Hi there Which time is required for testing Surge for a equipment with 3AC N 400V? Industrial enviornment Silly question but I have seen different approaches Test in 500 V steps from 500 to 2000V. an Test in 500 V steps from 500 to 2000V at 0, 90, 180 and 270 degree, per step 5 each Testing just the maximum voltage in an undefined angle to mains, per step 5 each Testing below and protection equipment and max Times from pulse to pulse betwen 10 sec to 2 minutes Testing 5 pulses in total Best regards Markus Plangger - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/
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