Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Acid leak closes Sizewell B

BRITISH ENERGY'S Sizewell B nuclear power station in Suffolk has shut down for a month after the cooling system for the reactor head began to leak boric acid vapour in early May.

Engineers were this week working to replace the seals after the acid leak triggered a shut down of the reactor on 11 May. The release was contained by Sizewell B's pressure vessel, which contains the reactor and primary radiological shielding.

A British Energy spokesman said that reactor head seals on similar pressurised water reactors are replaced as a matter of course every 18 months. But operators of reactors in other countries have reported occasional interim failures. The leak was therefore 'not unusual', he said.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.