On Wed, 22 Feb 2006 14:08:04 GMT, Ignoramus3408
wrote:

I have this Black and Decker 450 RPM drill:

http://igor.chudov.com/tmp/450-rpm-drill.jpg

When plugged into a GFCI outlet, it leaks electricity to ground and
pops the GFCI breaker. The leak is substantial, I believe, however
when plugged into a regular breaker (and handled with caution
appropriate for leaks to case), it actually works and does not blow
the breaker. So, I think, the leak is limited in extent.

My question is, what is the most likely culprit and how to approach
repair of it.

My another question is, what would be a typical application of this
drill. I am trying to decide if I need it for anything.

i
A good drill not to use standing on a metal ladder in a flooded shop
area (BTDT). Leakage enough to trip a GFCI is approaching lethal
levels, probably caused by a combination of insulation breakdown, crud
buildup, and humidity. It makes this unit a prime candidate for either
professional restoration or explosive decommissioning.
Gerry :-)}
London, Canada