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"Doug Miller" <spambait@milmac.com> wrote in message
news:I054m.1906$cl4.1129@flpi150.ffdc.sbc.com...
In article <h2qf18$8mn$1@news.eternal-september.org>, "William
Sommerwerck" <grizzledgeezer@comcast.net> wrote:
1) 245VAC is *not* a problem in a nominal 240VAC supply.
That is correct until you factor in that the taps were set to 220v. If the
taps were set at 240, then 245v would never have been a problem.
On Sun, 05 Jul 2009 11:22:34 -0700, StickThatInYourPipeAndSmokeIt
Zarathustra@thusspoke.org> wrote:
On Sun, 05 Jul 2009 12:46:59 -0500, krw <krw@att.bizzzzzzzzzzz> wrote:
On Sun, 05 Jul 2009 10:33:28 -0700, StickThatInYourPipeAndSmokeIt
Zarathustra@thusspoke.org> wrote:
On Sun, 05 Jul 2009 17:08:59 GMT, spambait@milmac.com (Doug Miller)
wrote:
In article <Wg44m.10923$8P7.9233@newsfe21.iad>, "Rich." <rcres@XXcomcast.net> wrote:
It is not regular practice to inform the owner, unless something is found to
be wrong. Having 245v in the building is not normal, and there is a lot of
equipment out there that does not have taps. Equipment without taps could be
damaged by this higher than usual voltage.
Nonsense. 245V = 240V + 2%. That's just not a big deal -- as long as it's a
nominal 240V supply. If the nominal supply is 208V, then yes, that's a huge
problem. But you have no idea what the supply in the building is supposed to
be, so you have no basis for saying that it's "not normal".
It is the responsibility of the electrician to make sure the equipment he is
wiring can correctly run on the power being supplied.
No, it's not, unless there's a contract specifically requiring him to do so.
The electrician's responsibility is to install the circuits specified by the
person who hired him. The one who owns the equipment is responsible for
preparing the specs.
IMO the electrician
did not do his job correctly.
In what way?
220 to 245 is an 11.4% difference.
220V service doesn't exist, DimBulb.
Read the post,idiot. If there are no 220 volt service provisions, why
are there "220 volt taps" on equipment?
Irrelevant to the real world, DimBulb. 220V is so 1950s.
AND if there IS such a tap, then the electrician feeding it MUST
examine what tap is being fed. PERIOD.
Different issue, AlwaysWrong.
Im not. Nor am I licensed. Yet I do the electrical work for manyOn Sun, 05 Jul 2009 08:34:43 GMT, nico@puntnl.niks (Nico Coesel) wrote:
Nonsense. If you hire a 'pro' chances are they make even more
mistakes. In this case the owner is to blame. He should have hired
someone from the company that sells the CNC machines to connect them
properly to the mains.
If a proper electrician does not know how to hook up a machine, he is
not a proper electrician.
Pro work is usually insured.
That makes you wrong on both counts.
On Sun, 05 Jul 2009 12:28:50 GMT, nico@puntnl.niks (Nico Coesel) wrote:
A CNC machine is something different than a light bulb. Few
electricians know more than how to connect a light bulb and outlets.
Besides, the story doesn't tell whether the machine has a permanent
mains connection or is connected by a cord.
I know of zero CNC machines that operate from a line cord.
It is not regular practice to inform the owner, unless something is found to
be wrong. Having 245v in the building is not normal
actually...from a Real World point of view..Greg makes a lot of sense.On Sun, 5 Jul 2009 11:27:07 -0500, "Greg O" <goo1959@hotmail.com> wrote:
Maybe, maybe not. My thoughts are the equipment was correctly wired, but not
set up properly.
I cannot believe the remarks made by some in Usenet.
Contradict yourself within a single sentence often, idiot?
These service voltages are relics from the 50's/early sixties, not normal.On Sun, 5 Jul 2009 12:11:31 -0400, "Rich." <rcres@XXcomcast.net> wrote:
It is not regular practice to inform the owner, unless something is found
to
be wrong. Having 245v in the building is not normal
Its VERY normal in California..at least in the LA area.
Irrelevant to the real world, DimBulb. 220V is so 1950s.
No. It is precisely the issue in this case, you idiot.AND if there IS such a tap, then the electrician feeding it MUST
examine what tap is being fed. PERIOD.
Different issue, AlwaysWrong.
This to me is starting to get tedious.
The standard USENET rule applies:
THEN DON'T RESPOND.
Manufacturer of the controller should be replacing it under warranty.
Then WHY are machine designers and manufacturers STILL placing the tapsThen blame the idiot who configured it for 220, which hasn't been the
specification in decades. It wasn't you, was it?
Has anyone ever seen a 1950s CNC machine?
You fucking retards!
Technically it should be 120/240, I think the examiner wasnt awfullyOn Jul 5, 2:50 pm, StickThatInYourPipeAndSmokeIt
Zarathus...@thusspoke.org> wrote:
On Sun, 5 Jul 2009 11:31:43 -0700 (PDT), rangerssuck
rangerss...@gmail.com> wrote:
Just to muddy it up even further, we recently put a medical device
through CE approval and were advised by the examiner that our label
should read "110/240", and that's the label we passed with.
CE? I am surprised that they did not want it to read "95 - 265 VAC"
That is what most CE equipment works at.
It makes a product that barely works in Japan's 90V realm, and then
only on some products.
I had to do a redesign to insure that a production printer
(supply)would
be marketable/functional in Japanese geographical/voltage markets.
Note: That was a slash, not a dash. This was not a "universal input",
it was a dual-voltage device, with a 2:1 switchable primary. I was
surprised that they didn't want 110/220 or 120/240 or 115/230. Nope,
they insisted on 110/240. Go figure.
Would your only solution for that particular machine then be simplyOn Sun, 05 Jul 2009 16:53:25 GMT, spambait@milmac.com (Doug Miller)
wrote:
You're missing the point. This has nothing to do with the voltage supplied
by the utility. The utility doesn't supply 220V or 240V or whatever. They
supply (for example) 4KV. A transformer at the point of service reduces that
to 220V, or 240V, or whatever. Different transformers connected to the *same*
4KV primary voltage could easily produce different secondary voltages.
Indeed it does.
My single phase home 220 volt service runs between 245-252 volts
Pacific Greed and Extortion claims that is nominal and within spec for
home wiring.
Fortunately..most of my gear runs fine on this, with the exception of
the VFD on my Gorton mill. At times, it shows an over voltage alarm and
refuses to run until the voltage drops back down to under 246.
Ive called this to the attention of the local PG&E wanks..and they
simply shrug, send someone out to measure the voltage, confirm that
indeed its 252, blither a bit and then leave.
gunner
"Lenin called them "useful idiots," those people living in
liberal democracies who by giving moral and material support
to a totalitarian ideology in effect were braiding the rope that
would hang them. Why people who enjoyed freedom and prosperity worked
passionately to destroy both is a fascinating question, one still with us
today. Now the useful idiots can be found in the chorus of appeasement,
reflexive anti-Americanism, and sentimental idealism trying to inhibit
the necessary responses to another freedom-hating ideology, radical Islam"
Bruce C. Thornton, a professor of Classics at American University of Cal State Fresno
Pro work is usually insured.
Im not. Nor am I licensed. Yet I do the electrical work for many
clients. And my business cards indicate that Im neither.
You're an idiot that performs unlicensed works, and thinks it is OK toOn Sun, 05 Jul 2009 10:39:41 -0700, StickThatInYourPipeAndSmokeIt
Zarathustra@thusspoke.org> wrote:
On Sun, 5 Jul 2009 11:27:07 -0500, "Greg O" <goo1959@hotmail.com> wrote:
Maybe, maybe not. My thoughts are the equipment was correctly wired, but not
set up properly.
I cannot believe the remarks made by some in Usenet.
Contradict yourself within a single sentence often, idiot?
actually...from a Real World point of view..Greg makes a lot of sense.
You have a medical device that uses a linear front end?On Jul 5, 2:50 pm, StickThatInYourPipeAndSmokeIt
Zarathus...@thusspoke.org> wrote:
On Sun, 5 Jul 2009 11:31:43 -0700 (PDT), rangerssuck
rangerss...@gmail.com> wrote:
Just to muddy it up even further, we recently put a medical device
through CE approval and were advised by the examiner that our label
should read "110/240", and that's the label we passed with.
CE? I am surprised that they did not want it to read "95 - 265 VAC"
That is what most CE equipment works at.
It makes a product that barely works in Japan's 90V realm, and then
only on some products.
I had to do a redesign to insure that a production printer (supply)would
be marketable/functional in Japanese geographical/voltage markets.
Note: That was a slash, not a dash. This was not a "universal input",
it was a dual-voltage device, with a 2:1 switchable primary. I was
surprised that they didn't want 110/220 or 120/240 or 115/230. Nope,
they insisted on 110/240. Go figure.
On Sun, 05 Jul 2009 13:37:22 -0700, Gunner Asch
gunner@NOSPAMlightspeed.net> wrote:
On Sun, 05 Jul 2009 16:53:25 GMT, spambait@milmac.com (Doug Miller)
wrote:
You're missing the point. This has nothing to do with the voltage supplied
by the utility. The utility doesn't supply 220V or 240V or whatever. They
supply (for example) 4KV. A transformer at the point of service reduces that
to 220V, or 240V, or whatever. Different transformers connected to the *same*
4KV primary voltage could easily produce different secondary voltages.
Indeed it does.
My single phase home 220 volt service runs between 245-252 volts
Pacific Greed and Extortion claims that is nominal and within spec for
home wiring.
Fortunately..most of my gear runs fine on this, with the exception of
the VFD on my Gorton mill. At times, it shows an over voltage alarm and
refuses to run until the voltage drops back down to under 246.
Ive called this to the attention of the local PG&E wanks..and they
simply shrug, send someone out to measure the voltage, confirm that
indeed its 252, blither a bit and then leave.
gunner
"Lenin called them "useful idiots," those people living in
liberal democracies who by giving moral and material support
to a totalitarian ideology in effect were braiding the rope that
would hang them. Why people who enjoyed freedom and prosperity worked
passionately to destroy both is a fascinating question, one still with us
today. Now the useful idiots can be found in the chorus of appeasement,
reflexive anti-Americanism, and sentimental idealism trying to inhibit
the necessary responses to another freedom-hating ideology, radical Islam"
Bruce C. Thornton, a professor of Classics at American University of Cal State Fresno
Would your only solution for that particular machine then be simply
getting an isolation transformer that allows a voltage reduction?
Oh of course it does. And passed every time for the past 12 yrs.On Sun, 05 Jul 2009 13:41:29 -0700, Gunner Asch
gunner@NOSPAMlightspeed.net> wrote:
Pro work is usually insured.
Im not. Nor am I licensed. Yet I do the electrical work for many
clients. And my business cards indicate that Im neither.
Does your work get inspected? (no, I do not mean by you, idiot)
Nor have I ever made that claim.You may be a professional something, but 'professional electrician'
will not be the title.