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Code Q&A: Grounding & Lightning Protection System

Your most pressing National Electrical Code (NEC) questions answered

Q. Please explain how I'm supposed to ground a service on a building that has a ground ring used for the lightning protection system grounding electrode?

A. If a lightning protection system is installed on a building/structure, it must be bonded to the building/structure grounding electrode system as per 250.106. The grounding electrode for a lightning protection system must not be used as the required grounding electrode system for the buildings or structures [250.60].

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