240 VA (not W) is defined as "energy hazard" in UL/IEC 60950 and its
predecessors, UL 950 and UL 478. "Energy hazard" only applies if the potential
is 2 V or more.
(The dimension for energy is the Joule, not the volt-ampere.)
The standards state:
"A risk of injury due to an energy hazard exists if it is likely that
two or more bare parts
between which a HAZARDOUS ENERGY LEVEL exists, will be
bridged by a metallic object."
The standards do not state what the injury is.
The 8 A, 30 V, 100 VA (not 240 VA) is the limit for an "inherently limited
power source."
Rich
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
<[email protected]>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site at
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used
formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <[email protected]>
Mike Cantwell <[email protected]>
For policy questions, send mail to:
Jim Bacher: <[email protected]>
David Heald: <[email protected]>
