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Japan:TEPCO never expected hydrogen explosions: report

Wednesday, August 17, 2011

Laaska News  August 17,2011

A government investigation has found that no one at the utility operating the crippled Fukushima Daiichi nuclear power plant had expected hydrogen explosions to occur at the plant.

The committee investigating the accident has been hearing the testimony of officials from government and the utility, the Tokyo Electric Power Company.

It has learned that Tokyo Electric officials discussed the hydrogen explosion that occurred at the No. 1 reactor building on March 12th, one day after the quake and tsunami.

The utility officials said nobody had expected such an explosion, and that attention was focused on the state of the reactors’ cores and containment vessels.

They said they discussed ways to prevent similar explosions after the blast. But they were unable to implement them due to high levels of radiation at the site resulting in a 2nd explosion at the No. 3 reactor building on March 14th.

The reactors were deprived of their cooling functions after the quake and tsunami, causing damage to the reactor cores. It is believed this caused a massive buildup of hydrogen in the containment vessels resulting in the explosions.

TEPCO officials say they were aware that a core meltdown could cause a hydrogen explosion, but had never considered the possibility of a blast outside a reactor.

This finding exposes the utility’s underestimation of the potential dangers at the plant.


Laaska News.