Report of Investigations 9463: Thermal Modeling of Portable Power Cables

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9463
• Personal Author:
  Yenchek, Michael R. ; Cole, Gregory P. ; Edwards, John C.
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Minerals Mining Noise Noise, Occupational Occupational Health Safety
• Keywords:
  Mining-industry; Underground-mining; Electrical-safety; Electrical-equipment; Electrical-transmission; Cables; Computer-models
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9463, 1993 Jan; :1-19
• Series:
  Mining Publications   ; NIOSH Numbered Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  24 pdf pages
• NIOSHTIC Number:
  nn:10004055
• NTIS Accession Number:
  PB93-203941
• Contact Point Address:
  NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
• Federal Fiscal Year:
  1993
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:60d088ecd41c4fc3c81b330eff41d63ab0223672bd0016f4b252a89cafbc77badb69d5685348b7c641887b159a83e0f84dd26c1c5f96df325b9e74fbb72c1bf4
• Download URL:
  https://stacks.cdc.gov/view/cdc/9542/cdc_9542_DS1.pdf
• File Type:
  [PDF - 1.14 MB ]