Dispute with answer to a test question.
The question was:
"The code places a maximum open circuit voltage in or on homes. This maximum voltage is (600) (750 (1000). Circle the correct answer.
Where in NEC is this voltage referenced?"
The answer was given as 1000 volts and NEC 410.80(B).
Since the wiring used is listed as 600 volts, I selected 600. When I went to check the code site, it is non existent.
So where in the NEC is this voltage referenced? I ask this because I cannot find it anywhere in the code book.
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