During the typhoon "Shanzhu", the local maximum wind speed in Huizhou reached 16. Typhoon "Shanzhu" is rampant, the 110kV joint line a and B (n45-n49 tension section length is 1493m, representative span is 538m) N48 in Huizhou City has fallen tower, n47 has slight inclination. 110kV joint brand a and B line is a transmission line with important strategic significance, which undertakes the power supply task of a national base in Huizhou City. Huizhou Power Supply Bureau showed great trust in ers emergency repair system of Guangdong Hetian power transmission and transformation installation Co., Ltd. and informed Hetian Power Generation Co., Ltd. at the first time to require Hetian Power Generation Co., Ltd. to restore the operation of the line at the fastest speed. The terrain around the line is mountainous with strong weathering and sandy geology. The communication signal and traffic conditions are very poor. The small transportation is more than 2km, and the large machinery cannot reach it. The poor environmental situation makes it very difficult for emergency repair. Faced with many difficulties and obstacles, Zhao Xing, chairman of Guangdong Hefa power transmission and transformation installation Co., Ltd., personally took charge of the on-site emergency repair work. The company invested nearly 100 ers emergency repair teams to fight for this high-voltage line, which is responsible for the important use of Huizhou, day and night, and finally overcome various obstacles. The original tower of N48 was replaced with ers emergency repair tower, and the n47 was guyed. After reinforcement treatment, the power supply of the line can be restored as expected.