In July 2015, Peiport electric signed an order for 252kV embedded optical fiber composite insulator, which is mainly used in Henan Xuchang changge'nan power transmission and transformation project, Hunan Zhuzhou Youdong substation project and Hunan Zhuzhou Tuanshan substation project. In September of the same year, it signed an order for 126kV embedded optical fiber composite insulator, which further consolidated the market, and also reflected the more mature and leading position of electric embedded optical fiber composite insulator technology on the other side.