EN 50065-2-3:2003

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 2-3: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors

This standard applies to electrical equipment using signals in the frequency range 3 kHz to 95 kHz to transmit or receive information on low voltage electrical systems, for electricity suppliers and distributors. In the case of equipment which includes functions other than the transmission or reception of information on low voltage electrical supplies, this standard applies only to that part of the equipment intended for such transmission or reception of information. Other parts of the equipment shall comply with the immunity standard or standards relevant to the functions of those other parts. In the event of tests being specified in those other standards of a different severity and where the construction of the equipment is such that the functions cannot be tested separately, the higher severity shall apply to all affected functions. The object of this standard is to limit mutual influence between mains communication equipment and systems (MCES) operating in different frequency bands as defined in EN 50065-1 and to contribute to ensuring electromagnetic compatibility in general. It specifies essential immunity requirements and test methods, including those tests which are to be performed during typetesting of MCES on low-voltage installations, for electromagnetic interference in general and more specific interference coming from other MCES. It therefore defines the immunity test requirements for apparatus in relation to continuous and transient disturbances, both conducted and radiated, and electrostatic discharges. Test requirements are specified for each port considered. This standard gives limits which are applicable to products operating in the public supply network, operated by electricity utilities. The levels do not however cover extreme cases which may occur in any location but with a low probability of occurrence. In special cases situations will arise where the level of disturbances may exceed the levels specified in this standard e.g. where a hand-held transmitter is used in proximity to an apparatus. In these instances special mitigation measures may have to be employed. It does not specify immunity between mains communication systems operating in the same band (as defined in EN 50065-1) or immunity to signals originating from power line carrier systems operating on high or medium voltage networks. Safety considerations are not included in this standard.

Signalübertragung auf elektrischen Niederspannungsnetzen im Frequenzbereich 3 kHz bis 148,5 kHz - Teil 2-3: Störfestigkeitsanforderungen an Netz-Datenübertragungsgeräte und -systeme, die im Frequenzbereich 3 kHz bis 95 kHz betrieben werden und für den Gebrauch durch Stromversorgungs- und -verteilungsunternehmen bestimmt sind

Transmission de signaux sur les réseaux électriques basse tension dans la bande de fréquences de 3 kHz à 148,5 kHz - Partie 2-3: Exigences d'immunité pour les appareils et les systèmes de communication sur le réseau électrique dans la bande de fréquences de 3 kHz à 95 kHz et destinés à être utilisés par les fournisseurs et les distributeurs d'énergie électrique

Signalizacija po nizkonapetostnih električnih napeljavah v frekvenčnem območju od 3 kHz do 148,5 kHz – 2-3. del: Zahteve za odpornost omrežne komunikacijske opreme in sistemov, ki obratujejo v frekvenčnem območju od 3 kHz do 95 kHz in so namenjeni za uporabo pri dobaviteljih električne energije in distributerjih

General Information

• Status: Published
• Publication Date: 15-Jan-2003
• Withdrawal Date: 31-Jul-2004
• ICS: 33.040.30 - Switching and signalling systems
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: CLC/TC 205A - Mains communicating systems
• Drafting Committee: ISO/IEC/JTC 1/SC25 - ISO/IEC_JTC_1/SC25
• Parallel Committee: ISOIEC/JTC 1/SC25 - ISOIEC_JTC_1/SC25
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 16-Jan-2003
• Completion Date: 16-Jan-2003
• Directive: 2004/108/EC - Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 89/336/EEC - Electromagnetic compatibility (EMC)
• Mandate: BC/CLC/92-02 - BC/CLC/92-02
• Mandate: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 50065-2-3:2004 - Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 2-3: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors

Relations

• Replaced By: EN 50065-2-3:2024 - Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 2-3: Immunity requirements for mains communicating equipment operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors
• Effective Date: 13-Jun-2017
• Amended By: EN 50065-2-3:2003/A1:2005 - Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 2-3: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors
• Effective Date: 28-Jan-2023

Overview

EN 50065-2-3:2003 is a CLC (CENELEC) part of the EN 50065 series that defines immunity requirements and test methods for mains communications equipment and systems (MCES) operating on low-voltage electrical installations in the frequency range 3 kHz to 95 kHz. It applies specifically to equipment intended for use by electricity suppliers and distributors and covers only the portions of devices that transmit or receive information on the public low-voltage mains.

This standard aims to limit mutual interference between MCES in different frequency bands and to ensure electromagnetic compatibility (EMC) in utility environments. Safety requirements are not included.

Key Topics and Requirements

• Scope: Applies to apparatus using signals 3 kHz–95 kHz on public LV networks, including equipment at metering points and LV sides of distribution transformers. Does not cover immunity between systems in the same EN 50065-1 band or signals from HV/MV power-line carrier systems.
• Immunity types tested:
  • Continuous and transient disturbances
  • Conducted and radiated interference
  • Electrostatic discharge (ESD)
  • Narrow‑band conducted interference specific to MCES
• Ports and test coverage: Immunity requirements and test levels are specified for each relevant port (enclosure, signal/control, power ports, earth). Annex A provides the normative test circuit for type-testing.
• Performance criteria:
  • A - Continued operation within manufacturer limits (no data loss)
  • B - Temporary degradation permitted but automatic recovery required
  • (Criterion C exists for compatibility but is not used in this part)
• Test conditions: Devices are tested in their most susceptible operating modes and configurations; auxiliary equipment may be included to exercise ports. Where multiple standards apply, the highest severity test prevails.

Applications / Who Uses This Standard

• Manufacturers of mains communications equipment, PLC-enabled meters, and utility telemetry and control devices
• Test laboratories performing type-testing and EMC compliance testing for utility-grade MCES
• Electricity suppliers, distributors, and system integrators specifying procurement and acceptance criteria for low-voltage communications equipment
• EMC engineers ensuring robust operation of power-line communications in the public supply network

Related Standards

• EN 50065-1 - General requirements and frequency bands for mains signalling
• EN 50082-2 - Generic immunity standard (industrial environment)
• EN 61000-4-x series (e.g., 4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11) - EMC testing techniques
• EN 55022 / CISPR 22 and CISPR 16-1 - Disturbance measurement methods

EN 50065-2-3 is essential reading for anyone designing, testing, specifying, or procuring utility-grade mains communications equipment to ensure reliable, interference-resilient operation on low-voltage networks.

Standards Content (Sample)

SLOVENSKI SIST EN 50065-2-3:2004

STANDARD
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NRPXQLNDFLMVNHRSUHPHLQVLVWHPRYNLREUDWXMHMRYIUHNYHQþQHPREPRþMXRG
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energije in distributerjih
Signalling on low-voltage electrical installations in the frequency range 3 kHz to
148,5 kHz - Part 2-3: Immunity requirements for mains communications equipment
and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for
use by electricity suppliers and distributors
ICS 5HIHUHQþQDãWHYLOND
33.040.30; 33.100.20
! "#$%!&!%’()*#+’
EUROPEAN STANDARD EN 50065-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2003

ICS 33.040.30; 33.100.01
English version
Signalling on low-voltage electrical installations
in the frequency range 3 kHz to 148,5 kHz
Part 2-3: Immunity requirements for mains communications equipment
and systems operating in the range of frequencies 3 kHz to 95 kHz
and intended for use by electricity suppliers and distributors

Transmission de signaux sur les réseaux Signalübertragung auf elektrischen
électriques basse tension dans la bande Niederspannungsnetzen im
de fréquences de 3 kHz à 148,5 kHz Frequenzbereich 3 kHz bis 148,5 kHz
Partie 2-1: Exigences d'immunité Teil 2-3: Störfestigkeitsanforderungen
pour les appareils et les systèmes an Netz-Datenübertragungsgeräte und -
de communication sur le réseau systeme die im Frequenzbereich 3 kHz
électrique dans la bande de fréquences bis 95 kHz betrieben werden und für
de 3 kHz à 95 kHz et destinés den Gebrauch durch Stromversorgungs-
à être utilisés par les fournisseurs und -verteilungsunternehmen bestimmt
et les distributeurs d'énergie électrique sind

This European Standard was approved by CENELEC on 2001-09-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50065-2-3:2003 E
Foreword
This European Standard was prepared by SC 205A, Mains communicating systems, of Technical
Committee CENELEC TC 205, Home and Building Electronic Systems (HBES).
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 50065-2-3 on 2001-09-01.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-08-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-08-01
This part of this standard defines limits and test methods for the immunity of mains
communication equipment and systems (MCES) operating in the range of frequencies from 3 kHz
to 95 kHz and intended for use by electricity suppliers and distributors. Immunity requirements for
similar equipment intended for operation in residential, commercial and light industrial
environments are given in Part 2-1 of this standard. Immunity requirements and tests applicable
to similar equipment intended for operation in industrial environments are given in Part 2-2 of this
standard. For MCES intended to be operated by utilities in the frequency range 3 kHz to 95 kHz,
with lower immunity requirements than specified in this Part 2-3, the specifications of Part 2-2 or
Part 2-1 may be applied.
These tests and limits represent essential electromagnetic compatibility and immunity
requirements for the environment according to the scope. Not all known disturbances have been
included for testing purposes which have been limited to those disturbances known to be critical
for the operation of such equipment including specific MCES disturbances such as conducted
narrow band.
The immunity requirements have been selected to ensure an adequate level of immunity for
MCES for use by electricity utilities. The levels do not however cover extreme cases which may
occur in any location but with an extremely low probability of occurrence.
NOTE This standard takes into account EN 50082-2, the generic immunity standard for the industrial environment,
from which much of the material is taken, but considering also the specific requirements for MCES in utilities’
environment. However the nature of MCES is such that the performance criteria given in clause 5 of this standard differ
from those given in EN 50082-2, particularly regarding the recovery of equipment following a disturbance. For clarity
and completeness all the affected sections of EN 50082-2 are therefore repeated in this part.
Annexes designated "normative" are part of the body of the standard.
In this standard, annex A is normative.

– 3 – EN 50065-2-3:2003
Contents
Page
1 Scope. 4
2 Normative references.4
3 Definitions . 5
4 Description of locations . 6
5 Performance criteria. 6
6 Conditions during testing. 7
7 Immunity specifications. 7
7.1 Applicability of immunity test requirements . 7
7.2 Test specifications.8
7.2.1 Immunity requirements.8
7.2.2 Narrow-band conducted interference.13
Annex A (normative) Test circuit used for immunity tests .15
A.1 Test circuit specification .15
A.2 Method of testing.16

Figure 1 – Examples of ports . 6
Figure 2 – Signal source and coupling network for narrow-band conducted
interference test.13

Table 1 – Immunity: Enclosure port.9
Table 2a – Immunity: Ports for signal and control lines .10
Table 2b – Immunity: Ports for process, measurement and long bus and control lines .10
Table 3 – Immunity: d.c. input and d.c. output power ports.11
Table 4 – Immunity: a.c. input and a.c. output power ports.12
Table 5 – Input a.c. power ports.14

1 Scope
This standard applies to electrical equipment using signals in the frequency range 3 kHz to
95 kHz to transmit or receive information on low voltage electrical systems, for electricity
suppliers and distributors. In the case of equipment which includes functions other than the
transmission or reception of information on low voltage electrical supplies, this standard applies
only to that part of the equipment intended for such transmission or reception of information.
Other parts of the equipment shall comply with the immunity standard or standards relevant to the
functions of those other parts. In the event of tests being specified in those other standards of a
different severity and where the construction of the equipment is such that the functions cannot
be tested separately, the higher severity shall apply to all affected functions.
The object of this standard is to limit mutual influence between mains communication equipment
and systems (MCES) operating in different frequency bands as defined in EN 50065-1 and to
contribute to ensuring electromagnetic compatibility in general. It specifies essential immunity
requirements and test methods, including those tests which are to be performed during type-
testing of MCES on low-voltage installations, for electromagnetic interference in general and
more specific interference coming from other MCES. It therefore defines the immunity test
requirements for apparatus in relation to continuous and transient disturbances, both conducted
and radiated, and electrostatic discharges. Test requirements are specified for each port
considered.
This standard gives limits which are applicable to products operating in the public supply network,
operated by electricity utilities. The levels do not however cover extreme cases which may occur
in any location but with a low probability of occurrence. In special cases situations will arise where
the level of disturbances may exceed the levels specified in this standard e.g. where a hand-held
transmitter is used in proximity to an apparatus. In these instances special mitigation measures
may have to be employed.
It does not specify immunity between mains communication systems operating in the same band
(as defined in EN 50065-1) or immunity to signals originating from power line carrier systems
operating on high or medium voltage networks.
Safety considerations are not included in this standard.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
EN 50065-1 Signalling on low-voltage electrical installations in the frequency
range 3 kHz to 148,5 kHz – Part 1: General requirements, frequency
bands and electromagnetic disturbances
EN 50082-2 Electromagnetic compatibility – Generic immunity standard –
Part 2: Industrial environment
EN 55022 1998 Information technology equipment – Radio disturbance
characteristics – Limits and methods of measurement
(CISPR 22:1997, mod)
– 5 – EN 50065-2-3:2003
EN 61000-3-2  Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for
harmonic currents emissions (equipment input current up to and
including 16 A per phase) (IEC 61000-3-2)
EN 61000-4-2 Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
(IEC 61000-4-2)
EN 61000-4-3 Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency,
electromagnetic field immunity test (IEC 61000-4-3, mod)
EN 61000-4-4 Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity
test (IEC 61000-4-4)
EN 61000-4-5 Electromagnetic compatibility (EMC) –- Part 4-5: Testing and
measurement techniques – Surge immunity test (IEC 61000-4-5)
EN 61000-4-6 Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances,
induced by radio-frequency fields (IEC 61000-4-6)
EN 61000-4-8 Electromagnetic compatibility (EMC) – Part 4-8: Testing and
measurement techniques – Power frequency magnetic field immunity
test (IEC 61000-4-8)
EN 61000-4-11 Electromagnetic compatibility (EMC) – Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and
voltage variations immunity tests (IEC 61000-4-11)
CISPR 16-1 1999 Specification for radio disturbance and immunity measuring
apparatus methods – Part 1: Radio disturbance and measuring
apparatus
International Electrotechnical Vocabulary –
IEC 60050-161
Chapter 161: Electromagnetic compatibility
3 Definitions
For the purpose of this standard, the following definitions together with those in IEC 60050-161
apply.
3.1
electromagnetic interference
see definition given in IEC 60050-161-01-06
3.2
immunity
ability of MCES to perform within specified limits in the presence of an electromagnetic
disturbance
NOTE 1 Influences between MCES operating in the same frequency band (see EN 50065-1) are not taken into
account.
NOTE 2 See IEC 60050-161 for a more general definition.

3.3
immunity level
maximum level of a given electromagnetic disturbance incident on the equipment for which it
remains capable of operating at a specified degree of performance
(Definition given in IEC 60050-161-03-14)
3.4
port
particular interface of the specified accessory with the external electromagnetic environment (see
Figure 1)
3.5
cable port
point at which a conductor or a cable is connected to the accessory. Examples are signal, control
and power ports
3.6
enclosure port
physical boundary of the accessory through which electromagnetic fields may radiate or impinge
3.7
public mains network
electricity lines to which all categories of consumers have access and which are operated by a
supply or distribution undertaking for the purpose of supplying electrical energy
3.8
severity level
value of an influencing electromagnetic quantity specified for an immunity test
Enclosure port
AC power port Signal/control port
APPARATUS
DC power port Earth port
Figure 1 – Examples of ports
4 Description of locations
The environments encompassed by this standard are any locations in the public supply low
voltage (LV) network both indoor and outdoor. Apparatus covered by this standard is not intended
to be connected to a power network supplied from a high or medium-voltage transformer
dedicated to the supply of an installation feeding manufacturing or similar plant. This standard
applies to apparatus intended to operate in any location where electricity utilities’ MCES are
operated. Thus it applies to equipment installed at the boundary of a property, e.g. at the
metering point, and equipment installed at the LV side of a distribution transformer, and any
connected point between.
5 Performance criteria
For the purposes of the tables the performance criteria are:
A : the MCES continues to operate as intended (e.g. transmission, reception) within the
performance limits specified by the manufacturer. No change of actual operating state or
stored data is allowed;
– 7 – EN 50065-2-3:2003
B : a temporary degradation or loss of function or performance is permitted during the
disturbance provided the equipment automatically resumes normal operation following the
removal of the disturbance. The time behaviour for this resumption of normal operation
shall be as specified in the MCES manufacturer's specification. No change of actual
operating state or stored data is allowed;
C : a temporary
...