MIL-STD-2126 (NOTICE 1)
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MIL-STD-2126 (NOTICE 1), MILITARY STANDARD: REDUCED SMOKE ROCKET MOTOR PROCESSING & TEST PROCEDURES (SIDEWINDER) (05 DEC 1995) [NO S/S DOCUMENT].
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【英文标准名称】:Roundwashersforhigh-strengthstructuralsteelbolting
【原文标准名称】:钢结构高强度螺栓用圆垫圈
【标准号】:DIN6916-1962
【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】:J13
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Electromagneticcompatibility(EMC)-Part3-7:Limits-AssessmentofemissionlimitsfortheconnectionoffluctuatingloadinstallationstoMV,HVandEHVpowersystems
【原文标准名称】:电磁兼容性(EMC).第3-7部分:限值.变动载荷装置对MV、HV和EHV动力系统的连接用排放限值的评估
【标准号】:IEC/TR61000-3-7-2008
【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】:定义;电气工程;电磁兼容性;EMC;闪光;影响量;低频;低压电源;供电系统;电压;电压波动
【英文主题词】:Definitions;Electricalengineering;Electromagneticcompatibility;EMC;Flicker;Influencequantities;Lowfrequencies;Lowvoltagemains;Powersupplysystem;Voltage;Voltagefluctuations
【摘要】:ThispartofIEC61000providesguidanceonprincipleswhichcanbeusedasthebasisfordeterminingtherequirementsfortheconnectionoffluctuatinginstallationstoMV,HVandEHVpublicpowersystems(LVinstallationsarecoveredinotherIECdocuments).Forthepurposesofthisreport,afluctuatinginstallationmeansaninstallation(whichmaybealoadoragenerator)thatproducesvoltageflickerand/orrapidvoltagechanges.Theprimaryobjectiveistoprovideguidancetosystemoperatorsorownersonengineeringpracticeswhichwillfacilitatetheprovisionofadequateservicequalityforallconnectedcustomers.Inaddressinginstallations,thisdocumentisnotintendedtoreplaceequipmentstandardsforemissionlimits.Thisreportaddressestheallocationofthecapacityofthesystemtoabsorbdisturbances.Itdoesnotaddresshowtomitigatedisturbances,nordoesitaddresshowthecapacityofthesystemcanbeincreased.Sincetheguidelinesoutlinedinthisreportarenecessarilybasedoncertainsimplifyingassumptions,thereisnoguaranteethatthisapproachwillalwaysprovidetheoptimumsolutionforallflickersituations.Therecommendedapproachshouldbeusedwithflexibilityandengineeringjudgmentasfarasengineeringisconcerned,whenapplyingthegivenassessmentproceduresinfullorinpart.Thesystemoperatororownerisresponsibleforspecifyingrequirementsfortheconnectionoffluctuatinginstallationstothesystem.Thefluctuatinginstallationistobeunderstoodasthecustomer’scompleteinstallation(i.e.includingfluctuatingandnonfluctuatingparts).Problemsrelatedtovoltagefluctuationsfallintotwobasiccategories:?Flickereffectfromlightsourcesasaresultofvoltagefluctuations;?Rapidvoltagechangesevenwithinthenormaloperationalvoltagetolerancesareconsideredasadisturbingphenomenon.Thereportgivesguidanceforthecoordinationoftheflickeremissionsbetweendifferentvoltagelevelsinordertomeetthecompatibilitylevelsatthepointofutilisation.Thisreportprimarilyfocusesoncontrollingorlimitingflicker,butaclauseisincludedtoaddressthelimitationofrapidvoltagechanges.NOTETheboundariesbetweenthevariousvoltagelevelsmaybedifferentfordifferentcountries(seeIEV601-01-28)[16].Thisreportusesthefollowingtermsforsystemvoltage:?lowvoltage(LV)referstoUn≤1kV;?mediumvoltage(MV)refersto1kV
【国际标准分类号】:33_100_01
【页数】:65P;A4
【正文语种】:英语
【原文标准名称】:钢结构高强度螺栓用圆垫圈
【标准号】:DIN6916-1962
【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】:J13
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Electromagneticcompatibility(EMC)-Part3-7:Limits-AssessmentofemissionlimitsfortheconnectionoffluctuatingloadinstallationstoMV,HVandEHVpowersystems
【原文标准名称】:电磁兼容性(EMC).第3-7部分:限值.变动载荷装置对MV、HV和EHV动力系统的连接用排放限值的评估
【标准号】:IEC/TR61000-3-7-2008
【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】:定义;电气工程;电磁兼容性;EMC;闪光;影响量;低频;低压电源;供电系统;电压;电压波动
【英文主题词】:Definitions;Electricalengineering;Electromagneticcompatibility;EMC;Flicker;Influencequantities;Lowfrequencies;Lowvoltagemains;Powersupplysystem;Voltage;Voltagefluctuations
【摘要】:ThispartofIEC61000providesguidanceonprincipleswhichcanbeusedasthebasisfordeterminingtherequirementsfortheconnectionoffluctuatinginstallationstoMV,HVandEHVpublicpowersystems(LVinstallationsarecoveredinotherIECdocuments).Forthepurposesofthisreport,afluctuatinginstallationmeansaninstallation(whichmaybealoadoragenerator)thatproducesvoltageflickerand/orrapidvoltagechanges.Theprimaryobjectiveistoprovideguidancetosystemoperatorsorownersonengineeringpracticeswhichwillfacilitatetheprovisionofadequateservicequalityforallconnectedcustomers.Inaddressinginstallations,thisdocumentisnotintendedtoreplaceequipmentstandardsforemissionlimits.Thisreportaddressestheallocationofthecapacityofthesystemtoabsorbdisturbances.Itdoesnotaddresshowtomitigatedisturbances,nordoesitaddresshowthecapacityofthesystemcanbeincreased.Sincetheguidelinesoutlinedinthisreportarenecessarilybasedoncertainsimplifyingassumptions,thereisnoguaranteethatthisapproachwillalwaysprovidetheoptimumsolutionforallflickersituations.Therecommendedapproachshouldbeusedwithflexibilityandengineeringjudgmentasfarasengineeringisconcerned,whenapplyingthegivenassessmentproceduresinfullorinpart.Thesystemoperatororownerisresponsibleforspecifyingrequirementsfortheconnectionoffluctuatinginstallationstothesystem.Thefluctuatinginstallationistobeunderstoodasthecustomer’scompleteinstallation(i.e.includingfluctuatingandnonfluctuatingparts).Problemsrelatedtovoltagefluctuationsfallintotwobasiccategories:?Flickereffectfromlightsourcesasaresultofvoltagefluctuations;?Rapidvoltagechangesevenwithinthenormaloperationalvoltagetolerancesareconsideredasadisturbingphenomenon.Thereportgivesguidanceforthecoordinationoftheflickeremissionsbetweendifferentvoltagelevelsinordertomeetthecompatibilitylevelsatthepointofutilisation.Thisreportprimarilyfocusesoncontrollingorlimitingflicker,butaclauseisincludedtoaddressthelimitationofrapidvoltagechanges.NOTETheboundariesbetweenthevariousvoltagelevelsmaybedifferentfordifferentcountries(seeIEV601-01-28)[16].Thisreportusesthefollowingtermsforsystemvoltage:?lowvoltage(LV)referstoUn≤1kV;?mediumvoltage(MV)refersto1kV
【国际标准分类号】:33_100_01
【页数】:65P;A4
【正文语种】:英语