Dear Bill, Reinforced or Double Insulation is only required between the primary hazardous voltage circuits (mains) and the E1 interface (TNV-1). 3kV is typical but the dielectric strength value is based on the measured voltage between the primary and secondary circuits. You must also meet the required clearances and creepages (spacings) which are also based on the voltage measurements, the Installation Category and Pollution Degree. Also, the insulation must meet the distance through insulation requirements as specified in the standard. UL1950 and EN 60 950 specifies the required values.
Regards, > From: [email protected] > Subject: E1 3KV isolation > Content-Description: cc:Mail note part > > When do E1 ports require Reinforced insulation (3KV electric strength)? > Is it application or country sensitive? > > Bill Schwartz > INRANGE > PETER S. MERGUERIAN MANAGING DIRECTOR PRODUCT TESTING DIVISION I.T.L. (PRODUCT TESTING) LTD. HACHAROSHET 26, P.O.B. 211 OR YEHUDA 60251, ISRAEL TEL: 972-3-5339022 FAX: 972-3-5339019 E-MAIL: [email protected] Visit our Website: http://www.itl.co.il
