All:
I work for a test lab located approximately one mile above sea-level, and
perform product safety testing on IT and telecommunications equipment (IEC 60950
and clones). I recently tested a telecom interface PWB that failed 6.4 HV
testing (case c, 1.0kv). The PWB failed at approximately 900 volts. The PWB
passed a re-test performed at an altitude correction factor (0.816). I know that
clause 5.3 allows for altitude correction, but the standards dont mention any
correction factors with regard to clause 6.4.
Have any of you good people used altitude correction for clause 6.4 testing on
international products?
Any comments from you agency types? (yeah, you're good people too)
Thanks.
John Boucher
Lucent Technologies
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