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Code Quiz

Mar 26, 2006 2:48 PM, By Steven Owen

Q. Disregarding the Exceptions in 225.32, when are you not required to install a disconnecting means for a building or structure at the building or structure?

Hint: A structure is defined as "that which is built or constructed." A structure could include (but not be limited to) a generator, a communications tower, or possibly a piece of plywood attached to a 4-inch by 4-inch wooden post inserted into the ground (supporting electrical equipment).

A) Never

B) When the disconnecting means is capable of being remotely controlled

C) Where a generator housed outdoors is equipped with a readily accessible disconnecting means located within sight of the building or structure

D) When the disconnecting means has ground-fault protection integral to it

Answer: C

Explanation: Where an outdoor housed generator set is equipped with a readily accessible disconnecting means (at the generator location), and if the disconnect at the generator location is within sight of the building or structure supplied, an additional disconnecting means shall not be required at the building or structure where ungrounded conductors serve or pass through the building or structure. [701.11(B)(5)]

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at necexpert@aol.com.

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