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FprEN 50065-4-3 Edition 11/2022
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-3: Low voltage decoupling filter - Incoming filter


This document applies to incoming filters used to control the coupling of signals between the utility area and the consumer area, as illustrated in Figure 1. This document defines: — the minimum impedance in the relevant frequency band(s) at both utility port and consumer port, — the minimum attenuation of unwanted signals transmitted from the utility side to the consumer side and vice versa. This document applies to incoming filters designed for single or multiphase installations. [Figure 1 - The application of incoming filter]


Final draft - Active


Technical Committee :
CLC/TC 205A : Mains communicating systems


start of the vote on the project    23/04/2021   date of ratification (dor)    26/09/2022
end of the vote on the project    16/07/2021   date of anouncement (doa)    28/02/2023
start of the vote on the final project    01/07/2022   date of publication (dop)    29/05/2023
end of the vote on the final project    26/08/2022   date of withdrawal (dow)    29/05/2023

Publication Official Journal
of the Grand-Duchy of Luxembourg

International Classification for Standards (ICS codes) :

31.160 : Electric filters
33.040.30 : Switching and signalling systems
97.120 : Automatic controls for household use


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