IEC 62498-3:2010

Railway applications - Environmental conditions for equipment - Part 3: Equipment for signalling and telecommunications

IEC 62498-3:2010 covers the design and the use of equipment and any portable equipment for signalling and telecommunications systems (including test, measure, monitoring equipment, etc.). The contents of the corrigendum of November 2010 have been included in this copy.

Applications ferroviaires - Conditions d'environnement pour le matériel - Partie 3: Equipement pour la signalisation et les télécommunications

La CEI 62498-3:2010 couvre la conception et l'utilisation des équipements fixes et de tout équipement portable de signalisation et de télécommunications de l'infrastructure (en incluant les équipements d'essai, de mesure, de surveillance, etc.). Le contenu du corrigendum de novembre 2010 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 26-Aug-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: WG 44 - TC 9/WG 44
• Current Stage: PPUB - Publication issued
• Start Date: 31-Aug-2010
• Completion Date: 27-Aug-2010

Relations

• Corrected By: IEC 62498-3:2010/COR1:2010 - Corrigendum 1 - Railway applications - Environmental conditions for equipment - Part 3: Equipment for signalling and telecommunications
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62498-3 ®
Edition 1.0 2010-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Environmental conditions for equipment –
Part 3: Equipment for signalling and telecommunications

Applications ferroviaires – Conditions d'environnement pour le matériel –
Partie 3: Equipement pour la signalisation et les télécommunications

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IEC 62498-3 ®
Edition 1.0 2010-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Environmental conditions for equipment –
Part 3: Equipment for signalling and telecommunications

Applications ferroviaires – Conditions d'environnement pour le matériel –
Partie 3: Equipement pour la signalisation et les télécommunications

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 45.060 ISBN 978-2-88912-116-8
– 2 – 62498-3 © IEC:2010
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms and definitions .7
4 Environmental conditions.8
4.1 General .8
4.2 Pressure .8
4.2.1 Altitude.8
4.2.2 Pulse pressure .9
4.3 Temperature.9
4.4 Humidity.10
4.5 Wind.11
4.6 Rain .12
4.7 Snow and hail.12
4.8 Ice.12
4.9 Solar radiation.13
4.10 Lightning .13
4.11 Pollution.13
4.12 Fire protection .14
4.13 Vibrations and shocks .14
4.13.1 Vibrations .14
4.13.2 Shocks .15
4.14 Electromagnetic compatibility .16
4.15 Power supplies.16
Annex A (informative) Example of climatic classes.17
Annex B (normative) Climatograms.18
Annex C (informative)  Examples of q and c factors .24
Annex D (normative)  Vibrations .25
Bibliography.29

Figure 1 – Three axes for the vibrations curves of Annex D .15
Figure B.1 – Temperature and humidity in external ambient – Climatograms for
external ambient for climatic classes T1, T2 and TX with extension for tunnel
conditions .18
Figure B.2 – Temperature and humidity in cubicle – Climatograms for cubicles for
climatic classes T1, T2 and TX with extension for tunnel conditions.19
Figure B.3 – Temperature and humidity in shelter NTC – Climatograms for shelters for
climatic classes T1, T2 and TX with extension for tunnel conditions.20
Figure B.4 – Temperature and humidity in shelter TC – Climatograms for shelters with
temperature-control for climatic classes T1, T2 and TX.21
Figure B.5 – Temperature and humidity in building NCC – Climatograms for buildings
for climatic classes T1, T2 and TX with extension for tunnel conditions.22
Figure B.6 – Temperature and humidity in building CC – Climatograms for buildings
with climatic-control for climatic classes T1, T2 and TX .23
Figure D.1 – Power spectral density of vibrations on rail .25
Figure D.2 – Power spectral density of vibrations on sleeper .26

62498-3 © IEC:2010 – 3 –
Figure D.3 – Power spectral density of vibrations on ballast.27
Figure D.4 – Power spectral density of vibrations outside the track (from 1 m to 3 m
from the rail) .28

Table 1 – Altitude relative to sea level .9
Table 2 – Temperature ranges at different sites .9
Table 3 – Humidity ranges at different sites .11
Table 4 – External ambient pollution levels .14
Table 5 – Acceleration at track side positions .15
Table 6 – Shocks at different track side positions (vertical axis).15
Table A.1 – Example of European regions and theirs appropriate climatic classes .17
Table A.2 – Example of Japanese regions and theirs appropriate climatic classes .17
Table C.1 – Pressure head in relation to air speed.24
Table C.2 – Typical values of form factor c .24

– 4 – 62498-3 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS –
ENVIRONMENTAL CONDITIONS FOR EQUIPMENT –

Part 3: Equipment for signalling and telecommunications

FOREWORD
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