i worked with this sort of eqipment and in all cases as far as i could
determine it came down to human error, there is a process to follow to
prevent from coming back over the power lead. but don't know how you
are going to fool proof whatever it is you are trying to fool proof,
humans will be humans.

the best safety prevention is a safety pack to plug the device into or
a safety switch fitted to the power supply.

len

On Tue, 8 Feb 2005 12:05:30 +0000, hoods
wrote:

snipped
--
happy gardening
'it works for me it could work for you,'

"in the end ya' gotta do what ya' gotta do" but consider others and the environment
http://members.optusnet.com.au/~gardenlen1/

my e/mail addies have spam filters you should know what to delete before you send.