After the completion test for Zhuhai Guishan offshore wind farm in 2017, Zugo finished the completeion test for two 35 kV interconnected submarine cables in 110 kV wind farm booster station at Dongao Island, Dawanshan Island. The test item is AC withstand voltage test for the submarine cables from Sanjiao Island to Jida Joint Well, and cables between Jida Joint Well and Jida Substation.