標(biāo)準(zhǔn)號(hào)：BS EN 60793-1-40-2003
中文標(biāo)準(zhǔn)名稱：光纖.測量方法和試驗(yàn)規(guī)程.衰減
英文標(biāo)準(zhǔn)名稱：Optical fibres - Part 1-40:Measurement methods and test procedures - Attenuation
標(biāo)準(zhǔn)類型：M33
發(fā)布日期：2004/2/6 12:00:00
實(shí)施日期：2004/2/6 12:00:00
中國標(biāo)準(zhǔn)分類號(hào)：M33
國際標(biāo)準(zhǔn)分類號(hào)：33.180.10
適用范圍：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.