NF Z84-392-10-17-2002 地面中继无线电系统(TETRA).声频加数据(V+D).第10部分:一级辅助服业务.子部分17:包括呼叫(IC)

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【英文标准名称】:Terrestrialtrunkedradio(TETRA)-Voiceplusdata(V+D)-Part10:supplementaryservicesstage1-Sub-part17:includecall(IC).
【原文标准名称】:地面中继无线电系统(TETRA).声频加数据(V+D).第10部分:一级辅助服业务.子部分17:包括呼叫(IC)
【标准号】:NFZ84-392-10-17-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-12-01
【实施或试行日期】:2002-12-20
【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】:
【英文主题词】:Calls;Communicationtechnology;Datatransfer;ETSI;Informationprocessing;Radio;Radioequipment;Radionetworks;Radiosystems;Speechtransmission;Supplementaryservices;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Terrestrial;TETRA;Transeuropeantrunkedradio;Wirelesscommunicationservices
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_030;33_070_10
【页数】:19P.;A4
【正文语种】:其他


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【英文标准名称】:Electricalapparatusforuseinthepresenceofcombustibledust-Classificationofareaswherecombustibledustsareormaybepresent
【原文标准名称】:有可燃性粉尘场合用电气设备.可燃性粉尘所在区域的分类
【标准号】:BSEN61241-10-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-10-26
【实施或试行日期】:2004-10-26
【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】:
【英文主题词】:Areas;Casetightness;Classification;Classificationsystems;Combustible;Definitions;Degreesofprotection;Deposit;Dust;Dustexplosions;Dusty;Electricappliances;Electricenclosures;Electricalengineering;Electricalequipment;Electricalresistance;Electricalsafety;Electrically-operateddevices;Enclosures;Environmentalcondition;Equipment;Erection;Explosionhazard;Explosionlimits;Explosionprotection;Explosions;Explosiveatmospheres;Firesafety;Flammableatmospheres;Flammablematerials;Ignitionprotection;Measuringinstruments;Potentiallyexplosivematerials;Procedures;Safety;Safetymeasures;Selection;Specification(approval);Structuring;Testing
【摘要】:ThispartofIEC61241isconcernedwiththeclassificationofareaswhereexplosivedust/airmixturesandcombustibledustlayersarepresent,inordertopermittheproperselectionofequipmentforuseinsuchareas.Inthisstandard,explosivedustatmospheresandcombustibledustlayersaretreatedseparately.InClause4,areaclassificationforexplosivedustscloudsisdescribed,withdustlayersactingasoneofthepossiblesourcesofrelease.InClause7,thehazardofdustlayerignitionisdescribed.Thisstandardassumeseffectivehousekeepingbasedonasystemofcleaningfortheplant.Theprinciplesofthestandardcanalsobefollowedwhencombustiblefibresorflyingsmaycauseahazard.Thisstandardisintendedtobeappliedwheretherecanbeariskduetothepresenceofexplosivedust/airmixturesorcombustibledustlayersundernormalatmosphericconditions.Itdoesnotapplyto-undergroundminingareas,-areaswhereariskcanariseduetothepresenceofhybridmixtures,-dustsofexplosivesthatdonotrequireatmosphericoxygenforcombustion,ortopyrophoricsubstances;-catastrophicfailureswhicharebeyondtheconceptofabnormalitydealtwithinthisstandard(seeNote1),-anyriskarisingfromanemissionofflammableortoxicgasfromthedust.Thisstandarddoesnottakeintoaccounttheeffectsofconsequentialdamagefollowingafireoranexplosion.NOTE1Catastrophicfailureinthiscontextisapplied,forexample,totheruptureofastoragesiloorapneumaticconveyor.NOTE2Inanyprocessplant,irrespectiveofsize,therecanbenumeroussourcesofignitionapartfromthoseassociatedwithequipment.Appropriateprecautionswillbenecessarytoensuresafetyinthiscontext,buttheseareoutsidethescopeofthisstandard.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:30P.;A4
【正文语种】:英语


Product Code:SAE AMS5844
Title:Alloy, Corrosion Resistant, Bars 20cr 35ni 35co 10mo, Vacuum Induction Plus Vacuum Consumable Electrode Melted, Solution Heat Treated and Work Strengthened
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion-resistant alloy in the form of bars.