Electricity companies implementing tsunami countermeasures before the nuclear accident did not disclose information

Electricity companies implementing tsunami countermeasures before the nuclear accident did not disclose information, March 15 19:53

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Before the accident at the Fukushima Daiichi Nuclear Power Station, NHK found that several power companies other than TEPCO were pushing ahead with unexpected tsunami countermeasures. However, most measures have not been announced, and experts point out that verification of the constitution of TEPCO and the electric power industry is important, as if the measures had been announced, it was possible that the measures had progressed as a whole industry. .

Nine years ago, the Fukushima Daiichi nuclear power plant was hit by a tsunami of more than 15 meters, which exceeded TEPCO's expectations, causing a meltdown.

NHK reported on tsunami countermeasures by electric power companies prior to the accident. At Chubu Electric Power and Hamaoka Nuclear Power Plant in Shizuoka Prefecture, considering the possibility of seawater entering the premises from an underground tunnel due to an unexpectedly large tsunami, The installation of a more waterproof door was being promoted.

In addition, work was underway to prevent seawater from entering by closing gaps in the pipes, and the design of seawalls with a height of 10 meters or more was started.

Nippon Nuclear Power also visited the Hamaoka Nuclear Power Plant, and at the Tokai Daini Nuclear Power Plant in Ibaraki Prefecture, they were working to create more embankments and waterproof the reactor building as a tsunami countermeasure that exceeded expectations.

However, most of these measures have not been announced, and Chubu Electric Power stated that "some tsunami countermeasures were not announced because the company had not decided on it."

In addition, it is known that Nippon Nuclear Power Company, in accordance with TEPCO's policy, did not report any measures against huge tsunami to the government, but did not disclose the reasons for unpublished information.

Prof. Hiroshi Tasaka, professor of Tama University, who is familiar with the nuclear industry, applauded the fact that the two companies were working on the measures, and commented on the background that they did not disclose. The industry has a culture of worry that companies will have to do it, and there will be unnecessary anxiety from the residents. "

He added, "If it was announced, the media would be taken up and the world would pay attention, and other power sources would have to move. In that case, TEPCO might have taken measures early." He points out that it is important to verify the nature of the power industry and the power industry.

For more details, we will tell you about the NHK special “Meltdown ZERO nuclear power plant accident could not be prevented-overlooked“ branch point ”-from 9 PM on the 15th.