-=PCTechTalk=- Re: Question about UPS and figuring how much I need....
- From: "BashfulBob" <BashfulBob@xxxxxxxxxxxx>
- To: pctechtalk@xxxxxxxxxxxxx
- Date: Wed, 8 Jan 2003 16:58:09 -0600
HUH :-)
Life is what happens in between plans.
Virus free email by Norton's
----- Original Message -----
From: "ronslanding" <ronslanding@xxxxxxxxxx>
To: <pctechtalk@xxxxxxxxxxxxx>
Sent: Wednesday, January 08, 2003 2:57 PM
Subject: -=PCTechTalk=- Re: Question about UPS and figuring how much I
need....
>
> Hi Billy!
>
> Don't know the origin of this error but you must have a 12-3 line/cord in
o=
> rder for computer equipment, etc to be properly grounded - postive,
negativ=
> e and ground. And, in lot of areas house wiring is only 14-2 or 14-3.
Thi=
> s means buying the 12-3 would not be much advantage because the house wire
=
> would and should have a 15 amp limit (unless its on the glass fuse and
some=
> dummy ups it to a 20 amp fuse which could cause a fire if shorts out).
IF=
> you had to run an extension cord for say 20, 25 or 50 feet you might want
=
> to use 12-3 wire cord to cut down loss due to electrical resistance
encount=
> ered in a long extension cord (with a 15 amp fuse). Although most modern
e=
> quipment has individual fuse protection you might not want the extension
bu=
> s fuse to be above 15 amps depending on what equipment you are going
connec=
> t to that line. Another thing to consider-if the house line you connect
to=
> is 15 amps and the extension cord fuse is at 20 amps the house line fuse
m=
> ay blow first knocking out power to the entire house line including the
ext=
> ension cord bus. This may not be desirable in most situations! If the
hou=
> se wire is 12-3 with a 20 amp fuse or circuit-breaker a 12-3 wire
extension=
> cord bus with a 20 amp fuse might be OK but there is still a chance that
t=
> he house circuit-breaker could blow first (although the extension bus fuse
=
> should be fast acting, fast enough to blow first).
>
> hth
>
> ronslanding@xxxxxxxxxx
>
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