Fessenheim

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Safety authority asks for steam generator measures

Tuesday, June 24, 2008

Electricité de France has been given until 30 September to implement preventative safety measures in steam generators at its French nuclear reactors including plugging tubes affected by an anomaly in anti-vibration measures.

France's Nuclear Safety Authority (Autorité De Sûreté Nucléaire, ASN) has released a letter issued to the utility on 24 April calling for some steam generator tubes to be plugged to prevent the risk of their rupturing. The company must also implement enhanced measures to detect leaks between primary and secondary coolant circuits pending the completion of the plugging work.

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EDF criticised for 'lack of rigour' in security at Fessenheim nuclear plant

Saturday, April 7, 2007

PARIS (Thomson Financial) - The French nuclear security authority, ASN, has criticised EDF for 'a lack of rigour' in the application of security procedures at its Fessenheim nuclear power plant in north-east France.

In an assessment presented to the press today, the ASN said that 'despite the action initiated (...), the operator (EDF) shows a lack of rigour in the application of procedures.'

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INES-event
INES 2

METALLURGICAL FLAW IN SECONDARY STEAM PIPE

Friday, September 27, 1991

A metallurgical flaw (11 cm long, 3 cm deep) was discovered during checks carried out on one of the secondary circuit pipes feeding the turbine generator.

See additional text next page.

BASIS FOR RATING: Potential consequences on the safety of the installation (third barrier fault).

DIFFICULTIES IN RATING: This classification may be reassessed following the results of expertise. table A1 - inadequate - possible.

Category: Power Reactor Fessenheim France