HomeMy WebLinkAboutsmoke detector info 310.9.1 Sr.n.ake detectors.
3Z0.9.I.I General.lJu•elling units,•cong:caat:residences and hoeel or Iodging house guest
rooms'that are used for sleeping purposes slzall be provided i,tizth snolce.de�ectors. Detectors shal
insulled i.-1 accord.ance`�zth the approved nan�:.facture�s instzuctions.
3I0.9.1.2 Add.itions, alterations or repairs to Group R Occupancies.�rYhen the ti•aluation of an
addicion,alteratzon or repair to a Group R Occezpanry exceeds $I,000 and a permit is zequized, oz
tivhe-n oneor more sleepina roozas are added�o:created in existin$ Group R Qccupancies, smo!�e
detectorsshall be installed in accordance tir-ith Sections 3I0.9.I.3, 3I Q.9.I.4 and 3I0.9.I.5 of this
s ection.
FXCEP"ZZON: Repairs'to the exterior surfaces of a Group R Occupancy are exemp�from the r
ments of this section. .
g Ip,g,1,3 �'otiver source. 7n new constncction, reqv.i.red smolce detectors sh�11. receive the:u pri-
mary potiver from the bu.ildi.ng wiring when such��rising is served from a cornmercial souzce and
shall be equipped with a battery bacicup. The d��ector shall emit a signal when the batteries are
�rYi-ing shall be permanent and tivithout a disco:inecting switeh other than those required for ov
current protection. Smolce detectors may be solely battery operated when installed in existing
besild.ings; or zn buildings tivithou.t cor,unercial potiver; or in buildings tivhzch undergo alterations
,repairs or addicio:s regulated by Section 3I0.9.1.2.
3I0.9.I.4 x.ocation tivithi.n dwe].li.ng uni.ts. Tn dwe]J.ing unzts, a detector sha7J.be installed in e�
sleeping zoom and at a point centrally located in the corridor or area giving access to each sepz
sleeping area.tiYhen the dwelLir►g unit has no:e tnan one story anu:..-1 utiVz'�as :;:.'�bas-:=�=`
detector shall.be i.nstalled on each story and in the basement. 7n d�velling unzts tivhere a story c
ment is spli�i.nto two or moze Ievels, the smo:ce detector sha11 be installed on the upper Ievel, e
tha[�vhen the Io�ver Ievel contains a sleeping area, a detector shaII be i.nstalled on each Ievel.�
sleeping xooms are on an upper level, the de:ector shall be placed at the ceiling^of the upper Ie�
close proximzty to the staiz-tivay, In dwe7.li.ng unzts tivheze the ceiling height of a xoom operi to t�
Izalhvay servizzg the bedrooms exceeds that o;the haIlway by 24 inches (610 znrn) or znore, sm�
deGectors shall be installed i.n the halltivay and in the adjacent room. De[ectors shali sound an
audible in all sleeping areas of the dtivelling unit in tivhich they are Iocated.