Electrical Contractor Electrical Codes & Standards Flashcards
6 cards from real Licensed Electrical Contractor practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Electrical Contractor Electrical Codes & Standards flashcards as text
Under the NEC, what is the maximum number of disconnects permitted to serve as the service disconnecting means for a building?
Answer: 6
NEC Section 230.71 limits the number of service disconnects to a maximum of six grouped in one location.
Which NEC article governs the installation of emergency power systems in commercial buildings?
Answer: Article 700
NEC Article 700 covers emergency systems that are legally required and classified as essential for safety to human life.
Per OSHA's electrical safety standards (29 CFR 1926 Subpart K), what is the assured equipment grounding conductor program an alternative to?
Answer: Using GFCIs on construction sites
OSHA 29 CFR 1926.404(b)(1) allows an assured equipment grounding conductor program as an alternative to GFCI protection on construction sites.
According to the NEC, receptacle outlets in dwelling unit bathrooms must be supplied by at least how many 20-ampere branch circuits?
Answer: One dedicated 20A circuit
NEC Section 210.11(C)(3) requires at least one 20-ampere branch circuit to supply bathroom receptacle outlets.
What edition year of the NEC first introduced requirements for arc-fault circuit interrupter (AFCI) protection in dwelling bedrooms?
Answer: 1999
The 1999 edition of the NEC (NFPA 70) first required AFCI protection for bedroom branch circuits in dwelling units.
Per the NEC, what is the standard ampere rating for a household cooking appliance branch circuit when the range is rated 12 kW or less?
Answer: 40 amperes
NEC Section 210.19(A)(3) permits a minimum 40-ampere branch circuit for a household range rated 8¾ kW or more.