IEC/TS 61000-6-5

Electromagnetic compatibility (EMC) - Part 6-5: Generic standards - Immunity for power station and substation environments

This technical specification sets immunity requirements for apparatus intended for use by Electricity Utilities in the generation, transmission and distribution of electricity and related telecommunication systems.[
]The locations covered are the power stations and the substations where apparatus of Electricity Utilities are installed.[
]Immunity requirements are given for the frequency range 0 Hz to 400 GHz, but only in respect of electromagnetic phenomena for which detailed test procedures, test instrumentation and test set-up are given in existing IEC basic standards.[
]The immunity requirements are suitable for satisfying the particular needs related to the functions and tasks of equipment and systems, for which reliable operation is required under actual electromagnetic conditions; in this respect, this technical specification establishes performance criteria for the different functional requirements.

Compatibilité électromagnétique (CEM) - Partie 6-5: Normes génériques - Immunité pour les environnements de centrales électriques et de postes

Cette spécification technique établit les prescriptions en matière d'immunité des appareils destinés à être utilisés par les compagnies d'électricité pour la production, le transport et la distribution d'électricité, ainsi que des systèmes de télécommunication associés.[
]Les lieux couverts sont les centrales électriques et les postes où sont installés des appareils utilisés par les compagnies d'électricité.[
]Des prescriptions d'immunité sont données pour la gamme des fréquences comprise entre 0 Hz et 400 GHz, mais seulement pour les phénomènes électromagnétiques pour lesquels des procédures, équipements et montages d'essai détaillés sont donnés dans les normes fondamentales CEI existantes.[
]Ces prescriptions d'immunité conviennent pour répondre aux besoins particuliers se rapportant aux fonctions et tâches dévolues aux appareils et systèmes pour lesquels un fonctionnement fiable est requis dans les conditions électromagnétiques réelles; dans cet esprit, cette spécification technique établit des critères de performance pour les différentes prescriptions fonctionnelles.

Electromagnetic compatibility (EMC) - Part 6-5: Generic standards – Immunity for power station and substation environments

General Information

• Status: Not Published
• ICS: 33.100.20 - Immunity
• Technical Committee: TC 77 - Electromagnetic compatibility
• Current Stage: PPUB - Publication issued
• Start Date: 24-Jul-2001
• Ref Project: SIST-TS IEC/TS 61000-6-5:2004 - Electromagnetic compatibility (EMC) - Part 6-5: Generic standards - Immunity for power station and substation environments

Standards Content (Sample)

SLOVENSKI SIST-TS IEC/TS 61000-6-5:2004

STANDARD
april 2004
Electromagnetic compatibility (EMC) - Part 6-5: Generic standards – Immunity for
power station and substation environments
ICS 33.100.20 Referenčna številka
SIST-TS IEC/TS 61000-6-5:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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SPÉCIFICATION
CEI
TECHNIQUE IEC
TS 61000-6-5
TECHNICAL
Première édition
SPECIFICATION
First edition
2001-07
Compatibilité électromagnétique (CEM) –
Partie 6-5:
Normes génériques –
Immunité pour les environnements de
centrales électriques et de postes
Electromagnetic compatibility (EMC) –
Part 6-5:
Generic standards –
Immunity for power station and
substation environments
© IEC 2001 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
V
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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TS 61000-6-5 © IEC:2001 – 3 –
CONTENTS
FOREWORD . 5
INTRODUCTION .9
1 Scope . 13
2 Normative references . 13
3 General. 17
4 Definitions. 17
5 Electromagnetic environment . 23
6 Immunity requirements and type tests. 23
7 Conditions during testing . 25
8 Performance criteria. 27
9 Compliance documentation . 27
Annex A (informative) Information on the electromagnetic phenomena, typical sources
and causes. 49
Annex B (informative) Overview of the effect of the electromagnetic phenomena on the
functions of apparatus and systems . 51
Bibliography . 61
Figure 1 – Ports of the apparatus. 19
Figure 2 – Examples of power ports . 21
Figure 3 – Example of power station and substation: selection of the specifications for
apparatus and related connections. 31
Figure 4 – Example of air-insulated substation (AIS): selection of the specifications for
apparatus and related connections. 33
Table 1 – Immunity specifications – Enclosure port . 35
Table 2 – Immunity specifications – Signal ports . 37
Table 3 – Immunity specifications – Low voltage a.c. input power ports and low voltage
a.c. output power ports .39
Table 4 – Immunity specifications – Low voltage d.c. input power ports and low voltage
d.c. output power ports .41
Table 5 – Immunity specifications – Functional earth port. 43
Table 6 – Characterization of the electromagnetic phenomena . 45
Table 7 – Performance criteria for the most relevant functions (in descending order of
criticality). 47

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TS 61000-6-5 © IEC:2001 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 6-5: Generic standards – Immunity for power station
and substation environments
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this technical specification may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In excep-
tional circumstances, a technical committee may propose the publication of a technical
specification when
 the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
 the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
IEC 61000-6-5, which is a technical specification, has been prepared by technical com-
mittee 77: Electromagnetic compatibility.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
77/227/CDV 77/232/RVC
Full information on the voting for the approval of this technical specification can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annexes A and B are for information only.

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TS 61000-6-5 © IEC:2001 – 7 –
The committee has decided that the contents of this publication will remain unchanged until
2005. At this date, the publication will be
 transformed into an International Standard;
 reconfirmed;
 withdrawn;
 replaced by a revised edition, or
 amended.

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TS 61000-6-5 © IEC:2001 – 9 –
INTRODUCTION
IEC 61000 series is published in separate parts, according to the following structure:
Part 1: General
General considerations (introduction, fundamental principles)
Definitions, terminology
Part 2: Environment
Description of the environment
Classification of the environment
Compatibility levels
Part 3: Limits
Emission limits
Immunity limits (in so far as they do not fall under the responsibility of the product
committees)
Part 4: Testing and measurement techniques
Measurement techniques
Testing techniques
Part 5: Installation and mitigation guidelines
Installation guidelines
Mitigation methods and devices
Part 6: Generic standards
Part 9: Miscellaneous
Each part is further subdivided into sections which are to be published either as International
Standards or as technical specifications or technical reports, some of which have already been
published as sections. Others will be published with the part number followed by a dash and a
second number identifying the subdivision (example: 61000-6-1).
These standards, specifications and reports will be published in chronological order and
numbered accordingly.
This technical specification deals with the electromagnetic compatibility (EMC) of apparatus
used by Electricity Utilities in the generation, transmission and distribution of electricity and
related telecommunication systems. It is intended to assist Electricity Utilities in the
procurement of electronic equipment and systems.
Several EMC product standards have been published by technical committees dealing with
different application areas relevant for Electricity Utilities: switchgear and controlgear (TC 17),
power system control and associated communications (TC 57), industrial-process
measurement and control – system aspects (SC 65A), measuring relays and protection
equipment (TC 95), etc. The requirements specified in these product standards represent only
a part of the electromagnetic environment typical of power stations and substations.

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TS 61000-6-5 © IEC:2001 – 11 –
Likewise, the generic immunity standard for industrial environments prepared by IEC and
CENELEC is considered by the Electricity Utilities to be not sufficient to cover the relevant
electromagnetic phenomena of the electrical plants and to give detailed acceptance criteria for
testing apparatus.
In the past, the different Utilities have prepared their own specifications. Unfortunately, these
specifications are not homogeneous; therefore the equipment manufacturers may have to apply
different tests or test levels, with consequent increase of the costs of the equipment.
Based on a common action among many Utilities, in 1994 the UNIPEDE set up a Task Force
within the Standardisation Specific Committee with the task to define unified EMC requirements
for automation and control apparatus used in power stations and substations.
As a result of this activity, the UNIPEDE Guide “Automation and control apparatus for
generating stations and substations – Electromagnetic Compatibility – Immunity
Requirements“, was published in 1995 with the reference code 23005Ren9523.
This technical specification is based on the UNIPEDE Guide above, and is intended to be
considered as a supplement to the Generic Immunity Standards, with additional tests and
acceptance criteria relevant to the special environmental conditions encountered in power
stations and substations. This technical specification should be considered as a basic
document for the preparation or revision of any EMC standard refering to specific products
used by Electrical Utilities in power stations and substations.
The review of this technical specification will be carried out not later than three years after its
publication, with the options of either extension for a further three years or conversion to an
International Standard or withdrawal.

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TS 61000-6-5 © IEC:2001 – 13 –
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 6-5: Generic standards – Immunity for power station
and substation environments
1 Scope
This technical specification sets immunity requirements for apparatus intended for use by
Electricity Utilities in the generation, transmission and distribution of electricity and related
telecommunication systems.
The locations covered are the power stations and the substations where apparatus of
Electricity Utilities are installed.
Immunity requirements are given for the frequency range 0 Hz to 400 GHz, but only in respect
of electromagnetic phenomena for which detailed test procedures, test instrumentation and test
set-up are given in existing IEC basic standards.
The immunity requirements are suitable for satisfying the particular needs related to the
functions and tasks of equipment and systems, for which reliable operation is required under
actual electromagnetic conditions; in this respect, this technical specification establishes
performance criteria for the different functional requirements.
Different requirements are given for equipment to be installed in power stations and
substations. In special cases, situations will arise where the level of electromagnetic
disturbances may exceed the levels specified in this technical specification; in these instances,
special mitigation measures should be adopted.
Non-electronic high voltage and power equipment (primary system) are excluded from the
scope of this technical specification.
This technical specification does not specify safety requirements for equipment, such as
protection against shock, insulation co-ordination and related dielectric tests. Nevertheless,
these tests are considered as a precondition to the immunity tests.
Emission requirements are not within the scope of this technical specification and are covered
by relevant product or product-family standards (e.g. IEC 60439-1, IEC 60870-2-1, etc.). Where
no dedicated product or product-family standard exists, the generic standard IEC 61000-6-4
applies.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61000. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However parties to agreements
based on this part of IEC 61000 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.

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TS 61000-6-5 © IEC:2001 – 15 –
IEC 60050(161), International Electrotechnical Vocabulary (IEV) – Chapter 161: Electromagnetic
compatibility
IEC 61000-4-1, Electromagnetic compatibility (EMC) – Part 4-1: Testing and measurement
techniques – Overview of 61000-4 series
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 2: Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 3: Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 4: Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 5: Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 6: Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 8: Power frequency magnetic field immunity test
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 11: Voltage dips, short interruptions and voltage variations immunity tests
IEC 61000-4-12, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 12: Oscillatory waves immunity test
IEC 61000-4-16, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 16: Test for immunity to conducted, common mode disturbances in the
frequency range 0 Hz to 150 kHz
IEC 61000-4-17, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 17: Ripple on d.c. input power port immunity test
IEC 61000-4-29, Electromagnetic compatibility (EMC) – Part 4-29: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations on d.c. input power port
immunity tests
IEC 61000-6-4, Electromagnetic compatibility (EMC) – Part 6: Generic standards – Section 4:
Emission standard for industrial environments
CISPR 24, Information technology equipment – Immunity characteristics – Limits and methods of
measurement

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TS 61000-6-5 © IEC:2001 – 17 –
3 General
The apparatus of the Electricity Utilities are installed and implemented within power stations
and substations according to the rules given by the manufacturers. It is essential that these
apparatus operate according to the specified performances when exposed to the variety of
electromagnetic phenomena, conducted and radiated, typical of these installations.
A survey of these electromagnetic phenomena is given in the IEC 61000-2 series and in
IEC 61000-4-1. Additional information on the typical sources and causes of electromagnetic
disturbances is given in annex A. Typical values of electromagnetic phenomena observed in
high voltage substations and power stations can be found in the bibliography.
The immunity specifications are given on a port-by-port basis, and selected according to the
location, with differentiated levels based on the experienced result of reliable operation of the
equipment concerned.
Guidance for compliance documentation is given in clause 9 in order to make easier the
presentation of the test results by the manufacturers and their acceptance by the Electricity
Utilities.
4 Definitions
The definitions related to EMC and to relevant electromagnetic phenomena may be found in
IEC 60050(161) and in other IEC publications.
For the purpose of this technical specification, the following definitions apply.
4.1
apparatus
equipment
finished product with an intrinsic function for final user
NOTE "Apparatus" is defined as covering all electrical and electronic apparatus and equipment which contain
electrical and/or electronic components.
4.2
system
several items of apparatus combined to fulfil a specific task as a single functional unit
4.3
installation
several combined items of apparatus or systems put together at a given place to fulfil a specific
task
4.4
port
particular interface of the specified apparatus with the external electromagnetic environment
(see figure 1)

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TS 61000-6-5 © IEC:2001 – 19 –
Enclosure port
Power ports Signal ports
Local connections
Field
CA input/output
connections
APPARATUS
To HV equipment
CC input/output
Telecommunication
Functional
earth port
IEC  1154/01
Figure 1 – Ports of the apparatus
4.5
enclosure port
physical boundary of the apparatus through which electromagnetic fields may radiate or
impinge on
4.6
cable port
port at which a conductor or a cable is connected to the apparatus (power, signal and
functional earth port)
4.6.1
power port
port for the power supplied to or from an apparatus
4.6.1.1
power supply input, ps in
− for apparatus assembled in one cabinet: the cabinet power port is considered as the power
port of any assembled part;
− for peripheral units assembled in one cabinet: the peripheral units of the apparatus may be
powered by the apparatus or by an external source
4.6.1.2
power supply output, ps out
output from apparatus, e.g. power converters

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TS 61000-6-5 © IEC:2001 – 21 –
Apparatus assembled
in one cabinet
ps in ps out ps out
Peripheral
Power supply
ps unit
unit
apparatus
ps in ps in
Unit 1
Unit 2
Unit 3
ps in Peripheral (signal)
unit
ps in: input power port
Unit 4
ps out: output power port
Internal
ps bus
IEC  1155/01
Figure 2 – Examples of power ports
4.6.2
signal port
port which serves as local connection, field connection, connection with HV equipment and/or
connection with telecommunication equipment
4.6.2.1
local connections
relate to cables running in mild or moderate electromagnetic environments which, according to
the functional and installation specifications, satisfy one of the following conditions:
– are not directly connected to the process equipment;
– are of relatively short length, e.g. up to some tens of metres;
– are related to communication within the same building.
Examples of this category are:
– connections from control desk to units located in equipment room;
– interconnecting cables between apparatus of control room or control building
4.6.2.2
field connections
relate to cables which are intended to be connected to process equipment of the plant, within
the same earth network.
Examples of this category are:
− connections from control room or equipment room to the field of power stations and HV
substations;
−
connections to low-voltage power equipment;
− connections within the relay house or telecommunication house of HV substations, where
no special mitigation measures are adopted (e.g. shielding);
− field bus
NOTE Those cable ports of process instrumentation which are self-powered through the signal conductors
(e.g. 4-20 mA) are considered as signal ports.

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TS 61000-6-5 © IEC:2001 – 23 –
4.6.2.3
connections to HV equipment
relate to the connections from control equipment to HV equipment like circuit breakers, current
transformers, voltage transformers, power line carrier systems
4.6.2.4
telecommunication connections
relate to communication cables which reach the border of the earth network of the plant for
interfacing with a telecommunication network or remote equipment without any particular
insulation barrier
4.6.3
functional earth port
cable port other than signal or power port, intended for connection to earth for purposes other
than electrical safety
5 Electromagnetic environment
The typical locations covered by this technical specification are power stations, and medium
voltage (MV) and high-voltage (HV) substations (air insulated (AIS) and gas insulated (GIS)
substations).
For the purpose of the specifications given in this technical specification, the term "HV" is
taken to mean extra high voltage and high voltage of 36,5 kV and above. A different limit
between MV and HV can be agreed upon between the Electricity Utility and the manufacturer.
In addition to the mentioned electrical plants, Electricity Utilities can install apparatus in control
centres, radio repeaters, or low voltage distribution points in industrial, commercial or
residential areas. These locations are covered by other generic standards or product
standards.
In some cases, the Utilities take special mitigation measures (e.g. use of special cabling,
shielding of some areas, etc.) in order to create a "protected" environment and to reduce the
immunity requirements accordingly. This allows the Utility to use equipment not meeting the
specifications of this technical specification.
In power stations and substations, shielded and unshielded cables are used for connecting
equipment. In case of shielded cables, the shields are locally earthed according to the rules
related to the type of signal involved, e.g. low level, control, etc. (see bibliography).
6 Immunity requirements and type tests
The immunity requirements and type tests specified in the following are based on the actual
electromagnetic environment, considering the electromagnetic phenomena outlined in annex A.
They are given on a port-by-port basis, according to tables 1 to 5.
The requirements for apparatus of power stations and substations are based on figure 3 and
figure 4.
The requirements for the enclosure, the power supply and functional earth ports are
established according to the location concerned. It is assumed that the power supply source is
common to all apparatus therein installed, without special EMC provisions.

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TS 61000-6-5 © IEC:2001 – 25 –
The requirements for the signal ports are established according to the type of connections.
In the following figures and tables, the different locations are identified by a capital letter in a
square, while the type of connections are identified by a lower-case letter in a circle.
Locations:
G : power stations and MV substations;
H : HV substations;
P : "protected" areas, if any.
Signal connections:
: local connections;
f : field connections;
h : connections to HV equipment;
t : telecommunication;
p : connections within a "protected" area, if any.
The tests will be conducted in a well-defined and reproducible manner, as given by the relevant
basic standards referred to in tables 1 to 5. The content of these basic standards is not
repeated here; however additional information for the practical application of the tests are
given in this specification.
The tests shall be performed as type tests and carried out one at a time, as a single test.
The immunity requirements are related to conducted and radiated electromagnetic phenomena
at low and high frequencies; they may be continuous, single or repetitive transient phenomena,
with high and low occurrence, as given in table 6.
Equipment installed in "protected" areas, without direct connections to other areas, does not
need to comply with the immunity specifications of this technical specification, but is subjected
to the relevant generic or product standards.
7 Conditions during testing
The equipment under test (EUT) shall be tested in the most sensitive operating mode
consistent with normal applications. The configuration of the test sample shall be such that
maximum susceptibility, consistent with typical applications and installation practice, is
achieved.
If it is not possible to test every function of the apparatus, the most critical mode of operation
shall be selected.
According to the basic standards, several ports may be simultaneously subjected to the test
voltage.

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TS 61000-6-5 © IEC:2001 – 27 –
If the apparatus is part of a system, or can be connected to auxiliary equipment, then the
apparatus shall be tested while connected to the minimum representative configuration of
auxiliary equipment necessary to exercise the ports.
If the apparatus has a large number of similar ports, then a sufficient number shall be selected
to simulate actual operating conditions and to ensure that all the different types of termination
are covered.
In cases where a manufacturer's specification requires, in the user manual, protection devices
or measures, the tests shall be applied with these protection devices or measures in place.
In particular, when the product specification requires shielded cables for ports dedicated to
local connections, the test shall be performed with the shields bonded to the equipment
according to the manufacturer's specifications.
These rules apply also to low level signal ports dedicated to data bus connections (e.g. field
bus), which, according to the product specifications, need shielded cables.
The tests shall be carried out in one typical condition within the operating ranges of
temperature, humidity and pressure specified for the product and at the rated supply voltage,
unless otherwise indicated in the basic standard.
In particular and justified cases, where it is not possible to carry out type tests in a laboratory
due to the physical dimensions of the apparatus or system involved, in situ EMC investigations
could be helpful. The investigations should be carried out with proper procedures in order not
to affect the reliability of the apparatus.
8 Performance criteria
The performance criteria are closely related to the nature of the electromagnetic phenomena
(types and occurrence) as given in table 6 and to the applicable representative functions of the
equipment concerned.
The performance criteria are given in table 7.
If a system performs sev
...