Hi all,
Good day,
1) Why is Class III electrical protection not accepted in IEC 60601-1, standard 
for medical device safety?
2) Why is there no uniform values for SELV? Example: SELV is defined as voltage 
not exceeds 25Vrms and 30Vrms for IEC 60601-1 and IEC 60950-1 respectively. 
Isn't it easier when there is an uniform value for SELV across various product 
safety standards?
3) Under what scientific basis, are the values for SELV being defined?
Hope to hearr from you soon. Thank you.

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 

All emc-pstc postings are archived and searchable on the web at:

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 <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>

For policy questions, send mail to:
Jim Bacher:  <j.bac...@ieee.org>
David Heald: <dhe...@gmail.com>

Reply via email to