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-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org] On Behalf Of Israel Yeshurun
Sent: donderdag 7 oktober 1999 12:43
To: 'emc-p...@ieee.org'
Subject:Hot Surface. Hot air.
Dear Group
Now, 70 degrees C for external equipment surface that may be
touched
seems pretty high to me. 100 degrees C metal surface will, I believe,
cause
a burn to that part of the human body that touched it.
So maybe my interpretation is not true ??and, can someone point
another
Hello Israel:
Unfortunately, safety standards only address one of the
critical parameters, temperature, when specifying
requirements for protection against a burn injury.
You are absolutely correct that a metal surface with a
temperature exceeding 50 C is capable of producing a burn
http://www.ccsemc.com
-Original Message-
From: Israel Yeshurun [SMTP:israel_yeshu...@stcl.scitex.com]
Sent: Thursday, October 07, 1999 3:43 AM
To: 'emc-p...@ieee.org'
Subject: Hot Surface. Hot air.
Dear Group Fellows
I would like to raise the following two
I have a copy of a standard EN 563:1994, Safety of machinery - Temperatures of
touchable surfaces - Ergonomics data to establish temperature limit values for
hot surfaces. It is only 18 pages but includes charts and graphs of burn
threshold vs contact time for plastic, metal, and ceramic
Message-
From: Israel Yeshurun [SMTP:israel_yeshu...@stcl.scitex.com]
Sent: Thursday, October 07, 1999 3:43 AM
To: 'emc-p...@ieee.org'
Subject: Hot Surface. Hot air.
Dear Group Fellows
I would like to raise the following two issues:
1) UL1950 / EN60950
Here's a post from 1997...
I don't know where I got the following chart, but
I believe it's from the The Shriners Burn Institute.
Someone else gave it to me. If anyone recognizes
this list, I would really like to know. I assume
I'm quoting someone, so I take absolutely no
credit for it.
Hello Israel,
I've not checked your numbers but believe the rationale is, in the case of
Item 1) below: that should one come into contact with a surface at these
temperatures, one will withdraw quickly and no damage is anticipated.
And, in the case of Item 2) below: should one come into contact
Dear Group Fellows
I would like to raise the following two issues:
1) UL1950 / EN60950 Safety standards, Subclause 5.1 - Heating, Table
16 part 2, specify permissible temperature rise for external surfaces of
equipment in Operator Access Area..
For external surfaces,
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