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Posted by terry on October 21, 2009, 6:55 am
> > ransley wrote:
:
> > >> I've had a GFCI outlet that powers a refrigerator and some kitchen a=
nd
> > >> basement outlets trip twice within the last year. =A0I've reset it a=
fter
> each
> > >> trip and it seems to go another six months before it trips again.
> > >> What's the best way to determine if this is just a random event or
> whether
> > >> the GFCI is pointing toward a potential shock hazard?
> > >> --
> > >> Bobby G.
> > > Gfci are not for a frige, if they trip the food is ruined, mine
> > > tripped I removed it.
> > Commercial kitchens require plug-in refrigeration (15/20A 120V) to be
> > GFCI protected.
> > The exceptions to GFCI requirements that were in the NEC have virtually
> > all been removed. That includes a garage receptacle behind a refrigerat=
or.
> > The arguments were:
> > "The permitted leakage current for typical cord and plug connected
> > equipment is 0.5 ma. The trip range for GFCI protective devices is 4-6
> > ma. For this utilization equipment to trip the GFCI device, it would
> > have 8 to 12 times the leakage current permitted by the product standar=
d."
> > "The present generation of GFCI devices do not have the problems of
> > 'nuisance tripping' that plagued the earlier devices."
> > RBM and John have good advice.
> > --
> > bud--
> Sorry I missed this and a few others on the first read through. New
> newserver.
> That's a good point about current leakage rates. =A0If the unit still tri=
ps
> with nothing else on the circuit AND a new model GFCI in place, then I am
> going to begin checking out the refrigerator with an ammeter* to see if
> there really is a current leak. =A0At that point I'd be willing to believ=
e
> it's not simply a nuisance trip, but an indication of a problem. =A0Hopef=
ully
> I'll remember to switch the fridge to a non-GFCI outlet when we're away. =
=A0If
> there's a ground fault when no one is home, that's not as bad as a meltdo=
wn
> of all our food.
> *(Why that spelling and not ampmeter, I've always wondered?)
> --
> Bobby G.- Hide quoted text -
> - Show quoted text -
Good question but how/why do many other units get adopted/used.
Is not 'Volt' named after the researcher Volta?
Another example is the Bel (or more commonly the Deci-bel =3D one tenth
of a Bel). Or more commonly and colloquially as Dbs. ("dee-bees").
Named after Alexander Graham Bell!
I think 'watt' and 'ohm' are unshortened?
Just a thought.
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>> basement outlets trip twice within the last year. I've reset it after each
>> trip and it seems to go another six months before it trips again.
>> What's the best way to determine if this is just a random event or whether
>> the GFCI is pointing toward a potential shock hazard?
>> --
>> Bobby G.