Re: Class D in EN61000-3-2

2000-10-19 Thread Keith Armstrong
- and it consumes over 1kW - in which case it has no limits to meet (yet) under 61000-3-2. Hope this clarifies the position. Keith Armstrong Partner, Cherry Clough Consultants, www.cherryclough.com Cherry Clough House, Rochdale Road, Denshaw, OL3 5UE, Great Britain phone: +44 (0)1457 871 605, fax: +44 (0)1457

Re: Weight Limits for Lifting

2000-10-18 Thread Keith Armstrong
You want the EU's Health and Safety directive on Manual Handling of Loads 90/269/EEC. I used to be able to get the full English text downloaded from http://europa.eu.int/eur-lex/en/lif/dat/1990/en_390L0269.html Keith Armstrong Partner, Cherry Clough Consultants, www.cherryclough.com Cherry

Re: PC Add-in boards and CE

2000-10-12 Thread Keith Armstrong
Try the EMCTLA's Technical Guidance Note No. 8, available at: http://www.emctla.org Keith Armstrong Partner, Cherry Clough Consultants, www.cherryclough.com Cherry Clough House, Rochdale Road, Denshaw, OL3 5UE, Great Britain phone: +44 (0)1457 871 605, fax: +44 (0)1457 820 145 E-mail

New Guide on EMC and Functional Safety

2000-10-08 Thread Keith Armstrong
on EMC and on Safety, it will be of relevance anywhere in the world where functional safety is an issue for electronic equipment or systems. Keith Armstrong Partner, Cherry Clough Consultants, www.cherryclough.com Cherry Clough House, Rochdale Road, Denshaw, OL3 5UE, Great Britain phone: +44 (0

Re: LISN for CISPR 22

1998-09-16 Thread Keith Armstrong
. This version of the standard was its fourth draft, and I don't know if it was ever published in a final form. Hope this helps All the best! EurIng Keith Armstrong Partner, Cherry Clough Consultants EMC-UK Associate Ing. Gert Gremmen wrote: Hello Muriel, Are you familiar with CISPR 16

Re: Agency approvals on components in CE

1998-09-12 Thread Keith Armstrong
for different markets. My 2 cents worth! EurIng Keith Armstrong Partner, Cherry Clough Consultants Member of EMC-UK Chairman of the IEE's Professional Group on EMC phone: +44 1457 871 605 fax:+44 1457 820 145 Email: karmstr...@iee.org POWELL, DOUG wrote: A little clarification by way

John Howard

1998-09-07 Thread Keith Armstrong
Dear Group I'm trying to get in touch with John Howard, who is an EMC Guru based in California. Does anyone have his email address? Thanks for any assistance! Keith Armstrong - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord

Product recall on EMC non-compliance

1998-07-29 Thread Keith Armstrong
as their electromagnetic environment is concerned. I hope that this helps answer your question, Bob. All the very best! EurIng Keith Armstrong Partner, Cherry Clough Consultants Member of EMC-UK phone: +44 1457 871 605 fax: +44 1457 820 145 Email: karmstr...@ieee.org

Re: FW: Conducted Emissions and Immunity Testing

1998-07-27 Thread Keith Armstrong
requirements, they have a different legal basis. Hope this helps! Keith Armstrong Partner, Cherry Clough Consultants Phone +44 (0)1457 871 605 Fax: +44 (0)1457 820 145 WOODS, RICHARD wrote: A couple of months ago, there was a discussion in this forum about how to test for EU conducted

Re: EN61000-3-2, EN55022 and EN55011

1998-07-16 Thread Keith Armstrong
and take the necessary steps, maybe limiting the sales or use of his product, maybe giving it EMC performance that goes beyond the obvious harmonised standards, IN ORDER TO MEET THE DIRECTIVE! I hope this helps the discussion along, by explaining the reasons behind Richard's approach. EurIng Keith

Re: Looking for Horror Stories

1998-07-15 Thread Keith Armstrong
Directive without further engineering work. I hope this helps! Best of luck! EurIng Keith Armstrong CEng MIEE MIEEE Partner, Cherry Clough Consultants phone: +44 01457 871 605 fax: +44 1457 820 145 Email: karmstr...@iee.org Knighten, Jim wrote: To All: My management is drafting

Re: Odd immunity problems.

1998-07-08 Thread Keith Armstrong
Maybe you should tell the manufacturers, they can sell it as a new feature! Best regards! Keith Armstrong Cherry Clough Consultants ed.pr...@cubic.com wrote: H, could this be a universal EMC truth? --- On Tue, 7 Jul 1998 01:52:56 -0400 Chris Dupres chris_dup...@compuserve.com wrote

Re: Odd Immunity Problems

1998-07-08 Thread Keith Armstrong
, but when is it OK to use them? Best regards Keith Armstrong Partner, Cherry Clough Consultants phone: +44 (0)1457 871 605 Fax: +44 (0) 1457 820 145 Email: karmstr...@iee.org Scott Douglas wrote: Since you brought it up, I am reminded of a time in my youth before the Hey Good Buddy... craze hit

Re: Odd immunity problems.

1998-07-07 Thread Keith Armstrong
Thanks Chris! I love the gas flame one! (pity its not EMC) Expect to see these in print one day. Keith Chris Dupres wrote: Hi Keith. As we wander round this world of Electro-fizz, pop and 2dB-over-limit, we come across all sorts of strange EMC behaviour, some directly witnessed, some

Re: CE versus FCC

1998-07-06 Thread Keith Armstrong
using their power-shower, his computer would turn the shower off. If you find the time to write some more downI'd be pleased to have them. Can I use your name if I write about your examples? Best regards Keith Armstrong lfresea...@aol.com wrote: Keith, with over 18 years in EMC I could go

Re: CE versus FCC

1998-07-05 Thread Keith Armstrong
far, refer to the EMC Journal's Banana Skins section, that they began in their February 98 issue (www.emc-journal.co.uk). Thanks in advance for all information, references, and anecdotes! Keith Armstrong Partner, Cherry Clough Consultants Cherry Clough House Rochdale Road, Denshaw, OL3 5UE, UK

Re: Video and computers in racks

1998-06-26 Thread Keith Armstrong
Dear Ray Answering your points in turn rkes...@monitoringtech.com wrote: In 359137eb.7...@iee.org, on 06/24/98 at 10:31 AM, Keith Armstrong karmstr...@iee.org said: Sorry I wasn't more clear. Yes, we do intend on being a supplier to a larger company that will ultimately sell

Re: EMC in motors and drives

1998-06-23 Thread Keith Armstrong
the very best! Keith Armstrong Partner, Cherry Clough Consultants Liew, Shih Perng wrote: Hi All, I have some different machines in one production line sharing a same power source, namely IX testers, ovens etc. I encountered a problem where some of the ovens tripped-off

Re: Modelling

1998-06-23 Thread Keith Armstrong
the very best! Keith Armstrong Partner, Cherry Clough Consultants Chong Chien Jin wrote: Thanks Keith... One more question: What about modelling of EMC in machines and instrumentation? Do you know any modelling concerning EMC? C.J.CHONG ee39...@eng.usm.my

EMC in motors and drives

1998-06-19 Thread Keith Armstrong
may help, although I don't think any of them deal solely with motors and their drives. Tim Williams' book EMC for Product Designers is a good introduction for the circuit designer, including designers of motor drives. I hope this all helps! Keith Armstrong Partner, Cherry Clough Consultants