危险区域电气设备安装注意事项101021蔡文1

InstallationofElectricalEquipmentinHazardousAreasDenialofIgnitionSourcestoflammableGases危险区域电气设备安装注意事项101021蔡文[1]Itcannotbestressedhowimportantthephilosophiesfollowedtodenyignitionsourcestoflammablegasesare.Thesmallestignitionsourcecanleadtothemostdireconsequences……,危险区域电气设备安装注意事项101021蔡文[1]Bothfaraway–DeepwaterHorizon,GulfofMexico,April2010危险区域电气设备安装注意事项101021蔡文[1]Andclosetohome-PingyuCoal&ElectricCoLtd,Yuzhou,HenanProvince,

October2010危险区域电气设备安装注意事项101021蔡文[1]ThispresentationisbasedontheInternationalElecrotechnicalCommission’spublicationIEC-60079ThereareotherpublicationssuchastheNationalElectricCode(NEC)intheUSAthathavealsoproducedstandardsforhazardousareasbuttheequipmentinthisprojectwillbetoIECstandards危险区域电气设备安装注意事项101021蔡文[1]TheIEChasoveracenturyofexperienceproducingelectricalstandardsThefirsthazardousareastandardswerecreatedfortheminingindustryandthenexpandedtoincludetheoilandgassectorIECstandardsarenotfrozenintimebutevolveformanyreasonssuchasnewmaterialsbeingproduced,technicaladvancesaremadeandfindingsfromdisasterenquirestonamebutafewThesestandardsarewrittentoprovidethebestpossibleprotectionintheeventofagasescapeutilisingexperienceofpriordisastersandtheleadingexpertsinthehazardousareafield

危险区域电气设备安装注意事项101021蔡文[1]FlammablegasesrequireONLYONEsourceofignitionAllequipmentMUST

complywiththeregulationsDisasternewsstoriesusuallysaytherewasANexplosionAllregulationsMUSTbeadheredto=============Therecanbenoexceptions危险区域电气设备安装注意事项101021蔡文[1]ThezonesforthisvesselcanbefoundondrawingM40188-1030015-HazardousAreaPlanPlus-allequipmentinexteriorlocationswhichiscapableofoperationafterashutdownistobesuitableforinstallationinZone2locations危险区域电气设备安装注意事项101021蔡文[1]TherearevariousphilosophiesthataredefinedbytheIECtodenysourceofignitionNote;Thereisaphilosophyhierarchy,Zone0equipmentcanbeusedinZones1&2,Zone1equipmentcanbeusedinZone2危险区域电气设备安装注意事项101021蔡文[1]ListofHazardousAreasonHaiYangShiYou981Bellnipple–zone1Shaleshakers-zone1Helifuelarea-zone1Batterylocker-zone1Paintlocker-zone1Belowhelideck-zone1Crownzone1Mudpits-zone2Drillfloor-zone2Riserstorage-zone2Ventsfromenclosedhazardousareaszone2Loadingstationsportandstarboardzone2allequipmentinexteriorlocationswhichiscapableofoperationafterashutdownistobesuitableforinstallationinZone2locations.危险区域电气设备安装注意事项101021蔡文[1]TipsoninspectionofExequipment;(Afullchecklistisprovidedinthehandout)EquipmentiscorrectforZoneAllcablesmustbearmouredGlandsforExdshouldbeExdorExdeGlandsforExeshouldbeExeorExdeArmourtobeclampedbytheglandForExequipmentblankstobeExratedForExeequipmenttheglandsandblanksthreadlengthshouldbeminimum6mmorIPwasherandinternallockout危险区域电气设备安装注意事项101021蔡文[1]Whenearthringisused,thismustbelocatedbetweenglandshoulderandIPwasherExd,Exeequipmentearthwireshouldbeminimum2.5mm2upto16mm2powerconductorExiequipmentearthwireshouldbeminimum4mm2AllterminationsshouldonlyhaveoneconductorperterminalAllterminationsshouldbecorrectandtight危险区域电气设备安装注意事项101021蔡文[1]WireinsulationshouldbemaintainrightuptothemetaloftheterminalCrimpingtoolsofthehandrachettypemustbeusedAllspareconductorsmustbeterminatedbothendsInsulationresistancetesttobecarriedout危险区域电气设备安装注意事项101021蔡文[1]EquipmentisIncorrectforzone危险区域电气设备安装注意事项101021蔡文[1]Uncertifiedforzone危险区域电气设备安装注意事项101021蔡文[1]Correctcertification危险区域电气设备安装注意事项101021蔡文[1]Correctglandsandinstalledtomanufacturersinstructions危险区域电气设备安装注意事项101021蔡文[1]Asaboveglandincorrectlyinstalled危险区域电气设备安装注意事项101021蔡文[1]Correctsizeofgland危险区域电气设备安装注意事项101021蔡文[1]Useoftape危险区域电气设备安装注意事项101021蔡文[1]Blankpluguncertified危险区域电气设备安装注意事项101021蔡文[1]Uncertifiedblank危险区域电气设备安装注意事项101021蔡文[1]Blankplugtobecertifiedandcorrectlyinstalled危险区域电气设备安装注意事项101021蔡文[1]Exelocknutrequired危险区域电气设备安装注意事项101021蔡文[1]Incorrectuseofearthring危险区域电气设备安装注意事项101021蔡文[1]Correctuseofearthring危险区域电气设备安装注意事项101021蔡文[1]Twocoresoneterminal危险区域电气设备安装注意事项101021蔡文[1]Correctconnectionoftwocoresintooneterminal危险区域电气设备安装注意事项101021蔡文[1]Incorrecttermination危险区域电气设备安装注意事项101021蔡文[1]Terminalrailtobefixedandfreefromvibration危险区域电气设备安装注意事项101021蔡文[1]Exposedconductors危险区域电气设备安装注意事项101021蔡文[1]Spareconductorstobeterminated危险区域电气设备安装注意事项101021蔡文[1]Cablesupport危险区域电气设备安装注意事项101021蔡文[1]Incorrectuseoftools危险区域电气设备安装注意事项101021蔡文[1]EquipmentislabeledcorrectlyLabeltoinclude;ThenameofthemanufacturerorhisregisteredtrademarkThemanufacturer’stypeidentificationThe