100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety Related Maintenance and Special Equipment Exam with Correct Answers.$13.49
Add to cart
2024 NFPA 70E, Energized Work and Risk Assessment & Mitigating Risks & PPE Requirements & Safety Related Maintenance and Special Equipment Exam with Correct Answers.
5 views 0 purchase
Course
2024 NFPA 70E, Energized Work and Risk Assessment
Institution
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Lectphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
