en.Wedoany.com Reported - On June 1, the Huaiyuan-Yinlian 220kV transmission line project of China Energy Engineering Group was successfully energized and commissioned. This marks another key milestone following the commissioning of the Huizhou-Yinlian 220kV transmission line on May 16. The successive grid connection and power transmission of the two lines signify the full and successful completion of the China UnionPay Huangshan Park Transmission Line Project (EPC).
The line starts from the 220kV framework of the Huaiyuan Substation and ends at the 220kV GIS switchgear of the Yinlian Substation, with a total length of 1.31 kilometers. The entire project innovatively adopts a hybrid laying method combining angle steel towers and cables, featuring high technical standards and refined construction techniques. The line uses 2×JL/G1A-400/50 steel-cored aluminum stranded wires, with two 72-core OPGW optical cables installed simultaneously; the power cable adopts the ZC-YJLW03-2-127/220 1×2000mm² single-core copper conductor cross-linked polyethylene insulated corrugated aluminum sheath longitudinal water-blocking flame-retardant type, accompanied by two 72-core non-metallic flame-retardant and ant-proof ordinary optical cables laid along the route. From equipment selection to construction configuration, a comprehensive barrier for the safe and stable operation of the power grid has been established.
As the first 220kV cable line in Huangshan City, the Huaiyuan-Yinlian 220kV line, together with the Huizhou-Yinlian 220kV line, forms a dual-power supply configuration, significantly enhancing the reliability and security level of the park's power supply. After full commissioning, the project will provide strong power support for the stable operation of the China UnionPay Huangshan Park, continuously boosting the vigorous development of industries such as big data and financial information in the park, and injecting strong momentum into the high-quality development of the digital economy in Huangshan City's High-tech Zone. (Duan Xingdong, Xu Nuo)
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