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Mining Publication: Thermal Modeling of Portable Power Cables
Keywords: Computer simulation Overload protection Power cables
Original creation date: January 1993
Authors: MR Yenchek, GP Cole, JC Edwards
Report of Investigations - January 1993
Download PDF Document (1.13 MB)
NIOSHTIC2 Number: 10004055
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9463, 1993 Jan:1-19
The U.S. Bureau of Mines investigated the performance of portable power cables under transient conditions. This research had a twofold purpose: (1) to define the thermal characteristics of electrically overloaded trailing cables, and (2) to conceptualize electrical protection for cables that allows maximum cable efficiency without diminishing electrical safety in underground mines. Several tasks were undertaken in support of these goals during the 3-year research effort. Overload tests ranging from 2 to 12 times rated ampacity were conducted in the Bureau's Mine Electrical Laboratory. Two thermal models of energized type G-GC trailing cables were constructed, one based on thermodynamic theory and the other using empirical data from previous Bureau load tests. The empirical model was then incorporated into an interactive computer program that can assist designers and approvers of mining machines in selecting the appropriate size trailing cable. This program can be the basis for a cable protection system that ensures that cables are not the source of fires, ignitions, burns, or explosions underground.
Image of publication Thermal Modeling of Portable Power CablesReport of Investigations - January 1993
Download PDF Document (1.13 MB)
NIOSHTIC2 Number: 10004055
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9463, 1993 Jan:1-19
See Also
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Modernization and Further Development of the NIOSH Mine Emergency Response Training System (MERITS), Phase 1
Probability of Making a Successful Mine Escape While Wearing a Self-Contained Self-Rescuer
A Simulation Approach Analyzing Random Motion Events Between a Machine and its Operator
SPONCOM - A Computer Program for the Prediction of the Spontaneous Combustion Potential of an Underground Coal Mine
SponCom - Spontaneous Combustion Assessment Software - 2.0
Technology News 545 - NIOSH Updates Spontaneous Combustion Assessment Software
Technology News 549 - MFIRE 3.0 - NIOSH Brings MFIRE into 21st Century
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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