SR EN IEC 60793-1-54:2018

<span style="color:red">NEW!</span>IEC 60793-1-54:2018 is available as <a href="https://webstore.iec.ch/publication/62458">IEC 60793-1-54:2018 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60793-1-54:2018 outlines a method for measuring the steady state response of optical fibres and optical cables exposed to gamma radiation. It can be employed to determine the level of radiation-induced attenuation produced in Class B single-mode or Class A, category A1 and A2 multimode optical fibres, in either cabled or uncabled form, due to exposure to gamma radiation. The attenuation of cabled and uncabled optical fibres generally increases when exposed to gamma radiation. This is primarily due to the trapping of radiolytic electrons and holes at defect sites in the glass (i.e. the formation of "colour centres"). This test procedure focuses on two regimes of interest: the low dose rate regime suitable for estimating the effect of environmental background radiation, and the hi