IEC TS 62597:2011

Measurement procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure

IEC/TS 62597:2011 summarizes measurement and simulation/calculation procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure (also for human beings bearing active implantable medical devices). Applies to apparatus, systems and fixed installations which are intended for use in the railway environment. The frequency range covered is 0 Hz to 300 GHz.

Procédures de mesure des niveaux de champ magnétique générés par les appareils électriques et électroniques dans l'environnement ferroviaire en regard de l'exposition humaine

La CEI/TS 62597:2011 récapitule les procédures de simulation/ de calcul et celles de mesure des niveaux de champ magnétique générés par les appareils électroniques et électriques dans l'environnement ferroviaire en regard de l'exposition humaine (également pour les personnes portant des dispositifs médicaux implantables actifs). S'applique aux appareils, systèmes et installations fixes destinés à être utilisés dans l'environnement ferroviaire. La gamme de fréquences couverte est comprise entre de 0 Hz et 300 GHz.

General Information

• Status: Replaced
• Publication Date: 17-Oct-2011
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 17-Jul-2019

Relations

• Revised: IEC 62597:2019 - Magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure - Measurement procedures
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/TS 62597


®


Edition 1.0 2011-10



TECHNICAL



SPECIFICATION



SPÉCIFICATION
TECHNIQUE
Measurement procedures of magnetic field levels generated by electronic and
electrical apparatus in the railway environment with respect to human exposure

Procédures de mesure des niveaux de champ magnétique générés par les
appareils électriques et électroniques dans l'environnement ferroviaire en
regard de l'exposition humaine


IEC/TS 62597:2011

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC/TS 62597


®


Edition 1.0 2011-10



TECHNICAL



SPECIFICATION



SPÉCIFICATION
TECHNIQUE
Measurement procedures of magnetic field levels generated by electronic and
electrical apparatus in the railway environment with respect to human exposure

Procédures de mesure des niveaux de champ magnétique générés par les
appareils électriques et électroniques dans l'environnement ferroviaire en
regard de l'exposition humaine


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 45.060 ISBN 978-2-88912-735-1

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – TS 62597  IEC:2011



CONTENTS

FOREWORD . 4


INTRODUCTION . 6

1 Scope . 7

2 Normative references . 7


3 Terms and definitions . 7

4 Measurement procedure . 9

4.1 General . 9

4.2 Rolling stock . 10
4.2.1 General . 10
4.2.2 Accessible areas for workers inside rolling stock . 10
4.2.3 Public areas inside rolling stock . 10
4.2.4 Areas outside rolling stock (public and workers) . 11
4.3 Fixed installation . 12
4.3.1 General . 12
4.3.2 Open railway route (public and workers) . 12
4.3.3 Areas close to fixed power supply installations (public and workers) . 13
4.3.4 Platform (public and workers) . 13
4.3.5 Simulation/calculation . 13
4.4 Test conditions . 14
4.4.1 Test of rolling stock . 14
4.4.2 Test of fixed installation . 14
4.5 Test environment. 15
5 Measurement technique . 15
5.1 General . 15
5.2 Frequency range . 15
5.3 Measurement equipment . 15
5.3.1 General . 15
5.3.2 Field probes . 15
5.3.3 Summation of spatial components . 15
5.3.4 Data logging . 16
5.3.5 Dynamic range . 16
5.3.6 Isotropy . 16

5.3.7 Linearity . 16
5.3.8 Calibration and accuracy . 16
5.4 Evaluation methods . 16
5.4.1 General . 16
5.4.2 DC magnetic field . 16
5.4.3 AC magnetic field . 16
5.5 Measurement execution . 17
5.5.1 General . 17
5.5.2 Rolling stock . 17
5.5.3 Fixed installation . 18
6 Report . 18
Annex A (informative) Test plan . 20
Bibliography . 24

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TS 62597  IEC:2011 – 3 –


Figure 1 – External surface of the rolling stock . 11

Figure 2 – Measuring point of surface method . 12




Table 1 – Location and distances . 13

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– 4 – TS 62597  IEC:2011


INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________



MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS

GENERATED BY ELECTRONIC AND ELECTRICAL APPARATUS

IN THE RAILWAY ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE





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
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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
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.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62597, which is a technical specification, has been prepared by IEC technical committee
9: Electrical equipment and systems for railways.
This technical specification is based on EN 50500.

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TS 62597  IEC:2011 – 5 –


The text of this technical specification is based on the following documents:


Enquiry draft Report on voting


9/1429/DTS 9/1499A/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 2.


The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. 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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– 6 – TS 62597  IEC:2011


INTRODUCTION


The intention of this Technical Specification is to summarize existing measuring/calculation

methods for determining the magnetic fields in the space around the equipment mentioned in

the scope.

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TS 62597  IEC:2011 – 7 –


MEASUREMENT PROCEDURES OF MAGNETIC FIELD LEVELS

GENERATED BY ELECTRONIC AND ELECTRICAL APPARATUS

IN THE RAILWAY ENVIRONMENT WITH RESPECT TO HUMAN EXPOSURE








1 Scope


This Technical Specification applies to apparatus, systems and fixed installations which are

intended for use in the railway environment. The frequency range covered is 0 Hz to 300 GHz.
Technical considerations and measurements are necessary for frequencies from d.c. to
20 kHz because no relevant field strengths are expected above due to the physical nature of
EMF-sources in the railway environment.
a) The regulations regarding the protection of human beings (also bearing active
implantable medical devices) during exposure to non-ionizing electromagnetic fields in
the railway environment are different according to the countries worldwide.
The object of this Technical Specification is to summarize measurement and
simulation/calculation procedures of magnetic field levels generated by electronic and
electrical apparatus in the railway environment with respect to human exposure (also for
human beings bearing active implantable medical devices).
Transient conditions, such as short circuit, earth fault and transformer inrush are excluded.
Not covered are personal electronic devices (e.g. mobile phones, notebook computers,
wireless communication systems, etc.) of passengers and workers.
Not covered are intentional transmitters with frequencies higher than 20 kHz.
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 61786, Measurement of low-frequency magnetic and electric fields with regard to

exposure of human beings – Special requirements for instruments and guidance for
measurements
IEC 62236 (all parts), Railway applications – Electromagnetic compatibility
IEC 62311, Assessment of electronic and electrical equipment related to human exposure
restrictions for electromagnetic fields (0 Hz – 300 GHz)
ISO/IEC 17025, General requirements for the competence of testing and calibration
laboratories
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62236, IEC 62311,
IEC 61786 and the following apply.

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– 8 – TS 62597  IEC:2011


3.1

workers

drivers, train-staff and all people working in the railway environment. National definition of

“workers” will have a priority if any


3.2

platform

place where passengers can enter, leave and change trains


3.3

fixed installation

infrastructure of railway environment without rolling stock
3.4
electric traction system / feeding system
railway electric distribution network to provide energy for an electrical motive power unit.
EXAMPLE This system may comprise
– contact line systems,
– return circuit systems,
– running rails of non-electric traction systems, which are in the vicinity of, and conductively
connected to the running rails of an electric traction system,
– electrical installations, which are supplied from contact lines either directly or via a
transformer,
– electrical installations in power plants and substations, which are utilized solely for
generation and distribution of power directly to the contact line,
– electrical installations of switching stations
3.5
main line
railway line for passenger and freight trains in regional and long-distances operation
3.6
urban transport
railway line for underground trainsets, trams, LRV (Light Rail Vehicles), trolleybuses to
operate within the boundary of a metropolitan area
3.7
rolling stock

smallest unit which can be operated covering all vehicles with or without motors
3.8
level crossing
crossing of railway line and public way (street or footpath) on the same level
3.9
working area
area for workers without access for general public. National definitions of this area have
priority.
3.10
the railway environment
the surrounding objects or region which may be influenced by electronic and electrical
apparatus of the railway (see IEC 62236-2)

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TS 62597  IEC:2011 – 9 –


3.11

public

all people in the railway environment except workers


3.12

open railway route

railway route except station


4 Measurement procedure


4.1 General
In railways three electromagnetic sources can affect human beings: rolling stock, traction
power supply and signalling equipment.
According to generic EMF standard IEC 62311, there are two separate summation regimes for
simultaneous exposure to fields of different frequencies. They depend on the effects of the
exposure. In the frequency range from 1 Hz to 10 MHz the electrical stimulation is relevant. In
the frequency range from 100 kHz to 300 GHz, thermal effects are relevant.
As the detectable emission of rolling stock, traction power supply and signalling equipment is
in the frequency range from d.c. to 100 kHz, measurements, simulation and calculation are
restricted to this range. Accordingly, only one summation regime is applied. In this frequency
range the magnetic field is dominant and the electric field can be neglected.
As power of signalling equipment is low in comparison with other sources of EMF in the
railway environment, its contribution can be neglected.
The load within the railway system can change widely in short times. Emission is related to
load.
The measurement procedure of the whole railway system is divided into two cases.
Case 1: Rolling stock (see 4.2)
– measurements inside rolling stock, and
– measurements outside rolling stock.
Case 2: Fixed installation of existing infrastructure (see 4.3)
– measurement of existing railway infrastructure,
– simulation/calculation of worst case situation (e.g. bridges, level crossing, maximum

possible current in overhead lines, third rails).
NOTE Compliance of rolling stock can be demonstrated with the first explained case. Compliance of fixed
installation can be demonstrated with the second explained case.
For the apparatus, systems and fixed installations in railway environment there are basic
restrictions for general public and workers specified in ICNIRP and IEEE standards (see
Bibliography).
With compliance of case 1 and case 2, it can be assumed that the whole railway system
complies with the relevant requirements and limits.
Subclause 4.2 defines the measurement points in established areas inside and outside rolling
stock.
Subclause 4.3 defines the measurement points in established areas in fixed installation and
gives details regarding simulation/calculation.

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– 10 – TS 62597  IEC:2011


Subclause 4.4 defines the test conditions during the measurement of the magnetic field.


Subclause 4.5 is related to the test environment.


A test plan for rolling stock and fixed installation is given in Annex A.


4.2 Rolling stock


4.2.1 General


The following measurement points are specified inside and outside rolling stock:

4.2.2 Accessible areas for workers inside rolling stock
The measurements indicate the emissions of the train equipment in standstill and dynamic
condition (see 4.4.1).
Measurements shall be carried out where workers are located when seated or accessing
areas in the train during normal operation conditions of train taking into account the sources
of emission within the train. This is defined as the occupied volume.
The occupied volume can be measured either by the surface method or by the volume method.
Surface method:
The enclosing surface of the volume shall be measured at a minimum distance (under the
sensor restriction) and at an agreed number of measuring points (e.g. by measurement on the
floor surface above emission sources and if necessary additional measurement heights above
the floor may be 0,5 m, 1,0 m and 1,5 m).
Failure to satisfy the value of the limits using the surface method does not necessarily mean
the occupied volume limits are exceeded.
Volume method:
The occupied volume shall be measured at typical places where workers can be located. The
measurement heights above the floor shall be 1,0 m and 1,5 m. The horizontal measuring
distance to the walls is 0,3 m or at the minimum distance (> 0,3 m) where workers can be.
4.2.3 Public areas inside rolling stock

The measurements indicate the emissions of the train equipment in standstill and dynamic
condition (see 4.4.1).
Measurements shall be carried out in areas occupied by public during normal operation
conditions of train taking into account the sources of emission within the train. This is defined
as the occupied volume.
The occupied volume can be measured either by the surface method or by the volume method
defined in 4.2.2.
However in the case of the volume method the measurement heights above the floor shall be
0,3 m, 1,0 m and 1,5 m.

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TS 62597  IEC:2011 – 11 –


4.2.4 Areas outside rolling stock (public and workers)


The measurements indicate the emissions of the train equipment in standstill condition (see

4.4.1).


Measurements shall be carried out where public or workers are located outside the train

during normal operation conditions of train when stationary taking into account the sources of

emission within the train. This is defined as the occupied volume.


The occupied volume can be measured either by the surface method or by the volume method.


The external surface of the rolling stock is defined as shown in Figure 1. The occupied volume
does not consider places below or above the rolling stock.

Surface of the rolling stock
Height above
rail level  (m)
Rail level
Train equipment that
emits magnetic fields
IEC  2336/11

Figure 1 – External surface of the rolling stock
– Surface method:
The external surface of the train shall be measured at a minimum distance (under the sensor
restriction) and at an agreed number of measuring points (e.g. by measurement at the height
of the centre of the nearest side of the equipment as defined in Figure 2).

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– 12 – TS 62597  IEC:2011







Surface of the rolling stock



Height above

rail level  (m)


Measuring point

Rail level
Train equipment that Centre of train
emits magnetic fields equipment
IEC  2337/11

Figure 2 – Measuring point of surface method
Failure to satisfy the value of the limits using the surface method does not necessarily mean
the occupied volume limits are exceeded.
– Volume method:
Measurements shall be carried out at distances of 0,3 m to the train surface taking into
account the sources of emission of the rolling stock (e.g. power converters, power cables and
power inductors) at 0,5 m, 1,5 m and 2,5 m height from the top of the running rails (rail level).
Measurements for public shall not be carried out at the same side of the third rail with respect
to the tracks.
4.3 Fixed installation
4.3.1 General
Demonstration of compliance of the existing fixed installation shall include fixed electric
traction system of railway environment.
Positions where compliance has to be demonstrated are given in 4.3.1 to 4.3.3.

Simulation/calculation can give worst case figures (see 4.3.4).
A test plan is given in Annex A.
For measurement of fixed installation, measurement should take into account coherency and
compatibility with the measurement procedures for electric power systems.The international
EMF standard for electric power systems IEC 62110 should be referenced.
4.3.2 Open railway route (public and workers)
Measurements and/or simulation/calculation regarding public shall be carried out at the
distances measured from the centre of the nearest track of the considered system as given in
Table 1, or at higher distances within the nearest accessible area for public, at 1,0 m or 1,5 m
above ground level (standing area) where people can be at the detected location, see Table 1.

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TS 62597  IEC:2011 – 13 –


Measurements for workers on open railway r
...