BS 7842-1996 具有预作用的螺纹密封特性的安装在螺纹上的螺栓、螺钉和螺柱
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来源:标准资料网
【英文标准名称】:Bolts,screwsandstudswithpre-appliedthreadsealingfeatureincorporatedintothethread
【原文标准名称】:具有预作用的螺纹密封特性的安装在螺纹上的螺栓、螺钉和螺柱
【标准号】:BS7842-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-04-15
【实施或试行日期】:1996-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:密封材料;螺柱;材料的机械性能;尺寸;扭矩;螺纹紧固件;内螺纹紧固件;外螺纹紧固件;性能;螺钉;螺栓;润滑;机械试验;温度;螺母;紧固件
【英文主题词】:
【摘要】:ThisBritishStandardspecifiesthecoatings,dimensions,materials,lubricationandperformancerequirementsforbolts,screwsandstudswithapre-appliedsealingfeatureincorporatedintothethread,whentestedatatemperaturebetween15℃and30℃.Itappliestobolts,screwsandstuds:a)withISOmetriccoarsepitchM4toM24threadsconformingtoBS3643:Part2:1981;b)withspecificstrengthrequirementsconformingtoeitherBS6104:Part3:1981,BS6105:1981orBSEN20898-1:1992,asappropriate;c)withthreadsoftoleranceclass6gor4hconformingtoBS3643:Part2:1981;d)forapplicationintoamatingcomponentwithathreadoftoleranceclass6HconformingtoBS3643:Part2:1981;e)forusewithinthetemperaturerange-50℃to+150℃.Thefollowingarenotcoveredinthescopeofthisstandard:1)performanceattemperaturesoutsidetheoperatingrange;2)performanceofbolts,screwsandstudsforwhichalubricatedorprotectivecoatingisnotpermissible;3)performanceoftaperthreadedcomponents.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:10P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforEnclosedCarbon-ArcExposureTestsofPaintandRelatedCoatings
【原文标准名称】:使用封闭碳弧光灯曝露仪对涂料及有关涂层进行试验的标准实施规程
【标准号】:ASTMD5031-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;覆层;涂料;环境试验
【英文主题词】:paints;testing;coatings;environmentaltesting
【摘要】:
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part2:Circuit-breakers
【原文标准名称】:低压开关和控制设备.第2部分:断路器
【标准号】:IEC60947-2-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC17B
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电流;交流电压;断路器;电路;分类;连接;定义;直流电压;电气器具;电气工程;电气保护设备;电气安全;电磁兼容性;故障电流断路器;故障电流;熔断器;检验;干扰抑制;线路开关;低电压;低压电器;低压开关设备;作标记;防电击;保护设备;剩余电流工作电路;安全装置;规范(验收);开关;开关设备;试验;电压
【英文主题词】:Alternatingcurrent;Alternatingvoltages;Ambienttemperature;Auxiliarycircuits;Breakingcapacity;Calibration;Circuit-breakers;Circuits;Clearances;Connections;Constructionrequirements;Contact;Damping;Definitions;Design;Dimensioning;Directcurrent;Directvoltage;Dissipatedenergy;Electricappliances;Electricalengineering;Electricalprotectionequipment;Electricalsafety;Electromagneticcompatibility;EMC;Faultcurrentbreakers;Faultcurrents;Flash-overs;Frequencies;Fuses;Handlings;Heat;Heating;Inspection;Insulatingstrength;Insulations;Interferencerejections;Interruptions;Leakagepaths;Lineswitches;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Maincircuit;Maintenance;Operation;Overload;Overvoltage;Performanceinservice;Productinformation;Protectionagainstelectricshocks;Protectiondevices;Ratings;Residualcurrentoperatedcircuit-breakers;Safety;Safetydevices;Shortcircuits;Strengthofmaterials;Supplysystems;Switchoff;Switchon;Switches;Switchgear;Temperature;Temperaturerises;Temperatureshock;Testcycle;Testing;Transport;Trippingcurrents;Trippingmechanism;Vibration
【摘要】:Thisstandardappliestocircuit-breakers,themaincontactsofwhichareintendedtobeconnectedtocircuits,theratedvoltageofwhichdoesnotexceed1000Va.c.or1500Vd.c.;italsocontainsadditionalrequirementsforintegrallyfusedcircuit-breakers.Itapplieswhatevertheratedcurrents,themethodofconstructionortheproposedapplicationsofthecircuit-breakersmaybe.Therequirementsforcircuit-breakerswhicharealsointendedtoprovideearth-leakageprotectionarecontainedinAnnexB.Theadditionalrequirementsforcircuit-breakerswithelectronicover-currentprotectionarecontainedinAnnexF.Theadditionalrequirementsforcircuit-breakersforITsystemsarecontainedinAnnexH.Therequirementsandtestmethodsforelectromagneticcompatibilityofcircuit-breakersarecontainedinAnnexJ.Therequirementsforcircuit-breakersnotfulfillingtherequirementsforover-currentprotectionarecontainedinAnnexL.Therequirementsformodularresidualcurrentdevices(withoutintegralcurrentbreakingdevice)arecontainedinAnnexM.Therequirementsandtestmethodsforelectromagneticcompatibilityofcircuit-breakerauxiliariesarecontainedinAnnexN.Supplementaryrequirementsforcircuit-breakersusedasdirect-on-linestartersaregiveninIEC60947-4-1,applicabletolow-voltagecontactorsandstarters.Therequirementsforcircuit-breakersfortheprotectionofwiringinstallationsinbuildingsandsimilarapplications,anddesignedforusebyuninstructedpersons,arecontainedinIEC60898.Therequirementsforcircuit-breakersforequipment(forexampleelectricalappliances)arecontainedinIEC60934.Forcertainspecificapplications(forexampletraction,rollingmills,marineservice)particularoradditionalrequirementsmaybenecessary.NOTECircuit-breakerswhicharedealtwithinthisstandardmaybeprovidedwithdevicesforautomaticopeningunderpredeterminedconditionsotherthanthoseofover-currentandundervoltageas,forexample,reversalofpowerorcurrent.Thisstandarddoesnotdealwiththeverificationofoperationundersuchpre-determinedconditions.Theobjectofthisstandardistostate:a)thecharacteristicsofcircuit-breakers;b)theconditionswithwhichcircuit-breakersshallcomplywithreferenceto:1)operationandbehaviourinnormalservice;2)operationandbehaviourincaseofoverloadandoperationandbehaviourincaseofshort-circuit,includingco-ordinationinservice(discriminationandback-upprotection);3)dielectricproperties;c)testsintendedforconfirmingthattheseconditionshavebeenmetandthemethodstobeadoptedforthesetests;d)informationtobemarkedonorgivenwiththeapparatus.
【中国标准分类号】:K32
【国际标准分类号】:29_130_20
【页数】:435P.;A4
【正文语种】:英语
