Tepco had an endoscope stuck in PCV of reactor2, “Cut and drop it into PCV”

On 3/19/2013, Fukushima Diary reported they measured 1Sv in PCV of reactor2.

(cf, 1 Sv/h in PCV of reactor2, “reaches the fatal dose in 7 hours” [URL])

During this survey, Tepco had the guide pipe of the scope stuck in the pit. On 4/22/2013, they announced they are planning to cut off the stuck guide pipe.

The cut pipe will be dropped on the grating part of PCV.

According to Tepco, there’s no coolant equipment or monitoring parts near the path of dropping. The work is scheduled from 4/24 to 4/26/2013.

The English report is not published yet.

 

Tepco had an endoscope stuck in PCV of reactor2, "Cut and drop it into PCV"

 

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130422_06-j.pdf

 

 

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Français :

Tepco a un endoscope coincé dans la PCV du réacteur 2 : “Coupez-le et balancez-le dans la PCV”

 

Le 19 mars 2013, le Fukushima Diary rapportait qu’ils avaient relevé 1 Sv dans la PCV (enceinte de confinement primaire)du réacteur 2. (cf. 1 Sv/h dans la PCV du réacteur 2 : La dose fatale en 7 heures)
Au cours de cette exploration, Tepco a coincé la tige-guide de l’endoscope dans le trou. Le 22 avril 2013, ils annoncent qu’ils prévoient de couper cette barre coincée.
La partie coupée de la tige tombera sur le grillage de la PCV.
Selon Tepco, il n’y a pas d’équipement du système de refroidissement ou de celui de contrôle à proximité du trajet de la chute. Le travail est prévu pour entre le 24 et le 26 avril 2013.
La version anglaise du rapport n’est pas encore publiée.

Tepco had an endoscope stuck in PCV of reactor2, "Cut and drop it into PCV"

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130422_06-j.pdf

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

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