What is arc flash? - SOLVED ANSWER-Arc flash is the visual electrical light and heat that occur during an arc fault
What's the minimum voltage at which serious electric shock can occur? - SOLVED ANSWER-50 volts
What determines the severity of injury in arc flash? - SOLVED ANSWER-The available...
What is arc flash? - SOLVED ANSWER-Arc flash is the visual electrical light and heat
that occur during an arc fault
What's the minimum voltage at which serious electric shock can occur? - SOLVED
ANSWER-50 volts
What determines the severity of injury in arc flash? - SOLVED ANSWER-The available
current and duration of the arc flash
What injuries are associated with electric shock? - SOLVED ANSWER-A. Electrocution
B. Suffocation
C. Tissue and organ damage
D. All of the above - Correct Answer
How are arc flash and electric shock protection boundaries determined? - SOLVED
ANSWER-Qualified workers use NFPA 70E boundary tables or the employer's safe
work practices tables to determine arc flash and shock protection boundaries.
What is an arc flash protection boundary? - SOLVED ANSWER-The distance from
energized equipment at which a worker, unprotected by proper PPE, would sustain
burns less than those from a mild sunburn
What constitutes an "electrically safe condition"? - SOLVED ANSWER-Equipment is
locked and tagged in a de-energized position and then tested to ensure there is no
stored or protentional energy
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