<Anchor>
Today's (11th) accident appears to have led to an explosion as a gap was created in the process of increasing the internal pressure of the heat exchanger.
The accident occurred at one of the 500 largest companies in Korea and is subject to the Severe Accident Punishment Act.
Next is KBC reporter Park Seung-hyun.
<Reporter>
A cover made of carbon steel, weighing 1 ton, bounced off 30 meters and spread across the floor.
The violently shaking CCTV shows just how powerful the explosion was.
The accident occurred while the internal pressure was raised to check for gas leaks after cleaning and sealing the heat exchanger.
[Kwan-sik Choi / Manager of Yeosu Branch of the Federation of Trade Unions: In this state, the pressure rises, so (the cover) protrudes forward.
It can be seen that these bolts that were fastening have burst.] For the
test operation, the pressure was raised to 17 times the normal atmospheric pressure, which is 7 times higher than the normal atmospheric pressure.
The one on the floor behind me is the heat exchanger cover.
At the time of the explosion, the shroud flew straight forward, smashing the workers.
At that time, there were 8 workers at the site, and it seems that the damage was increased without securing a safe distance.
[Byung-Man Cho / Head of Technology Planning Team at Yeocheon NCC: It seems that there were several people around the cover that came off.
So I think that might be the cause of the fatal accident.]
Yeocheon NCC CEO Kim Jae-yul issued an apology at the scene of the accident and bowed his head, saying that he would do his best to solve the accident and support the bereaved family.
(Video coverage: KBC Bok-soo Choi, Hyung-soo Kim)
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