EMERGENCYMANUALPolicies&ProceduresDIVISION:RMSDEPARTMENT:SecurityCODE:DATE:18.04.92APPROVED:MDREVISION:SUBJECT:Firefighting(2)POLICYAllmembersofthefirecrewarerequiredtoundergoregulartraininginthehandlingoffirefightingequipment.PURPOSETolimitfiredamageandensurethesafetyofallpersonswithinthehotel.PROCEDURE1.GENERALAportablefireextinguisherorahosereelisdesignedtoputoutasmallfire,notabigone.Ifyoudecidetoattackafirewithaportablefireextinguishermakesure:·Thefirebrigadehasbeennotified.·Everyonenotonthefire–fightingcrewhasbeen,orisbeing,evacuated.·Youhavethecorrectextinguishingmedium.·Thefireisnotspreading.·Youhaveawayout.·Youfightthefirewithyourbacktotheexit.·Yougetoutfastifyoureffortisfailing.2.WHENFIGHTINGAFIRE·Takeupapositionwhereaccesstothefireisunrestricted,butwhereaquickandsaferetreatispossible.CENTURYHONGKONGHOTEL–ROOMSDIVISIONPage1of2EMERGENCYMANUALPolicies&ProceduresSUBJECT:FirefightingCODE:Crouchingwillhelptheoperatortokeepclearofsmoke,avoidheat,andwillallowacloserapproachtothefire.Alwaysensurethatafireiscompletelyextinguisheandnotliabletore–igniteorcontinuesmoulderinStayalertforre–ignition.3.CLASSESANDTYPESSOFFIREThefullrangeoffireclassesandtypesare:CLASSAOrdinarycombustiblessuchaswood,clothes,rubbish.CLASSBFlammableliquidssuchaspetrol,oil,paint.Thereisalsoaspecialtypeoffirethatposesaparticularthreattothefire–fighter,thatis,firesinvolvingliveelectricalequipment.Suchfiresarenotonlyaproblembecauseofthethreatposedbythenotonlyaproblembecauseofthethreatposedbythefire,buttheinvolvementofelectricitycanpresentafurtherlifethreateningsituation.FiresinvolvingelectricityarereferredtoasType(C)fires.Ofcourse,ifyoucandisconnecttheelectricalsupply,theriskofelectrocutionisremovedandthefireisnolongeratype（C）fire.ThefirecanthenbeconsideredClassAorB.4.EXTINGUISHINGAGENTSWATER–Waterisavailablefromhosereels.Waterextinguishesfirebycoolingthefuelbelowignitiontemperature,Wateralsopreventsthespreadoffirebywettingmaterialsurroundingtheoutbreak.CENTURYHONGKONGHOTEL–ROOMSDIVISIONPage2of2EMERGENCYMANUALPolicies&ProceduresWaterisidealforuseonwhatisknwnasClassAfires,i.e.fireinvolvingwood,paper,clothing,packingmaterials,.Timberandotherordinarycombustibles.Rememberwaterconductsprimarilysuitedtofiresinvolvingflammableliquidssuchaspetrol,oilsandgrease.ThoseareknownasClassBfires.CENTURYHONGKONGHOTEL–ROOMSDIVISIONPage3of2EMERGENCYMANUALPolicies&ProceduresSUBJECT:FirefightingCODE:Foamactsbysmotheringthefire,thatis,itremovestheoxygenfromthefiretriangle.Likewater,foamconductselectricityandmustnotbeusedonelectricalfires.CARBONDIOXIDE–CarbondioxideissuitableforuseonClassBfires,i.e.flammableliquids,butcanalsobeusedonfiresinvolvingliveelectricalequipment.Thesearelocatedinthekitchenareaonly.·Itisextremelycoldindischarge,thereforeitaffectsthelevelofheat.·Itsmothersthefirebyexcludingtheoxyen.·Itdilutestheatmosphere’soxygen,thereforeaffectingthelimitsofflammability.DRYCHEMICAL–Theterm“drychemical”generallyreferstoachemicalagentsuchassodiumbicarbonate.DrychemicalisalsosuitableforClassBfires.Drychemicalactsbybreakingapartthethreesidesofthetriangle,affectingtheinterchangenecessaryforthefiretocontinue.Asdrychemicalhasnocoolingeffectflashbackmayoccurfromhotsurfacesneartheoutbreakifthechemicalfilmisbroken.DryChemicalmaybeusedonfireinvolvingliveelectricalequipment,howevercaremustbetakenifthedryc...
