National Electrical Installation Standards

Standards as High as Your Own

Tuesday, April 14, 2020


Hello CQD, I enjoy the Code questions and responses each day with my morning coffee. Here is a question. Code Section 230.70(A)(1) indicates that the service disconnecting means must be located readily accessible and either outside of a building or structure or inside nearest the point of entrance of the service conductors.The inspector says no more than 10 feet is allowed inside a building. Where is that in the NEC?

Timothy Grant 



Hi Timothy, thanks for the comments and the question. This section does not specify a distance that service conductors can be run inside the building or structure. The reason is that this rule needs to be applied to all situations, and for some larger service installations, meeting this 10 foot length limitation would be difficult, if not impossible. The NEC rules have to be practical. The inspector might be working in a jurisdiction that has this as a local Code requirement. Ask for the Code section in writing to keep everyone on the same page. 

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