I've been doing some research on the IEC 61000-4-6 standard, and have a couple of questions that hopefully someone here can answer. What is the rationale behind specifying the test level as Vemf (open circuit voltage)? The calibration is actually done to 1/2 the test level since the calibration fixture is terminated. When performing clamp injection according to section 7.4, the injected current is monitored and limited by the formula Imax = Uo/150. Since the test level Uo is specified as an open circuit voltage, and the terminated calibration level is 1/2 Uo, would this not allow the EUT to be overtested by 6dB? Bob Richards, NCT. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/
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