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

Access More Questions

A ground ring that will serve as both the electrical grounding electrode (NEC 2020) and the lightning ground ring (NFPA 780 2020) must be buried at least how deep?

12 in, the shallower of the two standards 18 in, because NFPA 780 controls all buried LPS conductors 24 in, a compromise depth 30 in, because the more restrictive NEC 250.52(A)(4) depth applies

Correct Answer:

30 in, because the more restrictive NEC 250.52(A)(4) depth applies

Access more questions from this quiz

Continue to SC Lightning Protection Practice Questions - South Carolina Lightning Protection Systems Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions