RE: Class 1 AC/DC adapter

e' Subject: RE: Class 1 AC/DC adapter Let's look at these what ifs. > From: ChengWee Lai > Sent: Tuesday, November 04, 2003 4:38 PM > > Raymond might be able to convince Safety agency > to accept PE continuity test > with 1500Vac Hipot at the production line. > Ho

RE: Class 1 AC/DC adapter

Hello Rich, >> 3. I believe you will have to use 3000Vac or 4242Vdc >> between primary and >> secondary side, unless you have a failure, then there >> are steps to go >> through to isolate the failure. >The adapter has basic insulation between mains >and the PE terminal, and reinfor

RE: Class 1 AC/DC adapter

Hello Rich, Agree to the compliance thought process for PE according to the 60950 standard. In my years working in power supply industry, I have never done the ground continuity test between Earth terminal to the DC output for adaptor. Normally I wouldn't trust the PE path with anything less th

RE: Class 1 AC/DC adapter

reinforce Hipot test with your power adaptor. That in return will make your adaptor hard to sell. Good luck, Chengwee Lai Netscreen Technologies, Inc Tel: +1-408-543-4126 email: c...@netscreen.com From: raymond...@omnisourceasia.com.hk mailto:raymond...@omnisourceasia.com.hk] Sent: Satur

RE: Class 1 AC/DC adapter

part not protect by earth ground, it will be considered as a failure. Chengwee From: john.radom...@modicon.com [mailto:john.radom...@modicon.com] Sent: Friday, October 24, 2003 12:45 PM To: ChengWee Lai Cc: EMC PSTC Subject: RE: Class 1 AC/DC adapter > Earth Continuity or ground bond test

RE: Class 1 AC/DC adapter

years in power supply industry, it should answer to many of your question. Standard reference might be old, but principle is still the same. http://www.phihong.com/html/safety_compliance.html Take care, Chengwee Lai Netscreen Technologies, Inc Tel: +1-408-543-4126 email: c...@netscreen.com

EMC Precompliance system

m or what to look for would be really appreciated. Thanks, Chengwee Lai Netscreen Technologies, Inc Tel: +1-408-543-4126 email: c...@netscreen.com 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

Hipot and Ground Bond tester for Production

Hypot III, 3665 2. QuadTech Sentry 20 3. Vitrek V50 4. ED&D HP2000 Thanks in advance Chengwee Lai Senior Compliance Engineer Netscreen Technologies, Inc Tel: +1-408-543-4126 email: c...@netscreen.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-

Isreal Compliance Requirement

equipment with no PSTN connection. Thanks, Chengwee Lai 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: majord...@ieee.org with the