Vogtle reports 'unusual event' after fire alarm sounds

Monday, Nov. 19, 2012 10:24 AM
Last updated 5:03 PM
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A fire alarm at Plant Vogtle prompted Southern Nuclear to declare an “unusual event” Friday to the U.S. Nuclear Regulatory Commission, although inspectors quickly determined there was no fire.

The unusual event is the lowest of four nuclear plant emergency classifications used by federal regulators.

Company officials said the alarm activated in an auxiliary building access tunnel about 3 p.m. Friday, but responders who reached the area within five minutes found no evidence of a fire.

The cause of the alarm remains under investigation. Plant operations were not affected.

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dichotomy
32909
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dichotomy 11/19/12 - 12:27 pm
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If it can malfunction when

If it can malfunction when there is not a fire it can malfuntion when there IS a fire. Every sensor, gauge, valve, control, etc., in a nuclear facility needs triple or quadruple redundancy. The additional upfront cost is negligible compared to the aftermath. And I am pro-nuclear power in case anyone is wondering.

dwb619
93533
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dwb619 11/19/12 - 01:34 pm
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back ups

Vogtle Units 1 and 2 have normal power supply(n train) , and three back up systems ,A train,B train, and C train, on all crucial components. Each "train" is separated so that one event will not disable the primary and all back ups.

faithson
5158
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faithson 11/19/12 - 02:51 pm
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One thing I found from having

One thing I found from having a relationship with a couple of top notch electrical and valve engineers at Vogtle is they stay on top of everything, all the time. For the general public, but especially for themselves, they have a vested interest in safety. I used to be anti-nuclear until I got to know these guys and got a comprehensive tour of the plant (old days before 9/11).

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