Yes we hit this problem several years ago, hence my qualifier of
non-hydroscopic of which there are various options
-Original Message-
From: Linstrom, John (IndSys, GEFanuc, CDI)
[mailto:john.linst...@gefgreenville.ge.com]
Sent: Wednesday, September 01, 1999 3:20 PM
To: 'James, Chris'
Cc: 'emc-p...@ieee.org'
Subject: RE: hard anodized process to insulate metal chassis parts
Maybe a slip of the fingers... We recently got bit on the fishpaper
insulation. Fishpaper absorbs moisture; better to call it plastic, or mylar,
etc. than to leave a possible suggestion that fishpaper is any good for this
application.
John Linstrom
Computer Dynamics
PH 864.281.7768 x266
FX 864.675.0106
john.linst...@cdynamics.com
-Original Message-
From: James, Chris [ mailto:c...@dolby.co.uk mailto:c...@dolby.co.uk ]
Sent: Wednesday, September 01, 1999 3:16 AM
To:
Subject: RE: hard anodized process to insulate metal chassis parts
Given that sulphuric hard III anodizing is only .001 to .003 thick then I'd
have thought not. It is also fairly easy to compromise, so in a mechanical
assembly you would be hard pressed to know how good the insulator was or how
long it would remain so after the rigours of use (vibration etc.). Better to
stick with SIL pad type materials or non-hydroscopic Fish card type
insulators.
Chris James
-Original Message-
From: Paul J Smith [ mailto:paul_j_sm...@notes.teradyne.com
mailto:paul_j_sm...@notes.teradyne.com ]
Sent: Tuesday, August 31, 1999 6:20 PM
To: emc-p...@ieee.org
Subject: hard anodized process to insulate metal chassis parts
Good afternoon,
Does anyone know of a process of Hard Anodized metal chassis parts that
is
considered an acceptable insulator against hazardous voltages by any agency.
The
related spec describing this process is MIL- A-8625F.
Please advise at your earliest convenience. Thanks
Best Regards,
Paul J Smith
Teradyne, Inc., Boston
paul.j.sm...@teradyne.com
Voice 617-422-2997
FAX 603-843-7526
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