A blogger, Destin, talked TVA into letting him film the refueling process at Browns Ferry in Alabama. Browns Ferry is a three unit boiling water reactor plant. The design is essentially the same as the reactors at Fukushima. The hour and 45 minute video is overly long; and Destin’s narration can be a little grating at times; but overall he does a great job. It’s worth your time.
We also get a pretty good feeling for the plant’s safety culture. //
much of the video is taken up by Destin’s going through various check points, each manned by 3 or 4 people sitting around watching screens. While there are scores of people on the refueling floor, only a handful seem to be actually doing something to the plant. The actual shifting of the fuel bundles is done by a three person team, and is largely automated. At one point, a lady berates Destin’s guide who outranks her for letting Destin walk down a stairs facing forward. The stairs were narrower and steeper than normal. The rule is you have to treat it like a ladder.
Destin is told not to step on the floor drains. The problem is the moisture might contaminate his shoes, and set off alarms. The radiation in the drain is not from the plant. It’s normal background, naturally occurring radon and daughters. Nuclear plants don’t produce radon. On the way out, Destin’s camera fails to clear a check. So they disassemble the camera and put each piece into the detector separately, to allow the pieces out of the plant. Once again the source is background radon. //
On a positive note, TVA should be congratulated for allowing this visit. It should be commonplace. If I were king of the world, I’d have a glassed in viewing gallery, high in every reactor’s refueling space. During outages, I would invite everybody to walk through and get a look at what’s going on. Most of the people will come out as enthusiastic about nuclear as Destin.
