In general, the Class 1 appliances have metal enclosure whereas Class 2
have plastic enclosure.  There is a small group of products that are Class
1 without an access earth point, i.e. shredding machines, desktop fans,
laptop/monitor power suppliers, etc.  What are the real benefits from such
design as compared with Class 2 design?

Thanks and regards,


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:

Instructions: (including how to unsubscribe)
List rules:

For help, send mail to the list administrators:
Mike Cantwell <>

For policy questions, send mail to:
Jim Bacher:  <>
David Heald: <>
To unsubscribe from the EMC-PSTC list, click the following link:

Reply via email to