NFPA 70E 2021: Establishing an Electrically Safe Work Condition Exam Questions & Answers
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Course
NFPA 70E 2021: Establishing an Electrically Safe
Institution
NFPA 70E 2021: Establishing An Electrically Safe
Electrically Safe Work Condition - SOLVED ANSWER-When the conductors or circuit parts:
-Have been disconnected, locked out or tagged out, verified to have been disconnected, temporarily grounded
An electrically safe work condition needed:
-If an employee is going to be within the limited appr...
NFPA 70E 2021: Establishing an
Electrically Safe Work Condition Exam
Questions & Answers
Electrically Safe Work Condition - SOLVED ANSWER-When the conductors or circuit
parts:
-Have been disconnected, locked out or tagged out, verified to have been disconnected,
temporarily grounded
An electrically safe work condition needed:
-If an employee is going to be within the limited approach boundary
-If an employee is interacting with the equipment in a manner that poses an increased
likelihood of injury from an arc flash hazard
Hazard elimination is the most effective way to safeguard employees from exposure to
electrical hazards.
Process for Establishing an Electrically Safe Work Condition - SOLVED ANSWER-1.
Identify all sources of power
2. Interrupt load and open disconnects
3.Visually verify that contacts are open, if possible
4. Release or block stored energy
5. Apply lockout/tagout devices and procedures
6. Test for absence of voltage
Release or Block Stored Energy - SOLVED ANSWER-Electrical energy may be stored
in capacitors or other electrical components.
Mechanical Energy that could re-energize the system must be released. Springs must
be released or physical restraint must be applied when necessary to immobilize
mechanical equipment.
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