Anti-icing Performance Evaluation of OPGW Based on BOTDA and OTDR

Abstract Under certain icing load, the optical fiber of OPGW is seriously affected by stress, which will not only affect operation quality line communication, but also threaten its own and safety, such as cable breaking, tower falling other accidents. At present, OTDR mainly used to test path loss in after icing, that can’t reflect judge damage state accurately. In this paper, a method combining BOTDA proposed detect damaged icing. Based on this, anti performance divided into healthy state, sub-health fault state.