The spring has been a bad season for nuclear power plants.
On one cool March Day, both reactors operated at full power, delivering 2200 megawatts of electricity to the community.
In the bowels of the plant, there’s an electrical cable room that spreads the essential cables for the two reactors. It’s the electrical lifeblood for controlling two reactors. It separates the non-safety side of the building from the safety side, where all the emergency equipment is housed. Just below the plant's control room, two construction workers were trying to seal air leaks between the buildings. There must not be airflow between the two buildings, or potentially radioactive substances could leak from the reactor building to the environment.
They used foam rubber to seal the leaks. They also used candles to determine whether the leaks in the penetration had been successfully plugged by observing how the flame was affected by escaping air.
They put the candle too close to the foam rubber, and the foam burst into flame.
This fire disabled many safety systems, including the entire emergency core cooling system on Unit 1. When extinguished, the Unit 1 reactor was within an hour of starting a meltdown.
This wasn’t Fukushima but the Browns Ferry Nuclear Plant in Alabama. It was 35 years, 11 months, and 18 days before Fukushima. Years later, I would work at that nuclear plant and learn from the operators who experienced the fire.
The BF fire started around noon on March 22, 1975
4 years 6 days later would be TMI March 28, 1979
Chernobyl happened on April 26, 1986
Then, 35y 11 months, 18 days after the browns ferry fire came the Fukushima nuclear accident, when three nuclear reactors would melt down on March 11, 2011
This podcast allows me to share that fantastic story.