Abstract
This standard applies to decoupling filters installed on the low voltage mains network and operating in the frequency range 3 kHz to 148,5 kHz on low voltage mains network.
It does not apply to general purpose filters for EMI suppression.
It does not apply to protocol dependant devices except physical layer (frequency).
It does not apply to filters incorporated in household equipment for example: washing machines and coffee machines.
It specifies the impedance and the transfer function definitions, requirements and test methods of the decoupling filter and some other requirements for example Voltage Drop, Leakage Current and Form Factor.
The impedance and the transfer function are referred to the decoupling filter mains power ports (ref. Figure 1).
The use of the decoupling filter is considered optional; additional rules or obligations may exist that are outside the scope of this standard.
The safety requirements related to decoupling filters are not covered in this standard. They are covered in an other part of the EN 50065 set of standards
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