Article 6 - EXIT LIGHTING

Section 27-381

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

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.