PWI 47A-3

SLOVENSKI SIST-TP IEC/TR3 61000-5-
1:2004
STANDARD
april 2004
Electromagnetic compatibility (EMC) - Part 5: Installation and mitigation guidelines -
Section 1: General considerations - Basic EMC publication
ICS 33.100.01 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

RAPPORT
CEI
TECHNIQUE – TYPE 3
IEC
1000-5-1
TECHNICAL
Première édition
REPORT – TYPE 3
First edition
1996-12
Compatibilité électromagnétique (CEM) –
Partie 5:
Guides d’installation et d’atténuation –
Section 1: Considérations générales
Publication fondamental en CEM
Electromagnetic compatibility (EMC) –
Part 5:
Installation and mitigation guidelines –
Section 1: General considerations
Basic EMC publication
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1000-5-1 © IEC:1996 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION. 9
Clause
1 Scope . 11
2 Reference documents . 11
3 Definitions. 13
4 General considerations on electromagnetic compatibility (EMC) of installations. 15
4.1 Aim of proper installation and design. 19
4.2 Emitter, coupling, susceptor . 19
4.3 Overview of EM disturbances . 21
4.4 EMC and safety (insulation) installation requirements. 25
4.5 Selection/characterization of EM environments. 25
4.6 Immunity of equipment . 25
4.7 Mitigation methods: specification and evaluation. 25
Figures
1 Electromagnetic influence representation. 19
2 Representation of equipment ports interfacing with the electromagnetic
environment . 27
3 Principle of global protection by single barrier. 29
4 Principle of global protection by multiple barriers. 29
5 Principle of distributed protection. 31
Annexes
A Examples of system protection . 35
B Mitigation of low-frequency disturbances. 39
C Example of an installation check-list . 43
D Bibliography. 61

1000-5-1 © IEC:1996 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 5: Installation and mitigation guidelines –
Section 1: General considerations
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 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 International Standard 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
exceptional circumstances, a technical committee may propose the publication of a technical
report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an
International Standard, despite repeated efforts;
• type 2, when 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;
• type 3, when a technical committee has collected data of a different kind from that
which is normally published as an International Standard, for example "state of the art".
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
1000-5-1 © IEC:1996 – 7 –
IEC 1000-5-1, which is a technical report of type 3, has been prepared by subcommittee 77B:
High-frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility.
The text of this technical report is based on the following documents:
Committee draft Report on voting
77B/155/CDV 77B/177/RVC
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
This document is issued in the type 3 technical report series of publications (according to
G.3.2.3 of part 1 of the IEC/ISO Directives) as a purely informative document.
This document is not to be regarded as an International Standard.

1000-5-1 © IEC:1996 – 9 –
INTRODUCTION
IEC 1000-5 is a part of the IEC 1000 series, 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 reports.
These sections of IEC 1000-5 will be published in chronological order and numbered
accordingly.
1000-5-1 © IEC:1996 – 11 –
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 5: Installation and mitigation guidelines –
Section 1: General considerations
1 Scope
This technical report covers general considerations and guidelines on mitigation methods
aimed at ensuring electromagnetic compatibility (EMC) among electrical and electronic
apparatus or systems used in industrial, commercial, and residential installations. This
technical report is intended for use by installers and users, and to some extent manufacturers,
of sensitive electrical or electronic installations and systems, and equipment with high emission
levels that could degrade the overall electromagnetic (EM) environment. It applies primarily to
new installations, but where economically feasible, it may be applied to extensions or
modifications to existing facilities.
Specific topics, such as recommendations on the design and implementation of the earthing
system, including the earth electrode and the earth network, the design and implementation of
bonding apparatus or systems to earth or to the earth network, the selection and installation of
appropriate cables, and the design and implementation mitigation means involving shielded
enclosures, high-frequency filters, isolating transformers, surge-protective devices, etc. will be
addressed in other sections of part 5.
The recommendations presented in this report address the EMC concerns of the installation,
not the safety aspects of the installation nor the efficient transportation of power within the
installation. Nevertheless, these two prime objectives are taken into consideration in the
recommendations concerning EMC. These two primary objectives can be implemented
concurrently for enhanced EMC of the installed sensitive apparatus or systems without conflict
by applying the recommended practices presented in this report and the relevant safety
requirements such as those of IEC 364. As each installation is unique, it is the responsibility of
the designer and the installer to select the relevant recommendations most appropriate to a
particular installation.
2 Reference documents
IEC 50(161): 1990, International Electrotechnical Vocabulary (IEV) – Chapter 161: Electromagnetic
compatibility
IEC 50(826): 1982, International Electrotechnical Vocabulary (IEV) – Chapter 826: Electrical
installations of buildings
IEC 1000-1-1: 1992, Electromagnetic compatibility (EMC) – Part 1: General – Section 1: Application
and interpretation of fundamental definitions and terms
IEC 1000-2-5: 1995, Electromagnetic compatibility (EMC) – Part 2: Environment – Section 5:
Classification of electromagnetic environments – Basic EMC publication
IEC 1000-4: Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques
IEC 1024-1: 1990, Protection of structures against lightning – Part 1: General principles

1000-5-1 © IEC:1996 – 13 –
3 Definitions
For the purpose of this technical report, the definitions given in IEC 50(161) and IEC 50(826)
apply, as well as the definitions listed below.
A list of acronyms is provided at the end of this clause.
3.1 bonding: The act of connecting together exposed conductive parts and extraneous
conductive parts of apparatus, systems, or installations that are at essentially the same
potential. [new, WG2]
3.2 disturbance level: The level of a given electromagnetic disturbance existing at a given
location, which results from all contributing disturbance sources. [IEV 161-03-09A]
3.3 earth; ground (USA): The conductive mass of the earth, whose electric potential at any
point is conventionally taken as equal to zero. [IEV 826-04-01]
3.4 earth electrode: A conductive part or a group of conductive parts in intimate contact with
and providing an electrical connection with earth. [IEV 826-04-02]
3.5 earthing network: Conductors of the earthing system, not in contact with the soil,
connecting apparatus, systems, or installations to the earth electrode or to other means of
earthing. [new, WG2]
3.6 earthing: The act of connecting exposed conductive parts or other selected conductors of
apparatus, systems or installations to the earth electrode or earth arrangement. [new, WG2]
3.7 earthing system: The three-dimensional electrical circuit which performs the earthing.
NOTE – The earthing system includes two parts: the earth electrode and the earth network. [new, WG2]
3.8 (electromagnetic) compatibility level: The specified disturbance level at which an
acceptable, high probability of electromagnetic compatibility should exist. [IEV 161-03-10]
3.9 facility: Something (like a hospital, factory, machinery, etc.) that is built, constructed,
installed or established to perform some particular function or to serve or facilitate some
particular end. [new WG2)]
3.10 immunity margin: The ratio of the immunity limit to the electromagnetic compatibility
level. [IEV 161-03-16]
1000-5-1 © IEC:1996 – 15 –
3.11 immunity level: The
...