Versions of 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers on LawServer 2024 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2023 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2022 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2021 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2020 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2019 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2016 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2015 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2014 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2010 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers 2009 30 CFR 77.900 – Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers