RP500ElectricalClassifications1997API标准

RecommendedPracticeforClassificationofLocationsforElectricalInstallationsatPetroleumFacilitiesClassifiedasClassI,Division1andDivision2APIRECOMMENDEDPRACTICE500SECONDEDITION,NOVEMBER1997Oneofthemostsignificantlong-termtrendsaffectingthefuturevitalityofthepetro-leumindustryisthepublic’sconcernsabouttheenvironment.Recognizingthistrend,APImembercompanieshavedevelopedapositive,forwardlookingstrategycalledSTEP:StrategiesforToday’sEnvironmentalPartnership.Thisprogramaimstoaddresspublicconcernsbyimprovingindustry’senvironmental,healthandsafetyperformance;docu-mentingperformanceimprovements;andcommunicatingthemtothepublic.Thefounda-tionofSTEPistheAPIEnvironmental,HealthandSafetyMissionandGuidingPrinciples.APIstandards,bypromotingtheuseofsoundengineeringandoperationalpractices,areanimportantmeansofimplementingAPI’sSTEPprogram.APIENVIRONMENTAL,HEALTHANDSAFETYMISSIONANDGUIDINGPRINCIPLESThemembersoftheAmericanPetroleumInstitutearededicatedtocontinuouseffortstoimprovethecompatibilityofouroperationswiththeenvironmentwhileeconomicallydevelopingenergyresourcesandsupplyinghighqualityproductsandservicestoconsum-ers.Werecognizeourresponsibilitytoworkwiththepublic,thegovernment,andotherstodevelopandtousenaturalresourcesinanenvironmentallysoundmannerwhileprotectingthehealthandsafetyofouremployeesandthepublic.Tomeettheseresponsibilities,APImemberspledgetomanageourbusinessesaccordingtothefollowingprinciplesusingsoundsciencetoprioritizerisksandtoimplementcost-effectivemanagementpractices:lTorecognizeandtorespondtocommunityconcernsaboutourrawmaterials,prod-uctsandoperations.lTooperateourplantsandfacilities,andtohandleourrawmaterialsandproductsinamannerthatprotectstheenvironment,andthesafetyandhealthofouremployeesandthepublic.lTomakesafety,healthandenvironmentalconsiderationsapriorityinourplanning,andourdevelopmentofnewproductsandprocesses.lToadvisepromptlyappropriateofficials,employees,customersandthepublicofinformationonsignificantindustry-relatedsafety,healthandenvironmentalhazards,andtorecommendprotectivemeasures.lTocounselcustomers,transportersandothersinthesafeuse,transportationanddis-posalofourrawmaterials,productsandwastematerials.lToeconomicallydevelopandproducenaturalresourcesandtoconservethoseresourcesbyusingenergyefficiently.lToextendknowledgebyconductingorsupportingresearchonthesafety,healthandenvironmentaleffectsofourrawmaterials,products,processesandwastematerials.lTocommittoreduceoverallemissionsandwastegeneration.lToworkwithotherstoresolveproblemscreatedbyhandlinganddisposalofhazard-oussubstancesfromouroperations.lToparticipatewithgovernmentandothersincreatingresponsiblelaws,regulationsandstandardstosafeguardthecommunity,workplaceandenvironment.lTopromotetheseprinciplesandpracticesbysharingexperiencesandofferingassis-tancetootherswhoproduce,handle,use,transportordisposeofsimilarrawmateri-als,petroleumproductsandwastes.RecommendedPracticeforClassificationofLocationsforElectricalInstallationsatPetroleumFacilitiesClassifiedasClassI,Division1andDivision2ExplorationandProductionDepartmentManufacturing,DistributionandMarketingDepartmentAPIRECOMMENDEDPRACTICE500SECONDEDITION,NOVEMBER1997SPECIALNOTESAPIpublicationsnecessarilyaddressproblemsofageneralnature.Withrespecttopartic-ularcircumstances,local,state,andfederallawsandregulationsshouldbereviewed.APIisnotundertakingtomeetthedutiesofemployers,manufacturers,orsupplierstowarnandproperlytrainandequiptheiremployees,andothersexposed,concerninghealthandsafetyrisksandprecautions,norundertakingtheirobligationsunderlocal,state,orfed-erallaws.Informationconcerningsafetyandhealthrisksandproperprecautionswithrespecttopar-ticularmaterialsandconditionsshouldbeobtainedfromtheemployer,themanufacturerorsupplierofthatmaterial,orthematerialsafetydatasheet.NothingcontainedinanyAPIpublicationistobeconstruedasgrantinganyright,byimplicationorotherwise,forthemanufacture,sale,oruseofanymethod,apparatus,orprod-uctcoveredbyletterspatent.Neithershouldanythingcontainedinthepublicationbecon-struedasinsuringanyoneagainstliabilityforinfringementofletterspatent.Generally,APIstandardsarereviewedandrevised,reaffirmed,orwithdrawnatleasteveryfiveyears.Sometimesaone-timeextensionofuptotwoyearswillbeaddedtothisreviewcycle.ThispublicationwillnolongerbeineffectfiveyearsafteritspublicationdateasanoperativeAPIstandardor,whereanextensionhasbeengranted,uponrepublication.StatusofthepublicationcanbeascertainedfromtheAPIManufacturing,DistributionandMarket-ingDepartment[telephone[phone]].AcatalogofAPIpublicationsandmaterialsispublishedannuallyandupdatedquarterlybyAPI,1220LStreet,N.W.,Washington,D.C.20005.ThisdocumentwasproducedunderAPIstandardizationproceduresthatensureappropri-atenotificationandparticipationinthedevelopmentalprocessandisdesignatedasanAPIstandard.Questionsconcerningtheinterpretationofthecontentofthisstandardorcom-mentsandquestionsconcerningtheproceduresunderwhichthisstandardwasdevelopedshouldbedirectedinwritingtothedirectoroftheManufacturing,DistributionandMarket-ingDepartment(shownonthetitlepageofthisdocument