77 Ill. Adm. Code 330.3180
Electrical
Section 330
Section 330.3180 Electrical
a) All electric wiring and equipment shall comply with the latest
revisions of the National Electric Code. (A, B)
b) Each facility shall provide sufficient and satisfactory
artificial lighting and power to meet all the requirements and demands of the
building.
c) Emergency Electrical Service
1) An emergency electrical service, which may be battery operated
if effective for four or more hours, shall provide service as follows: (B)
A) Illumination for means of egress.
B) Illumination of exit signs and exit directional signs.
C) Fire alarm system.
D) Telephone service.
2) The emergency electrical service shall be in accordance with
the National Fire Protection Association Codes.