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

An NFPA 780 (2020) ground rod shall extend vertically not less than how far into the earth?

6 ft (1.8 m) 8 ft (2.4 m) 10 ft (3.0 m) 20 ft (6.1 m)

Correct Answer:

10 ft (3.0 m)

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