The manufacturer cannot know that the device will be permanently
connected to a UPS unless the device and UPS are sold together as a
'system'. Only in that case might an exemption be justified, but it
would have to be justified and documented in the EMC Assessment of the
system.
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2018-07-24 13:35, Amund Westin wrote:
If a device is permanent connected to an uninterruptible power
supply(UPS) via its AC input port, can the Voltage dips and
interruption test be omitted? It could sound like a possibility, but
maybe it depends on the UPS performance.
Any experiences?
I can not find any exemptions in the test standards (EN 301 489
series, generic EN61000-6-X))
Best regards
Amund //
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