ANSI T1.249-1996 电信.信息交换.北美洲电信工业用计算机辅助设计办公中心命名用编码结构和应用

上一篇: ANSI T1.308-1996 电信.中心电信局的设备.静电放电抗扰要求
下一篇: ANSI T1.112-1996 电信.第7信号发送系统.信号发送连接控制部分(SCCP)

【英文标准名称】:IRONANDSTEEL.HEATTREATABLESPECIALSTEELSANDSTAINLESSSTEELSFOREXTERNALLYTHREADEDFASTENERSFORUSEATLOWTEMPERATURES.
【原文标准名称】:铁和钢.低温下使用的外螺纹紧固件热处理后特殊钢和不锈钢
【标准号】:NFA35-559-1983
【标准状态】:作废
【国别】:法国
【发布日期】:1983-06
【实施或试行日期】:1983-05-19
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:H44
【国际标准分类号】:77_140_10;21_060_01
【页数】:7P;A4
【正文语种】:其他


【英文标准名称】:Insulationcoordinationforequipmentwithinlow-voltagesystems-Part5:Acomprehensivemethodfordeterminingclearancesandcreepagedistancesequaltoorlessthan2mm
【原文标准名称】:低压系统内设备的绝缘配合.等于或低于2mm的余隙距离和漏电距离的综合测定法
【标准号】:BSEN60664-5-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2004-02-16
【实施或试行日期】:2004-02-16
【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】:湿度;电气设备;绝缘;印制电路;定义;试验;调查;漏电距离;低电压;电驱动装置;电子设备及元件;漏电路径;低压电器;绝缘材料;尺寸选定;电气器具;绝缘配合;测量;设备;电气工程;余隙距离;间隙;规范(验收);电压;研究方法;电绝缘材料;低压绝缘子;集成电路;额定值;低压设备
【英文主题词】:Clearancedistances;Clearances;Creepagedistances;Definition;Definitions;Dimensioning;Electricappliances;Electricalengineering;Electricalequipment;Electricalinsulatingmaterials;Electrically-operateddevices;Electronicequipmentandcomponents;Equipment;Humidity;Insulatingmaterials;Insulationcoordination;Insulations;Integratedcircuits;Leakagepaths;Lowvoltage;Low-voltageequipment;Low-voltageinstallations;Low-voltageinsulator;Measurement;Printedcircuits;Ratings;Researchmethods;Specification(approval);Surveys;Testing;Voltage
【摘要】:ThispartofIEC60664specifiesthedimensioningofclearancesandcreepagedistancesforspacingsequaltoorlessthan2mmforprintedwiringboardandequivalentconstructions,wheretheclearanceandthecreepagedistanceareidenticalandarealongthesurfaceofsolidinsulation,suchasthepathsdescribedinexample1,example5andexample11of4.2ofPart1.ThedimensioningismoreprecisethanthatprovidedbyPart1.NOTE1Iftheprecisionprovidedbythisstandardisnotrequired,Part1maybeappliedinstead.Thisstandardcanonlybeusedasanentirety.ItisnotpermittedtoselectoneormoreclausesfromthisstandardandtousetheminplaceofthecorrespondingclausesofPart1.Whenthisstandardisappliedtothedimensioningofclearancesandcreepagedistances,allclausesshallbeusedinplaceofthecorrespondingclausesgiveninPart1.Forclearancesandcreepagedistanceslargerthan2mmandforsolidinsulationingeneral,Part1applies.NOTE2Thelimitationtodistancesequaltoorlessthan2mmappliestobasicorsupplementaryinsulation.Thetotaldistanceofareinforcedordoubleinsulationmaybelargerthan2mm.Thisstandardisbasedonthefollowingcriteriafordimensioning:-minimumclearancesindependentofthemicro-environment(seeTable2);-minimumcreepagedistancesforpollutiondegrees1,2and3toavoidfailureduetotracking(seeTable4);-minimumcreepagedistancestoavoidflashoveracrosstheinsulatingsurface(seeTable5).NOTE3Forminimumcreepagedistancestomaintainadequateinsulationresistance,seeTableF.2.NOTE4Thisstandardisnotapplicableformicro-environmentalconditionsworsethanpollutiondegree3orhumiditylevel3.Atestmethodisspecifiedforallocatingunclassifiedinsulatingmaterialtotherelevantwateradsorptiongroup.note:1"Part1"referstoIEC60664-1.
【中国标准分类号】:K31
【国际标准分类号】:29_080_30
【页数】:42P.;A4
【正文语种】:英语