My recollection is (without reading the standard) that the make first / break last requirement only applies to connectors operated by the user or other non trained persons.
Then it should also seem reasonable that the requirement would not apply to a product meeting ALL class II requirements. However, protection preventing contact (by the test finger) with a live pin of a partially inserted plug or connector WILL apply if the connector can be used by non trained persons, regardless of the protection class.Rgds, Lou Aiken, LaMer LLC 27109 Palmetto Drive Orange Beach, AL 36561 USA Tel 251 981 6786 Fax 251 981 3054 Mobile 251 979 4648 ----- Original Message ----- From: Jon Jones <[email protected]> To: Emc-Pstc (E-mail) <[email protected]> Sent: Monday, July 01, 2002 11:40 AM Subject: EN60950 functional earthing. > > Group, > > Regarding Functional earthing requirements for Class II equipment. > > Is there a general requirement for the functional earth in an equipments > power connector to follow the make first break last rule with regards to EMC > (EN55022) and Safety. > > Thanks in advance > > > Jon Jones > ATL telecom. > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: [email protected] > Dave Heald: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://ieeepstc.mindcruiser.com/ > Click on "browse" and then "emc-pstc mailing list" > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
