EN 62054-11:2004

Electricity metering (a.c.) - Tariff and load control - Part 11: Particular requirements for electronic ripple control receivers

specifies particular requirements for the type test of newly manufactured indoor electronic ripple control receivers for the reception and interpretation of pulses of a single audio frequency superimposed on the voltage of the electricity distribution network and for the execution of the corresponding switching operations. In this system the mains frequency is generally used to synchronize the transmitter and receivers. Neither the control frequency nor the encoding are standardized in this standard.

Wechselstrom-Elektrizitätszähler - Tarif- und Laststeuerung - Teil 11: Besondere Anforderungen an elektronische Rundsteuerempfänger

Equipement de comptage d'électricité (c.a.) - Tarification et contrôle de charge - Partie 11: Prescriptions particulières pour récepteurs électroniques de télécommande centralisée

Merjenje električne energije (a.c./izmenični tok) – Krmiljenje tarif in bremen – 11. del: Posebne zahteve za elektronske tonsko frekvenčne omrežne sprejemnike (IEC 62054-11:2004)

Ta del standarda IEC 62054 določa posebne zahteve za tipsko preskušanje na novo izdelanih notranjih elektronskih tonsko frekvenčnih omrežnih sprejemnikov za sprejem in interpretacijo pulzov ene avdiofrekvence, dodani napetosti distribucijskega omrežja za električno energijo, in za izvajanje ustreznih stikalnih operacij. V tem sistemu se omrežna frekvenca na splošno uporablja za sinhronizacijo oddajnika in sprejemnikov. Frekvenca krmiljenja in kodiranje nista standardizirana v tem standardu.
V tem standardu niso podane zahteve za konstrukcijske podrobnosti sprejemnika.
Kadar je funkcija mrežnega tonskega krmiljenja vgrajena v večfunkcijsko opremo za merjenje električne energije, veljajo ustrezni deli tega standarda.
Ta standard ne obravnava preskusov sprejemljivosti in skladnosti. Kljub temu je primer preskusa sprejemljivosti podan v dodatku D.
Vidik zanesljivosti je zajet v dokumentih iz skupine standardov IEC 62059.
Pri uporabi tega standarda skupaj s standardom IEC 62052-21 imajo zahteve tega standarda prednost pred zahtevami standarda IEC 62052-21 glede katerega koli elementa, ki ga že obravnava.

General Information

• Status: Published
• Publication Date: 27-Oct-2004
• Withdrawal Date: 30-Jun-2007
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: CLC/TC 13 - Equipment for electrical energy measurement and load control
• Drafting Committee: IEC/TC 13 - IEC_TC_13
• Parallel Committee: IEC/TC 13 - IEC_TC_13
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 28-Oct-2004
• Completion Date: 28-Oct-2004
• 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: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Ref Project: SIST EN 62054-11:2005 - Electricity metering (a.c.) - Tariff and load control -- Part 11: Particular requirements for electronic ripple control receivers

Relations

• Replaces: EN 61037:1992/A2:1998 - Electricity metering - Tariff and load control - Particular requirements for electronic ripple control receivers
• Effective Date: 28-Jan-2023
• Amended By: EN 62054-11:2004/A1:2017 - Electricity metering (a.c.) - Tariff and load control - Part 11: Particular requirements for electronic ripple control receivers
• Effective Date: 23-Jan-2023
• Replaces: EN 61037:1992 - Electricity metering - Tariff and load control - Particular requirements for electronic ripple control receivers
• Effective Date: 28-Jan-2023
• Replaces: EN 61037:1992/A1:1996 - Electricity metering - Tariff and load control - Particular requirements for electronic ripple control receivers
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI SIST EN 62054-11:2005
STANDARD
junij 2005

0HUMHQMHHOHNWULþQHHQHUJLMHDFL]PHQLþQLWRN±.UPLOMHQMHWDULILQEUHPHQ±

GHO3RVHEQH]DKWHYH]DHOHNWURQVNHWRQVNRIUHNYHQþQHRPUHåQH
sprejemnike (IEC 62054-11:2004)

Electricity metering (a.c.) - Tariff and load control - Part 11: Particular requirements

for electronic ripple control receivers (IEC 62054-11:2004)
ICS 5HIHUHQþQDãWHYLOND
91.140.50
SIST EN 62054-11:2005(en)
! "#$%!&!%’()*#+’
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD EN 62054-11
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2004
ICS 91.140.50 Partially supersedes EN 61037:1992 + A1:1996 + A2:1998
English version
Electricity metering (a.c.) –
Tariff and load control
Part 11: Particular requirements for
electronic ripple control receivers
(IEC 62054-11:2004)
Equipement de comptage d'électricité Wechselstrom-Elektrizitätszähler –
(c.a.) – Tarif- und Laststeuerung
Tarification et contrôle de charge Teil 11: Besondere Anforderungen
Partie 11: Prescriptions particulières an elektronische Rundsteuerempfänger
pour récepteurs électroniques de (IEC 62054-11:2004)
télécommande centralisée
(CEI 62054-11:2004)

This European Standard was approved by CENELEC on 2004-07-06. 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, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, 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

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62054-11:2004 E
---------------------- Page: 2 ----------------------
EN 62054-11:2004 - 2 -
Foreword

The text of document 13/1306/FDIS, future edition 1 of IEC 62054-11, prepared by IEC TC 13,

Equipment for electrical energy measurement and load control, was submitted to the IEC-CENELEC

parallel vote and was approved by CENELEC as EN 62054-11 on 2004-07-06.

This standard, in conjunction with EN 62052-21, supersedes EN 61037:1992 + A1:1996 + A2:1998.

This standard is to be used in conjunction with EN 62052-21 and the relevant parts of the EN 62059

series.
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) 2005-05-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-07-01

This European Standard has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association and covers essential requirements of

EC Directive(s). See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 62054-11:2004 was approved by CENELEC as a European

Standard without any modification.
Corrigendum to text of IEC 62054-11:2004
In subclause 7.6.4,

- replace "Field strength of the unmodulated signal: 10 V/m" by "At field strength of 10 V/m

(measured according to EN 61000-4-3)".

- replace "Field strength of the unmodulated signal: 30 V/m" by "At field strength of 30 V/m

(measured according to EN 61000-4-3)".
__________
---------------------- Page: 3 ----------------------
- 3 - EN 62054-11:2004
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
Publication Year Title EN/HD Year
IEC 62052-21 2004 Electricity metering equipment (AC) - EN 62052-21 -
General requirements, tests and test
conditions
Part 21: Tariff and load control
equipment
__________
Annex ZZ
(informative)
Coverage of Essential Requirements of EC Directives

This European Standard has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association and within its scope the standard covers all

relevant essential requirements as given in Article 4 of the EC Directive 89/336/EEC.

Compliance with this standard provides one means of conformity with the specified essential

requirements of the Directive[s] concerned.

WARNING: Other requirements and other EC Directives may be applicable to the products falling

within the scope of this standard.
__________
To be published.
---------------------- Page: 4 ----------------------
INTERNATIONAL IEC
STANDARD 62054-11
First edition
2004-05
Electricity metering (a.c.) –
Tariff and load control –
Part 11:
Particular requirements for
electronic ripple control receivers
 IEC 2004  Copyright - all rights reserved

No part of this publication may be reproduced or utilized in any form or by any means, electronic or

mechanical, including photocopying and microfilm, without permission in writing from the publisher.

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland

Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch

PRICE CODE
Commission Electrotechnique Internationale T
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
---------------------- Page: 5 ----------------------
– 2 – 62054-11  IEC:2004(E)
CONTENTS

FOREWORD...........................................................................................................................3

INTRODUCTION.....................................................................................................................5

1 Scope...............................................................................................................................6

2 Normative references.......................................................................................................6

3 Terms and definitions .......................................................................................................6

4 Standard electrical values ................................................................................................6

5 Mechanical requirements and tests ..................................................................................7

5.1 Operation status indicator.......................................................................................7

6 Climatic conditions, requirements and tests......................................................................7

7 Electrical requirements and tests......................................................................................7

7.1 Supply voltage.........................................................................................................7

7.2 Heating...................................................................................................................8

7.3 Insulation................................................................................................................8

7.4 Output elements......................................................................................................8

7.5 Functional requirements and tests – Control performance .......................................8

7.6 Electromagnetic compatibility (EMC) .....................................................................10

7.7 Radio interference suppression.............................................................................15

8 Test conditions and type test ..........................................................................................15

Annex A (normative) Harmonic levels for testing ripple control receivers..............................16

Annex B (normative) Selection of frequency for tests with harmonics...................................17

Annex C (normative) Combination of parameters for operation and non-operation tests.......18

Annex D (informative) Acceptance tests...............................................................................19

Annex E (informative) Code terms .......................................................................................20

Annex F (informative) Example of a test configuration for operation and non-operation

tests and for measurement of disturbance-limit curves..........................................................21

Annex G (informative) Values of the influence quantities for the different tests ....................22

Figure B.1 – Examples for selection of the frequency H ......................................................17

Figure B.2 – Frequency deviations for measurement of the disturbance-limit curves .............17

Figure F.1 − Test configuration .............................................................................................21

Table A.1 − Recommended values for 50 Hz networks.........................................................16

Table C.1 − Combination of parameters ................................................................................18

---------------------- Page: 6 ----------------------
62054-11  IEC:2004(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––––
ELECTRICITY METERING (AC) –
TARIFF AND LOAD CONTROL –
Part 11: Particular requirements for electronic ripple
control receivers
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62054-11 has been prepared by IEC technical committee 13:

Equipment for electrical energy measurement and load control. This standard, in conjunction

with IEC 62052-21, cancels and replaces IEC 61037:1990, Electricity metering – Tariff and

load control – Particular requirements for electronic ripple control receivers.

This standard is to be used in conjunction with IEC 62052-21 and the relevant parts of the

IEC 62059 series.
The text of this standard is based on the following documents:
FDIS Report on voting
13/1306/FDIS 13/1315/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.
---------------------- Page: 7 ----------------------
– 4 – 62054-11  IEC:2004(E)

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this publication will remain unchanged until

2013. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
---------------------- Page: 8 ----------------------
62054-11  IEC:2004(E) – 5 –
INTRODUCTION

This standard distinguishes between protective class I and protective class II equipment

The test levels are regarded as minimum values to guarantee the proper functioning of the

equipment under normal working conditions. For special applications, other test levels might

be necessary and should be agreed on between the user and the manufacturer.

Ripple control receivers are components of a system of remote control permitting the

simultaneous operation of a large number of receivers from a central point. The signal

generally used for this purpose is an audio-frequency voltage superimposed on the mains

frequency and coded in the form of pulses, which can provide a multiplicity of control

functions. Other types of signals, such as frequency modulation, deformation of the mains

frequency, etc. may also be used. These signals are propagated through the electricity supply

network, from the injection point to the receiver sites.

Some characteristics of such systems, for example, the value of the frequency or the method

of coding, are not standardized here.

To facilitate the application of this standard the following principles should be applied.

1) The requirements of this standard are not limiting. If it is absolutely unavoidable, a user

can add additional technical requirements in his specification.

The technical requirements and tests relate to the general functioning of the receiver. The

method of operation of the functional elements is not specified. These requirements and

tests may, however, be the subject of additional technical agreements.

2) Ripple control systems are auxiliary equipment for network operation. Their design is

determined by the network characteristics and other factors. At the present time rapid

development of power electronic equipment is leading to a parallel increase in the amount

of harmonic distortion in the supply voltage. The harmonic levels indicated in this standard

take account of this development. They are not to be considered as values that could be

regarded as permissible on the network but as recommended values for designing and

testing receivers. These recommended levels could be adapted to particular
characteristics of networks under consideration.

Receivers designed for use with transmitters already in operation and having a control

frequency equal, or very close, to a harmonic, need not conform to the whole of the

requirements of this standard.

For information, the relevant parts of IEC 62052, IEC 62054 and IEC 62059 are listed below.

IEC 62052-21 Electricity metering equipment (a.c.) – General requirements, tests and test

conditions – Part 21: Tariff and load control equipment
(Replaces the general requirements of IEC 61037 and IEC 61038.)

IEC 62054-11 Electricity metering – Tariff and load control – Part 11: Particular requirements

for electronic ripple control receivers
(Replaces the particular requirements of IEC 61037.)

IEC 62054-21 Electricity metering – Tariff and load control – Part 21: Particular requirements

for time switches
(Replaces the particular requirements of IEC 61038.)

IEC 62059-11 Electricity metering equipment – Dependability – Part 11: General concepts

IEC 62059-21 Electricity metering equipment – Dependability – Part 21: Collection of meter

dependability data from the field

IEC 62059-41 Electricity metering equipment – Dependability – Part 41: Reliability prediction

———————
To be published.
---------------------- Page: 9 ----------------------
– 6 – 62054-11  IEC:2004(E)
ELECTRICITY METERING (AC) –
TARIFF AND LOAD CONTROL –
Part 11: Particular requirements for electronic ripple
control receivers
1 Scope

This part of IEC 62054 specifies particular requirements for the type test of newly

manufactured indoor electronic ripple control receivers for the reception and interpretation of

pulses of a single audio frequency superimposed on the voltage of the electricity distribution

network and for the execution of the corresponding switching operations. In this system the

mains frequency is generally used to synchronize the transmitter and receivers. Neither the

control frequency nor the encoding are standardized in this standard.

This standard gives no requirements for constructional details internal to the receiver.

In the case where ripple control functionality is integrated in multifunction electricity metering

equipment, the relevant parts of this standard apply.

This standard does not cover the acceptance tests and the conformity tests. Nevertheless, an

example of what could be an acceptance test is given in Annex D.
The dependability aspect is covered by the documents of the IEC 62059 series.

When using this standard in conjunction with IEC 62052-21, the requirements of this standard

take precedence over those of IEC 62052-21 with regard to any item already covered in it.

2 Normative references

The following referenced documents are indispensable for the application of this document.

For dated references, only the edition cited applies. For undated references, the latest edition

of the referenced document (including any amendments) applies.

IEC 62052-21, Electricity metering equipment (a.c.) – General requirements, tests and test

conditions – Part 21: Tariff and load control equipment
3 Terms and definitions
For the purposes of this document, the definitions of IEC 62052-21 apply.
4 Standard electrical values
The values given in IEC 62052-21 apply.
———————
To be published
---------------------- Page: 10 ----------------------
62054-11  IEC:2004(E) – 7 –
5 Mechanical requirements and tests
The requirements and tests specified in IEC 62052-21 and the following apply.
5.1 Operation status indicator

The receiver shall have an operation status indicator to indicate the quiescent state, the

message reception or the command execution.
6 Climatic conditions, requirements and tests
The conditions, requirements and tests specified in IEC 62052-21 apply.
7 Electrical requirements and tests
The requirements and tests specified in IEC 62052-21 and the following apply.
7.1 Supply voltage
7.1.1 Supply voltage range
The values specified in IEC 62052-21 apply.
7.1.2 Supply frequency range
IEC 62052-21 applies.
7.1.3 Power consumption
IEC 62052-21 applies.
7.1.4 Voltage dips and short interruptions
See 7.6.8.
7.1.5 Long interruptions of supply voltage
7.1.5.1 Requirements

If the position of the output elements is controlled only by the information received from the

decoding element – the ripple control messages – the output elements shall not change their

position at an interruption of the supply voltage, the length of which is to be agreed on

between user and supplier, or shall take up the pre-determined position within 5 s after the

restoration of the nominal supply voltage.

If the position of the output elements is also affected by the timers of the ripple control

receiver, then the output elements shall take up their position according to the timer

programme.
7.1.5.2 Test of effect of a long interruption of the supply voltage

The test consists of verifying that, after interrupting the supply voltage for an agreed length of

time and when the supply is restored to the receiver, the output elements retain or return to

the position that they had before the interruption or that they take up the predetermined

position agreed between the user and the supplier.
---------------------- Page: 11 ----------------------
– 8 – 62054-11  IEC:2004(E)

This test shall be carried out for all possible positions of the output switches.

The restoration of voltage shall be made with switching devices free from bounce.

7.1.6 Operation reserve
7.1.6.1 Requirements

If the ripple control receiver is equipped with a back-up power supply, IEC 62052-21 applies.

7.1.6.2 Tests

The test consists of verifying that, after interrupting the supply for a time period of 36 h, the

internal timers of the ripple control receiver maintain their value and when the supply is

restored to the receiver, the output elements take up the position according to the timer

programme.
7.1.7 Life of back-up power supply

If the ripple control receiver is equipped with a back-up power supply, IEC 62052-21 applies.

7.1.8 Back up power supply replacement

If the ripple control receiver is equipped with a back-up power supply, IEC 62052-21 applies.

7.2 Heating
IEC 62052-21 applies.
7.3 Insulation
IEC 62052-21 applies.
7.4 Output elements
IEC 62052-21 applies.
7.5 Functional requirements and tests – Control performance
7.5.1 General test conditions

Place the ripple control receiver under test in its normal operating position and, if necessary,

in a climatic chamber and supply it from an apparatus free of short interruptions and voltage

dips. Unless otherwise indicated, the reference conditions shown in Annex B of IEC 62052-21

shall be maintained.

The sources providing the neighbouring harmonics shall conform to the requirements of

7. 6. 12. 2. 1.
7.5.2 Operate voltage
7.5.2.1 Requirements

The operate voltage shall be agreed upon case by case taking into account the characteristics

of the ripple control system, the supply network, the manufacturing tolerances and the

variations of the influence quantities:
– supply voltage;
– supply frequency;
---------------------- Page: 12 ----------------------
62054-11  IEC:2004(E) – 9 –
– temperature;
– harmonics/interharmonics;
– control frequency.
7.5.2.2 Test of operation

The correct operation of the receiver shall be tested successively for all the combinations of

parameters, which are shown in Table C.1 in accordance with the requirements of 7.6.11, the

control frequency varying within limits agreed between the user and the supplier.

For all these combinations, the receiver tested shall operate faultlessly and carry out the

commands corresponding to messages transmitted according to their codes, both at the

operate voltage U and at the maximum control voltage U .
max

NOTE It is assumed that if the ripple control receiver passes the test both at U and U , it will work correctly

f max
between these limits.
7.5.3 Non-operate voltage
7.5.3.1 Requirements

The non-operate voltage shall be agreed upon case by case taking into account the

characteristics of the ripple control system, the supply network, the manufacturing tolerances

and the variations of the influence quantities:
– supply voltage;
– supply frequency;
– temperature;
– harmonics/interharmonics;
– control frequency.
7.5.3.2 Test of non-operation

For this test, apply all the combinations of parameters given in Annex C in accordance with

the requirements of 7.6.11, the control frequency varying within the limits agreed between the

user and the supplier.

For all these combinations, the receiver tested shall not switch in response to a correctly

coded message at the non-operate voltage U .
7.5.4 Maximum control voltage

For control frequencies below 250 Hz, the maximum voltage shall be at least 8 times and, for

frequencies above 750 Hz, at least 15 times greater than the operate voltage. For

intermediate frequencies, a linear interpolation shall be made according to the following

formula:
 ( f − 250) × 7
 
U = U 8 +
max f
 
500
 
where f is expressed in hertz.
---------------------- Page: 13 ----------------------
– 10 – 62054-11  IEC:2004(E)
7.5.5 Tolerance on the message
7.5.5.1 Requirements

The receiver shall operate correctly up to the specific timing tolerance limits of the code. The

tolerances and the test shall be agreed between the user and the supplier.
7.5.5.2 Test
This test shall be adapted and agreed between the user and the supplier.
7.6 Electromagnetic compatibility (EMC)
The requirements and values defined in IEC 62052-21 and the following apply.
7.6.1 Immunity to electromagnetic disturbances
IEC 62052-21 applies.
7.6.2 General test conditions
IEC 62052-21 applies.
7.6.3 Test of immunity to electrostatic discharges
In addition to IEC 62052-21, the following applies.
The application of the electrostatic discharge shall not affect the receiver:
– in a quiescent state, the receiver shall not start;

– during a transmission cycle, the output elements shall operate correctly, according to the

commands of the message.
7.6.4 Test of immunity to electromagnetic r.f. fields
In addition to IEC 62052-21, the following applies.

• Field strength of the unmodulated signal: 10 V/m: the application of the electromagnetic

r.f. fields shall not affect the receiver

– in a quiescent state, the receiver shall not start and the timers must not be disturbed;

– during a transmission cycle, the output elements shall operate correctly according to

the commands of the message, and the internal timers, if any.

• Field strength of the unmodulated signal: 30 V/m: during the test, a temporary degradation

or loss of function or performance is acceptable.

If the r.f. field is applied while the receiver is in a quiescent state, it shall be verified that the

receiver does not start as an effect of the r.f. field. For this purpose, 3 s after removing the r.f.

field, a message is transmitted with operate voltage U . The output elements shall operate

correctly according to the commands of the message.

If the r.f. field is applied during a transmission cycle, it is accepted that no operation is carried

out.

The application of the r.f. field shall not affect the internal timers. It shall be verified that, after

the test, the operations carried out on the basis of such internal timers are correctly executed.

---------------------- Page: 14 ----------------------
62054-11  IEC:2004(E) – 11 –
7.6.5 Fast transient burst test
In addition to IEC 62052-21, the following applies.

The receiver shall be tested in a quiescent state and during transmission cycles, each time for

1 min and each time for both positive and negative polarities.

If the bursts are applied while the receiver is in a quiescent state, it shall be verified that the

receiver does not start as an effect of the bursts. For this purpose, 3 s after the bursts have

been applied a message is transmitted with operate voltage U . The output elements shall

operate correctly according to the commands of the message.

If the bursts are applied in such a way that bursts occur during a transmission cycle, it shall

be verified that bursts did not impede the operation capability of the receiver. For this

purpose, the receiver is started by a message with the operate voltage U . It shall be verified

that, despite the application of the bursts, no wrong operation occurs. In cases where the

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