基本信息
| 标准名称： | 活塞式制冷压缩机主轴承 技术条件 |
| 中标分类： |
机械 >>
通用机械与设备 >>
制冷设备 |
| 发布日期： | |
| 实施日期： | 1999-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
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所属分类： 机械 通用机械与设备 制冷设备
【英文标准名称】:Fibreorganisersandclosurestobeusedinopticalfibrecommunicationsystems-Productspecifications-Sealeddomefibrespliceclosurestype1,forcategoryS&A
【原文标准名称】:用于光纤通信系统的纤维形成体和闭路.产品规范.S&A类1型密封圆盖纤维接缝闭路
【标准号】:BSEN50411-2-4-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2006-06-30
【实施或试行日期】:2006-06-30
【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】:电缆;类别;分类;设计;尺寸;电气工程;外壳;纤维光学;玻璃纤维;寿命;材料;单模纤维;光波导;光电子学;工作性能;性能要求;产品标准;密封件;分规范;管套;规范(验收);接缝盒;测试;密封性
【英文主题词】:Cables;Categories;Classification;Design;Dimensions;Electricalengineering;Enclosures;Fibreoptics;Glassfibres;Life(durability);Materials;Monomodefibres;Opticalwaveguides;Optoelectronics;Performanceinservice;Performancerequirements;Productstandards;Seals;Sectionalspecification;Sleeves;Specification(approval);Splicecassettes;Testing;Tightness
【摘要】:ProductdefinitionThisspecificationcontainstheinitial,startoflifedimensional,optical,mechanicalandenvironmentalperformancerequirementsofafullyinstalledspliceclosureinorderforittobecategorisedasanENstandardproduct.OperatingenvironmentThetestsselectedcombinedwiththeseverityanddurationarerepresentativeofanoutsideplantforsubterraneanand/oraerialenvironmentsdefinedby:ETS300019class8.1:undergroundlocations(withoutearthquakerequirement)IEC61753-1categoryS:subterraneanenvironmentcategoryA:aerialenvironmentReliabilityWhilsttheanticipatedservicelifeexpectancyoftheproductinthisenvironmentis20years,compliancewiththisspecificationdoesnotguaranteethereliabilityoftheproduct.Thisshouldbepredictedusingarecognisedreliabilityassessmentprogramme.QualityassuranceCompliancewiththisspecificationdoesnotguaranteethemanufacturingconsistencyoftheproduct.Thisshouldbemaintainedusingarecognisedqualityassuranceprogramme.AllowedfibreandcabletypesAlthoughtheperformancetestsarecarriedoutontestsampleswithdispersionunshiftedsinglemodefibre(seeAnnexA),theclosure,oncetestedaccordingtothisproductspecification,willbealsosuitedforotherfibretypeslikedispersionshifted,non-zerodispersionshiftedandmulti-modefibres.ThisclosurestandardallowsbothsinglemodeandmultimodefibretobeusedandcoversallIECstandardopticalfibrecableswiththeirvariousfibrecapacities,typesanddesigns.Thisincludes,butisnotlimitedto,opticalfibrecablestandardsEN60794-2(indoor),EN60794-3(outdoor).
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:36P.;A4
【正文语种】:英语