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Mining Publication: Protecting Miners from Electrical Arcing Injury
Keywords: Circuit breakers Electrical burns Lockout tagout Underground mining
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: January 2007
Authors: JC Cawley, GT Homce
Conference Paper - January 2007
Download PDF Document (0.49 MB)
NIOSHTIC2 Number: 20032718
IAS '07: Conference Record of the 2007 IEEE Industry Applications Conference: Forty-second IAS Annual Meeting, September 23-27, 2007, New Orleans, Louisiana. Piscataway, NJ: Institute of Electrical and Electronics Engineers, 2007; 4:1-8
Electrical arcing injuries are the most common form of electrical injury in mining. MSHA data show that 381 "non-contact electric arc burn" injuries occurred in the mining industry from 1996 - 2005. A more detailed study of data from 1990-2001 showed that five types of apparatus - circuit breakers, conductors, nonpowered hand tools, electrical meters and test leads, and connectors and plugs were involved in two-thirds of the lost workday injuries. Many of the protections from electrical arcing injury available to workers in other industries stem from the application of National Fire Protection Association Standard 70E - Standard for Electrical Safety in the Workplace (NFPA 70E). NFPA 70E is a generally accepted industry guideline document, but excludes underground mining from its scope. Many of its practices and procedures, however, can be applied in the mining workplace to supplement the existing electrical safety requirements of Title 30 Code of Federal Regulations. This paper describes how NFPA 70E can be applied to mining workplaces after an analysis of the mine power system electrical arcing hazards has been completed (and Hazard/Risk Categories determined) using the tables from NFPA 70E or the calculation method as described in IEEE 1584. NFPA 70E can then be used to determine the levels and types of personal protective equipment (PPE) needed to protect miners against burn injuries. Appropriate lockout and tagout (LOTO) procedures for use in the mining industry are also described. Suggestions for better selection of electrically-rated hand tools are included. Recommendations for electrical meter selection and use based on transient withstand capability are also discussed.
Image of publication Protecting Miners from Electrical Arcing InjuryConference Paper - January 2007
Download PDF Document (0.49 MB)
NIOSHTIC2 Number: 20032718
IAS '07: Conference Record of the 2007 IEEE Industry Applications Conference: Forty-second IAS Annual Meeting, September 23-27, 2007, New Orleans, Louisiana. Piscataway, NJ: Institute of Electrical and Electronics Engineers, 2007; 4:1-8
See Also
A Computer Software Program that Estimates Air Quantity Requirements in Large Opening Stone Mines
Performance and Safety Investigation of Emergency Backup Batteries and Battery Charging Systems for Underground Mining Applications
Practical Risk Assessment Guidelines for Identifying, Assessing, and Mitigating Stored Energy Hazards in Underground Coal Mines During and After a Mine Emergency
Refuge Alternatives in Underground Coal Mines
Safe and Economical Inerting of Sealed Mine Areas
SPONCOM - A Computer Program for the Prediction of the Spontaneous Combustion Potential of an Underground Coal Mine
Technology News 514 - The Air Quantity Estimator (AQE): A New Computer Software Tool for Large-opening Mine Ventilation Planning
Technology News 545 - NIOSH Updates Spontaneous Combustion Assessment Software
Ultra-Low Frequency Through-the-Earth Communication Technology
Wireless Mesh Mine Communication System
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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