The project department of Sinohydro Bureau 4 Co, a subsidiary of POWERCHINA, completed all the work in the contract on schedule on the Soyo-Kapary (SK) Power Transmission and Transformation Project in Angola in Africa.

The work was completed on Dec 15, in accordance with the contract plan and the owner's requirements. The quality guarantee period for each component in the project has ended and they are all operating normally, with good feedback from the operating unit and owner.

The Soyo-Kapary Power Transmission and Transformation Project in Angola, built by Sinohydro Bureau 4 Co, is up and running well. [Photo/POWERCHINA]

Located in the Carter, Bengo and Zaire provinces on the north side of the capital of Angola -- Luanda -- the SK Power Transmission and Transformation Project has the highest voltage standard, highest voltage level and longest transmission distance of any power projects that have been built to date in Angola and indeed in the entire African region.

The construction period of the project was 42 months -- including a six month extension due to land acquisition by the owner -- starting on July 1, 2014 and going into production on Dec 16, 2017.

The project was divided into two phases, with the first phase mainly including four 400/220/60 kilovolt substations, two 60/15 kV substations, one 400 kV transmission line with a total length of 668 kilometers, two 60 kV transmission lines and other sub-projects.

While the second phase of the project mainly included two 220/60 kV substations, one 60/15 kV substation, 331 km of 220 kV transmission lines and 16 km of 60 kV transmission lines.

It has solved the long-term problem of insufficient power supplies in the northern region of Angola -- ending a history of unstable power grids in many provinces -- and it has played a positive role in the economic development of Angola.

It has also helped the Chinese equipment manufacturing industry to go abroad and promoted Chinese standards, as well as the country's construction technology and construction experience to the world.