BS EN 50411-3-2-2011 用于光纤传递系统的纤维形成体和闭路.产品规范.单模光纤机械接头

标准号：BS EN 50411-3-2-2011
中文标准名称：用于光纤传递系统的纤维形成体和闭路.产品规范.单模光纤机械接头
英文标准名称：Fibre organisers and closures to be used in optical fibre communication systems. Product specifications. Singlemode mechanical fibre splice
标准类型：M33
发布日期：2011/4/30 12:00:00
实施日期：2011/4/30 12:00:00
中国标准分类号：M33
国际标准分类号：33.180.20
适用范围：1.1 Product definitionThis European Standard contains the initial, start of life dimensional, optical, mechanical and environmentalperformance requirements, which a singlemode mechanical splice shall meet in order for it to be categorisedas an EN standard product.Since different variants and grades of performance are permitted, product marking and identification detailsare given in 3.5.Although in this document the product is qualified for EN 60793-2-50 types B1.1 and B1.3 singlemode fibres,it may also be suitable for other fibre types.1.2 InteroperabilityThe installed mechanical splice fits into a fibre management system with optical fibre splice cassettes orsplice trays. This European Standard specifies the following two physical interface dimensions:a) cross sectional profile with width, height or diameter (in millimetres);b) length (in millimetres).1.3 Expected performanceIn this document, the performance of a mechanical splice is given with identical fibres only. Lossesassociated with fibre cladding diameter and mode field mismatch are not taken into account. The measuredattenuation is a function of the core concentricity, cladding non-circularity and alignment capability.The optical return loss performance is a function of the index matching gel and the fibre end face preparation.1.4 Operating environmentThe tests selected combined with the severities and durations are representative of an outdoor enclosedenvironment defined as category U in EN 61753-1. To ensure that the product can be used in closures,boxes or street cabinet for categories A, G and S (as defined EN 61753-1) the specified lower temperature isextended to - 40 °C and requirements for temporary flooding have been added.1.5 ReliabilityWhilst the anticipated service life expectancy of the product in this environment is 20 years, compliance withthis specification does not guarantee the reliability of the product. This should be predicted using arecognised reliability assessment programme.1.6 Quality assuranceCompliance with this specification does not guarantee the manufacturing consistency of the product. Thisstandard does not cover quality insurance.