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-   -   What happens when reclosers fail when you need them the most... (http://www.diychatroom.com/f18/what-happens-when-reclosers-fail-when-you-need-them-most-33881/)

rgsgww 12-16-2008 05:32 PM

What happens when reclosers fail when you need them the most...
 
http://www.youtube.com/watch?v=mvNA2...eature=related

This all happened on August 23, 1988, Started at 10:35AM at
Moores Mill Road, Bel Air, Maryland

It was a 3 alarm response...A tree service cut a limb onto 33kv lines...this caused a series of events that led to almost 20kv being introduced into houses. Several house fires started.

hoistdoctor 12-21-2008 06:47 PM

I recall seeing a video of that in fire department training. What happened I remember was that utility people were working on switchgear at the time and had the breaker on the 33kv disabled so it wouldn't open. A recloser would reclose a tripped breaker to burn away a fault. The ones I 'm familiar with will reclose three times before locking out.


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