ST Alpha - "if they had been upgraded like recomended 5 years ago they apparently would have been withing limits" (Reading a Post)

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In response to "Didn't the reactors exceed expectations? They withstanded a 9.0 earthquake + tsunami when they weren't designed to do so." by Strongbad

if they had been upgraded like recomended 5 years ago they apparently would have been withing limits

Posted by Danedukenuuk Apr 1 '11, 05:48

thats is quite amazing really

how much of the damage was caused by tsunami and how much by quake and how much by later damage is too early to say but the tsunami did a lot too i'd suspect yes

Responses:

But the loss of power wouldn't have been changed, I suspect. -- nm - Strongbad Apr 1, 05:52 17
- hard to say with the data avaiable - Danedukenuuk Apr 1, 05:57 3
  - that area is well known to have a risk for 9+ earthquakes. you can't build a nuke plant without putting in a safety margin. -- nm - loosilu Apr 1, 05:59 2
    - the plant was originally buil and no quake above richter scale level 8 was imaging and the plant was layouted to withstan a level 8.3 -- nm - Danedukenuuk Apr 1, 06:00 1
      - this is what I'm saying. that area is at risk for higher. -- nm - loosilu Apr 1, 06:02
- and that's not ok. they should have had backups for the backups. -- nm - loosilu Apr 1, 05:55 12
  - I agree. - Strongbad Apr 1, 06:00 2
    - just becorse you have the structure standing is not the same as the plant withstood a quake and tsunami - Danedukenuuk Apr 1, 06:12 1
      - You want to talk safer? Fine. - Strongbad Apr 1, 09:07
  - they have a 4 layer backup system (or normally have) -- nm - Danedukenuuk Apr 1, 05:59
  - There were 3 systems in place. Hindsight says it wasn't enough. But 3 redundancies his hardly a lack of foresight. -- nm - TWuG Apr 1, 05:58 7
    - that depends on the backup systems - Danedukenuuk Apr 1, 06:07 3
      - Electric grid powered pumps backed up by diesel generator powered pumps backed up by battery powered pumps. Reasonably, what would be the next back-up - TWuG Apr 1, 06:12 2
        
        you know that is the problem right there only nuclear powerplant engenners can actually discuss this - Danedukenuuk Apr 1, 06:15
        
        hand crank -- nm - znufrii Apr 1, 06:12
    - their plans showed very little foresight, and they knew it. -- (link) - loosilu Apr 1, 06:00 2
      - they also send in the workers without dosimeters - Danedukenuuk Apr 1, 06:03 1
        
        yep, and they don't have nearly enough suits. it's a mess. There's no excuse for that for a nuke plant in that place. -- nm - loosilu Apr 1, 06:04

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if they had been upgraded like recomended 5 years ago they apparently would have been withing limits

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