NFPA 70E Important Definitions A+ Exam Questions With Detailed Solutions Graded A+
20 views 0 purchase
Course
NFPA 70E Important Definitions
Institution
NFPA 70E Important Definitions
ATPV - SOLVED ANSWER-Arc Thermal Performance Value-The incident energy (cal/cm^2) on a material or a multilayer system of materials that results in a 50 percent probability that sufficient heat transfer through the tested specimen is predicted to cause the onset of a second degree skin burn injury ...
NFPA 70E Important Definitions A+
Exam Questions With Detailed Solutions
Graded A+
ATPV - SOLVED ANSWER-Arc Thermal Performance Value-The incident energy
(cal/cm^2) on a material or a multilayer system of materials that results in a 50 percent
probability that sufficient heat transfer through the tested specimen is predicted to cause
the onset of a second degree skin burn injury based on the Stoll curve (Definition taken
from ASTM F1959/F1959M)
Cal/cm^2 - SOLVED ANSWER-Calories per square centimeter
Electrically Safe Work Condition - SOLVED ANSWER-When the power has been turned
off
Arc Flash Boundary - SOLVED ANSWER-When an arc flash hazard exists, an
approach limit from an arc source at which the incident energy equals 1.2 cal/cm^2
(One second exposure likely causes second degree burn)
Tables 130.7(C)(15)(a) & 130.7(C)(15)(b)
Limited Approach Boundary (120V) - SOLVED ANSWER-Table 130.4 (D)(a) [AC]. 3 ft 6
in
Hierarchy of Risk Control - SOLVED ANSWER-1.Elimination 2.Substitution
3.Engineering controls 4.Awareness 5.Administration controls 6.PPE (See Table F.3 in
NFPA 70E)
Qualified Person - SOLVED ANSWER-One who has demonstrated skills and
knowledge related to the construction and operation of electrical equipment and
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 Vaster. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
