电气间隔和爬电距离

EN60335-1

Creepagedistances,clearancesdistances

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IEC/EN规范版本区别：-IEC/EN60335-1:家用电器产品通用规范-IEC,Amendment:规范的修订版本1)A1:2003,阐明2003年对规范进展了修订，版本编号:A12)同一版本IEC规范只允许两次修订,之后将公布新版本规范.IEC60335-1:2001(Fourthed)+A1:2004+A2:2006(如今IEC60335-1更新到IEC60335-1:2021(Fiveed))-EN规范的修订版本(规范有效期DOP和DOW确定)EN60335-1:2002+A11:2004+A1:2004+A12:2006+A2:2006+A13:2021+A14:2021+A15:2021

什么是DOP/DOWDOP〔DateofPublication〕:根据IEC规范,转化为国家规范的最后期限,也即是EN新规范公布日期.DOW:旧规范被替代的最后期限,即产品在这之前必需完成规范更新.(如dow:2007-10-1,那么是2007-10-1前需求作规范更新.)假设在新版本的规范中声明了旧版本规范的DOW，那么旧版本的规范在DOW后自动失效。无论能否到了证书声明的有效期，根据旧版本规范的证书和报告也自动失效。如需延期，必需进展规范晋级，根据新版本的规范要求重新恳求证书。EN60335-1:2002/A14如下面DOW：2021-05-01，即是A13规范将于2021-05-01自动失效，A14开场强迫执行.EN60335-1:2002/A15如下面DOW：2021-05-02，即是A14规范将于2021-05-02自动失效，A15开场强迫执行.Cls29,Creepagedistances,clearancesdistancesandthroughinsulation电气间隙决议某一电气间歇能否满足规范所允许的最小要求需求确定以下四个参数:-绝缘种类,即他所要判的地方是根本/加强/功能/附加绝缘里的那一种.-额定脉冲电压(RatedImpluseVoltage)过电压类别(OverVoltageCategory)和任务电压决议该电路的额定脉冲电压.-污染等级(1,2,3)-产品任务电压如何确定电气间隔最小值：确定产品适用电压.在本规范范围内的器具普通为II类过电压.污染等级判别,普通参考详细产品所属的公用规范.绝缘种类,即他所要判的地方是根本/加强/功能/附加绝缘里的那一种.在丈量电气间隙时,裸露导体上施加2N的外力;可触及外壳施加30N的外力.假设构造间隔受磨损，变形，部件运动或装配影响时，电气间隔要添加0.5mm.Accordingtotabel15andtabel16,comfirmedbasicinsulation,supplementinsulation,reinforcedinsulation&functionalinsulationofminimumClearancesdistances(suchas,workingvoltage:220-240V,overvolatgecategoryII)asbelow:InsulationtypeDistanceBasicinsulation1.5mmSupplementaryinsulation1.5mmReinforcedinsulation3mmFunctionalinsulation1.5mmExampleforbasicinsulation(1.5mm)Theterminalsoftubularsheathedheatingelementscounted1mm,ifthemicroenvironmentispollutiondegree1.Exampleforsupplementinsulation(1.5mm)TheminimumclearanceissameasthebasicinsulationExampleforreinforcedinsulation(3mm)Thereinforcedinsulationusingthenextstepforratedimpulsevoltage.Exampleforfunctionalinsulation(1.5mm)Thefunctionalinsulationisbetweenlivepartsofdifferentpotential.Theminimumclearanceissameasthebasicinsulation.爬电间隔决议某一爬电间隔能否满足规范所允许的最小要求需求确定以下四个参数:-绝缘种类,即他所要判的地方是根本/加强/功能/附加绝缘里的那一种.-产品任务电压.-污染等级(1,2,3)-资料的漏电起痕指数.资料组别:a.materialgroupI:600<=CTIb.materialgroupII:400<=CTI<600c.materialgroupIIIa:175<=CTI<400d.materialgroupIIIb:100<=CTI<175在丈量爬电间隔时,裸露导体上施加2N的外力;可触及外壳施加30N的外力.Accordingtotabel17andtabel18,comfirmedbasicinsulation,supplementinsulation,reinforcedinsulation&functionalinsulationofminimumcreepagedistances(suchasatpollutiondegree3,materialgroup:IIIa/IIIb,workingvoltage:220-240V)asbelow:InsulationtypeDistanceBasicinsulation4mmSupplementaryinsulation4mmReinforcedinsulation8mmFunctionalinsulation3.2mmThewindingwiretouchthemotororlessspecifiedmincreepagedistancescorebytestfinger(testprobeB)with2Nforce.ExampleforbasicinsulationNote1:Creepagedistanceofwindingneednotbegreaterthantheassociatedclearancespecifiedintable161.5mm4mmExampleforsupplementinsulationThecreepagedistanceofsupplementaryinsulationwasbetweeninternalwireandaccessibleenclouse.Internalwirecanbetouched.(0mm)ExampleforreinforcedinsulationThecreepagedistancesofreinforcedinsulationshallnotlessthan8mm.Asresult,thecreepagedistancewasmeasured7.5mmbetweenleadsofneonlampandthelampcoverjoint.并不是三类构造或者SELV部分是可以平安触及或者不带电的.假设强电与SELV电路之间少于8mm间隔,是不能触及，并以为是liveparts.如低压电子线路并没有与危险带电体有效平安隔离，该电子

线路必需与可触及外表之间应满足双重绝缘和加强绝缘ExampleforfunctionalinsulationNote1:Creepagedistancesmaybereducediftheappliancecomplieswithclause19withthefunctionalinsulationshort-circuited.Forexample:Electroniccomponent.不同极性的带电线路之间应满足功能绝缘.Thetransistorleads<limitationofcreepagedistance.如功能绝缘被短路时，产品仍符合Cls19，无危险发生，其电气间隙和爬电间隔的要求可减少。应留意只需根本绝缘的内部导线经过绝缘外壳缝隙