Hi All 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? Thanks John - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/
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