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Request for assistance in preventing electrocutions of crane operators and crew members working near overhead power lines
  • Published Date:
    May 1995
  • Source:
    NIOSH alert
  • Language:
    English
Filetype[PDF-13.08 MB]


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Request for assistance in preventing electrocutions of crane operators and crew members working near overhead power lines
Details:
  • Corporate Authors:
    National Institute for Occupational Safety and Health.
  • Description:
    DHHS publication ; no. (NIOSH) 95-108

    In this alert, NIOSH warned that crane operators and crew members may be electrocuted when working near overhead power lines. Five cases were described which resulted in six electrocutions. Case 1 involved a 29 year old who pushed the crane cable on a 1 yard cement bucket into a 7,200 volt power line. Case 2 involved a 33 year old well driller who was electrocuted when a metal pipe lifted by a truck mounted crane contacted a 12,000 volt overhead power line. The third case involved a 24 year old foreman for a telecommunications company who was electrocuted when he grabbed the door handle of a truck mounted crane whose boom was in contact with a 7,200 volt overhead power line. Case 4 involved a 37 year old construction laborer electrocuted while pulling a wire rope attached to a crane cable toward a load. The fifth case involved a 20 year old male truck driver and his 70 year old male employer who were electrocuted when the boom of a truck mounted crane contacted a 7,200 volt conductor of an overhead power line. Recommendations were made to train workers to comply with current regulations, to ensure that overhead power lines are deenergized or separated from the crane and its load, to designate a person to observe the clearance and give immediate warning when the crane approaches the limits of safe clearance, and not to use cage type boom guards, insulating links or proximity warning devices as a substitute for deenergizing and grounding lines or maintaining safe clearance.

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