【英文标准名称】:Electricalinstallationguide-Selectionanderectionofelectricalequipment-Wiringsystems-Limitationoftemperatureriseofconnectinginterfaces;GermanversionCLC/TR50479:2007
【原文标准名称】:电气安装指南.电气设备的选择和安装.布线系统.连接接口的升温限值
【标准号】:DINVDE0100-520Bb.1-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-10
【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】:建筑物服务设施;建筑物;电缆系统;接触轨;载流量;电缆;导电体;电工导管;电连接;电端子;电气布线系统;电气工程;电气设备;电气装置;电驱动装置;安装;指导手册;绝缘件;接口;电气连接件用接口;敷设;极限;线路电压降;管路;电力装置;选择;规范(验收);系统;温度;温升;类型
【英文主题词】:Buildingservices;Buildings;Cablesystems;Cables;Conductorrails;Currentcarryingcapacity;Electriccables;Electricconductors;Electricconduits;Electricconnection;Electricterminals;Electricwiringsystems;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Erection;Guidebooks;Insulations;Interfaces;Interfacesofelectricalconnections;Laying;Limitations;Linevoltagedrop;Piping;Powerinstallations;Selection;Specification(approval);Systems;Temperature;Temperaturerise;Types
【摘要】:
【中国标准分类号】:P91
【国际标准分类号】:91_140_50
【页数】:9P.;A4
【正文语种】:德语


【英文标准名称】:StandardPracticeforEvaluationofRocktobeUsedforErosionControl
【原文标准名称】:侵蚀控制用岩石评定的标准实施规范
【标准号】:ASTMD4992-2007
【标准状态】:现行
【国别】:
【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】:D18.17
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:侵蚀;评定;岩石
【英文主题词】:armorstone;breakwaterstone:erosioncontrol;laboratorytesting;petrographicanalysis;riprap;rock;rockdurability;rockmassproperties;rockmaterialproperties
【摘要】:Thefieldexaminationandpetrographicexaminationinthispracticealongwithappropriatelaboratorytestingmaybeusedtodeterminethesuitabilityofrockforerosioncontrol.Itshouldidentifyanddelineateareasorzonesoftherock,beds,andfaciesofunsuitableormarginalcompositionandpropertiesduetoweathering,alteration,structuralweaknesses,porosity,andotherpotentiallydeleteriouscharacteristics.Boththerockmasspropertiesandtherockmaterialpropertiesmustbeevaluated.4.2.1Therockmasspropertiesarethelithologicpropertiesoftheinsiturockthatmustbeevaluatedonamacroscopicscaleinthefield.Thesewouldincludefeaturessuchasfractures,joints,faults,bedding,schistosity,andlineations,aswellasthelateralandverticalextentoftherockunit.4.2.2Therockmaterialpropertiesarethoselithologicpropertiesthatmaybeevaluatedusingsmallspecimensandthuscanbesubjecttomeaningfullaboratorytesting.Thesepropertieswouldincludemineralcomposition,grainsize,rockhardness,degreeofweathering,porosity,unitweight,andmanyothers.Rockproposedforuseinerosioncontrolapplicationswillnormallybeclassifiedaseitherfilterbeddingstone,riprapstone,armorstone,orbreakwaterstone.However,theseproceduresmaybealsoextendedtorocksusedingroinandgabionstructures.1.1Thispracticecoverstheevaluationofrocktobeusedforerosioncontrol.Thecomplexityandextentofthisevaluationwillbegovernedbythesizeanddesignrequirementsoftheindividualproject,thequantityandqualityofrockrequired,andthepotentialriskforpropertydamageorlossofhumanlife.1.2Itisnotintendedthatalloftheevaluationslistedinthispracticebeaddressedforeveryproject.Forsomesmall,lesscriticaljobs,avisualinspectionoftherockmaybeallthatisnecessary.Severaloftheevaluationslistedmaybenecessaryonlarge,complex,high-hazardprojects.Theintensityandnumberofevaluationsmadeonanyoneprojectmustbedeterminedbythedesigner.1.3Examinationoftherockatthesource,evaluationofsimilarrockexposedtotheenvironmentatanyfieldinstallations,aswellaslaboratorytestsmaybenecessarytodeterminethepropertiesoftherockasrelatedtoitspredictedperformanceatthesiteofintendeduse(1,2,3,4,5,6).1.4Theexaminationoftherockatitssourceisessentialtoitsevaluationforerosioncontrolandaidsintheplanningofthesubsequentlaboratoryexaminations.Verylargepiecesofrockuptoseveraltonsweightareusedinthecontroloferosion;thusgreatcaremustbetakenwiththefielddescriptionsandinthesamplingprogramtoassurethatzonesofimpuritiesorweaknessesthatmightnotoccurinordinarysizespecimensarerecordedandevaluatedfortheirdeleteriouspotentialundertheconditionsofintendeduse.Itisnecessarythattheintendedmethodofrockremovalbestudiedtoascertainwhetherthesamplestakenwillcorrespondtotheblasting,handling,andweatheringhistoryoftherockthatwillfinallybeused().1.5Thespecificproceduresemployedinthelaboratoryexaminationsdependonthekindofrock,itscharacteristics,mineralcomponents,macroandmicrostructure,andperhapsmostimportantly,theintendeduse,sizeofthepieces,andtheexposureconditionsatthesiteofuse(1,2,3,4).1.6Itisassumedthatthispracticewillbeusedbypersonnelwhoarequalifiedbyeducationandexperiencetoplanthenecessaryevaluationsandtoconductthemsothatthenecessaryparametersofthesubjectrockwillbedefined.Therefore,thispracticedoesnotattempttodetailthelaboratorytechniquesrequired,butrathertomentionthemandonlydetailthosepropertiesthatmustbeof......
【中国标准分类号】:P13
【国际标准分类号】:91_100_15
【页数】:7P.;A4
【正文语种】: