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IICll'SI',ll(ll,IlII11I': Wi\I(NINI; I'I)I'II'~II'.NI 2-3.3 Primary POW(~I' Supply MOlliton'd lIa It f'ry . /1'11I111 NI'I',\ 71 I'IH'I.:\:II 2-3.3,1 Ilousehold fire lI'arnill~ equiplllelll shall he per- lIIilled 10 he powned hy a hallen'. I"m'idl'd Ihal Ihe hal- lery i,~ 1I10llilored 10 ellsure thai Ihe lollowiuK cOllditious are IlIel: 11'111111 N 1'1'1\ 7.1 - I !IH!I. :1-:'-11 (a) All power requirellH'lIls al'(: IIlcl li,r al Icasl I year's lifl:, illdlldillK 1II0UI hly Icsl ill~. 11''-011I N F1'I\ 7,1 - I !IH!I. :1-:1, I (a) IlIodif;l.d I (h) i\ dislilluive audihle IlOuhle sigual is giveu II('f(lI'e Ihe halllTY is illcapahle of opl'ralillg (flOlII aKill~. lenllillal UIITOSiOIl. CtL) I'll' devilc(s) li'r alanll purposl's_ I h01l1 N 1'1'1\ 7.. - I'IH'I. :1.:\, 1(1.)1 (d For a Ullil elllployillg a lock-ill alarlll kalun'. aUlolllalic Inlllsler is provided liulIl alarlll 10 a Irouhle cOlldilioll. 1"'0111 NFI'1\ 7.1 - 1!IH". :\-:1.1 (c)/ (d) The IIl1il is capahll' of prodll.-ill~ au alanll si~lIallilr al least 'I lIIillu1es al II... halll")' \'l,Ilag.. al which a Irollhl.. si~lIal is lIonllally ohlailled. (ollowl'll hy 1101 Il'ss I hall 7 days of Irouble siK"al operal iou. 11'1011I NFI',\ 7-1 . 1!l1I!1. :1-:1.I(d)l (e) Thc audihle llOlIhle sigual is plOdll(('d al least Ollce every lIlillUtC Ii,.. 7 COllsl'culive days. 1"'0111 NFI'^ 71 - I!lH!I, :1-:I.I(e)l (I) Acceptahle replacelllcllf hallnies arc dead)' iel<<:lIli- lied hy lIIallul;Klurer's(s') lIallle alld 1II0del IIIllIIher(s) 011 Ihc IIl1il lIear the battery cOlllpaltllH'lIL 1"-'011I NFI'1\ 7-1. I!lH". :1-:1.1(1)/ (g) I~ I cadily 1I0liceahlc visihle illdical iOIl shall he dis- played \~hell a prilllaly "auny is 1(,llIoved limll Ihe UlliL [Frolll NFI'^ 74 - 1!l8!1, :I-:'-l(g)1 (h) AllY ullit Ihat uses a 1I0urechargeahle hall cry as a primary power Slip ply lhat is capahle of a to-year or greater service life, illcludillg leslillg. alld lIIeets I he re1luirellll"IIIS of (h) Ihru (c) ahovl'. shall 1101 II(' rl'qllired 10 have a replacl'ahle halll'IY. 2-3.4 Secondary (Standby) Power Supply. 2-3.4.1 Rellloval or discollllecrioll 01" a halleTY used as a seumdary (stalldby) power source shall cause a dislillclive audihle or visihle I rouble sigllal. 2-3.4.2 An:eplahle replacelllellt balleries shall he deady idelltilied by lIIallu!;lclurer's(s') II a 1I1l' alld 1II0del 111111I- her(s) 011 the IInit Ileal' Ihe hailer}' clllllparllllent. 2-3.4.3 II" relJuired hy law lilr disposal n'asolls. rnhal-gl'- ahle bauerics shall he rClllovahle. 2-3.4.4 Alltolllatic rccharging sh<lll he provided wh('n~ a I-echaq~eable hallel'y is used as l'le secolldary (slalldby) suppl~'. The supply shall be capahle 01" ope!";..illg Ihe sys- lelll lill' al least 24 hours ill Ihe 1I0rlllal cOlldilioll, lilllowed by 1101 less th<lll 4 lIIillules 01" alanll. Loss 01" the sccolldal'y (slalldby) sou In' shall soulld an alldihle I rouble sigllal al least ollce every IlIinule. 72-:11 2-3.1.4.1 TIll' hallny shall be IITharged wilhill 4 hours il" POWI'r is I'lovilh.d Ii-Olll a drl"llil thai ('alllw switched Oil 11I- oil olh... Ihall by a circllil bl('akl'r. or wilhin 4R hours whell powl'r is pnlvilkd I"rolll a cin:uit that GUillot he swilched Oil or oil" olher Ihall hy a drcuil breaker. 2-3.4.5 Wllne alllolnatic recharging is not provided, Ihe balln}' shall he IIIollitol'ed to ensure that the following cOlldiliollS are IIIet: (a) 1\11 power re'l"irelllellts are IIIellill' at least f year's liIe. (b) A dislillclive audilJlc trouhle sigllal is givell beli>l'c I he hailer}' capacity has bee II deplcled lJelow the level n'(l'lired 10 pl'odun~ all alal'lII sigllallilr 4 minutes. 1 New paralp-aphs alld lilleJ 2-3.5 Primary Power - Nonelectrical. A suitable sprillg-lI'oulld lIIechallislll shall provide power 1i:)I' the non- decI ri(-al I'onioll of a listed sillgle slalioll delector. A visi- hIe indiGl1 iOIl shall he provided to show that sullidenl opcralillg power is 1101 availahle. I I' mill NFI'^ 71 - I !lilli, :1-1I1lodili('c11 2-4 Equipment Performance. I Fmlll N FI'^ 74 - 19R!l, Chap. 41 2-4.1 Gelleral. Thc !;,ilure 01" any nOli reliable or short- lile colllpollent thai renders the detector inoperable shall he n~adily apl'arenl 10 Ihe on:llpallt of the living unit with- out 1 he Ill'ed lill' fest. IFrom NFPA 74 - 1989,4-11 2-4.2 Smoke Detectors. [From NFI'^ 74 - 19R9, 4-2J 2-4.2.. Each sllloke detector shall detect abnormal quan- lities of slIIoke Ihatmay occllr in a dwellillg, shall properly operale in the 1I11rlllal ellvirolllllelltal cOllditions or a household, alld shall he ill compliallce with ANSI/UL 268, SI//ok" /)('Ialon fill- Fire Proter:liue Signaling SYJtemJ, or ANSI/VI. 217, .<iil/K'e and MulliJ}le Slation Smoke /JetecloT.l. I "mill N FI'^ 74 - 1989. 1-2.1' 2-4.3'" lIeat Uetectors. Each heat deteclOl', including a Il<'al de(el"lor illlegl-all}' lJIollllted on a slJloke detector, shall delect ahllorlJlally high temperature or rate-of- lelllperal ure rise, and all such detectors shall be listed or approved li,,- not less than !i()-n (I !i-m) spacing. 11'1"<111I NFI'A 74 - 1989,4-3 lIIodifiedJ 2-4.3..'" Fixe'd-tclllperature detectors shall have a tem- peralure rating at least 2501' (\40C) ahove the normal ambi. 1'111 (Clllperat lire and shall 1101 eXITed !ino!, (280C) higher ,Ilall I Ill' IlIaxillllllll anlicipaled alllhiellllelllperalure in the ro01l1 or space where illstalled. [Fnllll NFI'A 74 - 19R9, 4-3.1' 2-4.4 Alarm Signaling Intensity. (Frolll N FI'^ 74 - 1989, 4-4 modifiedJ 2-4.4.1 All alanll-slllllldillg appliallces shall have a mini- 111111I1 lalillg of H!i dBA at 10 It (3 III). 1993 Edition