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2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety Related Maintenance and Special Equipment Exam with Correct Answers.$13.49
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2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety Related Maintenance and Special Equipment Exam with Correct Answers.
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2024 NFPA 70E, Energized Work and Risk Assessment
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2024 NFPA 70E, Energized Work And Risk Assessment
2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety Related Maintenance and Special Equipment Exam with Correct Answers.
2024 NFPA 70E, Energized Work and
Risk Assessment & Mitigating Risks &
PPE Requirements & Safety Related
Maintenance and Special Equipment
Exam with Correct Answers
Performing Energized Work - correct answer --Infeasibility, troubleshooting equipment malfunctions,
taking voltage measurements, de-energizing poses additional hazard, equipment is in normal operating
condition, equipment operates at a voltage under 50 volts
Energized Electrical Work Permits - correct answer --Energized electrical work permits must be
completed any time an employee will perform work within the restricted approach boundary.
- Who is requesting the work?, who is performing the work?, who is authorizing the work?
When is a Permit Not Required - correct answer --Tasks that pose little risk, tasks that are justified
-A qualified person using safe work practices and PPE is required for any justified energized work
-Estimate likelihood of occurrence of injury or damage to health
-Potential severity of injury or damage to health, determine if additional protective measures are
required
Approach Boundaries for Shock Protection - correct answer --Limited approach boundary is a distance at
which a shock hazard exists.
-Restricted approach boundary is a distance at which there is an increased likelihood of electric shock.
Limited Approach Boundary - correct answer --No qualified persons may cross the limited approach
boundary
-Exceptions: permit unqualified to cross the limited approach boundary
-Limited Approach Boundary Table:
2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety
Related Maintenance and Special Equipment
, 130.4(E)(a)
Restricted Approach Boundary - correct answer --The employee is insulated or guarded from the
energized circuit parts
-Energized conductors or parts are insulated from the person and other conductive objects at a different
potential
Arc Flash Risk Assessment - correct answer --Identify if an arc flash hazard exists, estimate the level of
risk the employee, determine if additional protective measures are required
Arc Flash Variables - correct answer --Lack of maintenance, larger and smaller amounts of available fault
current , larger amounts of available fault current
Arc energy inside an enclosure can create extreme pressures. Proven equipment designs and practices
that may be used include:
-Arc resistant switch gear, remote racking, high resistance grounding
-The available fault current, the clearing time of the overcurrent protective device that will clear the
fault in the event one occurs.
Over Variables:
-System voltage, arcing time, distance from act to person, available bolted-fault current, arcing current
Arcing Flash and Arc Blast - correct answer -Arcing Fault:
-Ionizes the air around energized circuit parts so air itself becomes a conductor, results in a lower level
of current flowing, could increase the clearing time of the OCPD
2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety
Related Maintenance and Special Equipment
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