[email protected] wrote (in 
<C16858ED90BCC74686D26F1CFBFC00EA40A466@exchange>) about 'Looking for 
IEC 1000-4-1', on Thu, 20 Oct 2005:
>The UPS standard EN 50091-2: 1995 has a requirement for low frequency 
>immunity tests per subclause A.1.1.4b of IEC 1000-4-1.
>
>I have a copy of EN 61000-4-1 but it has no test methods and no 
>subclause A.1.1.4b.
>
>Does anybody know what spec EN 50091-2 is referring to and where to get 
>a copy or just what the test method is for coupling the LF signals onto 
>3 phase equipment?

The standard is in urgent need of updating, at least in terms of the 
references to other standards. Many of them are obsolete and even 
withdrawn. I will try to stir some action on the matter.
-- 
Regards, John Woodgate, OOO - Own Opinions Only.
Deadlines are 90% of deadliness.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

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