CAJ | 학술논문

针对 OPGW(光纤复合架空地线)易发生断股的现象，提出了采用布里渊光时域反射仪测量其内部光纤应变的断股检测方法。实验中将一段 OPGW 的两端固定在拉力机上并施加固定的拉力值，逐渐增加 OPGW 中断开的单丝数，记录布里渊光时域反射仪测量的光纤应变值。实验结果表明，该方法可实现对25%以上的断股区域截面积比的监测，为在线监测 OPGW断股状态提供了一种新的思路。
침대 OPGW(광섬복합가공지선)역발생단고적현상，제출료채용포리연광시역반사의측량기내부광섬응변적단고검측방법。실험중장일단 OPGW 적량단고정재랍력궤상병시가고정적랍력치，축점증가 OPGW 중단개적단사수，기록포리연광시역반사의측량적광섬응변치。실험결과표명，해방법가실현대25%이상적단고구역절면적비적감측，위재선감측 OPGW단고상태제공료일충신적사로。
As strand breakage is a common phenomenon in OPtical fiber composite overhead Ground Wire (OPGW),this paper presents a strand breakage detecting method by measuring the internal fiber strain with a Brillouin optical time domain reflecto-meter.In the experiments,it fixes the ends of a section of OPGW on a tensile machine,applies to them a fixed tensile force, gradually increases the number of broken fibers and records the measured fiber strain values.The results show that this method enables over 25% of the cross-sectional area in the strand broken area to be monitored,providing a new idea for monitoring the strand breakage in OPGW.