Section 27-2038. Electric lighting fixtures in certain public parts of dwellings; fixtures and lights required

a. In every  multiple  dwelling  and   tenant-occupied  two-family  dwelling,  the  owner  shall  provide
  electric lighting fixtures for every public hall, stair, fire stair  and
  fire   tower   on   every   floor,  in  accordance  with  the  following
  requirements:
    (1) If an incandescent lighting  fixture  is  provided,  it  shall  be
  capable  of providing illumination of at least ten watts per twenty-five
  square feet of floor area or fraction  thereof.  Each  lighting  fixture
  shall  be  provided  with one or more lights of a total of not less than
  sixty watts. Where, under this requirement,  the  number  of  watts  per
  fixture  would exceed one hundred, one or more additional fixtures shall
  be provided and shall be located as may be prescribed by the department,
  except where the distance from the fixture to the farthest  intersecting
  wall does not exceed twenty feet.
    (2) If a fluorescent lighting fixture is provided, it shall be capable
  of  providing illumination of at least four watts cool white fluorescent
  light per twenty-five square feet of floor  area  or  fraction  thereof.
  Each  lighting  fixture  shall  be provided with one or more lights of a
  total of not less than twenty watts. Where, under this requirement,  the
  number  of  watts per fixture would exceed forty, one or more additional
  fixtures shall be provided and shall be located as may be prescribed  by
  the  department,  except  where  the  distance  from  the fixture to the
  farthest intersecting wall does not exceed twenty feet.
    (3) In every multiple dwelling hereafter erected, in addition to other
  lighting  requirements,  a  sufficient   number   of   incandescent   or
  fluorescent  fixtures  shall  be  provided  so that the distance between
  fixtures is not more than thirty feet and so that no wall is  more  than
  fifteen feet distant from a fixture.
    b.  The  department  may  approve  electric lighting for public halls,
  stairs, fire stairs and fire towers  other  than  the  incandescent  and
  fluorescent  lighting  required in subdivision a of this section if such
  other method of electric lighting provides equivalent illumination,  and
  meets the requirements of the electrical code.
    c.   Notwithstanding  any  other  requirement  of  this  section,  the
  department may  require  fixtures  to  be  so  located,  and  additional
  fixtures  to  be  installed, in order to assure that every part of every
  public hall, stair, fire stair or fire tower is adequately lighted.