A 35 year-old apprentice lineman was electrocuted and a journeyman lineman received a flash burn when a 7620-volt energized power supply line contacted the case of an underground pad-mounted transformer. The victim was in contact with the transformer casing, and may have also been in contact with a nearby chain-link fence, when the journeyman lineman pulled the terminal from the transformer. The terminal end broke apart, the co-worker lost control of the line, and it contacted the transformer casing. The workers believed they had de-energized the unit and supply line prior to working on this unit. The MO FACE investigator concluded that in order to prevent future similar occurrences employers should: 1. ensure that linemen follow established safe-work procedures to de-energize, ground, and verify through testing prior to beginning maintenance and repair operations on electrical transmission lines and equipment. 2. ensure that prior to any work on an electrical system, all involved workers are familiar with the operation of every electrical component. 3. employees who work around electrical transmission lines, electrical circuits, and electrical equipment should be trained in cardiopulmonary resuscitation (CPR). 4. develop, implement and enforce a comprehensive safety program that includes, but is not limited to, training in hazard recognition and avoidance.
Accident-analysis; Accident-potential; Accident-prevention; Accidents; Electric-power-transmission-lines; Electric-properties; Electrical-charge; Electrical-conductivity; Electrical-equipment; Electrical-hazards; Electrical-industry; Electrical-properties; Electrical-safety; Electrical-systems; Electrical-workers; Electricity; Electrocutions; Injuries; Injury-prevention; Safety-education; Safety-practices; Safety-programs; Traumatic-injuries; Region-7