中国：台山原発､燃料棒70本以上を破損：仏国営RFI（動画）：
China: Taishan Nuclear Power Plant, damaged more than 70 fuel rods: RFI
中国：台山核电站，损坏了 70 多根燃料棒：法国国家无线电 RFI
ー原子炉圧力容器の設計ミスかー
仏放射能NGO：
仏NGOはこのほど、内部告発者からの情報を入手した。
中国広東省
台山原子力発電所今年6月に、放射性希ガスの漏洩が報じられた。
仏国営ラジオ放送局：
RFI が、11月28日に報じた 。
- 台山原子力発電所について、
- 燃料棒が70本超破損したと、
当初の発表の5本をはるかに上回っていると明かした。
原子炉圧力容器の設計ミスが原因である可能性が高いという。
台山原発：
中国広核集団（CGN）とフランス電力（EDF）が共同出資で建設した。
EDFが30％の株式を保有する。
世界初の欧州加圧水型炉（EPR）を導入した原子力発電所である。
マカオから64kmの距離。
大紀元 エポックタイムズ
https://www.epochtimes.jp/2021/12/82648.html
Nuclear: the accident at the Taishan EPR plant is believed to be due to a design flaw
28 NOV 2021
The incident which led in July to the shutdown of a reactor at the Taishan EPR nuclear power plant in southern China
is believed to be due to a design flaw in the vessel, the French association CRIIRAD said on Saturday.
The Commission for Independent Research and Information on Radioactivity (CRIIRAD)
would get its information from a “whistleblower”.
“This is a Frenchman who works in the nuclear industry, having access to very precise technical information on the situation of the Taishan 1 reactor core,”
a CRIIRAD official told AFP.
Taishan is the only pressurized water reactor (EPR) plant in the world, with two reactors.
Four other EPR reactors are under construction,
all in Europe:
one in Finland,
one in France in Flamandville
and two in England
It is a tank design problem that would be the cause of the incident in Taishan reported on June 14, 2021.
This is a first explanation.
What is the tank?
The nuclear reactor vessel
is neither more nor less than the heart of the device.On the site of the French power plant manufacturer Framatome,
we can thus read that it is about “the equipment in which the water of the primary circuit is heated in contact with the nuclear fuel.
The water of the primary circuit
then goes circulate to the steam generators to transfer its heat to the water in the secondary circuit, transforming the latter into steam.The steam thus created then feeds a turbine, connected to an alternator to produce electricity “.
In short, a tank that malfunctions is a broken down plant.
Moreover, specifies a French government site devoted to the subject,
“unlike other devices in the primary circuit, such as steam generators or tank covers, the replacement of a tank is not an operation envisaged by EDF. “.
Clearly,
the lifespan of a plant is linked to the lifespan of its tank.In an EPR plant,
the water pressurization techniques are different but the tank plays an equally fundamental role.
“EDF underestimated the Chinese regime’s culture of secrecy”
At the end of May,
EDF was alerted by “an incident” on the reactor and discovered that, at CGN’s request,
the National Nuclear Safety Administration, the Chinese nuclear safety authority,
had raised the authorized gas concentration threshold as of December 2020.
rare in the primary circuit at 324 gigabecquerels per tonne of water (GBt / t)
– whereas it is 150 GBt / t in France –
to avoid the shutdown of the reactor in a region suffering from an electricity shortage for many months.
The effective rate
had already reached 290 GBt / t when the Frenchman was notified.However,
the intervention of American engineers from Framatome, a subsidiary of EDF, is necessary.