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SHJ 21-1990 石油化工企业仪表保温及隔离 吹洗设计规范

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标准名称:石油化工企业仪表保温及隔离 吹洗设计规范
中标分类: 化工 >> 化工机械与设备 >> 化工专用仪器仪表
替代情况:被SH 3021-2001代替 被SH 3126-2001代替
发布日期:
实施日期:2002-01-01
首发日期:
作废日期:
出版日期:
页数:21页
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所属分类: 化工 化工机械与设备 化工专用仪器仪表
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【英文标准名称】:Electromagneticcompatibility(EMC)-Part3-6:Limits-AssessmentofemissionlimitsfortheconnectionofdistortinginstallationstoMV,HVandEHVpowersystems
【原文标准名称】:电磁兼容性(EMC).第3-6部分:限值.变形装置对MV、HV和EHV动力系统的连接用排放限值的评估
【标准号】:IEC/TR61000-3-6-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-02
【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】:评估;定义;畸变系数;畸变测量;电气工程;电磁兼容性;EMC;放射电流;发射;供能系统(建筑物);闪光;闪烁计;谐波电流;谐波;高压设备;高压系统;阻抗;影响量;极限(数学);低压电源;电力网供电;数学计算;测量;常电压网;中压设备;供电系统;规范(验收);启动电流;叠加;电话系统;测试;试验条件;电压波动
【英文主题词】:Assessment;Definitions;Distortionfactors;Distortionmeasurement;Electricalengineering;Electromagneticcompatibility;EMC;Emissioncurrent;Emitting;Energysupplysystems(buildings);Evaluations;Flicker;Flickermeter;Harmoniccurrent;Harmonics;High-tensionunits;High-voltagesystem;Impedance;Influencequantities;Limits(mathematics);Lowvoltagemains;Mainssupply;Mathematicalcalculations;Measurement;Mediumvoltagenets;Medium-voltageinstallations;Powersupplysystem;Specification(approval);Startingcurrent;Superpositions;Telephonesystems;Testing;Testingconditions;Voltagefluctuations
【摘要】:ThisTechnicalReport,whichisinformativeinitsnature,providesguidanceonprincipleswhichcanbeusedasthebasisfordeterminingtherequirementsfortheconnectionofdistortinginstallationstoMV,HVandEHVpublicpowersystems(LVinstallationsarecoveredinotherIECdocuments).Forthepurposesofthisreport,adistortinginstallationmeansaninstallation(whichmaybealoadoragenerator)thatproducesharmonicsand/orinterharmonics.Theprimaryobjectiveistoprovideguidancetosystemoperatorsorownersonengineeringpractices,whichwillfacilitatetheprovisionofadequateservicequalityforallconnectedcustomers.Inaddressinginstallations,thisdocumentisnotintendedtoreplaceequipmentstandardsforemissionlimits.Thereportaddressestheallocationofthecapacityofthesystemtoabsorbdisturbances.Itdoesnotaddresshowtomitigatedisturbances,nordoesitaddresshowthecapacityofthesystemcanbeincreased.Sincetheguidelinesoutlinedinthisreportarenecessarilybasedoncertainsimplifyingassumptions,thereisnoguaranteethatthisapproachwillalwaysprovidetheoptimumsolutionforallharmonicsituations.Therecommendedapproachshouldbeusedwithflexibilityandjudgmentasfarasengineeringisconcerned,whenapplyingthegivenassessmentproceduresinfullorinpart.Thesystemoperatororownerisresponsibleforspecifyingrequirementsfortheconnectionofdistortinginstallationstothesystem.Thedistortinginstallationistobeunderstoodasthecustomer’scompleteinstallation(i.e.includingdistortingandnon-distortingparts).Problemsrelatedtoharmonicsfallintotwobasiccategories.?Harmoniccurrentsthatareinjectedintothesupplysystembyconvertersandharmonicsources,givingrisetoharmonicvoltagesinthesystem.Bothharmoniccurrentsandresultingvoltagescanbeconsideredasconductedphenomena.?Harmoniccurrentsthatinduceinterferenceintocommunicationsystems.Thisphenomenonismorepronouncedathigherorderharmonicfrequenciesbecauseofincreasedcouplingbetweenthecircuitsandbecauseofthehighersensitivityofthecommunicationcircuitsintheaudiblerange.Thisreportgivesguidancefortheco-ordinationoftheharmonicvoltagesbetweendifferentvoltagelevelsinordertomeetthecompatibilitylevelsatthepointofutilisation.Therecommendationsinthisreportdonotaddressharmonicinterferencephenomenaincommunicationcircuits(i.e.onlythefirstoftheabovecategoriesisaddressed).ThesedisturbancesneedtobeaddressedintermsofinternationaldirectivesconcerningtheProtectionofTelecommunicationLinesagainstHarmfulEffectsfromElectricPowerandElectrifiedRailwayLines,InternationalTelecommunicationUnion,ITU-TDirectives[1]2orintermsoflocallyapplicablestandardssuchas[2],[3]or[4].NOTETheboundariesbetweenthevariousvoltagelevelsmaybedifferentfordifferentcountries(seeIEV601-01-28[32]).Thisreportusesthefollowingtermsforsystemvoltages:–lowvoltage(LV)referstoUn≤1kV;–mediumvoltage(MV)refersto1kV【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:58P;A4
【正文语种】:英语


【英文标准名称】:Distributionautomationusingdistributionlinecarriersystems-Part4:Datacommunicationprotocols;Section42:Applicationprotocols;Applicationlayer(IEC61334-4-42:1996);GermanversionEN61334-4-42:1996
【原文标准名称】:配电线路载波系统的配电自动化.第4部分:数据通信协议.第42节:应用协议.应用层
【标准号】:DINEN61334-4-42-1997
【标准状态】:现行
【国别】:德国
【发布日期】:1997-09
【实施或试行日期】:1997-09-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:遥控技术;数据通信;协议;应用层;网络控制系统;自动化;数据传送;信息技术;数据处理;建筑自动化
【英文主题词】:Applicationlayer;Automation;Controltechnology;Datacommunication;Dataprocessing;Datatransfer;Informationtechnology;MAC;Networkcontrolsystem;Protocols;Remotecontroltechnology
【摘要】:ThespecificationofthesectionsofIEC1334-4applytothecommunicationthroughthesocalleddistributionlinecarriertechnology(DLC)onbothlowandmediumvoltagedistributionnetwork.Theapplicationrangebasedontelecommunicationprocessesiswideandcannotbedescribedexhaustivelyinthissection;applicationexamplesare:controlandmonitoringofthedistributionnetwork,broadcastingoforders,controlofuserinterfaces,publiclightning,trafficligthssupervision,automaticmeterreading,etc.
【中国标准分类号】:F21
【国际标准分类号】:33_040_60
【页数】:32P;A4
【正文语种】:德语