3	Highest Ambient Temperature
3.4	Conductor Length
3.5	Number of Current Carrying Conductors
Step 4: Solve
4.1	Proof steps	Show proof steps
4.2	Solve for conductor sizing