【英文标准名称】:Masonrycement;term,requirements,tests,control
【原文标准名称】:抹灰和砌墙用粘合剂.概念.要求.检验.监督
【标准号】:DIN4211-1989
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【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】:Q27
【国际标准分类号】:
【页数】:
【正文语种】:


【英文标准名称】:Electromagneticcompatibility(EMC)-Part2-2:Environment;Compatibilitylevelsforlow-frequencyconducteddisturbancesandsignallinginpubliclow-voltagepowersupplysystems
【原文标准名称】:电磁兼容性(EMC).第2-2部分:环境.在公用低压供电系统中低频传导骚扰和信号传输的兼容性水平
【标准号】:IEC61000-2-2-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-03
【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/SC77A
【标准类型】:()
【标准水平】:()
【中文主题词】:信号传输;电故障;低频工程;定义;定义;兼容性;极限(数学);环境条件;电磁兼容性;电磁兼容性;兼容水平;低电压;电网;干扰抑制;电磁学;影响量;磁场效应;磁电效应;电磁的;电力系统;电磁场;电气工程;可混用性;干扰;测量;低频
【英文主题词】:Compatibilitalevel;Compatibility;Definitions;Electricpowernetworks;Electricpowersystems;Electricalengineering;Electricalfaults;Electromagnetic;Electromagneticcompatibility;Electromagneticfields;Electromagnetism;EMC;Energysupplysystems(buildings);Environmentalcondition;Environmentalconditions;Frequencyranges;Influencequantities;Interferencerejections;Interferences;Limits(mathematics);Lowfrequencies;Lowvoltage;Low-frequencyengineering;Magneticfieldeffects;Magnetoelectriceffects;Measurement;Signaltransmission;Voltagefluctuations
【摘要】:Thisstandardisconcernedwithconducteddisturbancesinthefrequencyrangefrom0kHzto9kHz,withanextensionupto148,5kHzspecificallyformainssignallingsystems.Itgivescompatibilitylevelsforpubliclowvoltagea.c.distributionsystemshavinganominalvoltageupto420V,single-phaseor690V,three-phaseandanominalfrequencyof50Hzor60Hz.Thecompatibilitylevelsspecifiedinthisstandardapplyatthepointofcommoncoupling.Atthepowerinputterminalsofequipmentreceivingitssupplyfromtheabovesystemstheseveritylevelsofthedisturbancescan,forthemostpart,betakentobethesameasthelevelsatthepointofcommoncoupling.Insomesituationsthisisnotso,particularlyinthecaseofalonglinededicatedtothesupplyofaparticularinstallation,orinthecaseofadisturbancegeneratedoramplifiedwithintheinstallationofwhichtheequipmentformsapart.Compatibilitylevelsarespecifiedforelectromagneticdisturbancesofthetypeswhichcanbeexpectedinpubliclowvoltagepowersupplysystems,forguidancein:-thelimitstobesetfordisturbanceemissionintopublicpowersupplysystems(includingtheplanninglevelsdefinedin3.1.5).-theimmunitylimitstobesetbyproductcommitteesandothersfortheequipmentexposedtotheconducteddisturbancespresentinpublicpowersupplysystems.Thedisturbancephenomenaconsideredare:-voltagefluctuationsandflicker;-harmonicsuptoandincludingorder50;-inter-harmonicsuptothe50harmonic;-voltagedistortionsathigherfrequencies(abovethe50harmonic);-voltagedipsandshortsupplyinterruptions;-voltageunbalance;-transientovervoltages;-powerfrequencyvariation;-d.c.components;-mainssignalling.MostofthesephenomenaaredescribedinIEC61000-2-1.Incaseswhereitisnotyetpossibletoestablishcompatibilitylevels,someinformationisprovided.
【中国标准分类号】:L06
【国际标准分类号】:33_100_10
【页数】:57P.;A4
【正文语种】:英语