In message 
<2AA8A4298DECF8469C66C8F3A2B95892E6C725@GB02QEX01PEDV27.rmhost1.local>, 
dated Wed, 1 Apr 2009, "Gordon,Ian" <ian.gor...@edwardsvacuum.com> 
writes:

>I agree - or to put it another way "Upon what basis did the relevant 
>IEC committee arrive at this value?"

'Conductor 10 cm above a ground plane forms a 150 ohm transmission 
line.' It's EMC dogma. (;-)
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
Things can always get better. But that's not the only option.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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