On 8/19/2014 7:04 PM, wrote:

It was explained in the seminar but not demonstrated that
if you fed a hotdog into the blade - but not holding it in your hand -
- ie just having the hotdog held between 2 pieces of wood -
the sawstop would not function to stop the blade ...
it would cut the hotdog !
That's what I couldn't understand.
That's what I need to have explained.

Capacitance is the ability to store an electrical charge (your body has
capacitance).

There must also be a conductor to allow that electrical charge to flow
(or show a difference in potential) along a certain path (to the
mechanism of the sawstop).

Wood, is not a good conductor (unless wet) of electricity, nor does it
have sufficient capacitance to store enough of charge on it own.

Therefore the hot dog, when affixed between two pieces of wood (having
no, or a very week, electrical charge; and not being a good conductor)
will likely not create the difference/electrical flow necessary to trip
the sawstop circuit.

That's a pretty simplistic explanation, and it has been a long time ...

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