IEC439-1,GB7251-1Low-voltageswitchgearandcontrolgearassembliesPt1TttddtilltttbliPart1:Type-testedandpartiallytype-testassemblies低压成套开关设备和控制设备第一部分:型式试验和部分型式试验IEC439-1&GB7251-1:ScopeScope:Low-voltageswitchgearandcontrolgearassembly(Type-testesassembliesTTAorPartiallyType-testedassembliesPTTA),theratedvoltageofwhichis=1000V,=1000HzACor1500VDC=1000Hz,ACor1500VDC范围:本标准适用于在额定电压为交流不超过1000V、频率不超过1000H额定电压为直流不超过1500V的低压成套开关超过1000Hz,额定电压为直流不超过1500V的低压成套开关设备和控制设备,包括型式试验的成套设备(TTA)和部分型式试验的成套设备(PTTA)2IEC439-1&GB7251-1:DefinitionDefinition:Acombinationofoneormorelow-voltageswitchingdevicestogetherwithassociatedcontrol,measuring,signaling,protective,regulatingequipment,etc.,completelyassembledundertheresponsibilityofthecompletelyassembledundertheresponsibilityofthemanufacturerwithalltheinternalelectricalandmechanicalinterconnectionsandstructuralparts定义:由一个或多个低压开关设备和与之相关的控制、测量、信号、保护、调节等设备,由制造厂家完成所有内部的电气和机械的连接,用结构部件完整地组装在一起的一种组合体。机械的连接,用结构部件完整地组装在一起的一种组合体。3IEC439-1&GB7251-1:TTATTA:type-testedassembliesconformingtoanestablishedtypeorsystemwithoutdeviationslikelytosignificantlyinfluencetheperformance,fromthetypicalASSEMBLYverifiedtobeinaccordancewiththisstandardverifiedtobeinaccordancewiththisstandard型式试验的低压成套开关设备和控制设备(TTA):符合一种确认的型号或系列的低压成套开关设备和控制设备,它与已通过验证符合本标准的定性成套设备相比,不存在可能会影响性能的差异。4IEC439-1&GB7251-1:PTTAPTTA:partiallytype-testedassemblies,containingbothtype-testedandnontype-testedarrangementsprovidedthatthelaterarederived(e.g.bycalculation)fromtype-testedarrangementswhichhavecompliedwiththerelevanttestsarrangementswhichhavecompliedwiththerelevanttests部分型式试验的低压成套开关设备和控制设备(PTTA):一种低压成套开关设备和控制设备,它既包含通过型式试验的设备,也包括未经型式试验的设备,而后者是从符合有关试验的通过型式试验的设备派生(例如通过计算)出来的。5IEC439-1&GB7251-1:ClassificationClassification/分类:-externaldesign(open-type,deadfront,enclosed)按外部形式分(开启式,固定面板式,柜式封闭式)-placeofinstallation(indoor,outdoor)按安装场所分(室内安装,室外安装)按安装场所分(室内安装,室外安装)-conditionofinstallationwithrespectmobility(stationary-movable)按可否移动分(固定式,可移式)-degreeofprotection(IPlevel)gp()按防护等级分(IP等级)-methodofmountingoffunctionalunit(fixed,removable)按功能单元的安装形式分(固定式,移动式)按功能单元的安装形式分(固定式,移动式)-formofinternalseparation(form1,2,3,4)按内部隔离方式分(form1,2,3,4)-typeofelectricalconnectionsoffunctionalunit(fixedremovableortypeofelectricalconnectionsoffunctionalunit(fixed,removableorwithdrawable)按功能单元的电气连接方式分(固定式,移动式或抽出式)6IEC439-1&GB7251-1:TypeTestsTypetests/型式试验:-verificationoftemperatureriselimits温升极限的验证-verificationofdielectricproperties介电性能验证介电性能验证-verificationofshort-circuitwithstandstrength短路耐受强度验证-verificationofcontinuityoftheprotectivecircuityp保护电路有效性验证-verificationofclearancesandcreepagedistances电气间隙和爬电距离验证电气间隙和爬电距离验证-verificationofmechanicaloperation机械操作验证-verificationofdegreeofprotectionverificationofdegreeofprotection防护等级验证7IEC439-1&GB7251-1:RoutinetestsRoutinetests/出厂试验:-inspectionofassembly(includingwiring)andelectricaloperation检查成套设备,应包括检查接线、进行通电操作试验检查成套设备,应包括检查接线、进行通电操作试验-dielectrictest介电强度试验-checkingofprotectivemeasuresandoftheelectricalcontinuityofcheckingofprotectivemeasuresandoftheelectricalcontinuityoftheprotectivecircuits防护措施和保护电路的电连续性检查8