Mars 2011: Kärnkraftverket i Fukushima - utbruten och sammanfogad tråd

Leaked Fukushima reactor's blueprint may be on Internet
BY TOSHIHIRO OKUYAMA STAFF WRITER
2011/04/27

A blueprint believed to be of the crippled No. 1 reactor of the Fukushima No. 1 nuclear power plant, considered to have leaked from Tokyo Electric Power Co., was posted on the Internet, an apparent violation of its regulations on protection of nuclear materials.

TEPCO believes this blueprint is one of its confidential documents, but is unsure of how it was leaked to the public. Nancy Foust, the 45-year-old South Dakotan website manager of the site posting the blueprint, told The Asahi Shimbun that a member of a group composed of people from diverse industries, including the nuclear industry, found the document on the Internet.

The blueprint consists of two elevated views of the No. 1 reactor building: one in a north-south direction; the other from east to west.

It indicates where the reactor, isolation condensers and a recirculation pump are located in the building, along with the heights of all the equipment above sea level. The blueprint has "No. 1 reactor of the Fukushima No. 1 nuclear plant" and "Tokyo Electric Power Co." printed in kanji characters on the lower right.

TEPCO said at a news conference April 24 that the company suspects the blueprint is one of its internal documents, but has not confirmed how it was made public. TEPCO also said the blueprint, if proven to be genuine, is subject to the restrictions imposed under its regulations on nuclear materials protection. The No. 1 reactor was built by General Electric Co.