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Code Quiz

May 6, 2010 12:16 PM, By Steven Owen

Fill in the blank with the correct answer.
When installing service equipment for services rated more than 35kV (phase-to-phase), where conductors enter a building, the conductors shall terminate in _________.

1. metal-clad junction and pull boxes or heavy-duty metal auxiliary gutters
2. busways or high-voltage switches
3. a metal-enclosed switchgear compartment or a vault meeting certain requirements of Art. 450
4. There is no correct answer. It is not permitted to install conductors in a building that operate at more than 35kV.

Answer: C

As noted in 230.212, when conductors operating above 35kV (between conductors) enter a building, they shall terminate in a metal-enclosed switchgear compartment or a vault conforming to the requirements of 450.41 through 450.48.

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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