Court withdraws nuclear plant licence

[kristopher]

March 07, 2012
Court withdraws nuclear plant licence

The Mühleberg atomic plant near Bern will lose its operating licence at the end of June 2013 on security grounds, the Federal Administrative Court has ruled.

The court upheld a complaint by local opponents of the plant against the indefinite extension of the plant's licence by the environment ministry, granted at the end of 2009.

The 1972 plant, one of the oldest in Switzerland, is run by BKW Energy. Last September it was restarted after three months of annual checks and safety improvements.

Before the court’s ruling, Mühleberg's licence was open-ended as long as it met national nuclear safety requirements.

All Swiss ...

http://www.swissinfo.ch/eng/multimedia/picture_of_the_day/Court_withdraws_nuclear_plant_licence.html?cid=32250392

[kristopher]

1. Core Shroud of Mühleberg Nuclear Power Plant Was Found with a Huge Crack

Core Shroud of Mühleberg Nuclear Power Plant Was Found with a Huge Crack in 2009, Operator and Swiss Government Hid the Fact, Says Japan's Mainichi


(UPDATE) According to Switzerland's Beobachter (in German), the cracks are along the horizontal weld of the shroud, not "top to bottom" as Mainichi describes. The core spray system was also found with cracks. (H/T Atomfritz)







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...

Japan's Mainichi Shinbun ... reports that the plant operator BKW Energy and the nuclear regulating agency of the Swiss government hid the discovery in 2009 of a huge crack in the core shroud inside the Reactor Pressure Vessel.

From Mainichi Shinbun article (part):
ところが、福島原発事故後の昨年6月、地元メディアが、ミューレベルク原発の圧力容器内にある炉心シュラウドという高さ9メートルのステンレス製構造物に、上から下まで貫通するひび割れができていると報道。連邦核安全監督局は「ひび割れがあっても安全基準は満たされており、問題ない」と危険性を否定した。

However, the local media reported in June last year in the wake of the Fukushima I Nuclear Power Plant accident that the 9-meter high stainless-steel core shroud inside the Reactor Pressure Vessel at Mühleberg Nuclear Power Plant [there is only one reactor] had a crack from top to bottom. The federal nuclear safety regulation agency denied the risk, saying "Even if there is a crack, [the shroud] meets the safety standard, and there is no problem."

　これを、反原発団体などが「炉心シュラウドは燃料棒や制御棒を囲んでいる大事な構造物で、損傷によって燃料棒がずれるなどの危険がある」と批判。ひび割れが09年には見つかっていながら公表していなかったことへの不信感も加わって、行政裁判所に対し、連邦政府が09年に出した運転許可を無効にするよう求め提訴した。この日の判決で裁判所は、反原発団体の訴えをほぼ全面的に認めた。

Anti-nuclear groups criticized the comment, saying "The core shroud is an very important structure that surrounds nuclear fuel rods and control rods. The damage may cause the fuel rods to shift." The crack had been discovered in 2009 but it was not disclosed. The anti-nuclear group(s?) filed a suit in the Federal Administrative Court demanding the withdrawal of the operation license issued by the federal government in 2009. With the ruling [on March 7], the Federal Administrative Court upheld the complaint from the group.

The crack in the core shroud was ...

http://ex-skf.blogspot.com/2012/03/core-shroud-of-muhleberg-nuclear-power.html