(A)   In order to comply with this subchapter, only ionization or photo electric type detectors shall be installed.
   (B)   Smoke detectors shall be approved by a nationally-recognized testing laboratory.  The smoke detector itself shall be labeled, not only the cord.
   (C)   Smoke detectors with power supplies other than a hard-wire AC primary power source may be powered by self-monitored batteries or operated from an electrical outlet which is fitted with a plug-restraining device, providing that the outlet is not controlled by any switch other than the main power supply.
   (D)   Smoke detectors shall be placed in accordance with applicable National Fire Prevention Association Standards.  Detectors may be ceiling- or wall-mounted, providing that if wall-mounted they shall be within 12 inches, but not closer than six inches, of the ceiling.
   (E)   In a dwelling unit which contains a well- defined sleeping room separated from the other activity areas of the same unit, the detectors shall be located in the corridors within the unit or interior area giving access to the rooms used for sleeping purposes.  Where sleeping areas are separated and/or where a single smoke detector will not adequately service all sleeping areas, there shall be a smoke detector installed adjacent to each sleeping area.
   (F)   In a rooming unit the smoke detector shall be centrally located on the ceiling.
   (G)   In a dwelling containing two or more dwelling units or any rooming unit, in addition to the requirements for individual smoke detectors in each dwelling unit or rooming unit, detectors shall be placed in centrally-located common areas so that smoke detectors will adequately service all sleeping areas.
('86 Code, § 5-103) (Ord. 81-3479, passed 11-9-81)