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Title 30: Mineral Resources
CHAPTER I: MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
SUBCHAPTER O: COAL MINE SAFETY AND HEALTH
PART 77: MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart I: Surface High-Voltage Distribution
77.811 - Movement of portable substations and transformers.
Portable substations and transformers shall be deenergized before they are moved from one location to another.
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