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【英文标准名称】:Insulationcoordinationforequipmentwithinlow-voltagesystems-Part4:Considerationsofhigh-frequencyvoltagestress
【原文标准名称】:低压系统内设备的绝缘配合.第4部分:高频电压应力的考虑
【标准号】:IEC60664-4-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC109
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;尺寸选定;定义;电气器具;规范(验收);检验;电气安全;防电击;设备;低电压;电驱动装置;电绝缘;电绝缘材料;绝缘;设计;低压设备;绝缘配合;跟踪系数;间隙;配合;低压绝缘子;高频;漏电路径;低压电器;电压应力;合作;绝缘材料;试验
【英文主题词】:Clearances;Co-ordination;Coordination;Definitions;Design;Dimensioning;Electricappliances;Electricalengineering;Electricalinsulatingmaterials;Electricalinsulation;Electricalsafety;Electrically-operateddevices;Equipment;Highfrequencies;Inspection;Insulatingmaterials;Insulationcoordination;Insulations;Interfacesofelectricalconnections;Leakagepaths;Lowvoltage;Low-voltageequipment;Low-voltageinstallations;Low-voltageinsulator;Protectionagainstelectricshocks;Specification(approval);Testing;Trackingindex;Voltagestress
【摘要】:ThispartofIEC60664dealswithbasic,supplementaryandreinforcedinsulationsubjectedtohigh-frequencyvoltagestresswithinlow-voltageequipment.Thedimensioningvaluesdirectlyapplyforbasicinsulation;forreinforcedinsulationadditionalrequirementsapplyaccordingtoPart1.Itisapplicableforthedimensioningofclearances,creepagedistancesandsolidinsulationstressedbyanytypeofperiodicvoltageswithafundamentalfrequencyabove30kHzandupto10MHz.ThispartofIEC60664canonlybeusedtogetherwithIEC60664-1orwithIEC60664-5(inthisstandardcalledPart1orPart5).ByusingPart1orPart5togetherwiththispartthefrequencylimitofPart1orPart5isextendedtofrequencieshigherthan30kHz.ThispartalsoappliestoPart3forfrequenciesgreaterthan30kHzandprotectionoftype1.Fortype2protectionthisquestionisunderconsideration.NOTE1Dimensioningvaluesforfrequenciesabove10MHzareunderconsideration.NOTE2Thisstandarddoesnotconsiderthehigh-frequencyemissiontothemains.Innormaluseofequipment,itisassumedthattheinterferenceofhigh-frequencyvoltagesemittedtothemainsisnegligiblewithrespecttoinsulationstress.Thereforeitisnotnecessarytotakeitintoaccount.Itappliestoequipmentforuseupto2000mabovesealevelhavingaratedvoltageuptoa.c.1000V.Itspecifiestherequirementsforclearances,creepagedistancesandsolidinsulationforequipmentbasedupontheirperformancecriteria.Itincludesmethodsofelectrictestingwithrespecttoinsulationcoordination.Theminimumclearancesspecifiedinthispartdonotapplywhereionizedgasesoccur.Specialrequirementsforsuchsituationsmaybespecifiedatthediscretionoftherelevanttechnicalcommittee.Thispartdoesnotdealwithdistances-throughliquidinsulation,-throughgasesotherthanair,-throughcompressedair.NOTE3Highervoltagesmayexistininternalcircuitsoftheequipment.NOTE4Requirementsforaltitudesexceeding2000mcanbederivedfromTableA.2ofAnnexAofPart1.Theobjectofthisstandardistoguidetechnicalcommitteesresponsiblefordifferentequipmentinordertorationalisetheirrequirementssothatinsulationcoordinationisachievedwhenspecifyingclearancesinair,creepagedistancesandsolidinsulationforequipment.
【中国标准分类号】:K04
【国际标准分类号】:29_080_30
【页数】:144P.;A4
【正文语种】:英语