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BS EN 50377-8-5-2007 光纤通信系统中使用的连接器组和互连元件.产品规范.端接在IEC60793-2-50类B1.1和B1.3单模纤维上的LSH-PC单工型、U类复合金属套圈

作者:标准资料网 时间:2024-04-25 09:22:44  浏览:9217   来源:标准资料网
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【英文标准名称】:Connectorsetsandinterconnectcomponentstobeusedinopticalfibrecommunicationsystems-Productspecifications-LSH-PCsimplexterminatedonIEC60793-2-50categoryB1.1andB1.3singlemodefibre,compositeferrulecategoryU
【原文标准名称】:光纤通信系统中使用的连接器组和互连元件.产品规范.端接在IEC60793-2-50类B1.1和B1.3单模纤维上的LSH-PC单工型、U类复合金属套圈
【标准号】:BSEN50377-8-5-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-09-28
【实施或试行日期】:2007-09-28
【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】:类别;定心套筒;元部件;数据连接系统;数据传送;设计;尺寸;电插头;电气工程;环境条件;紧固件;纤维光学;总论;信息传递;测量技术;机械特性;文电处理;单模纤维;光波导;光电子学;产品规范;产品标准;性能;分规范;规范;规范(验收);通信;测试;传输特性;类型
【英文主题词】:Categories;Centeringsleeves;Components;Datalinksystem;Datatransfer;Design;Dimensions;Electricplugs;Electricalengineering;Environmentalconditions;Fasteners;Fibreoptics;Generalsection;Informationtransfer;Measuringtechniques;Mechanicalproperties;Messagehandling;Monomodefibres;Opticalwaveguides;Optoelectronics;Productspecifications;Productstandards;Properties;Sectionalspecification;Specification;Specification(approval);Telecommunication;Testing;Transmissioncharacteristics;Types
【摘要】:1.1ProductdefinitionThisEuropeanStandardcontainstheinitial,startoflifedimensional,optical,mechanicalandenvironmentalperformancerequirementswhichaterminatedandassembledsinglemoderesilientalignmentsleeveLSH-PCsimplexconnectorset(plug/adaptor/plug),adaptorandpatchcordmustmeetinorderforittobecategorisedasanENstandardproduct.Sincedifferentvariantsandgradesofperformancearepermitted,productmarkingdetailsaregivenin3.5.1.2IntermateabilityAlthoughallproductsconformingtotherequirementsofthisstandardwillintermate,theresultinglevelofrandomattenuationperformancewillonlybeensuredinaccordancewithTable1.Theintentionisthatthiswillbetrueirrespectiveofthemanufacturingsource(s)oftheproduct.Whenintermatingplugvariantshavingdifferentattenuationgrades,theresultinglevelofattenuationcannotbeassuredtobeanybetterthantheworstattenuationgrade.TheintermatingofagradeCplugwithagradeBplugwillresultinanuncertainlevelofrandomattenuationperformance.1.3OperatingenvironmentThetestsselectedcombinedwiththeseveritiesanddurationsarerepresentativeofacategoryUenvironmentasdefinedinEN61753-1.1.4ReliabilityWhilsttheanticipatedservicelifeexpectancyoftheproductinthisenvironmentis20years,compliancewiththisstandarddoesnotguaranteethereliabilityoftheproduct.Thisshouldbepredictedusingarecognisedreliabilityassessmentprogramme.1.5QualityassuranceCompliancewiththisstandarddoesnotguaranteethemanufacturingconsistencyoftheproduct.Thisshouldbemaintainedusingarecognisedqualityassuranceprogramme.
【中国标准分类号】:L23
【国际标准分类号】:33_180_20
【页数】:40P.;A4
【正文语种】:英语


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Product Code:SAE J1342
Title:Test Method for Determining Power Consumption of Engine Cooling Fan Drive Systems
Issuing Committee:Cooling Systems Standards Committee
Scope:The technique outlined in this SAE Recommended Practice was developed as part of an overall program for determining and evaluating fuel consumption of heavy-duty trucks and buses.It is recommended that the specific operating conditions be carefully reviewed on the basis of actual installation data. Cooling requirements are affected by all heat exchangers that are cooled by the fan-drive system. These may include radiators, condensers, charge air coolers, or oil coolers.Because of the variation in size, shape, configuration, and mountings available in cooling fans and fan-drive systems, specific test devices have not been included.Using know power/speed relationships for a given fan, this procedure can be used to calculate the fan-drive system's power consumption for engine cooling systems using fixed-ratio, speed modulating, and on/off fan drives. This power consumption may then be used in determining engine net power per SAE J1349. For fan power/speed relationships, refer to SAE J1339.
基本信息
标准名称:直流放大器特性和测试方法
英文名称:Direct current amplifiers-Characteristics and test methods
中标分类: 能源、核技术 >> 核仪器与核探测器 >> 通用核仪器
ICS分类: 电信、音频和视频技术 >> 音频、视频和视听工程 >> 放大器
发布部门:国家技术监督局
发布日期:1992-01-02
实施日期:1993-07-01
首发日期:1992-12-17
作废日期:1900-01-01
主管部门:国防科学技术工业委员会
归口单位:全国核仪器仪表标准化技术委员会
起草单位:中国原子能科学研究院
出版社:中国标准出版社
出版日期:1900-01-01
页数:平装16开, 页数:16, 字数:27千字
适用范围

本标准规定了直流放大器特性及测试方法。本标准适用于核测量设备中放大微弱直流电流信号的直流放大器,例如电离室高内阻电流源产生的微弱电流信号,适用范围为10-6~10-14A。直流放大器可以是单独的或作为其它仪器的一部分。

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所属分类: 能源 核技术 核仪器与核探测器 通用核仪器 电信 音频和视频技术 音频 视频和视听工程 放大器

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