Another major lift for Big Carl
The skyline of HPC has again changed with the successful lift of the second liner ring on Unit 1’s reactor building. The Sarens giant crane, known as Big Carl, swung into life in the middle of the night to lift the next level of the steel containment in place, following the liner cup and first liner ring. The 347-tonne ring lift takes the structure to a height of 32m – just one liner ring away from lifting the dome into place. The newly lifted liner ring 2 forms part of the reinforced cylinder that will sit around Unit 1’s nuclear reactor.
Progress made on installing supports
The MEH Alliance (Mechanical, Electrical and HVAC (heating, ventilation and air-conditioning)) is making great progress on the installation of mechanical supports on the lower level of Unit 1 safeguard building, with 75 supports installed to date. The team will be responsible for installing 333 supports, weighing 5.6 tonnes, on the embedment plates. The operation will last nine months before the team moves onto the next installation sequence.
Valves mark another milestone
The delivery of 63 small valves destined for the safeguard building in Unit 1 has not only opened-up the rest of the works in that building, but helped the site achieve yet another milestone. The globe check valves, now residing in a warehouse at Junction 24, will be one of the last components fitted within the cooling systems. They will control and isolate the flow of cooling water inside the pipework, releasing it so it can only move in one direction and does not flow back.
Taken from March edition of The Point