The 900 tonne containment vessel bottom head for Vogtle unit 4 has been lowered into place, marking a major milestone for the Georgia construction project.
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| Vogtle 4's containment vessel bottom head is hoisted into place (Image: Georgia Power) |
The massive component is nearly 40m wide and 12m tall, and was fabricated on site from dozens of individual steel plates by project contractor CB&I. The operation to lift it into place using one of the world's largest cranes took approximately听four hours to complete.
Vogtle 4 is the second of two AP1000 reactors being built alongside two existing pressurised water reactors听at the site near Waynesboro, and has been under construction since November 2013. Work began on unit 3 in March 2013, and lessons learned from that project are contributing to increased efficiency in the construction of unit 4, according to 47.5%-owner Georgia Power.
Vogtle 3 is currently anticipated to enter commercial operation in the fourth quarter of 2017, with unit 4 following in the fourth quarter of 2018, at which time Vogtle will become the USA's only four-unit nuclear power plant site.
Researched and written
by 抖阴传媒在线 Nuclear News
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