An electrician is inspecting a commercial building's grounding system. Which of the following is a requirement for grounding the service equipment in accordance with 2026 NFPA 70 NEC Article 250.52?
- AA grounding electrode conductor with a minimum size of 6 AWG
- A grounding electrode conductor with a minimum size of 8 AWG
- CA grounding electrode conductor with a minimum size of 10 AWG
- DA grounding electrode conductor with a minimum size of 12 AWG
Exam tip
Always refer to the specific code requirements for grounding conductor sizes to ensure compliance.
Why B is correct
2026 NFPA 70 NEC Article 250.52(A)(1) specifies that the grounding electrode conductor must be not less than 8 AWG copper or equivalent. Smaller sizes are not acceptable for ensuring adequate grounding.