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Home > Archive > Electrical code Compliance > June 2006 > hopefully not OT : PSU Temperature
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hopefully not OT : PSU Temperature
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| Greetings
Hope this question is not off topic
Can anyone point me to a standard that defines
what the maximum external case temperature of a
"wall wart" PSU can / should be ?
I have googled , but cannot find anything ...
TIA
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| hrhofmann@att.net 2006-06-26, 1:25 pm |
| I would contact your nearest Underwriter's Laboratories person and talk
to them. I am assuming you are in the USA due to your use of the term
wall-wart.
H. R. (Bob) Hofmann
jon wrote:
> Greetings
>
> Hope this question is not off topic
>
> Can anyone point me to a standard that defines
> what the maximum external case temperature of a
> "wall wart" PSU can / should be ?
>
> I have googled , but cannot find anything ...
>
> TIA
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<hrhofmann@att.net> wrote in message
news:1151339267.004137.297070@m73g2000cwd.googlegroups.com...
>I would contact your nearest Underwriter's Laboratories person and talk
> to them. I am assuming you are in the USA due to your use of the term
> wall-wart.
>
> H. R. (Bob) Hofmann
>
> jon wrote:
>
Thanks for the response.
Actually, I am in the EU 
That will teach me to use an Americanism....
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| Andrew Gabriel 2006-06-30, 9:25 am |
| In article <Sdydnapg_sG2bT7ZRVny2g@pipex.net>,
"jon" <j_alight@REMOVEME.hotmail.com> writes:[color=darkred]
This is the wrong standard for that application, but there are
figures in BS7671 (Wiring Regs) for max temperatures of items
forming part of the wiring installation within arm's reach, to
avoid burns...
Hand-held means of operation:
metallic: 55C, non-metalic: 65C
Item to be touched, but not hand-held:
metallic: 70C, non-metalic: 80C
Item which need not be touched in normal operation:
metallic: 80C, non-metalic: 90C
--
Andrew Gabriel
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