SC Lightning Protection Practice Questions - South Carolina Lightning Protection Systems Contractor Examination Exam

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A copper grounding electrode conductor is installed in a ferrous metal raceway for physical protection. NEC 2020 250.64(E) requires which additional step?

The raceway shall be left isolated from the GEC at both ends The raceway shall be bonded at each end of the raceway to the enclosed GEC The GEC shall be increased two AWG sizes A second GEC of aluminum shall be run outside the raceway

Correct Answer:

The raceway shall be bonded at each end of the raceway to the enclosed GEC

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