ASME B18.2.6M-2012 用于结构的公制紧固件
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【英文标准名称】:MetricFastenersforUseinStructuralApplications
【原文标准名称】:用于结构的公制紧固件
【标准号】:ASMEB18.2.6M-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012-01-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME/B18
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Applications;Bolts;Construction;Dimensions;Fasteners;Hexagonheadscrews;Imperialsystem;Inch;Inchscrewthreads;Lockingandlocatingdevices;Sphericalheadscrews;Structure;Tensioningbolts;Washers
【摘要】:ThisStandardcoversthecompletegeneralanddimensionaldataforproductsinthemetricseriesrecognizedasAmericanNationalStandardforsizesM12throughM36.Thesefourmetricstructuralproductsinclude(a)metricheavyhexstructuralbolts:ASTMA325MandASTMA490M(b)metricheavyhexnuts:ASTMA563M(c)metrichardenedsteelwashers;circular,circularclipped,andbeveled:ASTMF436M(d)metriccompressiblewasher-typedirecttensionindicators:ASTMF959M
【中国标准分类号】:J13
【国际标准分类号】:21_060_99
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Specificationforlow-voltageswitchgearandcontrolgear-Circuit-breakers
【原文标准名称】:低压开关设备和控制设备规范.断路器
【标准号】:BSEN60947-2-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-06-30
【实施或试行日期】:2003-06-30
【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】:故障电流;交流电流;检验;定义;试验;开关设备;低压开关设备;分类;电气器具;电路;作标记;故障电流断路器;线路开关;开关;断路器;直流电压;电气安全;安全装置;EMC电磁兼容性;电磁兼容性;规范(验收);保护设备;连接;低压电器;残余电流起动的断路器;电气工程;电压;交流电压;电气保护设备;干扰抑制;低电压
【英文主题词】:Alternatingcurrent;Alternatingvoltages;Circuit-breakers;Circuits;Classification;Connections;Definition;Definitions;Directvoltage;Electricappliances;Electricalengineering;Electricalprotectionequipment;Electricalsafety;Electromagneticcompatibility;EMC;Faultcurrentbreakers;Faultcurrents;Fuses;Inspection;Interferencerejections;Lineswitches;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Marking;Protectionagainstelectricshocks;Protectiondevices;Residualcurrentoperatedcircuit-breakers;Safetydevices;Specification(approval);Switches;Switchgear;Testing;Voltage
【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-breakersnotfulfillingtherequirementsforovercurrentprotectionarecontainedinannexL.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】:K31
【国际标准分类号】:29_130_20
【页数】:220P.;A4
【正文语种】:英语
MIL-STD-1792, MILITARY STANDARD: FASTENING SYSTEMS, MECHANICAL, AIR VEHICLE (23 DEC 1985)., This document presents the criteria and qualities applicable to air vehiclemechanical fasteners and fastening systems.
