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NFPA 70E Definitions Exam Questions With solved Solutions Graded A+
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Arc Flash Hazard - SOLVED ANSWER-A source of possible injury or damage to health associated with the release of energy caused by an electrical arc. Arc Rating - SOLVED ANSWER-The value attributed to materials that describes their performance to exposure to an electrical arc discharge. The arc ra...

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  • August 19, 2024
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  • 2024/2025
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NFPA 70E Definitions Exam Questions
With solved Solutions Graded A+

Arc Flash Hazard - SOLVED ANSWER-A source of possible injury or damage to health
associated with the release of energy caused by an electrical arc.



Arc Rating - SOLVED ANSWER-The value attributed to materials that describes their
performance to exposure to an electrical arc discharge. The arc rating is expressed in
cal/cm2. Arc rating is reported in either ATPV or Ebt.



Barricade - SOLVED ANSWER-A physical obstruction such as tapes, cones, or a frame
type wood or metal structures intended to provide a warning and to limit access.



Barrier - SOLVED ANSWER-A physical obstruction that is intended to prevent contact
with equipment or energized electrical conductors and circuit parts or to prevent
unauthorized access to work area.



De-Energized - SOLVED ANSWER-Free from any electrical connection to a source of
potential difference and from electrical charge



Electrical Hazard - SOLVED ANSWER-A dangerous condition such that contact or
equipment failure can result in electric shock, arc flash burn, thermal burn, or arc blast
injury.



Electrically Safe Work Condition - SOLVED ANSWER-A state in which an electrical
conductor or circuit part has been disconnected from the energized parts, locked/tagged
in accordance with established standards, tested to verify the absence of voltage, and if
necessary, temporarily grounded for personnel protection.



Exposed - SOLVED ANSWER-Capable of being inadvertently touched or approached
nearer than a safe distance by a person. It is applied to electrical conductors or circuit
parts that are not suitably guarded, isolated, or insulated.

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