【英文标准名称】:Electricalsafetyinlowvoltagedistributionsystemsupto1000Va.c.and1500Vd.c.Equipmentfortesting,measuringormonitoringofprotectivemeasures.Performancemeasuringandmonitoringdevices(PMD)
【原文标准名称】:交流1000V和直流1500V以下低压配电系统的电气安全.保护措施的测试、测量或监测用设备.性能测量和监测装置(PMD)
【标准号】:BSEN61557-12-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-06-30
【实施或试行日期】:2008-06-30
【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】:控制仪器;直流装置;电能分配;电气工程;电气装置;电性能;电性质和电现象;电气安全;谐波电流;谐波;额定电压装置;干扰抑制;低压电源;低压设备;测量设备;测量不确定度;监视装置;过电压保护装置;参数;性能要求;性能测试;保护措施;合格试验;规范(验收);测试;电压
【英文主题词】:Controlinstruments;Definitions;Directcurrentinstallations;Electricenergydistribution;Electricpowerdistribution;Electricalengineering;Electricalinstallations;Electricalmeasurement;Electricalmeasuringinstruments;Electricalproperties;Electricalpropertiesandphenomena;Electricalprotectionequipment;Electricalsafety;Harmoniccurrent;Harmonics;Installationsforratedvoltages;Interferencerejections;Lowvoltage;Lowvoltagemains;Low-voltageequipment;Low-voltageinstallations;Measuringequipment;Measuringincertainity;Measuringinstruments;Monitoringdevice;Overvoltageprotection;Parameters;Performanceinservice;Performancerequirements;Performancetesting;Probes;Protectionagainstelectricshocks;Protectivemeasures;Qualificationtests;Safetydevices;Specification(approval);Testing;Voltage
【摘要】:ThispartofIEC61557specifiesrequirementsforcombinedperformancemeasuringandmonitoringdevicesthatmeasureandmonitortheelectricalparameterswithinelectricaldistributionsystems.Theserequirementsalsodefinetheperformance,insingleandthreephasea.c.ord.c.systemshavingratedvoltagesupto1000Va.c.orupto1500Vd.c.Thesedevicesarefixedinstalledorportable.Theyareintendedtobeusedindoorsand/oroutdoors.Thisstandardisnotapplicablefor:?electricitymeteringequipmentthatcomplieswithIEC62053-21,IEC62053-22andIEC62053-23.Nevertheless,uncertaintiesdefinedinthisstandardforactiveandreactiveenergymeasurementarederivedfromthosedefinedintheIEC62053standardsseries.?simpleremoterelaysorsimplemonitoringrelays.ThisstandardisintendedtobeusedinconjunctionwithIEC61557-1(unlessotherwisespecified),whichspecifiesthegeneralrequirementsformeasuringandmonitoringequipment,asrequiredinIEC60364-6.ThestandarddoesnotincludethemeasurementandmonitoringofelectricalparametersdefinedinParts2to9ofIEC61557orinIEC62020.Combinedperformancemeasuringandmonitoringdevices(PMD),asdefinedinthisstandard,giveadditionalsafetyinformation,whichaidstheverificationoftheinstallationandenhancestheperformanceofthedistributionsystems.Forinstance,thosedeviceshelptocheckifthelevelofharmonicsisstillcompliantwiththewiringsystemsasrequiredinIEC60364-5-52.Thecombinedperformancemeasuringandmonitoringdevices(PMD)forelectricalparametersdescribedinthisstandardareusedforgeneralindustrialandcommercialapplications.APMD-AisaspecificPMDcomplyingwithrequirementsofIEC61000-4-30classA,whichmaybeusedin"powerqualityassessment"applications.NOTE1Generallysuchtypesofdevicesareusedinthefollowingapplicationsorforthefollowinggeneralneeds:–energymanagementinsidetheinstallation;–monitoringand/ormeasurementofelectricalparametersthatmayberequiredorusual;–measurementand/ormonitoringofthequalityofenergy.NOTE2Ameasuringandmonitoringdeviceofelectricalparametersusuallyconsistsofseveralfunctionalmodules.Allorsomeofthefunctionalmodulesarecombinedinonedevice.Examplesoffunctionalmodulesarementionedbelow:–measurementandindicationofseveralelectricalparameterssimultaneously;–energymeasurementand/ormonitoring,andalsosometimescompliancewithaspectsofbuildingregulations;–alarmsfunctions;–powerquality(harmonics,over/undervoltages,voltagedipsandswells,etc).
【中国标准分类号】:K31
【国际标准分类号】:17_220_20;29_080_01;29_240_01
【页数】:82P.;A4
【正文语种】:英语


【英文标准名称】:Testingofliquidfuels-Determinationofsodiumcontent,directdeterminationbyflamephotometry
【原文标准名称】:液体燃料试验.钠含量测定.用火焰光度法直接测定
【标准号】:DIN51797-2-1971
【标准状态】:作废
【国别】:德国
【发布日期】:1971-12
【实施或试行日期】:
【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】:试验;燃料;钠;火焰光度测定法;含量测定;燃料油
【英文主题词】:fueloil;determinationofcontent;testing;flamephotometry;sodium;fuels
【摘要】:
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:3P;A4
【正文语种】:德语