Posts Tagged ‘EDF’
Thursday, September 6, 2012 @ 05:09 PM gHale
A chemical reaction at the Fessenheim nuclear power plant in eastern France injured several people and triggered a brief fire alert Wednesday, officials said.
The incident, sparked by a chemical reaction, quickly came under control, the officials at the local government prefecture office and the fire services said.
At the origin of their injuries was a release of hydrogen peroxide vapor, “following the injection of hydrogen peroxide in a tank,” said Europe 1 prefecture of Haut-Rhin.
French power utility EDF, which operates the plant, said there had been a steam leak there but denied initial reports from the local fire brigade that a fire had broken out.
“No fire broke out,” an EDF spokeswoman said. “Steam escaped during a maintenance operation which set off the fire alarm,” she said, adding that the incident hurt two EDF staff.
Fessenheim, France’s oldest nuclear power plant, has two reactors that went into service in the 1970s. It operates in the Alsace region of France.
There are two 900 megawatt reactors at Fessenheim, which started up in 1977 and is on tap to shut down in the coming decade according to pledges made by Francois Hollande during this year’s French presidential election.
Environmentalists have raising concerns about the plant, especially since a nuclear accident caused by an earthquake in Fukushima, Japan, in 2011.
The plant is within 15 miles of towns in France, Switzerland, and Germany which have a combined population of 100,000.
Former French president Nicolas Sarkozy frequently pledged to keep Fessenheim open, saying closure would come “at the cost of jobs in the nuclear industry, the cost of our industrial competitiveness and the cost of our energy independence.”
Hollande promised to reduce France’s reliance on nuclear energy from 75 percent to 50 percent by shutting down 24 reactors by 2025.
Tuesday, April 10, 2012 @ 05:04 PM gHale
A fire started in the No. 2 reactor building of the Penly Nuclear Power Plant (NPP) northeast of Dieppe, France last Thursday, said plant operator Electricite de France SA (EDF).
EDF teams and local fire brigades entered the reactor building and extinguished the blaze, which included small quantities of burning oil. Firemen ensured the fire was totally out.
Around 7:30 p.m., EDF then informed the French nuclear agency, Autorité de Sûreté Nucléaire (ASN), a defect on a primary pump seal led to a water leak above the normal values. However, dedicated circuits were able to collect the leak, officials said.
By the next day, EDF confirmed with ASN the leak stopped.
There were no injuries and no radiological consequences from the fire or subsequent pump leak. ASN provisional classification of the incident is at level 1 on the INES scale.
The Penly reactor will remain shut down until authorized for restart by ASN, which will undertake a technical assessment of the incident by ASN and its technical support organization the Institute for Radiological Protection and Nuclear Safety.
The primary pumps ensure the water circulation in the reactor primary circuit. In normal situation, a water injection inside some mechanical parts of the pump enables the cooling activity. This system consists of circuits dedicated to the collection of this water. At the Penly NPP, internal damages in the pump led to the collection of abnormal quantities of leaks, bigger than expected. The primary pumps are in the reactor building.
EDF said a faulty joint on a pump used to cool the reactor had caused a leak inside the reactor building. The joint suffered damage in the fire, which occurred after lubricant from one of the reactor’s cooling pumps spilled on the floor, generating smoke and small flames. The reactor automatically shut down after the fire and continued to cool normally.