Eric,
You are right and this muddy point hopefully will be cleared.
CISPR SC B Interference from Industrial, Scientific and Medical
Radio Frequency Apparatus is preparing Annex to CISPR 11
which will allow testing class A equipment at 10 meters and
class B at 3 meters with 20*Log(D/d) limit relax
Shall I muddy the issue further...let me address an interesting
section of EN 55011:1991.
But first; for reference; Clause 5 of EN 55011 lists the limits and
measuring distance for Class B at 10 meters, Class A at 30 meters.
Section 8.1.3 entitled Radiation Measurements (9
Has anyone had experience in testing insulating material to the ISO 306
method A ("Thermoplastic materials - Determination of Vicat softening
temperature") referenced in Section 10.3 of BS EN 61010-1:1993? Can anyone
fill me in on what this test actually involves?
Regards,
Peter Poulos
===
I would just like to point out that the CISPR22 reference which has been
quoted ie "only class B equipment may be assessed at 3m etc" is
actually a note in the specification and therefore is for "guidance only"
and has no "legal status" ?
Regards Andy Griffin
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