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

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A grounded steel column is 24 ft above the lightning-protection ground reference. One down conductor is in the zone and the path is through masonry (Km = 0.50). What is D?

1.0 ft 2.0 ft 4.0 ft 8.0 ft

Correct Answer:

2.0 ft

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