An Application of the Dedicated Wire Technique to Improve Coal Mine Trolley Carrier Phone Communications

Details

• Personal Author:
  Lagace, Robert L. ; Spencer, Richard H.
• Description:
  A whole-mine experiment to assess the practical feasibility and utility of the dedicated-wire technique to overcome poor trolley carrier phone system performance at a large underground coal mine was designed, performed, and evaluated. 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 decreases the overall signal attenuation rate on the trolley wire- rail line. The in-mine dedicated-wire demonstration program and its results, conclusions, and recommendations are described. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications ; Final Contract Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-78
• NIOSHTIC Number:
  nn:10002692
• NTIS Accession Number:
  PB83-149070
• Citation:
  NTIS: PB/83-149070; :1-78
• Federal Fiscal Year:
  1981
• Performing Organization:
  Arthur D. Little, Inc.
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB/83-149070
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0d17ae4fdb8968d74ae2bae1882e03824e0000e1d752a67786e5af68b2a6de0a4606e2e6901f8c3a2fc4d16163c4438047b81e30356438542e33d8b71e44c662
• Download URL:
  https://stacks.cdc.gov/view/cdc/206640/cdc_206640_DS1.pdf
• File Type:
  [PDF - 2.98 MB ]