An aluminum conductor is proposed on a terminal identified only for copper. What must change?

NASCLA Electrical exam practice question · General Code Requirements

An aluminum conductor is proposed on a terminal identified only for copper. What must change?

AUse extra torque beyond instructions
Use an identified compatible combination
CFile the conductor smaller
DAdd tape around the lug

Why B is correct

Terminations are evaluated for conductor material, size, temperature, and preparation. Field alteration, tape, or excessive torque cannot create the required listing and can cause overheating.

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An aluminum conductor is proposed on a terminal identified only for copper. What must change?

An aluminum conductor is proposed on a terminal identified only for copper. What must change?

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