DIN 6700-4-2001 铁路车辆及车辆部件的焊接.第4部分:执行规则

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【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part5-8:Controlcircuitdevicesandswitchingelements-Three-positionenablingswitches
【原文标准名称】:低压开关设备和控制设备.第5-8部分:控制电路器件和切换元件.三位启动开关
【标准号】:IEC60947-5-8-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-10
【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】:接触元件;控制装置;控制设备;控制开关;定义;电气工程;低电压;低压电器;低压开关设备;作标记;机械性泄露;产品信息;特性;合格试验;常规检验;安全元件;机械安全;规范(验收);开关;开关设备;开关操纵元件;试验;试验条件
【英文主题词】:Acquisition;Activities;Ageing(materials);Alternatingfields;Alternatingvoltages;Ambienttemperature;Appliancecouplers;Behaviour;Cables;Capacitive;Characteristics;Classificationsystems;Clearances;Conditions;Connections;Constantfields;Constructionrequirements;Contactelement;Controldevices;Controlequipment;Controlswitches;Currents;Cylinders;Damping;Definitions;Degreesofprotection;Directvoltage;Discharge;Disconnection;Distances;Doorclosers;Earthconductors;Electricalengineering;Electromagnetic;Electromagnetism;EMC;Evaluations;Exits;Firerisks;Frequencies;Handlings;Heat;Heating;Height;Hysteresis;Idlemode;Impulsevoltages;Indications;Inductive;Information;Insulations;Interferingemissions;Leakagepaths;Linevoltagedrop;Loading;Longitudinalslots;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Maintenance;Marking;Materials;Measure;Measurement;Measuringtechniques;Mechanic;Mechanicallinkages;Metals;Mounting;Operation;Optical;Pipes;Plugs;Precision;Productinformation;Properties;Proximityswitches;Qualificationtests;Routinechecktests;Safetycomponents;Safetyofmachinery;Selection;Servicevoltage;Shape;Shocks;Shortcircuits;Signals;Specification(approval);Stress;Supply;Switches;Switchgear;Switchingelements;Switchingfrequency;Switchingintervals;Switching-in;Tensiletests;Testresults;Testing;Testingconditions;Threads;Transport;Types;Ultrasonics;Vibration;Voltagedrops
【摘要】:ThispartofIEC60947specifiesrequirementsforthree-positionenablingswitches.Theseswitchesareusedascomponentsofenablingdevicesdescribedin10.9ofIEC60204-1toprovidesignalsthat,a)whenactivated,allowmachineoperationtobeinitiatedbyaseparatestartcontrol,andb)whende-activated,i)initiateastopfunction,andii)preventinitiationofmachineoperation.NOTE1Theenablingcontrolfunctionisdescribedin9.2.6.3ofIEC60204-1.NOTE2Thisstandarddoesnotdealwithenablingdevices.Thisstandarddoesnotapplyto:?three-positionenablingswitchesfornon-electricalcontrolcircuits,forexamplehydraulic,pneumatic;?enablingswitcheswithoutthree-positionmechanism;?emergencystopdevices(seeIEC60947-5-5).
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:41P.;A4
【正文语种】:英语


【英文标准名称】:Spacesystems-Safetyrequirements-Part1:Systemsafety
【原文标准名称】:航天系统.安全要求.第1部分:系统安全
【标准号】:ISO14620-1-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:项目;航天运输;操作安全;航天安全;航天器;系统安全装置;设计;危险分析;危险;危害;安全管理;文献工作;安全;安全要求;定义;分析方法;规范(验收);安全工程;安全计划;飞行器;航空航天运输;分析;航空运输
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Analysis;Analyticalmethods;Definitions;Documentations;Hazards;Methodsofanalysis;Operationalsafety;Project;Risk;Riskanalysis;Safety;Safetyengineering;Safetyplans;Safetyrequirements;Securitymanagement;Spacesafety;Spacetransport;Spacecraft;Specification(approval);Systemsafetycontrivance
【摘要】:1GeneralThisEuropeanStandarddefinesthesafetyprogrammeandthetechnicalsafetyrequirementsthatareimplementedinordertocomplywiththesafetypolicyasdefinedinISO14300-2.Itisintendedtoprotectflightandgroundpersonnel,thelaunchvehicle,associatedpayloads,groundsupportequipment,thegeneralpublic,publicandprivateproperty,andtheenvironmentfromhazardsassociatedwithspacesystems.LaunchsiteoperationsaredescribedbyISO14620-2.Thesafetypolicyisappliedbyimplementingasystemsafetyprogramme,supportedbyriskassessment,whichcanbesummarizedasfollows:a)hazardouscharacteristics(systemandenvironmentalhazards)andfunctionswithpotentiallyhazardousfailureeffectsareidentifiedandprogressivelyevaluatedbyiterativelyperformingsystematicsafetyanalyses;b)thepotentialhazardousconsequencesassociatedwiththesystemcharacteristicsandfunctionalfailuresaresubjectedtoahazardreductionsequencewhereby:1)hazardsareeliminatedfromthesystemdesignandoperations;2)hazardsareminimized;3)hazardcontrolsareappliedandverified.c)therisksthatremainaftertheapplicationofahazardeliminationandreductionprocessareprogressivelyassessedandsubjectedtoriskassessment,inorderto:1)showcompliancewithsafetytargets;2)supportdesigntrades;3)identifyandrankriskcontributors;4)supportapportionmentofprojectresourcesforriskreduction;5)assessriskreductionprogress;6)supportthesafetyandprojectdecision-makingprocess(e.g.waiverapproval,residualriskacceptance).d)theadequacyofthehazardandriskcontrolmeasuresappliedareformallyverifiedinordertosupportsafetyvalidationandriskacceptance;e)safetycomplianceisassessedbytheprojectandsafetyapprovalobtainedfromtherelevantauthorities.2FieldofapplicationThisEuropeanStandardisapplicabletoallspaceprojectswhereduringanyprojectphasethereexiststhepotentialforhazardstopersonnelorthegeneralpublic,spaceflightsystems,groundsupportequipment,facilities,publicorprivateproperty,ortheenvironment.Theimpositionoftheserequirementsontheprojectsuppliers'activitiesrequiresthatthecustomer'sprojectproductassuranceandsafetyorganizationalsorespondtotheserequirementsinamannerwhichiscommensuratewiththeproject'ssafetycriticality.3TailoringWhenviewedfromtheperspectiveofaspecificprogrammeorprojectcontext,therequirementsdefinedinthisEuropeanStandardshouldbetailoredtomatchthegenuinerequirementsofaparticularprofileandcircumstancesofaprogrammeorproject.NOTETailoringistheprocessbywhichindividualrequirementsofspecifications,standardsandrelateddocumentsareevaluated,andmadeapplicabletoaspecificprogrammeorprojectbyselection,andinsomeexceptionalcases,modificationofexistingoradditionofnewrequirements.
【中国标准分类号】:V09
【国际标准分类号】:49_140
【页数】:37P;A4
【正文语种】:英语