This is partially true in that while the there are some EU standards harmonized with UL standards, they are not completely harmonized and you still have to consider the U.S. National Deviations to be totally complaint a good example is component approvals. The UL standard will usually require a component to be compliant to a UL component standard while the IEC/EN standards reference the IEC/EN component standards.
Another good example where this will kill you if you only consider the IEC/ EN requirements is for UL6500...The IEC/EN 60065 standard only requires a fire enclosure to be rated 94-HB, in most cases, while the UL standard has a U.S. deviation which requires 94-V2 plastic.....so beware and check for all National Deviations.............. From: drcuthbert [mailto:[email protected]] Sent: Friday, January 17, 2003 4:31 PM To: 'Amund Westin'; [email protected] Subject: RE: SV: NRTL in the U.S. Amund, Several EU standards have been harmonized with the United States UL standards. A list can be found at http://ulstandardsinfonet.ul.com/catalog/stdscatframe.html For example, UL 60950 the same as EN 60950. So, I'm thinking that if your device meets EU safety requirements it will make it through UL as long it has been designed to a harmonized standard. Does this sound reasonable to anyone or am I off the mark? Dave Cuthbert From: Amund Westin [mailto:[email protected]] Sent: Friday, January 17, 2003 12:25 PM To: [email protected] Subject: SV: SV: NRTL in the U.S. I would never dare to declare U.S. compliance without testing and certify via a NRTL. But what I am struggling with, is to gain knowledge about the basic electrical safety laws in U.S. Maybe I do not need legally to go through a NRTL, but that does not mean I would, even if I could. The electrical safety legislation seems to be a bit more complicated in U.S. compared to EU. Best regards Amund Westin, Oslo / Norway > -----Opprinnelig melding----- > Fra: [email protected] > [mailto:[email protected]]På vegne av John Woodgate > Sendt: 17. januar 2003 13:25 > Til: [email protected] > Emne: Re: SV: NRTL in the U.S. > > > > I read in !emc-pstc that Amund Westin <[email protected]> wrote > (in <[email protected]>) about 'SV: > NRTL in the U.S.' on Fri, 17 Jan 2003: > > >Just for a few seconds forget the customers requirements, is it > therefore a > >correct interpretation that electrical equipment (ITE, household > appliances, > >radio transmitters, etc) must be certified in order to follow > the U.S. laws > > I think you really already had the strictly correct answer, but it's > over-complicated. > > The practical answer is that it's much better to have certification than > not to have it, unless the cost of certification would make your product > uncompetitive against other, uncertified products in competition with > yours. > -- > Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? 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