Report of Investigations 9416: Influence of Electrode Material on Spark Ignition Probability

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9416
• Personal Author:
  Peterson, Jeffrey S.
• Description:
  The testing procedures of the U.S. Mine Safety and Health Administration specify that intrinsic safety acceptance tests be conducted using a standard tungsten-cadmium electrode configuration in the breakflash apparatus. However, in realistic mining environments, other materials may be more likely sources of sparking. Information defining the probability of spark ignition between common materials such as aluminum, brass, copper, lead, tin, cold-rolled steel, and stainless steel is of more practical value in determining ignition hazards. The U.S. Bureau of Mines has completed an investigation of the influence of material on the ignition probability using the breakflash apparatus. By comparing ignition currents or ignition voltages corresponding to a probability of one ignition per thousand sparks to those found previously for cadmium, a margin of safety may be estimated for each material. This report presents the results of an investigation into the influence of disk electrode material on the probability of ignition. [Description provided by NIOSH]
• Subjects:
  Explosions Explosive Agents Mining Occupational Health Safety
• Keywords:
  Mining-industry; Mining-equipment; Safety-engineering; Safety-research; Explosive-hazards; Explosive-devices; Explosion-prevention
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9416, 1992 Jan; :1-19
• Series:
  Mining Publications   ; NIOSH Numbered Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  24 pdf pages
• NIOSHTIC Number:
  nn:10011241
• NTIS Accession Number:
  PB92-206929
• Contact Point Address:
  Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
• CAS Registry Number:
  Cadmium (CAS RN 7440-43-9) ; Copper (CAS RN 7440-50-8) ; Lead (CAS RN 7439-92-1) ; Tin (CAS RN 7440-31-5)
• Federal Fiscal Year:
  1992
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:deca5ff7effce11760ef417a17ac6c6592771a2dde627d768ab5b1aff16bd82aed1c7d1f7f9e0fb4e51c79894d337660476fb779a57587c924e173029e2189f1
• Download URL:
  https://stacks.cdc.gov/view/cdc/9571/cdc_9571_DS1.pdf
• File Type:
  [PDF - 2.61 MB ]