Special Occupancies Flashcards
7 cards from real E2 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Special Occupancies flashcards as text
Under NEC Article 517, the Essential Electrical System (EES) in a hospital must be divided into which branches?
Answer: Life Safety, Critical, and Equipment branches
NEC 517.30 divides the hospital EES into the Life Safety Branch, Critical Branch, and Equipment Branch to ensure prioritized power during outages.
In a patient care vicinity of a general care area per NEC Article 517, the minimum number of receptacles required at each patient bed location is:
Answer: At least two duplex receptacles, with at least one from the emergency system
NEC 517.18 requires at least two duplex receptacles at each patient bed location in general care areas, with at least one from the emergency system.
NEC Article 518 applies to places of assembly. Which of the following occupancies requires compliance with Article 518?
Answer: A gymnasium designed for 200 or more persons
NEC 518.1 applies to buildings or portions used for gatherings of 100 or more persons; a gymnasium for 200 persons clearly qualifies.
Under NEC Article 520 governing theaters, the dimmer system conductors in the stage switchboard area must be protected against:
Answer: Both overcurrent and short circuit using listed theatrical equipment
NEC 520.25 requires that dimmer system conductors and controls use listed theatrical dimming equipment providing both overcurrent and short circuit protection.
In a health care facility's critical care area, a ground fault circuit interrupter (GFCI) is generally NOT used on receptacles because:
Answer: GFCI nuisance tripping could interrupt power to life-critical equipment
NEC 517.20 allows isolated power systems or GFCI protection in wet procedure locations, but GFCI nuisance tripping on critical care equipment is a life-safety concern.
Under NEC 517.13, branch circuits serving patient care vicinities must have an equipment grounding conductor that is:
Answer: An insulated copper conductor run with the circuit conductors
NEC 517.13 requires an insulated copper equipment grounding conductor run with the circuit conductors in patient care vicinities, not relying solely on the raceway.
Which NEC article covers electrical installations for carnivals, circuses, fairs, and similar events?
Answer: Article 525
NEC Article 525 specifically covers portable wiring and equipment for carnivals, circuses, fairs, and similar traveling attractions.