Wow, that seems higher than what I would have expected.

I think (25 deg C + 40 deg C) is probably subjectively too high.

P.S. My email client spell checker suggests I spell your name=20
"Hallucinogen".

:-)

Mark Skeels
Engineer
Competition Electronics, Inc.
TEL: 815-874-8001
FAX: 815-874-8181
www.competitionelectronics.com

On 9/15/2010 10:56 AM, Harold Hallikainen wrote:
> Looking at UL 60065, 7.1.5, table 3, metallic knobs can rise 30 degrees C=
..
> Non-metallic knobs can rise 50 degrees C. Metal enclosures can rise 40
> degrees C. Non-metallic enclosures can rise 60 degrees C.
>
> UL 60065's scope is Audio, Video and Similar Electronic Apparatus. I
> suspect other standards would have similar requirements.
>
> Harold
>
>
>
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