【英文标准名称】:Bushingsfortransformerandreactorcableboxesnotexceeding36kV;GermanversionEN50336:2002
【原文标准名称】:不超过36kV的变压器和电抗器电缆箱用套管;德文版本EN50336:2002
【标准号】:DINEN50336-2002
【标准状态】:现行
【国别】:德国
【发布日期】:2002-12
【实施或试行日期】:2002-12-01
【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】:套管;电气工程;电缆密封装置;阻气门;穿墙引入线绝缘导管;布置;定义;电缆连接件;电气保护设备;变压器;火花间隙;分线盒;规范(验收);扼流圈;绝缘子;绝缘子;电缆;绝缘;试验
【英文主题词】:
【摘要】:Thedocumentisapplicabletoinsulatedbushingsforuseinairinsulated,shroudinsulatedandfullyinsulatedcableboxesforliquidfilledtransformersandreactorsforratedvoltagesupto36kV,andratedcurrentsupto4000Aatfrequenciesfrom15Hzto60Hz.
【中国标准分类号】:K41
【国际标准分类号】:29_080_20
【页数】:17P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDeterminingTheRelativeDensity(SpecificGravity)AndAbsorptionOfFineAggregatesUsingInfrared
【原文标准名称】:相对密度(比重)和用红外线对细集料吸收测定的标准试验方法
【标准号】:ASTMD7172-2006e1
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:D04.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorption;aggregate;apparentdensity;apparentrelativedensity;infrared;relativedensity;specificgravity
【摘要】:Bulkrelativedensity(specificgravity)isthecharacteristicgenerallyusedforcalculationofthevolumeoccupiedbytheaggregateinvariousmixturescontainingaggregateincludingPortlandcementconcrete,bituminousconcrete,andothermixturesthatareproportionedoranalyzedonanabsolutevolumebasis.Bulkrelativedensity(specificgravity)isusedinthecomputationofvoidsinaggregateinC1252andC29/C29M.Bulkrelativedensity(specificgravity)determinedonthesaturatedsurfacedry(SSD)basisisusediftheaggregateiswet,thatis,ifitsabsorptionhasbeensatisfied.Conversely,thebulkrelativedensity(specificgravity)determinedontheoven-drybasisisusedforcomputationswhentheaggregateisdryorassumedtobedry.Apparentrelativedensity(specificgravity)pertainstotherelativedensityofthesolidmaterialmakinguptheconstituentparticlesnotincludingtheporespacewithinthenbsp;nbsp;nbsp;particlesthatisaccessibletowater.Thisvalueisnotwidelyusedinconstructionnbsp;nbsp;nbsp;aggregatetechnology.Waterabsorptionvaluesareusedtocalculatethechangeinthemassofannbsp;nbsp;nbsp;aggregateduetowaterabsorbedintheporespaceswithintheconstituentnbsp;nbsp;nbsp;particles,comparedtothedrycondition,whenitisdeemedthattheaggregatenbsp;nbsp;nbsp;hasbeenincontactwithwaterlongenoughtosatisfymostoftheabsorptionnbsp;nbsp;nbsp;potential.Thelaboratorystandardforabsorptionisthatobtainedafternbsp;nbsp;nbsp;submergingdryaggregateforapproximately24hoursinwater.Aggregatesnbsp;nbsp;nbsp;minedfrombelowthewatertablemayhaveahigherabsorptionwhenused,ifnotallowedtodry.Conversely,someaggregateswhenusedmaycontainannbsp;nbsp;nbsp;amountofabsorbedmoisturelessthanthe24hourssoakedcondition:Foranaggregatethathasbeenincontactwithwaterandthathadfreemoistureonthenbsp;nbsp;nbsp;particlesurface,thepercentageoffreemoisturecanbedeterminedbydeductingnbsp;nbsp;nbsp;theabsorptionfromthetotalmoisturecontentdeterminedaccordingtoC566bydrying.1.1Thistestmethodcoversthedeterminationoftherelativedensity(specificgravity)andabsorptionoffineaggregates.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:英语