20 Mars 2013
According to Tepco, the power blackout of Fukushima plant was caused by a mouse that came in the terminals to have caused a short circuit.
The panel board was provisionally installed on the bed of a truck on 3/18/2011. Knowing the risk, Tepco has been leaving it there.
The panel board was for ractor3 and 4. There are 6 more provisional panel boards for these reactors.
The terminal and the wall were burnt and the mouse was dead underneath.
http://photo.tepco.co.jp/date/2013/201303-j/130320-01j.html
http://www.fnn-news.com/news/headlines/articles/CONN00242543.html
http://www.tokyo-np.co.jp/s/article/2013032090071113.html