Whole-Mine Demonstration of Trolley Phone Communication Improvements Through Use of the Dedicated-Wire Technique

Details

• Personal Author:
  Lagace, Robert L. ; Spencer, Richard H.
• Description:
  A whole-mine demonstration experiment was performed to assess the practical feasibility and utility of the dedicated-wire technique for overcoming poor trolley carrier phone system performance at a large underground coal mine. The technique involves the use of a single, low-loss, properly terminated and branched auxiliary wire placed in the rail haulageway. This auxiliary dedicated-wire allows signals to electromagnetically couple to the trolley wire/rail transmission line, and thereby significantly decrease the overall signal attenuation rate of the trolley wire/rail line. The in-mine dedicated-wire demonstration program and its findings and conclusions are described. The dedicated-wire technique is shown to be a valid and practical one for significantly improving carrier phone system performance in coal mines. [Description provided by NIOSH]
• Subjects:
  Automobiles Ferrous Compounds Glass Mining Occupational Health Plastics Recycling Rubber Safety
• Keywords:
  Electrical-systems Electrical-transmission Electronic-devices Electronic-equipment Mining-equipment Mining-industry Underground-mining
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Massachusetts ; OSHA Region 1 ; OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  98-115
• NIOSHTIC Number:
  nn:20033476
• Citation:
  Proceedings of the Sixth WVU Conference on Coal Mine Electrotechnology, Morgantown, West Virginia, July 28-30, 1982. Cooley WL, ed., Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, Contract J0123017, 1982 Nov; :98-115
• Editor(s):
  Cooley WL
• Federal Fiscal Year:
  1983
• Performing Organization:
  Arthur D. Little, Inc.
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the Sixth WVU Conference on Coal Mine Electrotechnology, Morgantown, West Virginia, on July 28-30, 1982.
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:aee548340a97f8bbf9e26a7a70dd373c83df3e3fa7b4362daba58eeab922443cf370f30e148781c1ba69fde34d05d2c64ff4bda49d96be95934461a1dda2f979
• Download URL:
  https://stacks.cdc.gov/view/cdc/226926/cdc_226926_DS1.pdf
• File Type:
  [PDF - 2.53 MB ]