Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods

Details

• Personal Author:
  Damiano, Nicholas W. ; Whisner B ; Yan L ; Zhou C
• Description:
  The underground mining environment can greatly affect radio signal propagation. Understanding how the earth affects signal propagation is a key to evaluating communications systems used during a mine emergency. One type of communication system is through-the-earth, which can utilize extremely low frequencies (ELF). This paper presents the simulation and measurement results of recent National Institute for Occupational Safety and Health (NIOSH) research aimed at investigating current injection at ELF, and in particular, ground contact impedance. Measurements were taken at an outside surface testing location. The results obtained from modeling and measurement are characterized by electrode impedance, and the voltage received between two distant electrodes. This paper concludes with a discussion of design considerations found to affect low-frequency communication systems utilizing ground rods to inject a current into the earth. [Description provided by NIOSH]
• Subjects:
  Copper Environment Geology Mining Occupational Health Safety Workplace
• Keywords:
  Author Keywords: Grounding Cables Communications Equipment Communication Systems Electrical Grounding Electrical Power Transmission Lines ELF Environmental Factors Extremely Low Frequencies Ground Rods Low-frequency Communications Mining Industry Radio Waves Signal Devices Signaling Systems Sound Propagation Underground Mining Work Environment

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• Series:
  Mining Publications
• ISSN:
  0093-9994
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  53
• Issue:
  5
• NIOSHTIC Number:
  nn:20051889
• Citation:
  IEEE Trans Ind Appl 2017 Sep-Oct; 53(5):5088-5095
• Contact Point Address:
  Nicholas William Damiano, Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, Pittsburgh, PA 15236, USA
• Email:
  NDamiano@cdc.gov
• CAS Registry Number:
  Copper (CAS RN 7440-50-8)
• Federal Fiscal Year:
  2017
• Peer Reviewed:
  True
• Source Full Name:
  IEEE Transactions on Industry Applications
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ba2ae586bdbb6a931d25b3710a253a7f5dc606b32042579e3ac93bbae6d5a5c591fd3bce9ea51099a31f2a2c53da6cfea88d4d0b7136bb5cad573f49da7c6f8b
• Download URL:
  https://stacks.cdc.gov/view/cdc/227691/cdc_227691_DS1.pdf
• File Type:
  [PDF - 859.53 KB ]