Squealing CRTs

From: Carlos Murillo <cmurillo_at_emtelsa.multi.net.co>
Date: Wed Oct 10 07:03:09 2001

Lead acid batteries can make spectacular short circuits. I
used to advise a group of students working on an HEV.
The battery voltage was 360V, I believe. A student managed
to short the terminals of the output of the main alternator
rectifier (connected directly to the battery) with some pliers.
The pliers fused at the joint and part of them was missing
entirely (vaporized?). The student had a couple of (minor) burns where
molten iron^H^H^H^H metal fell on him. It could have been worse;
fortunately, there were fuses that did blow.


At 05:31 PM 10/9/01 -0500, you wrote:
>At a place I used to work we were setting up a new raised floor.
>The (licensed!) electrician that was setting up the new UPS was
>leaning with his hand against one end of the bank of batteries.
>He nearly died and spent quite a long time in the hospital. The
>investigation kept the area closed for almost a week.
>Eric Dittman

Carlos E. Murillo-Sanchez carlos_murillo_at_nospammers.ieee.org
Received on Wed Oct 10 2001 - 07:03:09 BST

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