I made that claim. Here is the rationale. Considering the guidance given in 74/484/CDV, Subclause 6.3 [or, EN60950/A4, Subclause 6.5], and using the guidance in Subclause 2.6.3.3 [or EN60950/A4, Subclause 2.5.11], (1.3A)X(1.5)=1.95A
Regards, Peter L. Tarver Nortel [email protected] > -----Original Message----- > > From: "Richard Poate" <[email protected]> > Subject: RE: Protective Earth > > There has been some discussion regarding connection of TNV & earthed > SELV circuits and the test current used to prove the protective earth > in accordance with EN 60950 Clause 2.5.11. It has been suggested > that UL, CSA and TUV Rheinland have endorsed the value of 2A. Can > anyone explain how this value is derived ? > > Best Regards > Richard Poate > Customer Liaison Manager > TUV Product Service > Tel: +44 (0)1329 443438 > Fax: +44 (0)1329 443421
