BS EN 50125-2-2003 铁路设施.设备的环境条件.固定的电力设备

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【英文标准名称】:Railwayapplications-Environmentalconditionsforequipment-Fixedelectricalinstallations
【原文标准名称】:铁路设施.设备的环境条件.固定的电力设备
【标准号】:BSEN50125-2-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-03-19
【实施或试行日期】:2003-03-19
【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】:规范(验收);电气器具;环境条件;湿度;电力设备;电气设备;设备;电驱动装置;直流电流;铁路;额定值;抗风化能力;铁路车辆;电力牵引;电涌放电器;风;电子装置;环境影响;气候条件;铁路工程;供应系统;定义;交流电流;铁路设施;低压开关设备;空气温度;铁道车辆;电气工程;阻止环境(退化);电源电压;运载工具
【英文主题词】:Airtemperatures;Alternatingcurrent;Definitions;Directcurrent;Electricappliances;Electrictraction;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Electronically-operateddevices;Environmentalconditions;Environmentaleffects;Environmentalresistance;Equipment;Humidity;Low-voltageswitchgear;Railwayapplications;Railwayengineering;Railwayvehicles;Railways;Ratings;Rollingstocks;Specification(approval);Supplysystems;Supplyvoltages;Surgearresters;Tunnels;Vehicles;Weathercondition;Weatherresistance;Weatherresistant;Winds
【摘要】:
【中国标准分类号】:S33
【国际标准分类号】:29_280
【页数】:18P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforPermeabilityofPowderMetallurgy(PM)BearingsUsingNitrogenGas
【原文标准名称】:使用氮气测定(PM)轴承的磁导率的标准试验方法
【标准号】:ASTMB966-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:B09.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:oilfilm;permeability;PMbearing;rotameter;self-lubricating
【摘要】:Inservice,thereisaspacebetweenashaftandaself-lubricatingPMbearingthatcontainsanoilfilmwhenthebearingisoperatingproperly.Intheeventtheoilfilmisdisruptedorfailstoformthebearingwillexhibitincreasedwearandpossiblyfail.ThereforetheabilityforoiltoflowthroughtheporosityofaPMbearingiscriticaltotheperformanceofthebearing.Theporosityofthebearingmustbeopentothesurfaceandinterconnectedwithinthebearing.Thisallowstheoilinaself-lubricatingPMbearingtoflowduringoperationtothespacebetweenthebearingandtheshafttoformanoilfilmandprotecttheshaftfromwear.Theabilityofagastoflowthroughthebearingreflectstheopennessandinterconnectedpropertiesoftheporosityinthebearing.Datafromthistestcanbeusedasaninternalqualitytoolandcanbereportedtobuyersofbearings.Anumberofotherfactorsalsoaffecttheperformanceofthebearingandthemovementofoil;factorssuchastheoilviscosity,operatingtemperature,load,shaftspeed,surfacearea,surfacefinishesandothers.Thistestprovidesinformationononlyonepropertyandcannotbethesoleconsiderationinthedesignandtestingofabearingapplication.1.1ThistestmethodcoversthedeterminationofthepermeabilityofaPMbearingwhensubjectedtopressurizednitrogenundercontrolledconditions.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandardwiththeexceptionofflowrateforwhichthecm3/minunitistheindustrystandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J11
【国际标准分类号】:21_100_01
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Eurocode-Basisofstructuraldesign.
【原文标准名称】:欧洲法规:结构设计基础
【标准号】:NFP06-100-1-2003
【标准状态】:现行
【国别】:法国
【发布日期】:2003-03-01
【实施或试行日期】:2003-03-20
【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】:数学计算;建筑法规;土木工程;安全要求;定义;可靠度;尺寸选定;结构工程图;施工材料;结构;欧洲法规;稳定性;验证;建筑物;规范(验收);效应;建筑工程;设计;计划;基础
【英文主题词】:Basis;Buildingcode;Buildings;Civilengineering;Construction;Constructionengineering;Constructionmaterials;Definition;Definitions;Design;Dimensioning;Effects;EUROCODE;Mathematicalcalculations;Planning;Reliability;Safetyrequirements;Specification(approval);Stability;Structuralengineeringdrawings;Structures;Verification
【摘要】:
【中国标准分类号】:P20
【国际标准分类号】:91_010_30
【页数】:76P.;A4
【正文语种】:其他