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second ground rod

Quick NEC 250.53(A)(2) Checker: Do You Need a Second Ground Rod or Meet the 25Ω Rule?

Confused about NEC 250.53(A)(2)? This quick checker helps you determine whether you need a second ground rod or if your system meets the 25Ω rule in minutes.

Categories Grounding and Surge Protection Tags 25 ohm rule, electrical code compliance, ground rod resistance, ground rod testing, grounding electrode system, NEC 250.53(A)(2), NEC grounding requirements, second ground rod

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