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Technical Bulletin Pager Phones - Circuit Protection; Technical Bulletin Pager Phones
  • Published Date:
    1/1/1975
Filetype[PDF - 207.46 KB]


Details:
  • Description:
    Wires leading to or from underground facilities can develop hazardous voltages because of lightning exposure. The locations of many mine portals are particularly susceptible to lightning effects. The application of protective devices to limit this potential danger is necessary.

  • Supporting Files:
    No Additional Files