15-16-140 Automatic fire detectors, where required.

   In every fire alarm system required in this Code, automatic fire detectors shall be installed as an integral part of a fire alarm system in rooms or portions of the building as follows:

   (a)   In every attic and in all rooms where flammable compressed gas or flammable liquid as described in Chapters 15-24 and 15-26 other than fuel oil for heating is stored or used; also in shops and storerooms where combustible material is stored or handled.

   (b)   In every building used in part as an institutional building, school, hotel, or single-room occupancy an automatic fire detector shall be installed in such portion or portions of the building used for purposes other than institutional, school, hotel, or single-room occupancy purposes, unless such institutional building, school, hotel, or single-room occupancy is separated from all other occupancies by a separation with a fire-resistive value as specified in Section 13-56-280. Such automatic fire detectors shall be installed, spaced and located in accordance with the recommendations, based upon actual tests, prescribed by a nationally recognized testing laboratory acceptable to the fire commissioner.

   (c)   In every storeroom, maintenance shop, fan room, mechanical equipment room, laundry, linen room, janitor closet, kitchen, storage area and dwelling unit of a dormitory of two or more stories in height. The automatic detectors provided in the dwelling units of dormitories shall be rate-of-rise type heat detectors with a smoke detector also installed in each unit in conformity with Sections 13-64-130 and 15-16-1370 of this Code.

   (d)   Fire alarm systems serving Type III schools, day care centers Class II, and those Type I schools operating as or containing a day care center Class I as defined in Section 13-4-010 shall include automatic detectors as follows:

      1.   Smoke detectors shall be installed at each floor level, including basements, of each interior stairwell up to and including one level above the level of the school or day care center, except in unoccupied attics.

      2.   Smoke detectors shall be installed in front of doors to stairwells from the school or day care center and at intervals of no less than 30 feet in all corridors within or serving the school or day care center.

      3.   Smoke detectors shall be located in all lounges, recreation areas and sleeping rooms.

      4.   Heat detectors shall be installed in boiler rooms, kitchens and combustible storage areas except where a sprinkler system with a flow alarm connected to the fire alarm system is installed in such rooms.

   (e)   In all two-story buildings occupied as open plan schools (a story located below grade level shall be counted, if used for other than building service purposes), approved automatic fire detectors shall be installed throughout the building and be interconnected to the school fire alarm system.

   (f)   In hotel buildings over four stories not equipped with an approved system of automatic sprinklers, electrical equipment rooms, guestroom corridors and elevator lobbies shall be equipped with automatic smoke detectors installed in accordance with NFPA 72-2013.

   (g)   In single-room occupancy buildings, automatic heat detectors shall be installed in each single-room occupancy unit, in public corridors, and at each floor level in every interior stairwell. In single- room occupancy buildings, smoke detectors required by Section 13-196-100 of this Code need not be connected to the fire alarm system, but shall be permanently connected to the electrical wiring of the building.

   (h)   In every new and existing public utility structure as defined in Section 13-96-1080, smoke detectors shall be installed in all rooms and spaces containing any electric power or communication transformers, switches, capacitors, control panels, cables, cable racks or equipment racks. The smoke detectors shall be installed in accordance with the provisions of NFPA 72-2013, except that detector locations may vary from NFPA requirements when live electrical equipment would endanger personnel installing or maintaining detectors.

   (i)   Fire detectors shall be provided throughout every telephone exchange in accordance with NFPA 72-2013. Two different types of fire detectors shall be included in each alarm zone in buildings exceeding 1,600 square feet.

(Prior code § 64-13; Amend Coun. J. 9-8-86, p. 33588; Amend Coun. J. 6-27-90, p. 17610; Amend Coun. J. 8-4-93, p. 36644; Amend Coun. J. 5-4-94, p. 49750; Amend Coun. J. 11-2-94, p. 58476; Amend Coun. J. 5-9-12, p. 27485, § 185; Amend Coun. J. 5-18-16, p. 24131, § 115; Amend Coun. J. 11-9-16, p. 36266, § 31; Amend Coun. J. 9-6-17, p. 55278, Art. VII, § 19)