BS EN 60793-1-40-2003 光纤.测量方法和试验规程.衰减

标准号：BS EN 60793-1-40-2003
中文标准名称：光纤.测量方法和试验规程.衰减
英文标准名称：Optical fibres - Part 1-40:Measurement methods and test procedures - Attenuation
标准类型：M33
发布日期：2004/2/6 12:00:00
实施日期：2004/2/6 12:00:00
中国标准分类号：M33
国际标准分类号：33.180.10
适用范围：This part of IEC 60793 establishes uniform requirements for measuring the attenuation of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. Four methods are described for measuring attenuation, one of which being that for modelling spectral attenuation: - method A: cut-back; - method B: insertion loss; - method C: backscattering; - method D: modelling spectral attenuation. Methods A to C apply to the measurement of attenuation for all categories of the following fibres: - class A multimode fibres; - class B single-mode fibres. Method C, backscattering, also covers the location, losses and characterization of point discontinuities. To date, method D has been demonstrated only on class B fibres. Information common to all three measurements, and to the modelling method, appears in clauses 1 to 8, and information pertaining to each individual method appears in annexes A, B, C, and D, respectively.