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