【英文标准名称】:Guidanceforevaluatingexposurefrommultipleelectromagneticsources
【原文标准名称】:暴露于多个电磁源的评估指南
【标准号】:IEC/TR62630-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-03
【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/TC106
【标准类型】:()
【标准水平】:()
【中文主题词】:频带;无线的;定义;电气工程;电磁兼容性;电磁辐射;排放源;曝光;频率范围;磁场;移动无线电通信系统;窄带;辐射作用;辐射剂量;辐射暴露;辐射源;无线电设备;无线电干扰;无线电话;发射机
【英文主题词】:Bandoffrequencies;Cordless;Definitions;Electricalengineering;Electromagneticcompatibility;Electromagneticradiation;Emissionsources;Exposure;Frequencyranges;Magneticfields;Mobileradiosystems;Narrowband;Radiationaction;Radiationdose;Radiationexposure;Radiationsources;Radioequipment;Radiointerferences;Radiotelephones;Telecommunication;Transmitters
【摘要】:ThisTechnicalReportdescribesexposureevaluationconceptsandtechniquesfortheoverallexposurelevelinspatialregionsandoccupantscausedbythesimultaneousexposuretomultiplenarrowbandelectromagnetic(EM)sources.ThroughoutthisTechnicalReport,itisassumedthattheexposureevaluationoccursunderstaticconditions,i.e.,thesourcepositionandtransmit-modecharacteristics(e.g.emittedpower,modulationscheme,etc.)ofthedevice(s)undertestdonotvarysignificantlyoverthetimerequiredtocarryouttheevaluationusingthechosenevaluationtechnique(e.g.,fieldmeasurements).Thevastmajorityofwirelesscommunicationsystemsworldwideemploysignallingschemesfeaturingnarrowbandwaveforms,hereinafterdefinedassignalwaveformsoccupyingafrequencybandnotbroaderthan10%ofitscentralfrequency(justificationofthisthresholdisprovidedbelow).Forinformation,AnnexApresentstheoperatingsystembandsandchannelbandwidthsofseveralcommonwirelessservices.Wide-bandcommunicationsystems,e.g.,ultra-wideband(UWB)systemsemployingimpulsivewaveformswithfractionalbandwidthwellinexcessof10%,arerelativelynewtothemarketplace,haveexperiencedlimiteddeploymentsofar,andarenottypicallyregardedassignificantcontributorstoEMexposurelevelsduetolowtransmitpowerlevels.
【中国标准分类号】:N24
【国际标准分类号】:17_220_20;33_050_10;33_070_01
【页数】:50P.;A4
【正文语种】:英语


【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponentsperformancestandard-Part2-1:Fibreopticconnectorsterminatedonsingle-modefibreforcategoryU;Uncontrolledenvironment(IEC61753-2-1:2000);GermanversionEN61753-2-2-1:2000
【原文标准名称】:光纤互连装置和无源部件性能标准.第2-1部分:端接于U级单模纤维的光纤连接器.非受控环境
【标准号】:DINEN61753-2-1-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-08
【实施或试行日期】:2001-08-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:单模纤维;环境条件;电子设备及元件;纤维光学;连接工艺;内径;紧固件;性能;直径;电缆;电气工程;金属包头;测量技术;露天;元部件;电插头;光波导;尺寸;玻璃纤维电缆;测量;外径;试验;无源的;规范(验收)
【英文主题词】:
【摘要】:Thedocumentcontainsoptionalgradesofopticalperformancefortheattenuationrandommateandreturnlosstest.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:21P;A4
【正文语种】:德语