DS DS/EN 60437
DS DSEN 60437 1997-DEC-23 Rado nterference test on hgh-voltage nsulators
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This standard specifies the procedure for a radio interference (R.I.) test carried out in a laboratory on clean and dry insulators at a frequency of 0,5 MHz or 1 MHz or alternatively at other frequencies between 0,5 MHz and 2 MHz.