[7] Ressler G M, Milrad S M, Atallah E H et al. Synoptic-scale analysis of freezing rain events in Montreal， Quebec， Canada[J]. Weather & Forecasting, 27, 362-378(2012).

[33] Yilmaz G, Karlik S E. A distributed optical fiber sensor for temperature detection in power cables[J]. Sensors and Actuators a-Physical, 125, 148-55(2006).

[36] Tong J, Yang D, Gao Q et al. Research on Raman-OTDR sensing based optical phase conductor （OPPC） temperature monitoring and the section temperature field[C], 904405(2013).

[40] Chai Q, Luo Y, Ren J et al. Review on fiber-optic sensing in health monitoring of power grids[J]. Optical Engineering, 58, 072007.1-072007.20(2019).

[42] Ding Z W, Zhang X P, Zou N M et al. Phi-OTDR based on-line monitoring of overhead power transmission line[J]. Journal of Lightwave Technology, 39, 5163-5169(2021).

[45] Luo J, Hao Y, Ye Q et al. Development of optical fiber sensors based on brillouin scattering and FBG for on-line monitoring in overhead transmission lines[J]. Journal of Lightwave Technology, 31, 1559-1565(2013).