Mine Grounding Systems. Evaluation of In-Mine Grounding System and Codification of Ground Bed Construction and Measurement Techniques

Details

• Personal Author:
  Cooley WL ; McConnell RL
• Description:
  The report describes two major grounding topics: mine ground systems and ground-check monitors. Performance characteristics of ground-check monitors for high-voltage surface mine distribution cables and low-voltage underground mine trailing cables are evaluated. Over 20 commercially available monitors are studied to determine their utility. Several monitoring concepts are incorporated into an unusual monitor design; the prototype is described in detail. A comparative study of the effectiveness of several alternate methods of grounding surface mine equipment supports the system currently proposed by MSHA. An instrument design to measure earth voltage gradients is described, as well as an instrument design for measuring the effectiveness of DC haulage current return systems. An extreme analysis is made of techniques for measuring earth resistivity and resistance of safety ground beds. Electrolytic corrosion studies of earth electrodes are reported extensively also. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications ; Final Contract Report
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-300
• NIOSHTIC Number:
  nn:10006669
• NTIS Accession Number:
  PB81-178881
• Citation:
  NTIS#: PB/81-178881 :300 pages
• Federal Fiscal Year:
  1979
• Performing Organization:
  West Virginia University
• Peer Reviewed:
  False
• Source Full Name:
  NTIS#: PB/81-178881
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:16d3173a41dd5fb9f9b658b566026b0f2e022b0528d70558183978f024cd44409333e96f991bf9142d612f0d71c787926df56a8cef2bd4f8f0cc841abb34cea2
• Download URL:
  https://stacks.cdc.gov/view/cdc/235125/cdc_235125_DS1.pdf
• File Type:
  [PDF - 9.40 MB ]