Re: (ET) E 20 - charger hum

["David Roden" <etpost drmm net>]

On 4 Jun 2006 at 8:39, Tim Humphrey wrote:

> Which kind of makes me wonder why we have a disconnect in the first 
> place.

In case a contactor sticks and you can't stop the tractor!

When I first started really getting into EVs almost 20 years ago, I heard 
about a '70s vintage EV hobbyist who decided he had to try out his 
not-quite-
finished conversion before having any kind of emergency disconnect in 
place. 
 The controller failed and the motor went full on!  He was careening down 
the road, braking with all his might, to no avail.

Fortunately he had a couple of batteries loose on the front floor of the 
car, and his tools on the seat beside him.  He was finally able to stop 
the 
car by beating a battery post with a hammer until it broke off.


David Roden - Akron, Ohio, USA

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