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<br />2-3.!J Primary I'owct. Supply
<br />
<br />11l)IISUIlII,11 HIlF IVi\IlNIN(; Fl!lrll'~1I-,NI
<br />
<br />Monitot'ed nallery.
<br />
<br />,", Oil' N H',\ 71 "'H".:I:\I
<br />
<br />2-3.3.1 Ilouseho/d fire walning equiplne'lI shall 'I(' pn-
<br />Inilled 10 he powen:d hy a ballery. provided Ihal III(' bal-
<br />lelY i,~ Inouilored 10 ensure Ihat Ihe (()lIowing (ondilions
<br />'ue nl('l:
<br />
<br />I FlOIII NFI',\ 7.\ - I !lH!l. :1-:1.11
<br />
<br />(a) All powel reqnircnwnls are mel '(JI- al leasl I year's
<br />lili.:, induding Inont bly tesl illg.
<br />11'1011I N 1'1'/\ 7., - 1 !IIl!I. :1-:1.1 (a) 1lI0dified,
<br />
<br />(h) i\ dislilll:live audihle tronble sigllal is gin'n bd(JlT
<br />Ibe ballery is incapable 01' opnaling (1'10111 aging. tnmillal
<br />corrosioll. l'le) the devin:(s) Ii", alanll pnrl'osl',~.
<br />I h,"" NFl''' 7'1 - 1 !IH!I, :1_:1_1 (")1
<br />
<br />(l:) For a unit employillg a lock-in alarm "-'a'nre. aUlolllalic
<br />ITallslcl- is provided (iOlIl a/anll 10;1 Iroublt, IOlldilion.
<br />[1'1011I NFl''' 7.1 - I!IH!I, :1-:1.1(1)1
<br />
<br />(d) The nnil is capable 01' prodncing an alanll signal Ii",
<br />at leasl 'I lIIinnles ;11 II... balll'lY ",)\rage al which a II'on"I,.
<br />signal is nonnally o"lained. lolloll'('d by nol '('ss Ihall 7
<br />days 01' I rouhle sigllal opel-al ion.
<br />IF.."" NFl''' 7., - I!IH'I. :I-:I.l(dll
<br />
<br />(e) The audible trouble sigllal is produced al least OUce
<br />every minute f(n 7 consecutive days.
<br />11'1011I NFl''' 71 - I !/Il!l. :1-:1.1 (ell
<br />
<br />(I) i\cceplable replacemenl ball cries are clearly idenli-
<br />lied by IlIanul;tcturer's(s') lIame alld model IIInllber(s) Oil
<br />Ihe Ullil IIear the ballery Ullllpartmel1t.
<br />I Fro III NFl''' 7.1 - I!IH!l. :1_:1.1 (1)/
<br />
<br />(g) I~ I eadily 1101 iceable visibll' indicat iOll shall be dis-
<br />played \;'hell a primary hattny is removed Ii-om Ihe ullit.
<br />[1'1011I NFI'^ 74 - 1!lIl!l, :I-:I.l(g)1
<br />
<br />(h) Any unil that uses a non rechargeable ballery as a
<br />primary power supply I hat is capahle 01' a IO-year or
<br />greater servin: lile, illcluding lesling, and IIlcets lhe
<br />requirelnents 01' (b) thrn (e) above, shall nol be reqllircd 10
<br />have a replaceable ball('I}'.
<br />
<br />2-3.4 Secondary (Standby) Power Supply.
<br />
<br />2-3.4.1 Relnoval 01- disulnneclioll 01' a battery usc:d as a
<br />seulIIdary (slalldhy) power SOlin-I' shall calise a dislilll"live
<br />audihle 01' visihle I rouble sigllal.
<br />
<br />2-3.4.2 An:cplable rcplacelllellt halleries shall he dearly
<br />idelllilied by lIIalllll;lI:tllrn's(s') lIallll' alld 1Il0del 1111111-
<br />ber(s) 011 Ihl' IInit lIear Ihe hailer)' COlllpallnll'l1I.
<br />
<br />2-3,4.3 II re'luill'd by 1;lw fi,,- disposalll'asolls. ,echarge-
<br />ahle hatteries shall he relllovahle.
<br />
<br />2-3.4.4 i\lItomalil: rechargillg shall be provided where a
<br />rech;lI-geable ballery is IIsed as lire sen"..laI'Y (stalldby)
<br />sllppl}'. Tire sllpply slrall he capahlt' of opelatillg tire sys-
<br />lem 1(". at least ~4 hOllJ-s ill lire 1I0rmal umdilioll, 1()lIowed
<br />by 1101 less thall 4 minlltes of alarm. Loss or the secolldary
<br />(stalldhy) !lOll In' shall sOlllld all alldihll: 1I'0llble signal al
<br />least Ollce evel-Y IlIillllll>.
<br />
<br />~.... -- -._._,._---------~._.._.
<br />
<br />72-!JI
<br />
<br />2-3.1.4.1 TII(' ballny shall be lI'1'hal'ged Wilhill .. hours ir
<br />I'''WI''' is I'lovidl'd Ii '0 III a dr('lli, I hat 1':t11 be !lwildJ(~d Oil 01-
<br />"II olh", 1110'11 by a lil'Cllil Ineakl.... 01- wilhill 48 Irollrs
<br />whell I""\'('r is pnlVided Ii-olll a dn:llit thai canllol hc'
<br />swild...d 011 or ofl' olher Ihan by a drcuil bt-caker.
<br />
<br />2-3.1.5 \\'hell' alllomatic recharging is 1I0t provided, Ihe
<br />bailer} !lhalJ he II10nilored 10 ellsme that the following
<br />cOlldiliolls are lIlel:
<br />
<br />(a) ^" power rellllirelllelllS;\I e 11I1'1. 1(11' at least I year's Iile.
<br />
<br />(b) A dislilll"live audiblc tronhle signal is given bel()re
<br />Ihe "aller}' Glp;u:ily has been depleted below the level
<br />required 10 prodllce all alarm sigllal 1(1I' 4 minutes.
<br />I New paral;raphs alld lilll~J
<br />
<br />2-3.5 Primary Power - Nonelectrical. A suitable
<br />sprillg-woulld 1I11_'Challism shall provide power Ii:,.. the IIon-
<br />del'l rl'-al pol"tioll or a listed single slatioll deleClor. A visi-
<br />hie illdicalioll shall he provided 10 show Ihat sullidelll
<br />operal i IIg power is 1101 available.
<br />IFrolll NFl''' 71 - I!lH!), :1-111l1llIilil'dl
<br />
<br />2-4 Elluipment Performance.
<br />I Fmlll N FI'A 74 - I !Iii!), Chap. 41
<br />
<br />2-4.1 General. The I;lilllre 01 any lIollreliable or short-
<br />lilc compollelll that rellders the detector inoperable shall
<br />be readily apparclII 10 Ihe ou:upant of the living IIlIit with-
<br />out I he lIeed hlr lesl.
<br />
<br />[l'rom NFP^ 74 - 1989,4-11
<br />
<br />2-4.2 Smoke Detectors.
<br />
<br />[Fmlll NFI'^ 74 - 1989, 4-2J
<br />
<br />2-4.2,1 Each sllloke detector shall detect abnormal (Iuall-
<br />lilies 01 slIloke Ihat lIIay occur in a dwelling, shall properly
<br />operate ill Ihe 1101'111011 ellvirollmental conditions of a
<br />household, alld shall be in compliance with ANSI/UL 268,
<br />SII/ok" /)"t,,('/o/"J fill- Fire Proter.tit/e Signalillg Sy.~ttm.~, or
<br />ANSI/UI. 217, Sil/g/e and MII/tiJ,/e Statio/! Sma/It Detector.l.
<br />11'111I11 N 1''''' 71 . 198!I, 4-2.11
<br />
<br />2-4.3. lIeat Detectors. Em:h heat detectot., including a
<br />h('al dellTlor integrally 1I101llltell 011 a smoke detector,
<br />shall delect a!mormally high temperature or rate-of-
<br />temperallll'e rise, ami all such detectors shall be lisled or
<br />approved /(11' 1I0t less thall !iO-1t (15-m) spacing.
<br />II'mm NFI'^ 74 - 19119, 4-3 modified]
<br />
<br />2-4.3.1 * Fixed-Iemperature detectors shall have a tem-
<br />perature raling at least 2501' (140C) ahove the 1I0rmal ambi-
<br />('111 ICIIII"'ralure alld shall nol cxn'cd 5001' (2HOC) hiJ(her
<br />Ihall Ih(' IIIaxillllllll allticipated amhiellltclllpcral,ure iu the
<br />1'00m Ill' space where installed.
<br />
<br />[Fmlll NFI'A 74 - 19119,4-3.11
<br />
<br />2-4.4 Alarm Signaling Intensity.
<br />[Fmm NFI'A 74 - 1989,4-4 modifiedJ
<br />
<br />2-4,4.1 All alann-sounding appliances shall have a mini.
<br />11I11111 I'alillg 0185 dBA at 10 It (3 m).
<br />
<br />1993 Edll/an
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