One would normally expect immunity to be covered in a product-family
performance standard applying to the whole family, which would be a TC59
publication in this case. But such a standard does not exist; however
there is a product-family safety standard applying to the whole family,
which is IEC 60335-1. So it is perhaps not unreasonable to put immunity
requirements into that publication if they are not in CISPR 14-2. But if
they are not in CISPR 14-2, why aren't they?
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2018-03-20 09:27, James Pawson (U3C) wrote:
Hello experts,
I note that EN 60335-1 (household and similar appliances) specifically
calls up EMC immunity tests in clause 19.11.4 where the controls for
the EUT are set in the “off position” and a set of immunity tests are
applied. For something that controls a heating element, I can see why
this would be a concern.
A couple of questions / thoughts:
* It sounds like this at least doubles the amount of immunity
testing required – one with the EUT “on” and one with it “off”.
Would that be how you read this?
* Are there any other safety standards that explicitly call up EMC
tests within them like this one does? This is the first one I’ve
come across where this is the case but I’m not very familiar with
safety standards in general.
Thanks and all the best,
James
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