ABS Rules for Building and Classing mobile offshore drilling units 2012 Part 4

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1、Part4:MachineryandSystemsRULESFORBUILDINGANDCLASSINGMOBILEOFFSHOREDRILLINGUNITS2012PART4MACHINERYANDSYSTEMSAmericanBureauofShippingIncorporatedbyActofLegislatureoftheStateofNewYork1862Copyright©2011AmericanBureauofShippingABSPlaza16855NorthchaseDriveHouston,TX77060USARuleChangeNotice(2008

2、)RuleChangeNotice(2012)Theeffectivedateofeachtechnicalchangesince1993isshowninparenthesisattheendofthesubsection/paragraphtitleswithinthetextofeachPart.Unlessaparticulardateandmonthareshown,theyearsinparenthesesrefertothefollowingeffectivedates:(2000)andafter1January2000(andsubsequentyear

3、s)(1996)9May1996(1999)12May1999(1995)15May1995(1998)13May1998(1994)9May1994(1997)19May1997(1993)11May1993ListingbyEffectiveDatesofChangesfromthe2008RulesNoticeNo.1(effectiveon1January2009),Notice2(effectiveon1July2009),Notice3(effectiveon1January2010),andNoticeNo.4(effectiveon1January2011

4、)whichareincorporatedinthe2012Rules,aresummarizedbelow.EFFECTIVEDATE1January2009–shownas(2009)(basedonthecontractdatefornewconstructionbetweenbuilderandOwner)Part/Para.No.Title/SubjectStatus/RemarksPART4MachineryandSystems4-1-1/Table2AmbientTemperaturesforTobaseacceptanceofmaterialsformac

5、hineryonspecifiedminimumUnrestrictedServiceidentifiedairandseatemperatures.(IncorporatesNoticeNo.1)4-2-6/5.5.1(e)FlexibleHosesToproviderequirementsgoverningtheuseofflexiblehosesinfixed(New)oxygen-acetylenesystems.(IncorporatesNoticeNo.1)4-2-6/9.3.3NonSelf-PropelledUnitsToclarifythestartin

6、gairrequirementsfornonselfpropelledunits.(New)(IncorporatesNoticeNo.1)4-3-2/3.1.2CapacityofGeneratorsToclarifythataftertheemergencygeneratorhasbeenstarted(afterablackout),“othermachinery”mustbeusedinconjunctionwiththeremainingmaingeneratorsinordertostartthepropulsionmachinery.(Incorporate

7、sNoticeNo.1)4-3-2/3.1.4Startingfrom“DeadShip”ConditionToclarifythatsomesourcesofpowerareassumednottobeavailableandthattherequirementwouldalsobeapplicabletovesselswithemergencybatteries(withnoemergencygenerator).(IncorporatesNoticeNo.1)4-3-2/5.3EmergencyPowerSupplyTo