ZTT submarine, as supplier of this-220kV-power cable project in Nantong, not only ensures the quality of the products, timely delivery of the power cable, but also provides the construct supervisory service all the time.

This tunnel consists of 4-220kV overhead lines which let the construction process meets great pressure and difficulty. Especially the smaller safety space between the ground construction machinery and operating lines, the minimum horizontal distance only being 0.7 meters between the top pipe of the underground tunnel and operation line tower also bring great difficulty during the operating.

In order to make sure the successful construction and safety quality, ZTT submarine lays down the construction scheme carefully like making advanced geological prediction according to the features of the tunnel and investigation into the underground pipe, strictly controlling the progress, strengthening the process monitoring, etc. ZTT has made great efforts to ensure the quality and safety during the whole process while expecting to complete this project before the next spring festival.