【英文标准名称】:Coaxialcables-Part2-5:sectionalspecificationforcablesusedincableddistributionnetworks-Outdoordropcablesforsystemsoperatingat5MHz-3000MHz.
【原文标准名称】:同轴电缆.第2-5部分:电缆配电网络用电缆分规范.在5MHz-3000MHz运行的系统用室外引入电缆
【标准号】:NFC90-130-2-5-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-09-01
【实施或试行日期】:2005-09-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆分布系统;电缆网络;电缆;同轴;同轴电缆;插接件连接;定义;设计;分配器;电气工程;电性质和电现象;环境条件;识别;设备电缆;作标记;材料;测量技术;机械性能;室外电缆;特性;质量评定程序;质量保证;分规范;信号传输;规范(验收);火焰表面传播;试验;主干电缆;地下配电
【英文主题词】:Cabledistributionsystems;Cablednetworks;Cables;Coaxial;Coaxialcables;Connectoredjoints;Definition;Definitions;Design;Distributors;Electricalengineering;Electricalpropertiesandphenomena;Environmentalcondition;Identification;Installationcables;Marking;Materials;Measuringtechniques;Mechanicalproperties;Outsidecables;Properties;Qualityassessmentprocedures;Qualityassurance;Sectionalspecification;Signaltransmission;Specification(approval);Surfacespreadofflame;Testing;Trunkcables;Undergroundelectricpowerdistribution
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_120_10
【页数】:15P.;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforAcceleratedCompressiveCreepofGeosyntheticMaterialsBasedonTime-TemperatureSuperpositionUsingtheSteppedIsothermalMethod
【原文标准名称】:使用阶段等温法对基于时间-温度叠加的土工合成材料的加速压缩蠕变的标准试验方法
【标准号】:ASTMD7361-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:D35.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:creep;geosynthetics;holdtest;ramp;steppedisothermalmethod;time-temperaturesuperposition
【摘要】:UseoftheSIMdecreasesthetimerequiredforcreeptooccurandtheobtainingoftheassociateddata.ThestatementssetforthinSection1.5areveryimportantinthecontextofsignificanceanduse,aswellasscopeofthestandard.Creeptestdataareusedtocalculatethecreepmodulusofmaterialsasafunctionoftime.Thesedataarethenusedtopredictthelong-termcreepdeformationexpectedofgeosyntheticsusedindrainageapplications.Note18212;Currently,SIMtestinghasfocusedmainlygeonetsmadefromhighdensitypolyethylene.Additionaltestingonothermaterialsisongoing.R+Htestingisdonetoestablishtherangeofcreepstrainsexperiencedinthebriefperiodofveryrapidresponsefollowingthepeakoftheloadramp.1.1ThistestmethodcoversacceleratedtestingforcompressivecreeppropertiesusingtheSteppedIsothermalMethod(SIM).1.2ThetestmethodisfocusedongeosyntheticdrainagematerialssuchasHDPEgeonetspecimens.1.3nbsp;nbsp;nbsp;TheSIMtestsarelaterallyunconfinedtestsbasedontime-temperaturesuperpositionprocedures.1.4RampandHold(R+H)testsmaybecompletedinconjunctionwithSIMtests.TheyaredesignedtoprovideadditionalestimatesoftheinitialrapidcompressivecreepstrainlevelsappropriatefortheSIMresults.1.5Thismethodcanbeusedtoestablishthesustainedloadcompressivecreepcharacteristicsofageosyntheticthatdemonstratesarelationshipbetweentime-dependentbehaviorandtemperature.Resultsofthismethodaretobeusedtoaugmentresultsofcompressivecreeptestsperformedat20x00B1;1x00B0;Candmaynotbeusedasthesolebasisfordeterminationoflongtermcompressivecreepbehaviorofgeosyntheticmaterial.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:8P.;A4
【正文语种】:英语