2024 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2023 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2022 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2021 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2020 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2019 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2016 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2015 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2014 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2010 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system
2009 30 CFR 77.701-2 – Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system