Laserfiche WebLink
310.9.1 Saolce detectors. � <br /> 3I0.9.I.I . General.Dwelling units,•cong:egaza zesidences and hote�or Iodgi.ng hoLse guest <br /> � raarns'that are used for sleeping purposes shall be provided with snolce.detectors.Detectors s�all <br /> installed iz accordance ti�zth the approved nane:facture�s instructions. <br /> 3I0.9.I.2 Additions, alterations or repairs to Group R Occupancies.When the vasuation of an <br /> addition,alteratzon or=epair to a Group R Occupancy exceeds $I,000 and a permit is required, or <br /> svhen oneor more sleepina rooms are added'or�eated in existin8 Group R.Qccupancies, smo�e <br /> detectorsshalibe installed in accord.ance�vith Sections 3I0.9.I.3,310.9.I.4 and 3I0.9.I.5 0:t,:^.is <br /> section. <br /> �XCEPTION:Repairs'to the exterior surfaces of a Group R Occupancy are exempt from t'r.e rE <br /> ments of ttus section. . <br /> 3I0.9.I•3 Potivez source.7n new construction,required smolcc detectors shn11 zeceive the:u pri- <br /> �ary potiver�om the buildina ti3rising when such tivuing is served from a cvmmercial sovsce and <br /> shall be equipped with a battery bacicup.The d�tector shall emit a signal when the batteries are. <br /> �rYi-ing shaIl be permanent and tivithout a d.isco:uiecting switch other than those required fo:ove <br /> current protectzon. Smolce detectors may be solely battery operated when installed in existina <br /> � buiidings; or in build.ings�vithout commercial potiver; or in buildings tivhich undergo alterations, <br /> ,repairs or additio:s regulated by Section 3I0.9.1.2. <br /> 3I0.9.I.4 x.acation tivxthir� dwelling units.7n dwell.ing units, a detector sha]J.be installed in ea <br /> sleepino raom and at a po'int centrally located in the corridor or area giving access to each s QpaT <br /> sleeping area.W hen the dvrelling unit has moze tnan one story and;..-z utiVz�gs :::.h .,as-••---•- <br /> detector shall be instaIled on each story and in the basenzent. Y.n dtivelling uzuts tivhere a story oz <br /> ment is spli�into two or znore Ievels,the smo;ce detector shall be installed on the upper Ievel, e: <br /> that tivhen the�.otiver Ievel contains a sleeping area, a detector s�►a11 be insta.11ed on each Ievel.V4 <br /> sleeping xooms are on an upper level, the detector shall be placed at the ceiling of the upper Ie�� <br /> close proximity ta the stainvay.In dwelli.ng units tivhere the ce'iling height of a room open to th <br /> halhvay servisig the bedrooms exceeds that o;the hallway by 24 inches (610 mrn) or znore, smo <br /> decectors shall be installed in the hall�vay and in the adjacent room.lJetectors sha]J,sound an� <br /> audible in a]1 sleeping areas of the d�velling unit in tivhich they are located. <br /> , � <br />