Hello all, Would the NRTL program be a big plus for the ITE certified component, such as power supply???
Tac Pham HC Power, inc. > I tried to recall NRTLs that were approved for asessments of ITE to > UL1950. I did not overlook MET (listed in my note), but may have > missed NTS which may fit this description. I'm not sure the others > are sanctioned for listing of ITE under UL1950. > > There are many NTRLs, including UL. There is no "NRTL" mark, as all > NRTLs are legally equal. The mark of some NRTLs has included the > letters "NRTL" as part of their mark, apparantly by choice. The > CSA/NRTL mark is an example. To my knowledge, the use of "NRTL" in > an agency's mark is not mandatory. CSA has recently changed their > mark to drop the "NRTL" and simply show the CSA mark with "US" > subscript for assessment to the U.S. stadnard. > > However, Canada does not recognize the U.S. NRTLs to assess an ITE > product to the Canadian standard. There is a mutual agreement between > Canada and the U.S. that "allows" a UL assessment to the Canadian ITE > safety standard. This results in the UL mark with a subscript "C", > often called the "c-UL" mark. It is my understanding that when the > Canadian government bids out ITE for its own use, they tend to prefer > the CSA mark over the c-UL mark. This seems to violate the "spirit" > of the agreement, but who can force them to do otherwise? > > George Alspaugh > > (Some or all of the above may reveal ignorance on my part, which can > be "cured" by more enlightened appends to follow.) --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
