【英文标准名称】:StandardTestMethodforDielectricTestingofWireandCableFillingCompounds
【原文标准名称】:电线和电缆填充化合物介电试验的标准试验方法
【标准号】:ASTMD4872-1999(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D09.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cable;dielectrictesting;dissipationfactor;fillingcompounds;permittivity;volumeresistivity;wire;A-Cvolumeresistivity;Cablefilling/floodingcompounds;Communications;Dielectricproperties/testing;Dissipationfactor;Electricalperformance;
【摘要】:Dissipationfactor,permittivityanddcvolumeresistivityarepropertiesofcommunicationcablefillersandfillercomponentsthatarecontrolledinorderthatthecablersquo;electricalperformancefallswithinitsdesignlimits.Relativelysmallamountsofcontaminants,suchaspolarcompounds,waterorsalts,degradethecablersquo;electricalproperties.Limitsonthedielectricpropertiesofthecablefillingcompoundareusuallyspecifiedbythecablemanufacturer,byindustrystandardsorboth.Dissipationfactor,permittivityanddcvolumeresistivityarepropertiesofcommunicationcablefillersandfillercomponentsthatarecontrolledinorderthatthecable''selectricalperformancefallswithinitsdesignlimits.Relativelysmallamountsofcontaminants,suchaspolarcompounds,waterorsalts,degradethecable''selectricalproperties.Limitsonthedielectricpropertiesofthecablefillingcompoundareusuallyspecifiedbythecablemanufacturer,byindustrystandardsorboth.
【中国标准分类号】:K10
【国际标准分类号】:29_035_01
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Fire-fightingpumps-Fire-fightingcentrifugalpumpswithprimer-Part2:Verificationofgeneralandsafetyrequirements(includesAmendmentA1:2008);EnglishversionofDINEN1028-2:2008-06
【原文标准名称】:消防泵.带起动注油器的消防离心泵.第2部分:一般要求和安全要求的检定
【标准号】:EN1028-2-2008
【标准状态】:现行
【国别】:
【发布日期】:2008-06
【实施或试行日期】:2008-06-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:附件;通气;离心泵;分类;检验(质量保证);消防队;消防队用设备;防火离心泵;消防泵;防火安全;消防;消防设备;灭火泵;高压泵;检验;作标记;材料;测量;测量技术;机动泵;压力测量(流体);压力试验;泵;合格试验;规格试验;机械安全;规范(验收);测试
【英文主题词】:Accessories;Aeration;Centrifugalpumps;Classification;Conformitytesting;Examination(qualityassurance);Firebrigade;Firebrigadedevices;Firecentrifugalpump;Firepumps;Firesafety;Firefighting;Firefightingequipment;Fire-fightingpumps;High-pressurepumps;Inspection;Marking;Materials;Measurement;Measuringtechniques;Motorpumps;Pressuremeasurement(fluids);Pressuretests;Pumps;Qualificationtests;Ratingtests;Safetyofmachinery;Specification(approval);Testing
【摘要】:
【中国标准分类号】:C84
【国际标准分类号】:13_220_10;23_080
【页数】:37P.;A4
【正文语种】:英语