BSEN500181995

BRITISHSTANDARDBSEN50018:1995Electricalapparatusforpotentiallyexplosiveatmospheres—Flameproofenclosures“d”TheEuropeanStandardEN50018:1994hasthestatusofaBritishStandardUDC621.31-213.34-213.6-78.614.833.4.5:001.4:620.1:62-777LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMar2723:23:43GMT+00:002007,UncontrolledCopy,(c)BSIBSEN50018:1995ThisBritishStandard,havingbeenpreparedunderthedirectionoftheElectrotechnicalStandardsPolicyCommittee,waspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton15January1995©BSI12-1998ThefollowingBSIreferencesrelatetotheworkonthisstandardCommitteereferenceGEL/114Draftforcomment91/22962DCISBN0580227758CooperatingorganizationsTheEuropeanCommitteeforElectrotechnicalStandardization(CENELEC),underwhosesupervisionthisEuropeanStandardwasprepared,comprisesthenationalcommitteesofthefollowingcountries:AustriaItalyBelgiumLuxembourgDenmarkNetherlandsFinlandNorwayFrancePortugalGermanySpainGreeceSwedenIcelandSwitzerlandIrelandUnitedKingdomAmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMar2723:23:43GMT+00:002007,UncontrolledCopy,(c)BSIBSEN50018:1995©BSI12-1998iContentsPageCooperatingorganizationsInsidefrontcoverNationalforewordiiForeword2TextofEN500185NationalannexNA(informative)Committeesresponsible35NationalannexNB(informative)Cross-referencesInsidebackcoverLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMar2723:23:43GMT+00:002007,UncontrolledCopy,(c)BSIBSEN50018:1995ii©BSI12-1998NationalforewordThisBritishStandardhasbeenpreparedunderthedirectionoftheGeneralElectrotechnicalStandardsPolicyCommitteeandistheEnglishlanguageversionofEN50018Electricalapparatusforpotentiallyexplosiveatmospheres—Flameproofenclosures“d”,publishedbytheEuropeanCommitteeforElectrotechnicalStandardization(CENELEC).ThisstandardshouldbereadinconjunctionwithBSEN50014:1993Electricalapparatusforpotentiallyexplosiveatmosphere—Generalrequirements,whichitsupplements.Productcertification.UsersofthisBritishStandardareadvisedtoconsiderthedesirabilityofthirdpartycertificationofproductconformitywiththisBritishStandardbasedontestingandcontinuingproductsurveillance,whichmaybecoupledwithassessmentofasupplier’squalitysystemsagainsttheappropriatePartofBS5750.EnquiriesastotheavailabilityofthirdpartycertificationschemesareforwardedbyBSItotheAssociationofCertificationBodies.Ifathirdpartycertificationschemedoesnotalreadyexist,usersshouldconsiderapproachinganappropriatebodyfromthelistofassociationmembers.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,theENtitlepage,pages2to36,aninsidebackcoverandabackcover.Thisstandardhasbeenupdated(seecopyrightdate)andmayhavehadamendmentsincorporated.Thiswillbeindicatedintheamendmenttableontheinsidefrontcover.LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMar2723:23:43GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN50018August1994UDC621.31-213.34-213.6-78.614.833.4/.5:001.4:620.1:62-777SupersedesEN50018:1977anditsamendmentsTobereadinconjuctionwithEN50014:1992Descriptors:Electricalapparatus,potentiallyexplosiveatmosphere,explosiveatmosphere,explosionproofing,specificrequirement,flameproofenclosure“d”EnglishversionElectricalapparatusforpotentiallyexplosiveatmospheres—Flameproofenclosures“d”MatérielélectriquepouratmosphèresexplosiblesEnveloppeantidéflagrante“d”ElektrischeBetriebsmittelfürexplosionsgefährdeteBereicheDruckfesteKapselung“d”ThisEuropeanStandardwasapprovedbyCENELECon8March1994.CENELECmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENELECmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENELECmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENELECmembersarethenationalelectrotechnicalcommitteesofAustria,Belgium,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.CENELECEuropeanCommitteeforElectrotechnicalStandardizationComitéEuropéendeNormalisationElectrotechniqueEuropäischesKomiteefürElektrotechnischeNormungCentralSecretariat:ruedeStassart35,B-1050Brussels©1994CopyrightreservedtoCENELECmembersRef.No.EN50018:1994ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMar2723:23:43GMT+00:002007,UncontrolledCopy,(c)BSIEN50018:1994©BSI12-19982ForewordThisEuropeanStandardwaspreparedbyCENELECSubcomm