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Truck driver electrocuted when the discharge chute of a hay grinder contacts 7200 volt power line.

Colorado Department of Public Health and Environment
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, FACE 91CO084, 1991 Sep; :1-2
A 31-year-old truck driver was electrocuted when the discharge chute of the hay grinder he was moving came into contact with a 7200 volt power line. The victim was positioning a truck-mounted hay grinder when the elevated end contacted the overhead service line. The victim was preparing his equipment to grind one-ton bales of hay. The grinder is mounted on a semi-trailer and is equipped with a hydraulically operated discharge chute that can be raised to accommodate various trucks that haul the ground hay. The victim was standing on the ground operating the hydraulic controls for the chute. As he raised the chute to allow clearance for the hauling trucks, the top edge of the chute contacted the power line. The Colorado Department of Health (CDH) investigator concluded that, in order to prevent future similar occurrences, employers should: 1. Survey the work site to identify hazards posed by the locations of overhead electrical lines. All employees should then be informed of the possible hazards. 2. Affix safety signs onto the equipment to warn the user of potential hazards of overhead power lines.
Region-8; Accident-analysis; Accident-prevention; Accidents; Injuries; Injury-prevention; Traumatic-injuries; Work-operations; Work-analysis; Work-areas; Work-performance; Work-practices; Safety-education; Safety-equipment; Safety-measures; Safety-monitoring; Protective-measures; Truck-drivers; Electric-properties; Electrical-hazards; Electrical-safety; Electricity; Electrocutions; Warning-signs
Publication Date
Document Type
Field Studies; Fatality Assessment and Control Evaluation
Funding Type
Cooperative Agreement
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
FACE-91CO084; Cooperative-Agreement-Number-U60-CCU-808518
SIC Code
Source Name
National Institute for Occupational Safety and Health
Performing Organization
Colorado Department of Public Health and Environment
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division