I had to laugh when I saw the comparison between
EMC and dentistry...How appropriate..!!
From: John Woodgate <j...@jmwa.demon.co.uk>
Reply-To: John Woodgate <j...@jmwa.demon.co.uk>
To: emc-p...@majordomo.ieee.org
Subject: Re: EN 50141 and EN 61000-4-6
Date: Mon, 14 Jan 2002 14:32:29 +0000
I read in !emc-pstc that CE-test - Ing. Gert Gremmen - ce-marking and
more... <cet...@cetest.nl> wrote (in <ABEJKCKDFONELAIPOFHNOEILEMAA.cetes
t...@cetest.nl>) about 'EN 50141 and EN 61000-4-6', on Mon, 14 Jan 2002:
>If I would not advocate testing I would be a
>bad entrepreneur/ If I would recommend clearly
>unnecessary testing I would loose customers.
I was *extremely* careful not to suggest otherwise. My concern is that,
in some cases, the customers don't have enough knowledge to determine
what is even 'clearly' unnecessary.'
>
>The same is true for dentists curing your dents.
Pardon? (;-)
>Did YOU actually check every hole in your teeth
>really existed ?
Yes, as it happens.
> Or did you never go to the
>dentist because no authority demands it. ;<))
Also yes. I am lucky to have extraordinarily resistant enamel on my
teeth, and have to visit the dentist only at intervals of many years, in
spite of being encouraged by them to do so every six months.
>
>It is the difference between good and bad test houses
>to help selecting test suites for unknowing customers
>(!??!) that other otherwise choose for
>short time gains and long time losses.
Again, I was careful to say that as well.
>
>And, as you should know, testing costs are important
>for very small companies only.
I don't agree, not because you are necessarily wrong but because many
larger companies themselves don't agree. Yes, my interests lie mostly
with SMEs, but I have advised very large companies and they are by no
means complacent about testing costs.
>Costs for EMC serial production
>etc. are neglect able if designed in, from the start.
This is true for *large volume products*, like TV sets. But it is not
applicable to a large company that makes, for example, a very wide range
of professional-use products, each of which is made in quantities not
exceeding 1000 or so.
>The gain from compliant equipment in terms of quality,
>product life time and need for service can easily
>be much higher then all testing suites I can imagine.
I don't see how EMC conformity affects 'quality', life time and need for
service.
>
>And there is much more to test than only EMC !
Of curse, safety has to be included, and safety conformity MAY affect
'quality' and 'need for service'. Product life-time is mostly determined
by market forces (fashion and/or new versions of Windows) rather than
technical end-of-life.
--
Regards, John Woodgate, OOO - Own Opinions Only.
http://www.jmwa.demon.co.uk
After swimming across the Hellespont, I felt like a Hero.
-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Michael Garretson: pstc_ad...@garretson.org
Dave Heald davehe...@mediaone.net
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
All emc-pstc postings are archived and searchable on the web at:
No longer online until our new server is brought online and the old
messages are imported into the new server.
_________________________________________________________________
Send and receive Hotmail on your mobile device: http://mobile.msn.com
-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Michael Garretson: pstc_ad...@garretson.org
Dave Heald davehe...@mediaone.net
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
All emc-pstc postings are archived and searchable on the web at:
No longer online until our new server is brought online and the old messages
are imported into the new server.
