I asked the same question not too long ago on this venerable list...the
answer that came out of it was that it's NOT defined anywhere.
 No one would say 5V is high voltage, and no one would say 2000V isn't, but
where's the precise boundary? No standard. I suppose it warrants some study.

Timothy Reeves
QA Manager/Process Engineer
ECD Circuit Board Division
13626 S. Freeman Road
Mulino, OR 97042
(800) 228-8198    Fax (503) 829-5482

-----Original Message-----
From: Wanchai Charoendee [mailto:[log in to unmask]]
Sent: Tuesday, August 22, 2000 10:17 AM
Subject: Measling vs Definition of High Voltage


According to IPC-A-600A rev. F "Measling is acceptable for class 1,2,3
except high voltage application".  May I learn the definition of 'high
voltage  ?  Thank.
Rgds,

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