Arc blast occur when the extreme temperatures of the electrical arc cause explosive expansion of both the surrounding _____ and the______ in the arc’s path
A documented system consisting of electrical safety principles, policies, procedures and processes that directs activities appropriate for the risk associated with electrical hazards.
What is an Electrical Safety Program?
They must be rescued as soon as possible to survive.
The amount of current delivered at a point on the system during a short-circuit condition.
What is fault current?
The largest amount of current capable of being delivered at a point on the system during a short circuit condition.
What is available fault current?
The state of the electrical equipment considering the manufacturers’ instructions, manufacturers’ recommendations, and applicable industry codes, standards, and recommended practices.
What is condition of maintenance?
There is no ______available to completely protect electrical workers from the effects of a blast.
The distance between a person’s face and chest area and a prospective arc source.
What is Working Distance?