IEC 60793的本部分规定了测量光纤衰减的统一要求，从而有助于检查商业用途的光纤和电缆。 描述了四种测量衰减的方法，其中一种是模拟光谱衰减的方法: -方法A:削减方法B:插入损耗；-方法C:后向散射；-方法D:模拟光谱衰减。 方法A至C适用于以下各类光纤的衰减测量: -A类多模光纤；-B类单模光纤。 方法C，后向散射，也包括点不连续的位置、损失和表征。 方法D仅适用于B类纤维。 所有四种方法共有的信息见第1条至第11条，与每种方法有关的信息分别见附件A、B、C和D。交叉引用:IEC 60793-1-22EN 60793-1-43IEC 61746-2IEC 61746-1EN 60793-1-22EN 61746-1IEC 60793-1-1IEC 60793-1-43EN 61746-2EN 60793- 1-1IEC TR 62316购买本文件时可获得的所有现行修订均包含在购买本文件中。

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 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. Method D is applicable only to class B fibres. Information common to all four methods appears in Clauses 1 to 11, and information pertaining to each individual method appears in Annexes A, B, C, and D, respectively.Cross References:IEC 60793-1-22EN 60793-1-43IEC 61746-2IEC 61746-1EN 60793-1-22EN 61746-1IEC 60793-1-1IEC 60793-1-43EN 61746-2EN 60793-1-1IEC TR 62316All current amendments available at time of purchase are included with the purchase of this document.