【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Basictestandmeasurementprocedures-Part3-9:Examinationsandmeasurements-Far-endcrosstalk
【原文标准名称】:纤维光学互连器件和无源元件基本试验和测量程序第3-9部分:检查和测量远端串音
【标准号】:IEC61300-3-9-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-03
【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/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;测量技术;光波导;紧固件;量具;串音衰减
【英文主题词】:Checkgauge;Components;Cross-talk;Crosstalkattenuation;Fasteners;Fibreoptics;Insulations;Measuringtechniques;Opticalwaveguides;Testing
【摘要】:ThispartofIEC1300describestheproceduretomeasurethefar-endcrosstalkoflightbetweenchannelsofamultiportMxNor1xNfibreopticpassivecomponents(switch,WDMor,inparticularcases,fan-out).Thefar-endcrosstalkisdefinedastheratiooftheopticalpowerthatgoesoutfromagivenoutputporttoanopticalpowerthatgoesoutfromanotheroutputport,nominallyisolatedfromthepreviousone.ForWDMsthesignaltravellinginthetwooutputpathshavedifferentwavelengthsandthefar-endcrosstalkcorrespondstotheratiooftheopticalpower,atagivenwavelength,thatgoesoutfromthecorrespondingoutputporttoanopticalpower,atthesamewavelength,thatgoesoutfromanotheroutputport,nominallyisolatedfromthepreviousoneatthatwavelength.ForWDMcomponentsthetermisolationismorecommonlyusedthanfar-endcrosstalk.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:13P.;A4
【正文语种】:英语


【英文标准名称】:Insulatedorprotectedcablesforpowersystems-Single-corecableswithpolymericinsulationofratedvoltagesabove30kV(Umequalto36kV)upto150kV(Umequalto170kV).
【原文标准名称】:电力系统用绝缘或保防电缆.额定电压30kV以上(Um等于36kV)至150kV(Um等于170kV)以下的聚合绝缘单芯电缆
【标准号】:NFC33-252-2002
【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】:
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_240_20
【页数】:62P;A4
【正文语种】:其他