Thank you very much, John.
One more question:
What is the role of CISPR 16 series to CISPR family standards, such as CISPR
15? For example, I though disturbance voltage measurement mentioned in CISPR
15 should follow CISPR 16-2-1. From what I have learned from you, it seems
CISPR 16 series are independent to other CISPR standards. Am I right?
Figure 6 and Figure 7 of CISPR 16-2-1 clearly specify vertical and horizontal
reference planes.
On 1/26/09, John Woodgate <[email protected]> wrote:
In message <[email protected]
<mailto:zjykyqhtlfejfw%[email protected]> >, dated Fri, 23 Jan 2009, John
Woodgate <[email protected]> writes:
Based on these, my colleague insists groundplanes are
not required when
perform measurement on relay switches and dimmers. Do you agree with the
argument?
Well, 8.1.3 and Figure 5 apply, and I can't see any reference
to a ground
plane. So your colleague APPEARS to be right. But I suspect that there is a
problem with the standard, because the AMN is always used with a ground plane.
I have *unofficial* agreement that the current CISPR 15 does not call
for a
ground plane in 8.1.3. However, this does seem to my colleagues to be an
error, and the standard may have to be amended.
--
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk
<http://www.jmwa.demon.co.uk/> and www.isce.org.uk <http://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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