NEC General Requirements Flashcards
7 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 7 NEC General Requirements flashcards as text
According to NEC Article 110, what is the minimum headroom required for electrical equipment rated 1200A or more and over 6 feet wide in a dedicated electrical space?
Answer: 6 feet
NEC 110.26(A)(3) requires a minimum headroom of 6 feet for equipment rated 1200A or more and over 6 feet wide.
Under the NEC, which article governs the requirements for conductors entering enclosures to prevent abrasion?
Answer: Article 300
NEC Article 300 covers wiring methods and requires conductors to be protected from abrasion where they enter enclosures.
What does NEC 110.14 primarily address?
Answer: Electrical connections and terminals
NEC 110.14 covers electrical connections, including the requirement that terminals be compatible with the conductors used.
Per NEC 110.3(B), installed electrical equipment must be used:
Answer: In accordance with its listing and labeling instructions
NEC 110.3(B) requires that listed and labeled equipment be installed and used in accordance with the instructions included in the listing or labeling.
Which NEC section requires that interrupting ratings of overcurrent devices be sufficient for the available fault current?
Answer: 110.9
NEC 110.9 requires that equipment intended to interrupt current at fault levels have an interrupting rating sufficient for the nominal circuit voltage and the current available.
According to NEC 110.26(C)(2), what is required for electrical equipment rooms with a door that opens toward the working space?
Answer: The door must be equipped with panic hardware or a listed exit device
NEC 110.26(C)(2) requires that doors opening into a working space be equipped with panic hardware or listed exit devices for personnel doors.
What NEC requirement applies to conductors of different systems occupying the same raceway?
Answer: All conductors must have insulation rated for the highest voltage present
NEC 300.3(C)(1) requires that conductors of different systems in the same raceway all have insulation rated for the highest voltage present.