These voltages, and more, all exist today. It depends on the system to which
you are connected.
The 110 is from a 220 split phase feed. Often this is from of a secondary of a
delta connected transformer. Normally 120v is derived from a 208v three phase
wye system. It is from one of the phase
After all this discussion,
Does anyone know the Mains Voltage in the US.
It was once 110 VAC and then 115 VAC.
I heard that now it may be 120 VAC
Any info would be helpful
-Original Message-
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate
Sent: Wednesday, Marc
Marketing people will always do that. " . . .so and so, say then can
operate over 90 - 265V, so we need to do 85-270" and so on. What they
don't remember or perhaps don't understand is that it is one thing to say
we can operate over that range, but another thing to meet all specs
(ambient tem
In message , dated Wed,
21 Mar 2012, Brian Oconnell writes:
I see minimal politics in EMC or safety standards - so they are a
technical standard.
You should be there! In EMC, PLT is pure politics, but there are more
subtle examples.
In fact, 'politics versus engineering' is the wrong way
The PSES is in trouble - the space aliens have found us and have sent a
member of the ESO (an obvious front for the Galactic Imperial envoy) to
maintain control.
My employer has traditionally vended stuff subject to short-term decision
making and immediate responses to customer changes. Having rec
In message
<4ca283837b67ec48b4943536cfe7c14805327...@hqmbx2.ads.eso.org>, dated
Wed, 21 Mar 2012, Canio Dichirico writes:
C.6) Honestly I ignore whether IEC and/or CENELEC are actually pursuing
what stated in the above-mentioned note of IEC 38, i.e., "after this
the reduction of this range [
By "under-excitement" and "over-excitement", do you mean lagging and
leading power factors?
___
Ralph McDiarmid | Schneider Electric | Solar Business | CANADA |
Regulatory Compliance Engineering
From:
Dear All,
Some comments of mine embedded in the message below.
Kind regards
Canio Dichirico
> -Original Message-
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John
> Cotman
> Sent: 21 March 2012 10.50
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Su
Our company tries to sell to a global market which can be very challenging when
it comes to AC Mains voltage. In the US, we refer to our voltage as "110/220"
for the split phase power we have in our homes, but in most industrial
facilities there is a wide variety of power sources and the voltage
Hi,
I'm looking for a lab that can do the testing to the new KCC RJ connector
requirements and give me a report I can use to self-declare with. Requirements
are similar to TIA-1096-A. Anyone know of a lab that can do this in the USA?
It's apparently still pretty hard to find RJ connectors tha
Your contribution must be part of the misinformation then ;<))
> 3. Mainland Europe mains is also nominally 230V, but it happens to be on the
> low side, and is the same 220V it always has been.
In our region Rotterdam, I personally have not seen
the AC mains voltage below 228 Vac in years, of
c
There is a lot of misinformation (generally, I mean, not on this forum)
about this topic.
1. The common 230V is a legal fiction to allow free movement of goods
within the CE marking area. It's a political voltage, not an engineering
one.
2. UK mains is therefore nominally 230V, but it happens
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