Posted by John T on February 13, 2009 at 17:15:30 from (98.115.40.108):
In Reply to: OT - GFCI posted by dr darren on February 13, 2009 at 15:52:22:
Doc,
1 - should there, or can there be 2 GFCI outlets on teh same circuit.
SURE You can have 2 or more GFCI outlets (just like any other regular outlets) on the same branch circuit.....THE QUESTION IS are they (later outlets) wired independant ORRRRRR is the downstream outlet still protected??????
Often one GFCI is wired while others downstream that ARE NOT GFCI (just regular duplex outlets) can still be protected. HOWEVER its also possible for the ones downtream to be independant and NOT trip out unless the branch circuit breaker in the panel trips
2 - one GFCI is popping all the time and all that is plugged into it is the .5 watt night light, but that night light is always on. why would it pop?
The GFCI pops if theres like 5 millimaps less Neutral return current then the current going out the hot Line.......Theres a Torroidal coil around BOTH the hot and Neutral but if the line current is equal to the return Neutral current the net is zero and no voltage is induced in the coil and the trip out mechanism doesnt function
PRACTICAL ANSWER: if BOTH receptacles are GFCI types I WOULD wire them both hot so one or the other can still function independantly.....
Tnere may be a lil diagram on the GFCI indicating which sets of wiring terminals to use, ITS NOT ROCKET SCIENCE they will show where to wire the source (branch circuit from panel) and downstream. Basically to be wired independant (both work on their own) the hot wire to the second downstream outlet (be it GFI or regular) is spliced so it stays hot regardless if the first GFI trips out ......
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