The National Electrical Code is the bedrock of the electrical
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Do you know all the ins and outs of the Code?
NECA and Electrical Contractor magazine are pleased to present their
daily online feature, “Code Question of the Day.”
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Code Question Of The Day
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Wednesday, March 10, 2010
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Subject: Romex Installed Outside of Residence, CQD 2/17/10
Charlie
Great Job. I have installed panels out doors at a residential location and have put a j-box inside to change to THWN for this very violation, but what about a HVAC disconnect, we usually run Romex to it and then put on the whip with THWN. Also some electricians install a FS box on the outside of the house with Romex to the receptacle I guess these installations are also a violation.
Sam Lowe
MA Journeyman
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code question and answer:
Tuesday, March 09, 2010
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Subject: Residential Dishwashers
We have a question regarding residential dishwasher installations. If a dishwasher is hard wired, does the on-off switch that is part of the dishwasher serve as a disconnecting means? Or do we have to cord connect it in the cabinet adjacent to the dishwasher or supply a permanent lock out device in the panel that serves it?
Brian H. White
Colonial Electric Contracting, Inc
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Answer:
Hi Brian, unit switches with a marked off position are permitted as the disconnecting means where other means for disconnection are provided as shown in 422.34(A) through (D). In a one-family dwelling a dishwasher with a unit switch that has a marked off position can be hard-wired using the service disconnecting means as the other required disconnecting means.
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Section: 422.34
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Source: Charlie Trout
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ANSWERS: Answers are the author’s opinions and do not represent formal interpretations of the National Electrical Code.
All answers are based on the latest edition of the NEC, unless the question requests a response based on a specific edition.
CONTACT US: To submit a question, subscribe to Code Question of the Day, or remove yourself from this list, please send an e-mail to
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ABOUT THE AUTHOR: Charlie Trout is a nationally-known NEC expert and author. He served on three different National Electrical Code-Making Panels and is past chairman of CMP-12. He is also a member of the NECA Codes & Standards Committee. In 2006 Charlie Trout won the prestigious Coggeshall Award, given to recognize outstanding contributions to the electrical contracting industry in the technical and training area.
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