Jim, Does your product connect to any auxiliary equipment that has an earth connection, whether directly or indirectly?
Don Umbdenstock Sensormatic > ---------- > From: Jim Hulbert[SMTP:[email protected]] > Reply To: Jim Hulbert > Sent: Wednesday, March 01, 2000 10:32 AM > To: [email protected] > Subject: Surge Testing per EN 55024/EN61000-4-5 > > > > > Colleagues, > > EN 55024 calls for surge pulses to be applied line-to-line and > line-to-earth on > the AC mains port and line-to-ground on signal and telecommunications > ports that > connect directly to outdoor cables. However, if my EUT is encased in > plastic > covers and has no direct earth ground connection (class 2 power supply), > is the > line-to-line test on the AC mains the only surge test that I need to > apply? It > seems to me that performing a line-to-earth test on either the AC mains > port or > on signal/telecommunications ports is not warranted since the basic > standard EN > 61000-4-5 does not specify placing the EUT over a reference ground plane. > With > no reference ground plane and no direct ground connection how can a test > be > applied with respect to ground? > > Jim Hulbert > Pitney Bowes > > > > --------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list adminstrators: > Jim Bacher: [email protected], or > Michael Garretson: [email protected] > For policy questions, send mail to: > Richard Nute: [email protected] > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
