Equipment & SystemsQuestion 354 of 521
How must emergency unit equipment (self-contained battery luminaires) be supplied?
a.Fed from any random branch circuit
b.Kept portable and unplugged when not in use
c.Fed only from the standby generator
d.Permanently fixed and, for unit equipment, supplied from the same branch circuit as the normal area lighting, connected ahead of any local switch
Explanation
Section 700.12 requires emergency unit equipment to be permanently fixed in place and supplied from the branch circuit serving the normal lighting in the same area, connected ahead of any local switches. This ensures the battery unit sees a loss of normal power the moment lighting in that space is lost.
Law Reference: 2023 NEC §700.12Practice all 521 questions free — no signup required.
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