MORECAMBE BAY FEED NEARS COMPLETION

摘要

GREAT BRITAIN — Morgan Sindall's Professional Services and Underground Professional Services (UnPS) had nearly finished the Front End Engineering Design (FEED) for the Morecambe Bay cable tunnel project for National Grid as Tunnels and Tunnelling went to press. The company said the 22km cable tunnel is one of the most challenging project of its type ever proposed. The tunnel will be 5m in diameter and will house two 400kV cable circuits to transport the electricity. Due to the strict ventilation requirements, and to ensure the high voltage (HV) cables do not overheat when fully loaded, an islet in the middle of the bay is proposed as a heat ventilation point and an emergency escape.