As usual Egon, you are correct we have abandoned are old 25 Amp tester and created a new fixture to allow us to do the continuity tests at twice the rating of the branch protection, 30,40 or 60 Amps. We tried many different approaches and quoted many different standards but this issue is one that UL and CSA will not budge on. You may get by at 25 if you list under UL1950 Second Edition for U.S. only but third edition or a C-UL mark will have you testing at 30 Amps or twice the rating of the branch protection. Also UL does not consider supplementary protector ratings as applicable, so if you want to base your test current on inherent devices in the equipment you have to make sure the protection device is listed to the proper UL standard.
By the way, CSA 0.4 is required not only in Canada, but also in the US. Since both countries have adopted the same binational CSA950/UL1950 standard, and since CSA 0.4 is specifically required by this standard, this has become an official requirement for the US. This is an unequivocal requirement, so I have no doubt that all US safety agencies are diligently performing the CSA tests. Monty Griffith Senior Product Safety Engineer EMC Quality Manager Intergraph Compliance Services Ph. (256) 730-6017 Fx. (256) 730-6239 http://cscsrv.ics.ingr.com --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
