Mine Safety and Health Administration (MSHA) - Safety & Health - Technical Reports

U.S. Department of Labor
Mine Safety and Health Administration
Protecting Miners' Safety and Health Since 1978

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Electrical

	AC System Impedance Testing
	Acceptance of Innovative Ground Wire Monitor Intallation Schemes for Longwall Operations
	Acceptance of Innovative Ground Wire Monitor Intallation Schemes for Mining Operations
	Analysis of a DC-to-Frame Fault on an AC/DC Shuttle Car
	An Evaluation of Problems Associated with 1,000 VAC Longwall Mining Systems
	Arcing Faults on Direct Current Trolley Systems
	Autotransformers for Supplying Portable Mining Equipment
	Computerized Method for Evaluating the Suitability of Trailing Cables
	Criteria for Approval of Mining Equipment Incorporating On-Board Swithing of High-Voltage Circuits
	Determination of Electrical Clearances for Permissible Equipment Operating in Gassy Mines and Tunnels
	Electrical Grounding Papers
	Evaluation of a Bradford Stuart Industries Welding Voltage Reduction Device
	Evaluation of Welding Voltage Reduction Devices
	Evolution of Longwall Mining and Control Systems in the United States
	"Ghosting" of Electro-Hydraulic Longwall Shield Advance Systems
	Ground Wire Monitors
	High-Voltage Longwall Database
	History of Coal Mine Electrical Fatalities Since 1970
	Installation and Maintenance of Intrinsically Safe Field Wiring in Gassy Mines
	Instantaneous Circuit Breaker Settings for the Short-Circuit Protection of Direct Current 300 and 600 Volt Trailing Cables
	Instantaneous Circuit Breaker Settings for the Short-Circuit Protection of Three Phase 480, 600 and 1040V Trailing Cables
	Interconnection of MSHA Evaluated Mine-Wide Monitoring Systems and MSHA Approved Longwall Mining Systems
	Investigative Report on Variable Frequency Drives
	MSHA Approval Process
	Short-Circuit Protection of Intercomponent Cables on 3 Phase, Alternating Current, Permissible Mining Equipment
	System Safety Applications in Mining
	The Application of Fiber Optics to Coal Mine Pager Telephone Systems


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