Section 27-381
§ 27-381 Requirements. Corridors and exits shall be provided with
artificial lighting facilities, except as otherwise permitted by the
provisions of subchapter twelve of this chapter, in accordance with the
following:
(a) Illumination of at least two foot candles measured at the floor
level shall be maintained continuously, during occupancy, in exits and
their access facilities for their full length, at changes in direction
in and intersections of corridors, balconies, exit passageways, stairs,
ramps, escalators, bridges, tunnels, landings, and platforms, and as
provided in subchapter eight of this chapter for places of assembly,
except that this requirement shall not apply to dwelling units.
(b) In buildings classified in occupancy groups B-1 and B-2, exit
lighting need only be maintained when a section of floor is occupied.
(c) Illumination shall be so arranged that the failure of any one
light shall not leave any area in darkness.
(d) Phosphorescent materials shall not be used as a method of
providing illumination, nor shall battery operated electric lights or
portable lamps or lanterns be used as primary sources of lighting.
(e) (1) Buildings and existing buildings containing an F-4 place of
assembly with an occupant load of three hundred or more persons shall
install emergency lighting in each vertical exit serving the floor on
which the place of assembly is located so as to provide a continuously
lighted passage to the exterior of the building. Such lighting shall be
connected to an emergency power source or to storage battery equipment
meeting the requirements of the commissioner.
(2) Existing buildings required to comply with this subdivision shall
install the emergency lighting on or before April first, nineteen
hundred eighty-seven.
Section 27-382
§ 27-382 Power source. (a) Where a total of more than four lights is
required, exit lighting shall be connected to an emergency power source
or to storage battery equipment meeting the requirements of the
commissioner, provided, however, that in existing buildings, the exit
lighting may be on circuits that are separate from the general lighting
and power circuits, taken off ahead of the main switch.
(b) Existing high rise buildings classified in occupancy group C, D or
H and existing buildings classified in occupancy group E, G or J-1
(except for "residential hotels," as such term is defined by the
commissioner pursuant to rules and regulations) shall comply with the
requirements of this section on or before April first, nineteen hundred
eighty-seven.