A residential subdivision requires a new generator to be installed. The generator has a capacity of 10kW. What is the minimum conductor size required for the generator's service entrance cable, according to the 2026 NEC?

Texas Master exam practice question · Motors & Generators

A residential subdivision requires a new generator to be installed. The generator has a capacity of 10kW. What is the minimum conductor size required for the generator's service entrance cable, according to the 2026 NEC?

A10 AWG
12 AWG
C14 AWG
D16 AWG

Exam tip

Always refer to the appropriate table in the NEC for conductor sizing based on the generator's capacity.

Why B is correct

The 2026 NEC Table 310.16(B)(1) specifies that for a 10kW generator, the minimum conductor size for the service entrance cable is 12 AWG. This size is suitable for a 30A circuit.

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A residential subdivision requires a new generator to be installed. The generator has a capacity of 10kW. What is the minimum conductor size required for the generator's service entrance cable, according to the 2026 NEC?

A residential subdivision requires a new generator to be installed. The generator has a capacity of 10kW. What is the minimum conductor size required for the generator's service entrance cable, according to the 2026 NEC?

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