[pure-silver] Re: Darkroom
- From: Dave Hornford <Dave.Hornford@xxxxxxxxxxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Tue, 11 Jan 2005 07:50:05 -0700
Georges Giralt wrote:
>GFIC ground fault interrupt (don't know for the C)
>Normally, the two electrical wires carry the same current. If something touch
>one wire, some current does not go to the other wire, but through the earth. So
>there is a difference in the amount of current seen by each wire. The GFC
>monitor this. If the difference is above the threshold, it opens the circuit.
>I've in my main garage line a 10mA GFC which saved my life a couple of times.
>It tripped without an electrical shock ! I, at first, do nto feel the current
>and wondered why it has tripped. I do recommend it in rooms where water and
>electricity mix. Especially ones where a lot of things can go wrong like
>darkroom....
>
>
The C is for Circuit. I have 4 GFIC breakers in my electrical panel - 2
are mandatory in the Canadian Electrical code (Jacuzzi & outside plug)
the other two are optional - one covers the two circuits in the darkroom
and one covers 2 of the 3 in the wall-of-fish-tanks. (GFIC's are not
great for motors that must be on all the time so I have a separate
non-GFIC for the freshwater filter that will trip a GFIC every couple of
days)
In addition to sensing ground faults, which Georges described they are
much faster breakers than normal breakers. A point I appreciated when I
had the temporary lights fall into my saltwater tank while both my arms
were in it arranging the rocks.
Dave
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