hi,

A gfci monitors for a current imbalance between the Hot and Neutral
conductors.
A ground connection is not necessary. Per NEC 210-7

http://www.leviton.com/sections/techsupp/faq.htm#2 wire gfi


Regards.




"Gary S." wrote:

On Fri, 08 Aug 2003 17:01:16 -0400, Alex wrote:

GFCI?

Ground Fault Circuit Interruptor.

It detects a sudden rise in current to ground and shuts the circuit
off in a fraction of a second.

Fuses protect the circuit, GFCI protects people.

The present US Electrical Code requires them in areas where water is
nearby, including bathrooms, kitchens, garages, and outdoors.

You are encouraged to use them in other places where there is danger
of zapping yourself.

They are not a guarantee, but they boost the odds in your favor.