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

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An air terminal 36 in tall is installed on a Class I roof ridge. In addition to the 25 ft spacing allowance, where must that rod be supported?

Only at the base; no intermediate support is required under 48 in At a point not less than one-half the height of the air terminal At a point not less than one-third the height of the air terminal Continuously along its full length with a rigid sleeve

Correct Answer:

At a point not less than one-half the height of the air terminal

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