BS EN 61000-2-12-2003 电磁兼容性(EMC).环境.公共中压供电系统中低频传导干扰及信号的兼容性等级

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【英文标准名称】:Electromagneticcompatibility(EMC)-Environment-Compatibilitylevelsforlow-frequencyconducteddisturbancesandsignallinginpublicmedium-voltagepowersupplysystems
【原文标准名称】:电磁兼容性(EMC).环境.公共中压供电系统中低频传导干扰及信号的兼容性等级
【标准号】:BSEN61000-2-12-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-09-24
【实施或试行日期】:2003-09-24
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电网;干扰抑制;测量;极限(数学);电磁学;兼容性;电力系统;电磁兼容性;影响量;干扰;电磁的;电气工程;环境条件;定义
【英文主题词】:Alternatingcurrent;Compatibility;Definition;Definitions;Electricpowernetworks;Electricpowersystems;Electricalengineering;Electromagnetic;Electromagneticcompatibility;Electromagneticinterferences;Electromagnetism;EMC;Energysupplysystems(buildings);Environmentalconditions;Environmentaleffects;Influencequantities;Interferencerejections;Interferences;Interferingemissions;Limits(mathematics);Lowvoltagemains;Measurement;Mediumvoltage;Signaltransmission
【摘要】:ThispartofIEC61000isconcernedwithconducteddisturbancesinthefrequencyrangefrom0kHzto9kHz,withanextensionupto148,5kHzspecificallyformainssignallingsystems.Itgivescompatibilitylevelsforpublicmediumvoltagea.c.distributionsystemshavinganominalvoltagebetween1kVand35kVandanominalfrequencyof50Hzor60Hz(seeIEC60038).Compatibilitylevelsarespecifiedforelectromagneticdisturbancesofthetypeswhichcanbeexpectedinpublicmediumvoltagepowersupplysystems,forguidancein:a)thelimitstobesetfordisturbanceemissionintopublicpowersupplysystems(includingtheplanninglevelsdefinedin3.1.5);b)theimmunitylimitstobesetbyproductcommitteesandothersfortheequipmentexposedtotheconducteddisturbancespresentinpublicpowersupplysystems.Thedisturbancephenomenaconsideredare:·voltagefluctuationsandflicker;·harmonicsuptoandincludingorder50;·inter-harmonicsuptothe50harmonic;·voltagedistortionsathigherfrequencies(above50harmonic);·voltagedipsandshortsupplyinterruptions;·voltageunbalance;·transientovervoltages;·powerfrequencyvariation;·d.c.components;·mainssignalling.MostofthesephenomenaaredescribedinIEC61000-2-1.Incaseswhereitisnotyetpossibletoestablishcompatibilitylevels,someinformationisprovided.Themedium-voltagesystemscoveredbythisstandardarepublicdistributionsystemssupplyingeither:a)privateinstallationsinwhichequipmentisconnecteddirectlyorthroughtransformers,orb)substationsfeedingpubliclow-voltagedistributionsystems.Thecompatibilitylevelsspecifiedinthisstandardapplyatthepointofcommoncouplinginthecaseof(a)andatthemedium-voltageterminalsofthesubstationinthecaseof(b).SeeClause4.
【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:32P.;A4
【正文语种】:英语


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【英文标准名称】:StandardPracticeforSamplingandAnalysisofBuilt-UpRoofSystemsDuringApplication
【原文标准名称】:施用中组合屋顶系统的取样和分析用标准实施规程
【标准号】:ASTMD3617-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;沥青;沥青制品;组合屋顶材料;建筑;施工材料;薄膜;工艺;屋顶层;屋顶油毡;屋顶;抽样方法;防水材料
【英文主题词】:Analysis;Bitumens;Bituminousproducts;Built-uproofing;Construction;Constructionmaterials;Membranes;Processes;Roofcoverings;Roofingfelts;Roofs;Samplingmethods;Waterproofingmaterials
【摘要】:
【中国标准分类号】:Q17
【国际标准分类号】:91_100_50
【页数】:3P;A4
【正文语种】:英语


Product Code:SAE AMS5712
Title:Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 53Ni - 19Cr - 11Co - 9.8Mo - 3.2Ti - 1.6Al - 0.006B, Vacuum Melted, Solution Heat Treated, Precipitation Hardenable
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.