China's first three-core 220kV photoelectric composite submarine cable was successfully delivered

Recently, Three Gorges New Energy Jiangsu Xiangshui Offshore Wind Power Project three-core 220kV high-voltage photoelectric composite submarine cable was successfully delivered, which is the first three-core AC high-voltage submarine cable with the highest voltage level, the largest length and the most optical fiber in China, filling a number of technical gaps in domestic high-voltage submarine cables and marking another step
towards higher voltage levels in the construction of China's large-scale offshore wind farms.

It is understood that the project plans to install 55 3MW/4MW offshore wind turbines with a total installed capacity of 202MW
.
The wind farm is equipped with a 220kV offshore booster station, a 35kV in-field collector line of 84.
6km and a 220kV outbound submarine cable
line of 12.
9km.
The submarine main line adopts a three-core 500mm2 submarine photoelectric composite cable with a voltage level of 220kV, which will become the highest voltage level three-core submarine cable project in China that has been successfully energized after operation
.

In terms of economic benefits, high-voltage three-core photoelectric composite submarine cable can reduce the submarine routing area, reduce the loss of products and transmission, and the cost is only 50% of similar foreign products, and the related transportation costs, operation and maintenance costs are also greatly reduced, which has a positive impact
on improving the economic benefits of Xiangshui offshore wind power projects.