InstallationofElectricalEquipmentinHazardousAreasDenialofIgnitionSourcestoflammableGasesItcannotbestressedhowimportantthephilosophiesfollowedtodenyignitionsourcestoflammablegasesare.Thesmallestignitionsourcecanleadtothemostdireconsequences……,Bothfaraway–DeepwaterHorizon,GulfofMexico,April2010Andclosetohome-PingyuCoal&ElectricCoLtd,Yuzhou,HenanProvince,

October2010ThispresentationisbasedontheInternationalElecrotechnicalCommission’spublicationIEC-60079ThereareotherpublicationssuchastheNationalElectricCode(NEC)intheUSAthathavealsoproducedstandardsforhazardousareasbuttheequipmentinthisprojectwillbetoIECstandardsTheIEChasoveracenturyofexperienceproducingelectricalstandardsThefirsthazardousareastandardswerecreatedfortheminingindustryandthenexpandedtoincludetheoilandgassectorIECstandardsarenotfrozenintimebutevolveformanyreasonssuchasnewmaterialsbeingproduced,technicaladvancesaremadeandfindingsfromdisasterenquirestonamebutafewThesestandardsarewrittentoprovidethebestpossibleprotectionintheeventofagasescapeutilisingexperienceofpriordisastersandtheleadingexpertsinthehazardousareafield

FlammablegasesrequireONLYONEsourceofignitionAllequipmentMUST

complywiththeregulationsDisasternewsstoriesusuallysaytherewasANexplosionAllregulationsMUSTbeadheredto=============TherecanbenoexceptionsThezonesforthisvesselcanbefoundondrawingM40188-1030015-HazardousAreaPlanPlus-allequipmentinexteriorlocationswhichiscapableofoperationafterashutdownistobesuitableforinstallationinZone2locationsTherearevariousphilosophiesthataredefinedbytheIECtodenysourceofignitionNote;Thereisaphilosophyhierarchy,Zone0equipmentcanbeusedinZones1&2,Zone1equipmentcanbeusedinZone2ListofHazardousAreasonHaiYangShiYou981Bellnipple–zone1Shaleshakers-zone1Helifuelarea-zone1Batterylocker-zone1Paintlocker-zone1Belowhelideck-zone1Crownzone1Mudpits-zone2Drillfloor-zone2Riserstorage-zone2Ventsfromenclosedhazardousareaszone2Loadingstationsportandstarboardzone2allequipmentinexteriorlocationswhichiscapableofoperationafterashutdownistobesuitableforinstallationinZone2locations.TipsoninspectionofExequipment;(Afullchecklistisprovidedinthehandout)EquipmentiscorrectforZoneAllcablesmustbearmouredGlandsforExdshouldbeExdorExdeGlandsforExeshouldbeExeorExdeArmourtobeclampedbytheglandForExequipmentblankstobeExratedForExeequipmenttheglandsandblanksthreadlengthshouldbeminimum6mmorIPwasherandinternallockoutWhenearthringisused,thismustbelocatedbetweenglandshoulderandIPwasherExd,Exeequipmentearthwireshouldbeminimum2.5mm2upto16mm2powerconductorExiequipmentearthwireshouldbeminimum4mm2AllterminationsshouldonlyhaveoneconductorperterminalAllterminationsshouldbecorrectandtightWireinsulationshouldbemaintainrightuptothemetaloftheterminalCrimpingtoolsofthehandrachettypemustbeusedAllspareconductorsmustbeterminatedbothendsInsulationresistancetesttobecarriedoutEquipmentisIncorrectforzoneUncertifiedforzoneCorrectcertificationCorrectglandsandinstalledtomanufacturersinstructionsAsaboveglandincorrectlyinstalledCorrectsizeofglandUseoftapeBla書nk糖plu霸gu漆nce僚rti賤fie影dUnc怒ert脆ifi顏ed難bla雞nkBla雷nk量plu端gt賣ob下ec令ert桌ifi恭ed洲and觸co舅rre該ctl澆yi頃nst艇all麗edExe竹lo村ckn蜜ut專req冶uir蟲edInc去orr甲ect培us哈eo華fe尸art啟hr葡ingCorr勉ect今use盯ofe庸arth泥rin適gTwo剪co侮res謀on貫et蹤蝶erm罷ina叔lCor漲rec犁tc面onn興ect脈ion禿of凝tw勞oc和ore臂si基nto渣on傻et真erm骨ina喝lInco勝rrec巧tte曉rmin古atio無(wú)nTerm俘inal棕rai北lto霞be唉fixe罵dan脾dfr撇eef盯rom攔vibr露atio怒nExp貸ose轎dc掃ond往uct鑼orsSpar狹eco鬧nduc循tors備to妄bet且ermi其nate銅dCab印le粒sup蛙por牢tInc溪orr雖ect稱us旅eo荒ft央ool蒸sEqu趣ipm拘ent散is按la灶bel武ed就cor擦rec鑄tlyLab蘭el無(wú)to盒inc觀lud窮e;The芬na灣me對(duì)of戰(zhàn)the紙ma君nuf昆act帆ure撿ro被rh浮is立reg暢ist債ere方dt販rad兔ema涂rkThe河manu展fact溉urer溪’st搖ype慮iden鋤tifi奧cati晃onThe甲symb亡olE框xThe砌symb版olf遭ore肚ach縣type挪of辭prot綢ecti丙onu曠sedThe漢sy涼mbo午lo易ft嚴(yán)he鴨gas弄gr挽oup爸fo節(jié)rt漸hat米eq佳uip只men發(fā)tFor齡grou俊pII營(yíng)ele招ctri允cal蝕equi牙pmen幻玉t,t盼hes不ymbo害lfo屢rth墾ete為mper歇atur為ecl速assAse全rial粱num元ber攀exce腿ptf養(yǎng)ors謊mall膊equ威ipme回nta喪nda瘡cces叼sori蟻esAll周th偏ea夕bov旱ep離hot栽os澤are樸in駛dee聯(lián)df長(zhǎng)rom劉ou哲rr嗽ig檔the必Ha釣iY臭ang陶Sh踐iY約ou饒981