EPSMA (European Power Supply Manufacturers Association)

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

EU TTE Safety Standards

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'

Harmonic current measurement and input power

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

Job Announcements

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

LISN, Surge and Burst

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.

Telephone approval for EU?

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-

Re: Prod. Safety requirements

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

re Patrick Lawler and linear load in parallel with switcher

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

Re: Job ads OK?

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

RE: LISN, Surge and Burst

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:

Re[2]: Harmonic current measurement and input power

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

Re: Harmonic current measurement and input power

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

Re: Harmonic current measurement and input power

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?