BS EN 60079-10-2003 爆炸性气体环境用电气设备.危险场所的分类

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【英文标准名称】:Electricalapparatusforexplosivegasatmospheres-Classificationofhazardousareas
【原文标准名称】:爆炸性气体环境用电气设备.危险场所的分类
【标准号】:BSEN60079-10-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-04-24
【实施或试行日期】:2003-04-24
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:Explosiveatmospheres;Electricalequipment;Protectedelectricalequipment;Electricalsafety;Hazardousareasclassification(forelectricalequipment);Electricalinstallations;Ventilation;Flammableatmospheres;Classificationsystems;Mathematicalcalculati
【英文主题词】:Burninggases;Classification;Classificationofareas;Classificationsystems;Combustible;Dangerzones;Definitions;Detachments;Documentations;Electricappliances;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Equipment;Explosionarea;Explosionhazard;Explosionprotection;Explosionsecurity;Explosion-proof;Explosive;Explosiveatmospheres;Explosives;Flammableatmospheres;Flammablematerials;Fuelgases;Gasatmosphere;Gases;Hazardousareasclassification(forelectricalequipment);Potentiallyexplosivematerials;Protectivemeasures;Reprocessing;Safety;Ventilation
【摘要】:ThispartofIEC60079isconcernedwiththeclassificationofhazardousareaswhereflammablegasorvapourrisksmayarise,inordertopermittheproperselectionandinstallationofapparatusforuseinsuchhazardousareas.Itisintendedtobeappliedwheretheremaybeariskofignitionduetothepresenceofflammablegasorvapour,mixedwithairundernormalatmosphericconditions(seenote2),butitdoesnotapplytoa)minessusceptibletofiredamp;b)theprocessingandmanufactureofexplosives;c)areaswhereariskmayariseduetothepresenceofignitabledustsorfibres;d)catastrophicfailureswhicharebeyondtheconceptofabnormalitydealtwithinthisstandard(seenote3);e)roomsusedformedicalpurposes;f)areaswherethepresenceofflammablemistmaygiverisetoanunpredictableriskandwhichrequirespecialconsideration(seenote5);g)domesticpremises.Thisstandarddoesnottakeintoaccounttheeffectsofconsequentialdamage.Definitionsandexplanationsoftermsaregiventogetherwiththemainprinciplesandproceduresrelatingtohazardousareaclassification.Fordetailedrecommendationsregardingtheextentofthehazardousareasinspecificindustriesorapplications,referencemaybemadetothecodesrelatingtothoseindustriesorapplications.NOTE1Forthepurposeofthisstandard,anareaisathree-dimensionalregionorspace.NOTE2Atmosphericconditionsincludevariationsaboveandbelowreferencelevelsof101,3kPa(1013mbar)and20℃(293K),providedthatthevariationshaveanegligibleeffectontheexplosionpropertiesoftheflammablematerials.NOTE3Catastrophicfailureinthiscontextisapplied,forexample,totheruptureofaprocessvesselorpipelineandeventsthatarenotpredictable.NOTE4Inanyprocessplant,irrespectiveofsize,theremaybenumeroussourcesofignitionapartfromthoseassociatedwithelectricalapparatus.Appropriateprecautionswillbenecessarytoensuresafetyinthiscontext.Thisstandardmaybeusedwithjudgementforotherignitionsources.NOTE5Mistsmayformorbepresentatthesametimeasflammablevapours.Thismayaffectthewayflammablematerialdispersesandtheextentofanyhazardousareas.Thestrictapplicationofareaclassificationforgasesandvapoursmaynotbeappropriatebecausetheflammabilitycharacteristicsofmistsarenotalwayspredictable.Whilstitcanbedifficulttodecideuponthetypeandextentofzones,thecriteriaapplicabletogasesandvapourswill,inmostcases,giveasaferesult.However,specialconsiderationshouldalwaysbegiventothedangerofignitionofflammablemists.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:62P;A4
【正文语种】:英语