MSHA HANDBOOK SERIES

MSHA HANDBOOK SERIES Department of Labor Mine Safety and Health Administration Mine Safety and Health Enforcement December 2020 HANDBOOK Number: PH20-V-5 electrical Inspection Procedures HANDBOOK PREFACE This HANDBOOK sets forth procedures for MSHA personnel to follow when conducting investigations and inspections of mines and facilities. Volume I provides guidance for electrical specialist, while Volume II provides guidance to MSHA general inspectors who encounter mine electrical systems and electric-powered equipment during the course of their inspections. Previously issued instructions for this same subject material are superseded by this HANDBOOK . Compliance related instructions that are contained in the MSHA Program Policy Manual remain in effect. Not all procedures and requirements are applicable for all mine types. Any deviation from the procedures outlined in this HANDBOOK should be based on the inspector s professional judgement and discussion with the inspector s supervisor, and consider conditions, practices, and circumstances specific to the mine.

office for the use of electrical engineers and electrical specialists and should include the following publications at a minimum: 1. Mine Power Systems - U.S. Bureau of Mines IC9258 2. National Electrical Code, 1968 and later editions as needed 3. National Electrical Safety Code, 1968 and later editions as needed 4.

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