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1、INTERNATIONALMARITIMEORGANIZATIONE4ALBERTEMBANKMENTLONDONSE17SRTelephone:0171-7357611Fax:0171-5873210IMOTelex:23588IMOLDNGRef.T4/4.03MSC/Circ.8488June1998REVISEDGUIDELINESFORTHEAPPROVALOFEQUIVALENTFIXEDGASFIRE-EXTINGUISHINGSYSTEMS,ASREFERREDTOINSOLAS74,FORMACHINERYSPACESANDCARGOPUMP-ROOMS1Th
2、eMaritimeSafetyCommittee,atitssixty-seventhsession(2to6December1996),approvedGuidelinesfortheapprovalofequivalentfixedgasfire-extinguishingsystems,asreferredtoinSOLAS74,formachineryspacesandcargopump-rooms,asMSC/Circ.776.2TheSub-CommitteeonFireProtection,atitsforty-secondsession(8to12Decembe
3、r1997),recognizedtheneedoftechnicalimprovementtotheGuidelinescontainedinMSC/Circ.776toassistintheirproperimplementationand,tothateffect,preparedamendmentstotheGuidelines.3TheCommittee,atitssixty-ninthsession(11to20May1998),approvedrevisedGuidelinesfortheapprovalofequivalentfixedgasfire-extin
4、guishingsystems,asreferredtoinSOLAS74,formachineryspacesandcargopump-rooms,assetoutintheannex,tosupersedetheGuidelinesattachedtoMSC/Circ.776.4MemberGovernmentsareinvitedtoapplytheannexedGuidelineswhenapprovingequivalentfixedgasfire-extinguishingsystemsforuseinmachineryspacesofcategoryAandcar
5、gopump-rooms.***I:CIRCMSC848.WPDMSC/Circ.848ANNEXREVISEDGUIDELINESFORTHEAPPROVALOFEQUIVALENTFIXEDGASFIRE-EXTINGUISHINGSYSTEMS,ASREFERREDTOINSOLAS74,FORMACHINERYSPACESANDCARGOPUMP-ROOMSGeneral1Fixedgasfire-extinguishingsystemsforuseinmachineryspacesofcategoryAandcargopump-roomsequivalentto
6、fire-extinguishingsystemsrequiredbySOLASregulationsII-2/7andII-2/63shouldprovethattheyhavethesamereliabilitywhichhasbeenidentifiedassignificantfortheperformanceoffixedgasfire-extinguishingsystemsapprovedundertherequirementsofSOLASregulationII-2/5.Inaddition,thesystemshouldbeshownbytesttohave
7、thecapabilityofextinguishingavarietyoffiresthatcanoccurinaship'sengine-room.Principalrequirements2AllrequirementsofSOLASregulationsII-2/5.1,5.3.1,5.3.2to5.3.3,exceptasmodifiedbytheseguidelines,shouldapply.3Theminimumextinguishingconcentrationshould
