On Mon,2/1/2016 7:50 PM, DWKANEPE@aol.com wrote:
Just a point of information...a fuse or circuit breaker will NOT and
is not intended to prevent electrical shock.
That is WRONG.
Ground Fault Circuit Interrupter protection will!
GFCI's protect against a very different mechanism, namely leakage
current. GFCI's sample current in the phase (hot) and neutral
conductor, and open the circuit if they are out of balance by more than
6-10 mA, which means that current must be flowing on the Green wire, and
producing enough IR drop between the Green wire and other grounded
objects (like plumbing).
Fuses, breakers and other OCPD's are intended to protect wiring and,
in some cases, utilization equipment.
AND human life.
Fuses/breakers protect us in the case of a FAULT -- that is, something
causes a short between phase and exposed equipment, causing the exposed
equipment to be hot with respect to ground.
BTW -- I've been paid to TEACH and write tutorials on this stuff for
more than ten years.
73, Jim K9YC
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