Standard

NEK EN 50065-4-4:2003

Jan 2003 Withdrawn

Note: This standard has a new edition: NEK EN 50065-4-4:2023

Corrigendums and amendments are bought separately.

Language English

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Abstract

This standard applies to impedance filters in a mains communication system for phase to neutral voltage not exceeding 250 V a.c. and a nominal current not exceeding 125 A, intended for household and similar fixed installation including residential, commercial and light industrial buildings. This standard also applies to "plug-in filters".These filters (see Figure 1) are used to set a suitable impedance, in the nominal frequency range of the mains signalling system, at any point of the low voltage mains network where a low impedance equipment is connected, in order to allow reliable operation of mains signalling system. These impedance filters can be used either in utility or consumer networks. They may also be used in conjunction with incoming filters and segmentation filters.

Document information

Standard from NEK
Published: 23 January 2003
Withdrawn: 24 March 2026
Edition: 2003-01
Version: 1
Document type: NAT
ISBN:

ICS 31.160
ICS 33.040.30
ICS 97.120

Product Relations

Replaced by: NEK EN 50065-4-4:2023
Referred by: NEK EN 50065-4-1:2023
Adopted from: EN 50065-4-4:2003 , 0

NEK EN 50065-4-4:2003

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NEK EN 50065-4-4:2023