Be certain to check ยง2.7.4 and 2.7.6 of EN60950. Seems to me it's being handled by the standard, Ilan. The key is whether or not the single-pole fuse is user replaceable.
Regards, Peter L. Tarver, PE [email protected] > From:[email protected] > Sent: Wednesday, October 29, 2003 7:26 AM > > Ilan, EN60950 requires both overload and earth > fault protection. Pluggable products may rely > upon the building protection (mains fuses, > breakers) to provide line to earth fault > protection. If so, a single internal fuse or > breaker can protect against overload. Such > construction is allowed and is considerd to be > safe even if the mains plug is not polarized. > > Richard Woods > Sensormatic Electronics > Tyco International > > -----Original Message----- > From: Ilan Cohen > Sent: Wednesday, October 29, 2003 8:57 AM > > Dear Group > I have been looking into the usage of the > Continental European Plug also known as Schuko > CEE7 plug (earthed plug). It can be inserted into > the Wall socket without a way to ensure that line > is connected to line and Neutral to Neutral. > It presents a technical problem with products, which are protected by one fuse. > Typically a fuse is installed in the Line in any product. To be really safe there > > should be two fusses, one in the line and another in the neutral. > > Ilan Cohen 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] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
