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Code Quiz

Dec 23, 2010 7:56 PM, By Steven Owen

When applying the new requirements for disconnecting means for circuits operating at more than 600V — including inspections and tests of instrument transformers, protective relays, switching circuits, control and signal circuits, and more — which organization is mentioned as a source of information with respect to testing specifications?

1. NFPA
2. NETA
3. IEC
4. ANSI

Answer: B

Sections 225.52 and 225.56 of the 2011 NEC address the disconnecting means and testing and inspection of the disconnecting means for outside feeders and branch circuits. NETA (InterNational Electrical Testing Association) has developed acceptance specifications that may be followed for the testing requirements.

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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