Special Occupancies Flashcards

Branch circuits serving patient care spaces must have the equipment grounding provided by which method?

Answer: An insulated copper equipment grounding conductor plus a metal wiring method qualifying as an EGC

NEC 517.13 requires redundant grounding: a metal wiring method qualifying as an EGC plus an insulated copper EGC.

What is the minimum number of receptacles required at each patient bed location in a critical care (Category 1) space?

Answer: 14

NEC 517.19(B)(1) requires at least 14 receptacles at each critical care patient bed location.

What is the minimum number of receptacles required at each patient bed location in a general care (Category 2) space?

Answer: 8

NEC 517.18(B)(1) requires a minimum of eight receptacles at each general care patient bed location.

The essential electrical system of a hospital is divided into which three branches?

Answer: Life safety, critical, and equipment

NEC 517.30 divides the hospital essential electrical system into the life safety, critical, and equipment branches.

After loss of normal power, the life safety and critical branches of a hospital essential electrical system must be restored within what time?

Answer: 10 seconds

NEC 517.31 and NFPA 99 require these branches to be energized within 10 seconds.

In a wet procedure location where interruption of power can be tolerated, what protection may be used for personnel?

Answer: GFCI protection

NEC 517.20(A) allows GFCI protection where interruption is tolerable and requires an isolated power system where it is not.

Article 518 applies to places of assembly designed or intended for gathering at least how many persons?

Answer: 100

NEC 518.1 covers buildings or portions designed for the assembly of 100 or more persons.