Sandy, I believe that the performance criteria applies for all voltages
on
all of the immunity testing. When I used to work at KTL Dallas (the old
ICC), that is how we applied the criteria. I have not seen anything in the
generic immunity standards to indicate otherwise. The generic performance
criteria is what we would use if the client did not tell us a specific
perf. criteria to use. I had clients who wanted better performance that
required and then others who said, "If it does not permantly damage the
machine then anythig else was fine". I developed the point of view that if
a EUT has a low threshold to any immunity standard then I was less likely
to purchase anything from that company. I am in Amatuer Radio so
everything in the ham shack needs to be up to snuff.
Guy Story
Compliance Technician
Interphase Corporation
phone: 214.654.5161
fax: 214.654.5406
gst...@iphase.com
-----Original Message-----
From: Sandy Mazzola [SMTP:mazzo...@symbol.com]
Sent: Thursday, November 11, 1999 12:18 PM
To: emc-p...@majordomo.ieee.org
Subject: EN 55024 and Performance Criteria Applicability
To All,
With specifics to EN 55024 Information Technology Equipment-Immunity
Characteristics-Limits and Measurements and the EN 61000-4-2 ESD
requirement. ESD requirement of +/-8 Kv Air Search and +/- 4 KV
Contact/Indirect is usually tested gradually for example +/- 2KV, +/- 4 KV
and +/- 8KV. EN 55024 calls out for performance Criteria B. The
question is:
Is the performance criteria the same for all voltages tested ? For
example is it also performance criteria B for the voltages below the
maximumm requirement or does it roll up to performnce criteria A for less
then max requirement.
I hope I have phrased the question correctly.
Thanks in advamnce for any responses.
Sandy Mazzola
Sandy Mazzola
Regulatory Engineering
Symbol Technologies Inc.
Phone: (516) 738-5373
Fax (516) 738-3318
E-mail: mazzo...@symbol.com
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