alt.engineering.electrical Google Group

Re: GFCI circuit for 110v 20 amp hot tub question

gfretw...@aol.com — Thu, 20 Nov 2008 06:58:11 UT

On Wed, 19 Nov 2008 22:30:47 -0800 (PST), fzbuilder
You can just install a 20a GFCI receptacle in that box.

Re: Federal Pacific Panels

roy...@webtv.net (Roy) — Thu, 20 Nov 2008 06:46:37 UT

Go lick a bussbar Fats, even if your opinion weren't so worthless your
words are only full of falsehood and contempt.
Have a modicum of decency and shut up.
Roy Q.T.
[have tools, will travel]

GFCI circuit for 110v 20 amp hot tub question

travis.kai...@gmail.com (fzbuilder) — Thu, 20 Nov 2008 06:30:47 UT

Hello, I just picked up a used Hot Springs spa that is 110v 20amp. It
has had the original GFCI plug cut off and replaced with a standard
plug. I am setting the spa up in my garage and plan to share the
receptical for my washing machine that is on a 20amp breaker. (Won't
be running them at the same time). I am wondering if I can use a GCFI

Re: Electrical Problems

b...@somewhere (Ben Miller) — Thu, 20 Nov 2008 04:20:18 UT

Your problem is a potential fire hazard, and needs to be immediately
corrected. There are many possible causes, mostly involving a loose
connection somewhere. Nobody can tell you for sure where the problem is
without being there. As others suggested, your best bet is to hire an
electrician to troubleshoot the system.

Re: inductance equation for three phase chokes

d...@shaw.ca (Don Kelly) — Thu, 20 Nov 2008 04:04:57 UT

----------------------------
Many thanks Mr kelly.You really knows what you are talking about.I had
a hunch that i would be cancelled out as you rightly pointed out,Could
you please point to me some website where i can see the mathematical
proof for that and also to have a concrete understanding how exactly

Re: Federal Pacific Panels

fatbytest...@somewheronyourharddrive.org (FatBytestard) — Thu, 20 Nov 2008 01:18:38 UT

My God! Did you suddenly wake up from your coma?
I cannot believe this is the same person as the abusive Roy.
It actually appears as if you have some modicum of intelligence.

Re: POWER FACTOR

b...@somewhere (Ben Miller) — Wed, 19 Nov 2008 23:02:05 UT

Transformers are rated in VA because that determines the maximum current
through the winding. The load watts don't matter to the transformer. In
other words, a one kVA transformer could deliver one kVA to a one kVAR
capacitor that draws zero watts, or to a heater that draws one kW. It is
fully loaded either way.

Re: Relay Symbol ?

b...@somewhere (Ben Miller) — Wed, 19 Nov 2008 22:44:07 UT

It is a relay coil or a solenoid coil. Relay coils are generally circles,
but I have seen the solenoid symbol used as well.
Ben Miller

Re: Putting commercial quote in perspective

b...@somewhere (Ben Miller) — Wed, 19 Nov 2008 22:33:01 UT

It is probably a two-man job, so cut the elapsed time estimates in half.
200A and 400A three-phase feeders aren't like the wires in your house, and
we don't know what the environment is there. Straight runs, offsets, height
from the ground, etc?
I agree with the others, that rather than looking for reaction to one

Re: Power relay with control winding. -- Help

b...@somewhere (Ben Miller) — Wed, 19 Nov 2008 22:21:12 UT

Jim wrote:
I know what you are refering to, but I don't recall what they are called. As
an option you can use a 24VAC relay, run the line voltage through the
contacts, and power the coil from a 24V transformer through the low voltage
control lines. The total cost of the readily available materials should be

Re: Federal Pacific Panels

katamaso...@hotmail.com (Terry) — Wed, 19 Nov 2008 20:58:05 UT

=>Sure, the CB's install the same...
Thanks--that answers part 1.
=>My Advice: Never ask anyone here for advice on any pending work you
=>have...if you need to ask advice to do that job here you shouldn't
be =>doing the work yourself.
Roy, you're 100% correct. I completely agree. I am trying to look at

Wire terminal cap: square millimeters rating

q...@asdasdasd.net (qmu) — Wed, 19 Nov 2008 18:43:32 UT

Hi all,
wire terminal caps with one entry and one screw, for electrical wire
junction (whose English exact name I don't know), bear a rating of the
section of copper that can be fitted in it, printed on them.
It is only one number, such as e.g. 2.5 mm^2, 4mm^2 or 10 mm^2...
Is that the MAXIMUM or the MINIMUM amount of coper I can fit in?

Re: inductance equation for three phase chokes

roy...@webtv.net (Roy) — Wed, 19 Nov 2008 17:42:04 UT

Cancelled out, null, what's the difference?
Don, how could you be sure of what applies or not, when you don't even
know what equation I might have been talking about? The topic just
drifted a bit into possible design update science, thanks for getting it
back on track.

I'm really not that interested in the world before the service entry, as

Re: Federal Pacific Panels

roy...@webtv.net (Roy) — Wed, 19 Nov 2008 17:29:26 UT

Sure, the CB's install the same since FP standard applies, though
obsolete, it's only temporary :) But why bother with the Federal Pacific
panelwork at all, just run your wiring and prep your circuits while you
get your new distribution panel, Cutler Hammer, GE, Challenger, etc.,
they are not that expensive., why set yourself up to having to double

Federal Pacific Panels

katamaso...@hotmail.com (Terry) — Wed, 19 Nov 2008 16:29:09 UT

My question is not one of reliability or liability, but to ask whether
a 240V-50A stab lok breaker used in a 100A panel is the same as one
used in a 200A panel.
I have built a workshop in the back yard and plan to wire it as
follows:
New 50A breaker in existing 100A panel to disconnect box w/breaker