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Code of Federal Regulations

ECFRcb3ebfc5bbf7bf6

Underground Only

57.12080Bare conductor guards.57.12081Bonding metal pipelines to ground return circuits.57.12082Isolation of powerlines.57.12083Support of power cables in shafts and boreholes.57.12084Branch circuit disconnecting devices.57.12085Transformer stations.57.12086Location of trolley wire.57.12088Splicing trailing cables.