NEC 2026 Compatible

A supplemental ground rod must have a resistance to earth of not more than _____ ohms, or a second rod must be installed.

Apprentice Level📋 NEC 250.53(A)(2)Grounding & Bonding
Circuit Diagram
Service Entrance Grounding — NEC 250 Utility XFMR Service Conductors SERVICE PANEL MBJ 250.28 Neutral Bus GEC 250.64 Ground Rod 250.52(A)(5) 8 ft min Water Pipe 250.52(A)(1) 10 ft contact Key Tables: Table 250.66 — GEC sizing Table 250.122 — EGC sizing EGC to branch circuits (250.122)
A

5 ohms

B

10 ohms

C

15 ohms

D

25 ohms

Explanation & Direct Citation

The correct answer is located in the National Electrical Code Section XXX.XX(Y)(Z). Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident.

Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam.

Unlock the Answer & Explanation

Sign in to get 3 free questions with full explanations — no payment needed.

Keep practicing

    Grounding & Bonding Practice Question: NEC 250.53(A)(2) | SparkShift | SparkShift