In message <970124084114_555063.0_ehf5...@compuserve.com> to EMC-PSTC
Horst Haug wrote:
> There exists a nice guidance from EPSAM (European Power Supply
> Manufacturer Association) about Harmonics requirements. (sorry, it's
> only in German language so far):
>
> EN60601 does not include harmo
Good Day All:
I am trying to determine the appropriate safety standards to use for a
piece of Test and Measuring Equipment which is intended to be connected as
terminal equipment to the public telephone network.
In particular I would like to know: What standards have been published in
the EU'
I have a system that consists of a line-connected 120W switching power
supply in parallel with a line-connected 450W resistive heater.
The switching supply is not 'harmonic corrected', and does does meet the
requirements of IEC1000-3-2. The load on the power supply is constant.
The resistive loa
AST Computer, Inc. in Irvine, CA currently has openings for a Sr. EMC
Engineer and an EMC Technician. Anyone interested should send a resume
or contact me for more information.
John Nelson
AST Computer, Inc.
16215 Alton Parkway
Irvine, CA 92618
I am trying to find a reliable calibrator for the equipment mentioned in the
subject header. Can anyone recommend a few companies? Your help is
appreciated.
Sincerely,
Frank Goto
A-pex International Co., Inc.
Hi everyone,
In order to export telephone to EU area, what kinds of regulation must be
needed?
Also, which agency I am supposed to contact.
Your kind information would be highly appreciated.
thanks in advance.
regards,
Ryan Kim / President of Hai-Tong EMC
Tel : 82-339-72-4117
Fax : 82-339-
Hello San,
to get the most official response I sugget you call the Israeli
Institute for Standards:
Ala or Bernadet
972-3-6465045/6/7
good luck
moshe valdman - Mesa Computers Consulting Services
PS
sorry I and probably others of
In my personal experience looking at just the 3d harmonic is going to get you
in trouble. Please take the time to look all the way out to the 39th and
be prepared for some unpleasent news. You might be able to create an
arguement that the current wave shape falls out of the 'special D' with
suffi
I agree with Mike.
GMS
I think job ads belong here, it's one of the things we want to share.
But they should be VERY short (one screen max) and have a clear subject
line, including state or region, to avoid wasting time and bandwidth.
Personal opinion only, of course.
--
From: M
Frank,
Michael Howard provides good calibration service, traceable to NIST,
with very competitive prices and 3-5 days turnaround time at:
Liberty Labs, Inc.
1346 Yellowwood Rd.
P.O. Box 230
Kimballton, IA 51543
Tel: (712) 773-2199, Fax: (712) 773-2299
Email: mhow...@netins.net
Homepage:
Text item:
In a round about way the harmonic requirement does serve the consumer. It all
boils down to having an efficient power distribution system. With so many
non-linear loads the power companies efficiency drops significantly, therefore
to maintain service to all our households (to wat
Hi Pat:
Your message said that you have a switching-mode power supply
in parallel with a resistive load. The resistive load has a
5-minute on and off cycle.
When the resistive load is on, the product complies with the
harmonic current limit requirements. When the resistive load
is off, the
Hi Rich.
You dropped a p.s. which caught my cynical eye...
>
> ps: My personal opinion is that the mains is to serve us,
> the consumer. We don't have to correct for linear
> non-unity power factor loads, why do we have to correct
> for non-linear non-unity power factor loads?
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