FFFS Smoke Detector Presentation - June, 2010

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    armsWhy are people dying in fires with

    wor ng mo e arms

    ,

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    AndreaDennis,

    Kyle

    Raulin,

    AlSchlessman,ErinDeMarco,

    andChristineWilson

    Thesefivestudentsdiedat

    OhioStateUniversit on

    April13,2003

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    JulieTurnbull,

    KateWelling&

    SteveSmith

    diedin

    this

    houseonApril

    10th,2005at

    Miami

    University

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    (posted,Nov.

    5,

    2007)

    e uty am y osest reeo t e rc ren n

    a

    fire.

    ReporterKrause:Atwhatpointdidyouhear

    yoursmo e

    etector

    man a

    e uty:

    Never. Theyneverwentoff.

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    Chickasaw Alabama

    (May28,

    2008)

    couldnotmakeitoutofthefamilyhouse.

    thatneverwentoff.

    smoke

    or

    they

    sound

    very

    late....Williams

    attorneyRichardTaylor

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    October17,

    2008

    restarte ye ectr ca pro em s year

    old

    Brett

    McDavid.

    McDavids batterypoweredsmokedetector

    a e

    tooperate

    nvest gators

    sa

    n

    t e r

    initialreport.

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    Mont elierVT.

    (December18,

    2005)

    .

    eapar men a ree ar w re on za onsmokedetectors,includingoneinthegirls

    smoke..RussellAshe,

    Deputy

    Chief

    for

    the

    Barre CityFireDepartment

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    ThisHappenstooOften

    Ft.Wa ne,IN

    (January23,2009)

    afterbeingrescuedfromapartmentcomplex.

    atleasttworesidentsoftheapartmenttoldtheNewsSentineltheywokearound5a.m.nottoa

    saidshe

    heard

    from

    other

    students

    whose

    apartmentwascompletelyfullofsmokeande ra arms no soun e er.

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    HOMESTRUCTUREFIRES

    MartyAhrens

    NationalFireProtectionAssociation

    FireAnalysisandResearchDivision

    Roughlyhalfofallhomefiredeathsresult

    . .

    and7:00a.m.

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    FireDeathsandInjuries:FactSheet

    en ers

    or

    sease

    on ro

    an

    reven on

    Mostvictims

    of

    fires

    die

    from

    smoke

    or

    toxic

    .

    Smokingistheleadingcauseoffirerelateddeaths(Ahrens2009a).

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    THESMOKINGMATERIALFIREPROBLEM

    JohnR.Hall,Jr.

    FireAnal sis

    and

    Research

    Division

    NationalFireProtectionAssociation

    November2007

    Homesmokingrelatedfiredeathsaremorelikelyto

    occurinfiresthatstartinthelivingroom,family

    room,or

    den

    than

    in

    the

    bedroom.

    theseroomstogetheraccountforroughlytwo

    r so

    ome

    smo ng

    re a e

    re

    ea s,

    u

    e

    combinationoflivingrooms,familyroomsanddens

    .

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    ActivityatTimeofVictimsFatalInjury

    bySmokeAlarmPresenceandOperation

    .

    19992001AnnualAverages

    Activity Presentand Presentbut None

    Operated DidntOperate Present

    Sleeping 38% 57% 49%

    Escaping 21% 20% 27%

    UnabletoAct 10% 14% 11%

    FireControl 9% 2% 1%

    IrrationalAct 7% 0% 5%

    UnclassifiedActivity 5% 4% 1%

    Returningto

    Vicinity

    of

    Fire

    before

    control4% 0% 2%

    Total 100% 100% 100%

    Note: Percentages were calculated on known data only.

    Source: National estimates based on NFIRS and NFPA survey

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    SmokeDetectorHistory

    SMOKEDETECTORS FIRESAFETYS

    SmokeDetectorusagerosefrom10%in1975to

    95%in

    2000

    while

    home

    fire

    deaths

    were

    cut

    in

    half.

    Thehomesmokealarmiscreditedasthegreatestsuccessth

    ,

    italone representedahighlyeffectivefiresafetytechnology

    withleverageonmostofthefiredeathproblemthatwent

    fromtokenusagetonearlyuniversalusageintheshortterm.

    NIST,

    2004

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    IS THE REDUCTION IN FIRE DEATHS

    DUE

    TOSMOKE

    DETECTORS?

    There

    has

    been

    a

    dramatic

    increase

    in

    full

    spectrum

    burn

    centers.

    Significantreductioninpeoplewhosmoke.

    Fireretardants

    have

    been

    added

    to

    mattresses

    and

    furniture.

    Buildingcodesandinspectionshaveimproved.

    Improvementsin

    wiring

    and

    fire

    related

    construction.

    Homeheatingdeathshavedecreasedbyover70%.

    Fire deaths have gone down because there are fewer fires

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    FireDeathsperMillionPeople

    1950

    1980

    40

    30

    35 Smoke alarms

    20

    25

    DeathsDownward trend started well

    5

    10

    Trend

    before widespread usage ofsmoke detectors beginning in

    1970

    0

    1950

    1960

    1970

    1980

    Civilian deaths per million people from fire and flame in the United States, (1950, 1955-

    1979) Source: National Safety Council

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    Thenumberofdeathshasremainedconstantfor

    t e

    ast

    years,

    eat s

    orevery

    ,

    res.

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    TheU.S.fireproblem

    Residentialstructurefires

    Year Fires CivilianDeaths

    1977 750,000 6,135

    1981 733 000 5 540

    1989 513,500 4,435

    1997 406,500 3,390

    , ,

    Source: NFPA survey

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    WHITEPAPER

    HOME

    SMOKE

    ALARMS

    ANDOTHERFIREDETECTION

    ANDALARMEQUIPMENT

    Public/PrivateFireSafetyCouncil

    April,2006

    Thehomefiredeathraterelativetonumberoffiresisessentiallyunchangedfrom1977to2003.3

    .

    series,and

    population

    data

    from

    Statistical

    Abstract

    of

    the

    United

    States

    2004

    2005,

    U.S.

    CensusBureau,Washington,DC,2004.

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    IONIZATION: Contains a small amount of radioactivity that conducts electricity.

    Electric current flows continuously between two electrodes in the chamber. Whensmoke particles enter, they disturb the flow, causing the alarm to go off.

    .When smoke enters, it deflects the beam, causing it to strike the photocell and setoff the alarm.

    IONIZATION VS. PHOTOELECTRIC: Ionization alarms are more sensitive to the

    fires. Photoelectric alarms are more sensitive to the large particles of combustionemitted by smoldering fires.

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    NIST2008

    ALARMTIMES

    IN

    SECONDS

    39 minutes after the photoelectric

    The photoelectric is blue The ionization is red

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    ASET

    Flaming Photoelectric Ionization DualIon/Photo

    Living Room 108 152LivingRoom(Rep) 134 172

    u urn s

    Bedroom 350 374

    Bedroom(closed) 3416 3438

    SMOLDERING SMOLDERING SMOLDERING SMOLDERING

    LivingRoom 3298 (55min) 16 3332

    Livin Room AC 2773 46min 54 2108

    COOKING COOKING COOKING COOKING

    Kitchen 952(16min) 278(5min) 934

    NIST Technical Note 1455-1 (page 243 and is two story alarm on each level, ASET in seconds) February 2008 RevisionPerformance of Home Smoke Alarms Analysis of the Response of Several Available Technologies in Residential FireSettings

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    AMessagefromtheU.S.FireAdministratoraboutHome

    Smoke

    AlarmsPostedonAugust27,2008byGregoryB.Cade,U.S.FireAdministrator

    IncooperationwiththeUnitedStatesFireAdministration(USFA),, . . ,

    NIST

    has

    conducted

    an

    evaluation

    of

    current

    and

    emerging

    smoke

    alarmtechnology

    responses

    to

    common

    residential

    fire

    scenarios

    and

    nuisancealarmsources.

    Smokealarmsofeithertheionizationtypeorthephotoelectrictypeconsistentlyprovidedtimeforoccu ants to

    esca e

    from

    most

    residential

    fires

    althoughinsomecasestheescapetimeprovidedcanbeshort.

    Consistent with rior findin s ionization t e alarms

    providedsomewhat

    better

    response

    to

    flaming

    fires

    thanphotoelectricalarms,andphotoelectricalarmsrovide often considerabl fasterres onseto

    smolderingfiresthanionizationtypealarms.

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    NIST sponsored conference-response times are given in seconds

    Ionization1.3%

    Photoelectric2.5%

    (CeilingPosition #)

    . . . . .

    Test Device (2) (3) (5) (6) (1) (2)

    UL268 Ion 3459 3317 3843 3614 3864 3591

    Smold.Smoke

    Photo 2421 2253 2916 2916 2726 2823

    . .

    UL268

    Flamm.Liquid

    Ion 31 36 61 56 65 65

    Photo 26 29 55 55 57 57Diff.Avg.Time(Ion Photo) 5 7 6 1 8 8

    [4] Qualey, J, Desmarais, L, and Pratt, J.; Fire Test Comparisons of Ion andPhotoelectric Smoke Detector Response Times; Fire Suppression and DetectionResearch Application Symposium, Orlando, FL, February 7 - 9, 2001

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    UL268Tests DistanceFromTestFire

    Photoelectric0.5%

    8.0ft 17.7ft. 19.2ft.

    UL268

    Smold.SmokeIon 3318 3236 3691 3471 3677 3474

    Diff.ofAvg.Time(Ion Photo) 1762 1659 1683 1463 1823 1472

    UL268

    Ion 29 31 60 56 65 63

    amm. qu

    Photo 18 20 45 45 53 52

    Diff.Avg.Time(Ion Photo) 11 11 15 11 12 11

    [4] Qualey, J, Desmarais, L, and Pratt, J.; Fire Test Comparisons of Ion and

    From the AUBE 01 Conference/ NIST

    Research Application Symposium, Orlando, FL, February 7 - 9, 2001

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    Thedataforthesmolderingsmoketestsshowthattypicallythe

    photoelectricdetectorssetto2.5%/ftresponded12 18minutes

    earlier

    thanthe

    Type

    A

    ion

    detectors

    set

    to

    1.3

    %/ft.

    Table

    2shows

    that

    whenbothwereevaluatedat0.5%/ft,thephotoelectricdetectors

    typicallyresponded25 30minutesfasterthantheTypeAiondetectors.AsTables1and2show,intheUL268FlammableLiquidFire

    tests,there

    was

    no

    significant

    difference

    in

    response

    time

    between

    the

    photoelectric andTypeAiondetectorswhethercomparedattheirdefault

    sensitivities(2.5%/ftand1.3%/ft)orthesame,highersensitivity(0.5

    %/ft).

    StatementinReport: Notethatnotallions .

    According

    to

    NIST

    in

    2001

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    ManufacturersAdjustingSensitivityLevels

    ua

    ensor

    arms

    Incurrent racticemanufacturersma setalarm

    sensitivities

    in

    dual

    photoelectric/ionization

    alarms

    less

    sensitivethaninindividualsensoralarmswiththeintentto

    .

    Ideallythe

    response

    of

    dual

    ionization/photoelectric

    units

    should

    not

    lag

    significantlybehindthecollectiveresponseofindividualunits,especiallytoflamingfires.Furtherevaluationofthedualionization/photoelectric

    smokealarmsshouldbeconductedtoestablishthesetpoint

    characteristicsthat

    allow

    for

    effective

    alarm

    response

    comparable

    to

    individualunits,whilerecognizingthatsetpointchangesmayalsobe

    beneficialinthereductionoffalsealarms.

    (NFPATaskGroupofTechnicalCommittee,February2008)

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    separately. Therefore, manufacturers have the freedom toset each sensors sensitivity separately. Since an

    standards, it is not obvious what overall benefit isachieved from a dual alarm with an additional sensor

    technology that could be more or less sensitive thanwhat would be found in a standalone unit employingsuch a sensor.

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    PerformanceofDualPhotoelectric/Ionization SmokeAlarmsinFullScaleFireTests

    ThomasCleary

    BuildingandFireResearchLaboratory

    National

    Institute

    of

    Standards

    and

    Technolo

    Gaithersburg,MD

    (301)9756858

    [email protected]

    Abstract

    Overa

    range

    of

    ionization

    sensor

    settings

    examined,

    dual

    alarm

    responsewasinsensitivetotheionizationsensorsettingfor,

    whiledualalarmresponsetothekitchenfireswasverysensitivetotheionizationsensorsetting.TestsconductedintheNational

    Instituteof

    Standards

    and

    Technology

    (NIST)

    fire

    emulator/detector

    eva uators owe t att eionizationsensorsino t es e ionizationalarmsanddualalarmsspanarangeofsensitivitysettings. Whilethereappearstobenoconsensusonsensitivitysettin for ionization sensors it ma be desirable to tailor sensor

    sensitivitiesin

    dual

    alarms

    for

    specific

    applications,

    such

    as

    near

    kitchenswherereducingnuisancealarmsmaybeagoal,orinbedroomswherehighersmokesensitivitymaybeagoal.

    Presented at the Fire Protection Research Foundation's 13th annual Suppression and Detection Research &

    Applications Symposium (SUPDET 2009), February 24-27, 2009, Orlando, FL.

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    ULTesting

    Video

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    SmokeAlarmPresenceandPerformanceSeptember

    2009

    NFPA

    Report

    by

    Marty

    Ahrens

    40%

    23%NoSmokeDetector

    mo e e ec or resen

    andWorking

    SmokeDetectorDisabled

    37%

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    EveryoneThatPurchasedaSmokeAlarmbutDiedAnyway

    Non-Working Alarm

    Factors

    Working Alarm

    Factors

    37.29%Dead Battery Victim Intimate

    with fire

    62.7%

    Removed due toNuisance alarm

    Behavioral /PhysicalFactors

    problems Technology Failure(Alarm didnt operate)(Signaled too late)

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    AdditionalStatementofRecordtoBostonCityCouncil

    omm eeon

    u c

    a e y

    rom

    on

    ugus

    ,

    InNIST'ssmokealarmresearch,andinapplicationsinthefield,itisdocumentedthatmost

    commonionization

    detectors

    have

    a

    propensity

    to

    produce

    nuisance

    alarms

    during

    cooking

    activities.NISTexaminedabroadrangeofactivities(includingcooking)thatyieldnuisance

    . .

    Specifically,thesensitivitytoalarmthreshold,distancefromthesource,backgroundairflows,

    andalarmsensor(photoelectricorionization)wereexamined.Additionalmeasurementswere

    madewithaerosolinstrumentationtoprovideamorefundamentalunderstandingofnuisance

    alarm sources than has been reviousl ublished. Given the scenarios examined bothphotoelectricandionizationalarmsproducednuisancealarms,butNISTdoesnotmeantoimply

    thattheyareequallysusceptibletosuchnuisancealarms.Mostfielddatasuggestthationization

    alarmshaveagreaterpropensitytonuisancealarmthanphotoelectricalarms,possiblyindicating

    that certain activities such as cookin dominate re orted nuisance alarms in the field.

    Here ou can see NIST oes on record that ionization alarmshave greater propensity to nuisance alarm problems.

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    AstudyofAlaskanEskimovillages,publishedin2000,foundthationizationsmokealarmshadasignificantlyhighernumberofnuisancealarmsthanphotoelectric

    smokealarms

    when

    installed

    10

    to

    15

    feet

    from

    anuisance

    source.

    (Fazzini,

    Perkins&Grossman2000)Forthestudy,theresearchersinstalledbothionization

    ,

    livingspace.Thesmokealarmswereinstalledontheceilingbetween10to15feet

    fromacookingandtheheatingsources.Thestudyfound92%ofhomeswith

    ionizationsmoke

    alarms

    experienced

    nuisance

    alarms

    compared

    with

    only11%ofhomeswithphotoelectricsmokealarms,aratioofmore

    than8to1.Aftersixmonths,19%oftheinstalledionizationsmoke

    alarmshadbeendisconnectedcomparedtoonly4%oftheinstalled

    p otoe ectr csmo ea arms,whichhadbatteriesremoved.Theauthorsreportthateventhoughtheionizationsmokealarmshadsilencingorhushbuttonsthat

    allowedquietingtheunitfor10minutes,thebatterieswerestillremovedfrom

    the unit because of fre uent nuisance alarmin .

    (Harborview

    Injury

    and

    Research

    Center,

    Seattle,

    WA,

    NIST

    Report)

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    FalseAlarmsandUnwantedActivationsFrom:

    U.S.EXPERIENCE

    WITH

    SMOKE

    ALARMS

    ANDOTHERFIREDETECTIONAL/ALARMEQUIPMENTBy:MartyAhrens

    NationalFireProtectionAssociation

    Ionizationdeviceshadadisproportionateshareofnuisancealarms.

    oo ngsmo eten stoconta nmoreo t esma erpart c es esst anonemicron)thatactivateanionizationtypedeviceratherthanthelarger

    particlesthatactivateaphotoelectrictypedevice. IntheNationalSmoke

    ,

    alarmswereionizationtypedevices.

    Mostpeopledonotautomaticallyassumeasoundingsmokealarmisan. ,

    andknow

    that

    they

    are

    safe.

    However,

    lives

    have

    been

    lost

    when

    real

    alarmsweremistakenlyconsideredfalse.Unwantedactivationscan

    November 2004

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    TheNationalFireProtectionAssociationcommissionedHarrisInteractiveto

    conductthe

    Fire

    Prevention

    Week

    Survey.

    (Belowareafewofthefinding)

    Virtuallyall

    Americans

    currently

    have

    a

    smoke

    alarm

    installedintheirhomes.

    Fouroutoftenhavehadtheirsmokealarmsgooffin

    .

    *Fewerthanoneintenthoughtthattheirsmokealarmgoingoff

    meantt erewasa reort att ey a togetout.T osew t

    childrenaremorelikelythanthosewithouttothinkthis.

    * Theactualnumberis8%thoughttherewasafireortheyhadtovacate.

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    MartyAhrens

    NationalFireProtectionAssociation

    November2004

    1/3ofalarmscitedfornuisanceactivationswerelocatedincorrectly.

    Nuisancealarmproblemsoftencanbeaddressedbymovingthedevicetoadifferent

    .

    thedevicesstudiedfornuisancealarmsintheNationalSmokeDetectorProjectwere

    reportedlyinlocationsthatmadenuisancealarmsmorelikely,oftenlessthanfivefeetfrom

    , , .

    ove your a arm or sw c o a p o oe ec r c a arm.

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    EveryoneThatPurchasedaSmokeAlarmbutDiedAnyway

    Non-Working Alarm

    Factors

    Working Alarm

    Factors

    37.29%Dead Battery Victim Intimatewith fire

    62.7%

    Removed due toNuisance alarm

    Behavioral /PhysicalFactors

    problems Technology Failure

    (Alarm didnt operate)(Signaled too late)

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    StatementfortheRecord

    National Institute of Standards and Technolo

    Tothe

    BostonCityCouncilCommitteeonPublicSafety

    August6,2007

    Insummary,

    the

    research

    conducted

    by

    NIST

    staff

    leads

    to

    the

    conclusion

    that

    bothionizationandphotoelectricalarmsprovideenoughtimetosavelivesfor

    ,

    maynotalwaysalarmevenwhenaroomisfilledwithsmokefromasmoldering

    fire, exposingthemostsensitivepopulationswithmobilitylimitationstoan

    undeterminedrisk.

    Photoelectric

    detectors

    can

    provide

    a

    lot

    more

    warning

    time

    thanionizationdetectorsinasmolderingfire;atthesametimeasmolderingfires

    cantakealongerperiodtobecomedangerous.Ionizationdetectorscanprovidea

    littlemoretime thanphotoelectricdetectorsinaflamingfire; inthiscasethere

    .

    thepast

    decades

    have

    reduced

    the

    time

    available

    for

    safe

    egress

    in

    any

    fire.

    NIST

    is

    currentlyconductingresearchtoassesswhetherornotmodificationsmaybe

    neededinthestandardtestmethodforcertifyingresidentialsmokealarmsto

    accommodatethechangingthreat.

    S f h R d

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    StatementfortheRecord

    NationalInstituteofStandardsandTechnology

    Tothe

    BostonCity

    Council

    Committee

    on

    Public

    Safety

    August6,2007

    owever,ionizationa armsmaynota ways

    alarmevenwhenaroomisfilledwithsmoke

    romasmo er ng re.

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    TexasA&MStudyRisk

    Analysis

    of

    Residential

    Fire

    Detector

    Performance

    Thedevelopmentoftheriskanalysisofferedaclearinsightintowhy

    therecontinuestobeahighresidentialdeathrateinspiteof

    anincrease

    in

    the

    residences

    reported

    to

    have

    smoke

    .

    Thecurrentthoughtprocessdemonstratedbyfireofficialsintheposition,

    thehomewithoutconsiderationastothetypeofpotentialfireignition

    thatmostfrequentlyoccursortothequalityofthefiredetector.

    Areviewoftheriskanalysisprovidesaclearexampleoftheprobabilityofadetectorfailureifthereisnoconsiderationastotheriskinvolvedwith

    .

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    Asillustratedinthearticle,thevarioustypesoffiredetectorsprovidedifferentlevelsofrisk

    .

    Certaintypesoffiredetectorsaremorereliableforthedifferenttypesoffires,therefore,

    recommendationsastothetypeandlocationofthefiredetectorshouldincludethetypeof

    fireignitionthatwouldmostlikelyoccurandthemostreliabledetectorthatcanbeinstalled

    .

    Forexample,

    during

    asmoldering

    ignition

    fire,

    the

    photoelectric

    smoke

    detector

    offered

    the

    mostreliablemethodofdetectingthefirewhiletheroomoforiginwasstillinatenable

    con ition.

    Theprobabilityofthefailureofthephotoelectricdetectortodetectasmolderingignition

    fireis

    4.06%

    while

    the

    ionization

    detector

    provided

    a

    55.8%

    probability

    of

    a

    failure

    in

    a

    similartypeoffire. Thishighprobabilityofafailureoftheionizationdetectorcanbe

    contributedtoanumberoffactorssuchasperformanceundernormalconditionsandan

    inabilitytoconsistentlydetectsmolderingsmokeparticles.Thisisaveryimportant

    considerationsincemostofthefiresthatoccurinresidencesstartoutassmolderingignition

    fires.

    Duringaflameignitionfire,thephotoelectricsmokedetectorhada3.99%probabilityofa

    thefireis19.8%.

    Detection of Smoke:

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    DetectionofSmoke:

    FullScaleTestsWithFlamingandSmouldering Fires

    YSTEINMELANDandLARSEINARLNVIKSINTEF

    NBL

    NorwegianFire

    Research

    Labaratory

    N7034TrondheimNorway

    During smoldering fires it is only the optical.

    With flaming fires the ionization detectors react before the optical ones. Ifa re were s ar e y a g ow ng c gare e, op ca e ec ors are genera yrecommended.

    ,

    that it is only in extreme cases that this difference between optical andionization detectors would be critical in saving lives.

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    EveryoneThatPurchasedaSmokeAlarmbutDiedAnyway

    Non-Working Alarm

    Factors

    Working Alarm

    Factors

    37.29%Dead Battery Victim Intimatewith fire

    62.7%

    Removed due toNuisance alarm

    Behavioral /PhysicalFactors

    problems Technology Failure

    (Alarm didnt operate)(Signaled too late)

    Endorsements

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    Endorsements

    on o o uaSensor

    uyone

    ofeach

    IAFF (International AssociationofFire X

    F g ters

    IAFC (InternationalAssociation

    or Fire

    Chiefs)X

    NFPA (NationalFireProtection

    Association)

    X

    CPSC X

    NIST XWorld FireSafetyFoundation X

    us ra as an re u or es

    Council)

    NASFM X X

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    Dont Just Chan e Your Batteries

    Change

    Your

    Smoke

    Detector,

    Too

    Washington,DC TheInternationalAssociationofFireFighters(IAFF)isurginghouseholdstochange

    moret an ustsmo ea arm atter esw enDaylightSavingsTimeendsNovember2.TheIAFF

    smokealarm. About

    90

    percent

    of

    homes

    are

    e ui edwithionizationsmokealarms.

    Click

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    TheInternationalAssociationofFireChiefs

    ResidentialSmoke

    Alarm

    Report

    (9/80,

    excerpt)

    TheFire

    Chief's

    Recommendation

    Whatkindofdetectorshouldthefirechiefrecommend ionizationor

    photoelectric?Theanswertothisquestion,inthesubcommittee'sopinion,is

    .

    Itisthesubcommittee'sbeliefthatonlythephotoelectricdetectorwillmeetthe

    .

    Thesubcommitteebelievesthishasbeenproventimeaftertimethroughoutthe

    countryinactualtestsconductedbymanufacturersandfiredepartments(see

    AppendixA).

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    To: Local Fire Service AdministrationFrom: First Alert

    Date: July 17, 2008Re: Photoelectric-Specific Legislation

    The Vermont State Legislature recently approved Senate Bill 226 requiring photoelectric-type smokealarms to be installed in new and existing single-family homes. This bill was signed by Governor Jim

    Douglas on Thursday May 29, 2008 for passage into law. Massachusetts already abides by a state law.pending in Tennessee House Bill 2528 and Senate Bill 2600. Smoke sensing technology type policydiscussions are also being discussed in Indiana, Iowa, Ohio, Utah, and California. Clearly there is agrowing consensus within state legislatures as well as the fire service community that favorsphotoelectric technology. First Alert has played a crucial role in a tremendous industry effort to informconsumers on the importance of the home safety technologies; and more specifically the differences

    between smoke sensing technologies. In light of recent studies and ongoing industry-performed fieldresearch regarding the comparison of photoelectric and ionization smoke alarms, First Alert is offering thefollowing two scientifically substantiated determinations:

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    BRK/FirstAlertLetter(continued)

    1.Fieldresearchindicatesphotoelectricsmokealarmsexhibitsignificantlyfewernuisancealarmsthanionizationsmokealarms.(12)

    2.

    To

    silence

    a

    triggered

    smoke

    alarm,

    about

    22%

    of

    consumers

    will

    remove

    the

    battery,leavingthealarminoperableandpotentiallyputtingtheresidenceandits

    occupantsatriskshouldatruefireoccur. (3)

    Consideringphotoelectricsmokealarmsaredeterminedbyindustryexpertstobesignificantlylesspronetonuisancealarmandpotentialdisablingofthebatteriesby

    ,

    movingtowardtheuseofphotoelectricsmokesensingtechnology. Inaddition,FirstAlert

    aimstoreassureallpublicsafetyadvocatesthatoursisanorganizationthatactivelysupports

    ourconsumersamidstthissafetyrelatedlegislation.

    1Cleary,Thomas.ResidentialSmokeAlarmPerformance.BuildingandFireResearchLaboratory,NationalInstituteofStandardsandTechnology.UL

    mo ean re ynam cs em nar. ovem er, .

    2Mueller,B.A.Randomizedcontrolledtrialofionizationandphotoelectricsmokealarmfunctionality.InjuryPreventionBMJ,2008;14;8086.

    31997FireAwareness/EscapePlanningStudyforNationalFireProtectionAssociation,Quincy,MA,August1997,Tables3&4.

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    AustralasianFireAuthoritiesCouncil

    Positionon

    Smoke

    Alarms

    in

    Residential

    Accommodation

    June 1 2006

    That

    all

    residential

    accommodation

    be

    fitted

    withphotoelectricsmokealarms.

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    PhotoelectricSmokeAlarms

    SenateBillS226,passedandrequiresthatsinglefamily

    owneroccupied

    homes

    have

    aphotoelectric

    smoke

    detector

    oneachfloorandoutsideanybedrooms. Combinationz u

    asanalternativefortheselocationsbecauseofthefalsealarmsthataremorecommonwithionization.Peopledisarm

    .smokedetectorsthathadbeendisabledbytheoccupant.

    Thesedetectorsmustbephotoelectriconly.Ionizationcanbeusedinadditiontothephotoelectrics thatarerequired,butmustbeseparate.

    TheGovernorofVermontsignedthebillonMay29th,2008attheBarre CityFire

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    MaineRevisedStatutes

    2463A2465 Title25:INTERNALSECURITYANDPUBLICSAFETY

    Part6:FIREPREVENTIONANDFIREPROTECTION

    Chapter317:PREVENTIVEMEASURESANDRESTRICTIONS

    2464.Smokedetectors

    " ". . ,

    smoke,providesanalarmsuitabletowarntheoccupantswithintheindividualdwellingunit

    inwhichitisattachedandthathasbeenlistedforusebyanationallyrecognized

    independenttestinglaboratory.

    ,c. , .

    2. Smokedetectorsrequired. Theownershallproperlyinstall,orcausetobeproperlyinstalled,smokedetectorsinaccordancewiththeNationalElectricCodeandthe

    manufacturer'srequirements.Insinglefamilydwellings,atleastonesmokedetector,which

    maybephotoelectric,ionizationoracombinationofboth,mustbeinstalledineacharea

    within,or

    giving

    access

    to,

    bedrooms.

    These

    smoke

    detectors

    may

    be

    powered

    by

    the

    electricalserviceinthedwelling,bybatteryorbyacombinationofboth.

    containingatuborshowermustbeaphotoelectrictypesmokedetector.

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    CHANGESTOMASSACHUSETTSSMOKEDETECTORLAW:

    UNDERSTANDINGTHESTATE'SNEWREGULATIONS

    Underthe

    new

    regulation,

    asmoke

    detector

    utilizing

    o ec no og es srequ re na esame

    locations,exceptwithin20feetofakitchenora

    .

    feetofakitchenorbathroomcontainingabathtub

    orshower,onlyaphotoelectricsmokedetectoris

    allowed.

    Anionization

    detector

    is

    prohibited

    in

    theseplacesduetotheirtendencytobesetoffby

    steam.

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    SESSION2009

    H1

    The

    smoke

    detectors

    shall

    utilize

    either

    photoelectricordualionizationand

    photoelectricsensortechnology

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    DeanandDoug