Gents,
My understanding of EN61000-3-2,3 is that they are applicable to the
power input terminals of equipment intended to be connected to systems with
240/415-250/430V operating at 50-60Hz. Therefore if 480 V is supplied to a
building, with a local transformer to step the voltage down to 400V, is the
equipment operating within the building exempt from these standards. What
if the HV transformer that steps down HV-480V supplies other buildings as
well, are we still exempt from the requirements of this standard.
Thanks in advance,
Regards,
William D'Orazio
CAE Inc.
Electrical System Designer
Phone: (514) 341-2000 (X4555)
Fax: (514)340-5552
Email: [email protected]
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