EN 50124-1:2017
(Main)Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
This European Standard deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and between items of equipment. In dimensioning insulation, electrical stresses and environmental conditions are taken into account. For the same conditions and stresses, these dimensions are the same. An objective of insulation coordination is to avoid unnecessary over dimensioning of insulation. This standard specifies: - requirements for clearances and creepage distances for equipment; - general requirements for tests pertaining to insulation coordination. The term equipment relates to a section as defined in 3.3 it may apply to a system, a sub-system, an apparatus, a part of an apparatus, or a physical realization of an equipotential line. This standard does not deal with: - distances through solid or liquid insulation; - distances through gases other than air; - distances through air not at atmospheric pressure; - equipment used under extreme conditions. Product standards should align with this generic standard. However, they may require, with justification, different requirements due to safety and/or reliability reasons, e.g. for signalling, and/or particular operating conditions of the equipment itself, e.g. overhead contact lines which should comply with EN 50119. This standard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see Annex B). NOTE For safety critical systems, specific requirements are needed. These requirements are given in the product specific signalling standard EN 50129.
Bahnanwendungen - Isolationskoordination - Teil 1: Grundlegende Anforderungen - Luft- und Kriechstrecken für alle elektrischen und elektronischen Betriebsmittel
Applications ferroviaires - Coordination de l'isolement - Partie 1: Prescriptions fondamentales - Distances d'isolement dans l'air et lignes de fuite pour tout matériel électrique et électronique
La présente Norme européenne traite de la coordination de l'isolement dans le domaine ferroviaire. Elle s'applique aux matériels utilisés en signalisation, matériels roulants et installations fixes. La coordination de l'isolement porte sur le choix, le dimensionnement et la corrélation de l'isolement tant à l'intérieur des matériels qu'entre eux. Pour le dimensionnement de l'isolement, il est tenu compte des contraintes électriques et des conditions d’environnement. Ces dimensions sont les mêmes lorsque les conditions et contraintes sont les mêmes. L'un des objectifs de la coordination de l'isolement est d'éviter de surdimensionner inutilement l'isolement. La présente norme définit: - des exigences relatives aux distances d'isolement dans l'air et aux lignes de fuite applicables aux matériels; - des exigences générales pour les essais concernant la coordination de l'isolement. Le terme "matériels" se rapporte à une section, telle que définie en 3.3; il peut s'appliquer à un système, un sous-système, un appareil, une partie d'appareil ou une réalisation physique de ligne équipotentielle. La présente norme ne traite pas: - des distances à travers une isolation solide ou liquide; - des distances à travers des gaz autres que l'air; - des distances à travers de l'air qui n'est pas à pression atmosphérique; - des matériels utilisés en conditions extrêmes. Il convient que les normes de produit s’alignent sur la présente norme générique. Cependant, ces normes peuvent requérir, moyennant justification, des exigences différentes du fait de raisons de sécurité et/ou de fiabilité, induites par la signalisation par exemple, et/ou par des conditions de fonctionnement particulières du matériel proprement dit, par exemple, des lignes aériennes de contact dont il convient qu’elles soient conformes à l'EN 50119. La présente norme donne également des dispositions applicables aux essais diélectriques (essais de type ou essais individuels de série) réalisés sur les matériels (voir Annexe B). NOTE Des exigences spécifiques sont nécessaires pour les systèmes de sécurité critique. Ces exigences sont déterminées dans la norme spécifique de produit relative à la signalisation, l’EN 50129.
Železniške naprave - Uskladitev izolacije - 1. del: Osnovne zahteve - Izolacijske in plazilne razdalje za vso električno in elektronsko opremo
Ta del standarda EN 50124 obravnava uskladitev izolacije pri železnicah. Uporablja se za opremo za signalizacijo, vozna sredstva in stabilne naprave električne vleke.
Uskladitev izolacije zadeva izbiro, dimenzioniranje in korelacijo izolacije znotraj opreme in med elementi opreme. Pri dimenzioniranju izolacije se upoštevajo električne obremenitve in okoljski pogoji. Za enake pogoje in obremenitve so dimenzije enake.
Cilj uskladitve izolacije je preprečitev nepotrebnega prekomernega dimenzioniranja izolacije.
Ta standard določa:
zahteve za izolacijske in plazilne razdalje za opremo;
splošne zahteve za preskuse, ki se nanašajo na uskladitev izolacije.
Izraz »oprema« se nanaša na razdelek, kot je opredeljeno v točki 3.3, in se lahko uporablja za sistem, podsistem, napravo, del naprave ali fizično realizacijo izenačitve potencialov.
Ta standard ne obravnava:
razdalj skozi trdno ali tekočo izolacijo;
razdalj skozi pline, razen zraka;
razdalj skozi zrak ne pri atmosferskem tlaku;
opremo, ki se uporablja v ekstremnih pogojih.
Standardi za proizvode morajo biti usklajeni s tem splošnim standardom.
Vendar pa lahko z utemeljitvijo zahtevajo različne zahteve zaradi varnosti in/ali zanesljivosti, npr. za signalizacijo, in/ali posebne pogoje za uporabo same opreme, npr. kontaktnih vodnikov, ki morajo biti skladni s standardom EN 50119.
Ta standard vsebuje tudi določbe za dielektrične preskuse (tipske in rutinske preskuse) na opremi (glej dodatek B).
OPOMBA: Za ključne varnostne sisteme so potrebne posebne zahteve. Te zahteve so podane v standardu za signalizacijo za posamezen proizvod EN 50129.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2017
1DGRPHãþD
SIST EN 50124-1:2002
SIST EN 50124-1:2002/A1:2004
SIST EN 50124-1:2002/A2:2005
äHOH]QLãNHQDSUDYH8VNODGLWHYL]RODFLMHGHO 2VQRYQH]DKWHYH,]RODFLMVNHLQ
SOD]LOQHUD]GDOMH]DYVRHOHNWULþQRLQHOHNWURQVNRRSUHPR
Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances
and creepage distances for all electrical and electronic equipment
Bahnanwendungen - Isolationskoordination - Teil 1: Grundlegende Anforderungen - Luft-
und Kriechstrecken für alle elektrischen und elektronischen Betriebsmittel
Applications ferroviaires - Coordination de l'isolement - Partie 1: Prescriptions
fondamentales - Distances d'isolement dans l'air et lignes de fuite pour tout matériel
électrique et électronique
Ta slovenski standard je istoveten z: EN 50124-1:2017
ICS:
29.080.01 (OHNWULþQDL]RODFLMDQD Electrical insulation in
VSORãQR general
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50124-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2017
ICS 29.080.01; 29.280 Supersedes EN 50124-1:2001
English Version
Railway applications - Insulation coordination - Part 1: Basic
requirements - Clearances and creepage distances for all
electrical and electronic equipment
Applications ferroviaires - Coordination de l'isolement - Bahnanwendungen - Isolationskoordination - Teil 1:
Partie 1: Prescriptions fondamentales - Distances Grundlegende Anforderungen - Luft- und Kriechstrecken für
d'isolement dans l'air et lignes de fuite pour tout matériel alle elektrischen und elektronischen Betriebsmittel
électrique et électronique
This European Standard was approved by CENELEC on 2017-02-06. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50124-1:2017 E
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Basis for insulation coordination . 11
4.1 Basic principles . 11
4.1.1 General . 11
4.1.2 Insulation coordination with regard to voltage . 11
4.1.3 Insulation coordination with regard to environmental conditions . 12
4.2 Voltages and voltage ratings . 13
4.2.1 General . 13
4.2.2 Rated insulation voltage U . 13
Nm
4.2.3 Rated impulse voltage U . 13
Ni
4.3 Time under voltage stress. 14
4.4 Pollution . 14
4.5 Insulating material . 15
4.5.1 General . 15
4.5.2 Comparative tracking index (CTI) . 15
5 Requirements and dimensioning rules for clearances . 16
5.1 General . 16
5.2 Minimum clearances . 16
5.2.1 Functional insulation. 16
5.2.2 Basic and supplementary insulation . 16
5.2.3 Reinforced insulation . 16
5.3 Contingency . 16
5.4 Clearances for altitudes higher than 2 000 m . 17
6 Dimensioning rules for creepage distances . 17
6.1 General . 17
6.2 Minimum creepage distances . 17
6.2.1 Functional, basic and supplementary insulations . 17
6.2.2 Reinforced insulation . 17
7 Tests and measurements . 18
7.1 General . 18
7.2 Measurement of creepage distances and clearances . 18
7.2.1 Method and values . 18
7.2.2 Acceptance criteria . 18
7.3 Verification of clearances by impulse test . 18
7.3.1 Method and values . 18
7.3.2 Test acceptance criteria . 19
7.4 Verification of clearances by power-frequency test . 19
7.4.1 Method and values . 19
7.4.2 Test acceptance criteria . 19
7.5 Verification of clearances by d.c. voltage test . 19
7.5.1 Method and values . 19
7.5.2 Test acceptance criteria . 19
8 Specific requirements for applications in the railway field . 20
8.1 General . 20
8.2 Specific requirements for signalling . 20
8.2.1 Overvoltage categories . 20
8.2.2 Rated impulse voltages . 21
8.2.3 Induced voltages . 21
8.2.4 Installation instructions . 21
8.2.5 Pollution degrees . 21
8.3 Specific requirements for rolling stock . 21
8.3.1 Determination of the rated impulse voltage U by method 1 . 21
Ni
8.3.2 Creepage distances . 22
8.3.3 Roof installations . 22
8.4 Specific requirements for fixed installations . 22
8.4.1 Determination of the rated impulse voltage U by method 1 . 22
Ni
8.4.2 Distances of outdoor insulators . 23
Annex A (normative) Tables . 24
Annex B (normative) Provisions for type and routine dielectric tests for
equipment . 31
B.1 General . 31
B.2 Tests . 31
Annex C (normative) Methods of measuring creepage distances and clearances . 33
Annex D (normative) Correlation between U and U . 40
n Nm
Annex E (informative) Macro-environmental conditions . 41
Annex F (informative) Application guide . 42
F.1 Introduction . 42
F.2 Determination of minimum clearances and creepage distances . 42
F.3 Examples . 48
F.4 Tests . 50
Annex ZZ (informative) Relationship between this European Standard and the
Essential Requirements of EU Directive 2008/57/EC . 52
Bibliography . 53
Tables
Table A.1 — Rated impulse voltage U for low voltage circuits not powered
Ni
directly by the contact line . 24
Table A.2 — Rated impulse voltages (U ) for circuits powered by the contact line
Ni
and for traction power circuits in thermo-electric driven vehicles . 25
Table A.3 — Minimum clearances in air for the standard altitude ranges based on
the rated impulse voltage U . 26
Ni
Table A.4 — Definition of pollution degrees . 27
Table A.5 — Minimum creepage distances based on rated insulation voltage U
Nm
up to 1 000 V for printed wiring material and associated components . 27
Table A.6 — Minimum creepage distances for low values of rated insulation
voltage U for materials other than printed wiring material . 28
Nm
Table A.7 — Minimum creepage distances (in mm/kV) for high values of rated
insulation voltage U . 28
Nm
Table A.8 — Test voltages for verifying clearances at atmospheric and altitude
reference conditions, not to be used for routine dielectric tests . 29
Table A.9 — Altitude correction factors for clearances in circuits with U up to
Ni
and including 60 kV when equipment is intended to be used above 2 000 m . 30
Table A.10 — Altitude correction factors for clearances in circuits with U higher
Ni
than 60 kV when equipment is intended to be used above 2 000 m .
...
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