Chris,
As I understand it, there is no standards requirement on how or were or
if a "OK hi-pot" mark is required. An initial factory inspection for
a ITE product (UL, CSA, TUV,...) will usually require that the hi-pot
process in place ensures no "walk-arounds", but does not require marking.
Typically, we require the hi-pot operator to scan the bar code on or near
the power rating label, which identifies the S/N of the unit. This is
fed to computers which maintain a database of scanned (and presumably
hi-potted) units. For your own quality purposes, a label, indelible
mark, etc. are all acceptable, but not required, means of tracking this.
As to agency marks, it was once common for each to sell rolls of marks
not unlike the way some postage stamps are done. However, most mfrs
evolved to a single power rating label which incorpoates the marks in
the artwork at less cost than stickering separate agency marks. I had
thought that the individual stickers were still available, at a price,
from the main agencies.
George Alspaugh
"Chris Maxwell" <chris.maxwell%nettest....@interlock.lexmark.com> on 11/28/2001
04:16:37 PM
Please respond to "Chris Maxwell"
<chris.maxwell%nettest....@interlock.lexmark.com>
To: "EMC-PSTC Internet Forum"
<emc-pstc%majordomo.ieee....@interlock.lexmark.com>
cc: (bcc: George Alspaugh/Lex/Lexmark)
Subject: Hi-Pot "OK" labels
Hi all,
I previously asked about Hi-Pot testing and NRTL labeling.
Ok, so there is no such thing as a standard UL, CSA ... label that can
be purchased. Although the logos are available on the website, the
labels have to be "re-invented" for every company (yawn). Seems like a
waste of time to me.. but in these days of layoffs... I guess every
excuse for employment is OK.
How about the little "Hi-Pot OK" labels that I have seen? I would
assume that these are widely used.
Any sources for these? Or do we have to go to a print shop and pay a
tooling charge to make our own (what a waste)?
Chris Maxwell | Design Engineer - Optical Division
email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797
8024
NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 |
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