On May 19, 1999, three electricians were injured while doble Testing on a circuit breaker at Hayden Substation in Routt County, Colorado.
Office of Environment, Health, Safety & Security
May 19, 1999
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May 19, 1999
On May 19, 1999, at 10:31 a.m., four Western Area Power Administration (Western) employees were performing Doble testing on a circuit breaker at Hayden Substation in Routt County, Colorado. Three electricians were injured when the high-voltage lead (HVL) of the Doble test set encroached on the minimum approach distance to an energized part outside clearance boundaries, drawing arcing faults.