A 200-amp residential service requires copper service entrance conductors of at least which AWG size?

A 200-amp residential service requires

Multiple choice — select the best answer

A2/0 AWG
B1/0 AWG
C4/0 AWG
D2 AWG

✓ Correct answer: A. 2/0 AWG NEC Table 310.12 permits 2/0 AWG copper conductors for a 200-amp residential service. Aluminum would require 4/0 AWG for the same rating, reflecting aluminum's lower conductivity.

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Topic: Electrical Systems

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A 200-amp residential service requires copper service entrance conductors of at least which AWG size?

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