sci.electronics.design Google Group

Re: Liability & responsibility of electrician?

2009-07-06T22:54:52Z

A few thoughts. Wiring inside an industrial facility gets pretty sketchy at times. Using
Michigan for an example, there is nothing saying plant personnel can not run circuits.
I've worked for two firms that were big enough to be concerned about this and could not
find anything stopping us from running power inside the plant ourselves. (Gunners Temp

Re: An unusual Oscilloscope phenomenon

2009-07-06T22:51:00Z

Which "welding" environments did you have in mind?

Re: Liability & responsibility of electrician?

2009-07-06T22:42:30Z

Paul, I take my hat off to you sir...
I knew some one here would finally get it right! :)

Re: Liability & responsibility of electrician?

2009-07-06T23:37:15Z

Well then, the people you know aren't really electricians.
There's a lot more to the trade than stapling some Romex into a
residence.

Re: Liability & responsibility of electrician?

2009-07-06T23:32:21Z

[snip]
So far, no problem.
A nominal 240V service can vary +/- 5% and be within power quality
specifications. Equipment (nameplate) ratings are normally lower to
acount for voltage drop. A 120V service powers 110V appliances. A 240V
service powers 220V loads.

Re: Is it possible to oscillate a wave of this wavelength in a circuit ?

2009-07-06T22:34:36Z

I didn't bother to think about it after I saw I could pick my
own frequency when he specified a specific wave length.

Re: OT: Counterfeit Money

2009-07-06T22:08:02Z

Yabbut, isn't that primarily for good luck? ;-) I also do this;
some years ago a superstitious friend told me that if it's tails-up,
you're supposed to tap it three times and turn it over, then pick
it up.
Cheers!
Rich

Re: Liability & responsibility of electrician?

2009-07-06T22:05:17Z

"StickThatInYourPipeAndSmokeIt " <Zarathus...@thusspoke.org> wrote in
message news:2aa2551v6394cc8jlcf7v37aj2hdoed07p@4ax.com...
its probably classified as Professional Medical Electrical Equipment.
If its > 16A or >1KW ( 61000-3-2) then it is exempt from the Harmonic
tests.
So there is no need to put a PFC in there. But it looks like they are

Re: OT: Counterfeit Money

2009-07-06T22:02:06Z

When I was there (early 1970's), Okinawa was essentially owned by the
US - it was called a "protectorate". Dollars were the local currency.
I kinda had the impression that the strippers were more or less
free-lance.
Cheers!
Rich

Re: Liability & responsibility of electrician?

2009-07-06T22:09:26Z

Oh really ?
Lets see, if that was single phase it would be ~20 amps at 240. big deal.
3 phase, 20 / sqrt(3) = ~ 12 amps on the legs.
these are just off the top of my head still! Big deal!.
You're still in the dark.

Re: Liability & responsibility of electrician?

2009-07-06T21:56:22Z

Why don't the two of you get together. Gunner has had a month or two to recover from his
heart attack, Gunner's address is easily found if you have a basic knowledge of search
engines, hell he probably will give it to you.
Sunworshipper

Re: OT: Celebs die in threes

2009-07-06T21:51:38Z

Karl Malden,...
Thanks,
Rich

Re: OT : Could Australia Blow Apart the Great Global Warming Scare?

2009-07-06T21:45:41Z

Or reprocess it, but of course the paranoids will shriek, "But then the
terroirsts will make bombs", not realizing that that ship has sailed about
three of four decades ago.
Why doesn't somebody ask the French or Japanese operators what they do
with theirs? Or, for that matter, the US government? They've been running

Re: Is it possible to oscillate a wave of this wavelength in a circuit ?

2009-07-06T21:45:01Z

Depends on whether the thing you drive has a hood and a trunk or a
bonnet and a boot and if it rolls on tires or tyres.

Re: OT : Could Australia Blow Apart the Great Global Warming Scare?

2009-07-06T21:37:15Z

I wonder what mental disorder it is that makes warmingists also anti-
nuclear power? You'd think that, if they were sane, that'd be their
first choice!
Thanks,
Rich