EN 50125-1:2014
(Main)Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and on-board equipment
Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and on-board equipment
This European Standard intends to define environmental conditions within Europe. NOTE 1 It can also be applied elsewhere by agreement. The scope of this European Standard covers the definitions and ranges of the following parameters: Altitude, temperature, humidity, air movement, rain, snow and hail, ice, solar radiation, lightning, pollution for rolling stock and on-board equipment (mechanical, electromechanical, electrical, electronic). In particular, this European Standard defines interface conditions between the vehicle and its environment. The defined environmental conditions are considered as normal in service. NOTE 2 Further guidance on severe conditions can be found within prEN 16251. Rolling stock or parts of it can also be used outside the specification with reduced performance. NOTE 3 In these cases, relevant operating rules could be necessary to ensure the technical compatibility between the rolling stock and environmental conditions. Microclimates surrounding components may be defined by relevant product standards or by special requirements. Passenger effects on the equipment and equipment effects on the passengers are not considered in this European Standard. This European Standard does not apply to cranes, mining vehicles, cable cars. This European Standard also does not apply to natural disaster (e.g. earthquake).
Bahnanwendungen - Umweltbedingungen für Betriebsmittel - Teil 1: Betriebsmittel auf Bahnfahrzeugen
Applications ferroviaires - Conditions d'environnement pour le matériel - Partie 1: Equipement embarqué du matériel roulant
Železniške naprave - Okoljski pogoji za opremo - 1. del: Oprema na voznih sredstvih
Namen standard EN 50125-1 je opredeliti okoljske pogoje v Evropi. Področje uporabe tega evropskega standarda zajema definicije in razpone naslednjih parametrov: Nadmorska višina, temperatura, vlažnost, premikanje zraka, dež, sneg in toča, led, sončno sevanje, onesnaževanje, ki ga povzročajo vozna sredstva in oprema v vozilih (mehanska, elektromehanska, električna, elektronska). Ta evropski standard posebej opredeljuje vmesne pogoje med vozilom in okoljem. Opredeljene okoljske pogoje se obravnava kot normalne. Vozna sredstva ali njihovi deli se lahko uporabljajo zunaj te specifikacije z zmanjšano učinkovitostjo. Mikroklime, v katerih se komponente nahajajo, so lahko opredeljene s standardi ustreznih proizvodov ali s posebnimi zahtevami. Ta evropski standard se ne nanaša na vpliv potnikov na opremo in vpliv opreme na potnike. Ta evropski standard ne velja za dvigala, rudarska vozila in žičnice. Ta evropski standard se tudi ne nanaša na naravne nesreče (npr. potres).
General Information
Relations
Overview
EN 50125-1:2014 - "Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and on-board equipment" is a CLC (CENELEC) European standard that defines the normal environmental conditions to which rolling stock and on-board mechanical, electromechanical, electrical and electronic equipment must be designed to operate. It specifies interface conditions between vehicle and environment for Europe (and can be applied elsewhere by agreement), and covers parameters such as altitude, temperature, humidity, air movement, rain, snow/hail, ice, solar radiation, lightning and pollution.
Key topics and technical requirements
- Scope & exclusions: Applies to equipment on rolling stock; excludes cranes, mining vehicles, cable cars and natural disasters (e.g. earthquake). Defines normal in-service conditions; severe conditions are addressed in complementary guidance (prEN 16251).
- Altitude classes: Defines classes (A1, A2, A3, AX) with altitude ranges relative to sea level to account for air pressure effects on cooling, engines and clearances.
- Temperature classes: Defines air and inside-vehicle temperature classes (T1, T2, T3, TX) with specified minimum/maximum limits used for design, derating and thermal qualification.
- Humidity: Yearly average ≤ 75% RH; up to 75–95% RH for 30 days/year; occasional 95–100% RH; maximum absolute humidity up to 30 g/m3 (tunnels). Condensation and rapid temperature change rates are considered.
- Air movement & wind: Design wind speed assumption 35 m/s at standstill (up to 50 m/s exceptional). Includes surrounding air movement, pressure pulses and cross-wind assessment references.
- Precipitation & precipitation effects: Rain rate considered 6 mm/min; hailstone diameter up to 15 mm (exceptional larger stones); snow level classes (S1–S3) and snow ingress/accumulation effects.
- Other factors: Ice formation/fall, solar radiation, lightning and pollution are addressed; microclimates and passenger-equipment interactions are out of scope but may be specified separately.
- Practical test/interface implications: Values are limiting (not permanent); frequency of occurrence should be specified where relevant. Allows equipment derating or controlled environments when necessary.
Applications - who uses this standard
- Rolling stock designers and manufacturers for environmental design margins and component selection
- Subsystem and equipment suppliers (HVAC, traction, control electronics) for qualification and testing
- Railway systems engineers and specifiers drafting procurement and interoperability requirements
- Test laboratories and compliance teams for environmental testing and verification
- Maintenance planners assessing operational limits and derating strategies
Related standards
- EN 50125-2 (fixed installations), EN 50125-3 (signalling & telecom)
- EN 50155 (rolling stock electronic equipment reliability/thermal guidance)
- EN 14067-6 (cross-wind assessment), EN 50124-2, EN 60529 (IP Code), EN 60721-3-5
Keywords: EN 50125-1:2014, railway environmental conditions, rolling stock, on-board equipment, temperature classes, humidity, altitude, rail standards.
Frequently Asked Questions
EN 50125-1:2014 is a standard published by CLC. Its full title is "Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and on-board equipment". This standard covers: This European Standard intends to define environmental conditions within Europe. NOTE 1 It can also be applied elsewhere by agreement. The scope of this European Standard covers the definitions and ranges of the following parameters: Altitude, temperature, humidity, air movement, rain, snow and hail, ice, solar radiation, lightning, pollution for rolling stock and on-board equipment (mechanical, electromechanical, electrical, electronic). In particular, this European Standard defines interface conditions between the vehicle and its environment. The defined environmental conditions are considered as normal in service. NOTE 2 Further guidance on severe conditions can be found within prEN 16251. Rolling stock or parts of it can also be used outside the specification with reduced performance. NOTE 3 In these cases, relevant operating rules could be necessary to ensure the technical compatibility between the rolling stock and environmental conditions. Microclimates surrounding components may be defined by relevant product standards or by special requirements. Passenger effects on the equipment and equipment effects on the passengers are not considered in this European Standard. This European Standard does not apply to cranes, mining vehicles, cable cars. This European Standard also does not apply to natural disaster (e.g. earthquake).
This European Standard intends to define environmental conditions within Europe. NOTE 1 It can also be applied elsewhere by agreement. The scope of this European Standard covers the definitions and ranges of the following parameters: Altitude, temperature, humidity, air movement, rain, snow and hail, ice, solar radiation, lightning, pollution for rolling stock and on-board equipment (mechanical, electromechanical, electrical, electronic). In particular, this European Standard defines interface conditions between the vehicle and its environment. The defined environmental conditions are considered as normal in service. NOTE 2 Further guidance on severe conditions can be found within prEN 16251. Rolling stock or parts of it can also be used outside the specification with reduced performance. NOTE 3 In these cases, relevant operating rules could be necessary to ensure the technical compatibility between the rolling stock and environmental conditions. Microclimates surrounding components may be defined by relevant product standards or by special requirements. Passenger effects on the equipment and equipment effects on the passengers are not considered in this European Standard. This European Standard does not apply to cranes, mining vehicles, cable cars. This European Standard also does not apply to natural disaster (e.g. earthquake).
EN 50125-1:2014 is classified under the following ICS (International Classification for Standards) categories: 29.280 - Electric traction equipment; 45.060.10 - Tractive stock. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 50125-1:2014 has the following relationships with other standards: It is inter standard links to EN 50125-1:1999, prEN 50125:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 50125-1:2014 is associated with the following European legislation: EU Directives/Regulations: 2008/57/EC; Standardization Mandates: M/334, M/483. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 50125-1:2014 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2014
Železniške naprave - Okoljski pogoji za opremo - 1. del: Oprema na voznih
sredstvih
Railway applications - Environmental conditions for equipment - Part 1: Equipment on
board rolling stock
Bahnanwendungen - Umweltbedingungen für Betriebsmittel - Teil 1: Betriebsmittel auf
Bahnfahrzeugen
Applications ferroviaires - Conditions d'environnement pour le matériel - Partie 1:
Equipement embarqué du matériel roulant
Ta slovenski standard je istoveten z: EN 50125-1:2014
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 50125-1
NORME EUROPÉENNE
April 2014
EUROPÄISCHE NORM
ICS 29.280; 45.060.10 Supersedes EN 50125-1:1999
English version
Railway applications -
Environmental conditions for equipment -
Part 1: Rolling stock and on-board equipment
Applications ferroviaires - Bahnanwendungen – Umweltbedingungen
Conditions d'environnement pour le für Betriebsmittel – Teil 1: Betriebsmittel
matériel - auf Bahnfahrzeugen
Partie 1: Equipement embarqué du
matériel roulant
This European Standard was approved by CENELEC on 2014-02-24. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
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
© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50125-1:2014 E
Contents
Page
Foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Environmental conditions . 5
4.1 General . 5
4.2 Altitude . 5
4.3 Temperature . 6
4.4 Humidity . 7
4.5 Air movement .10
4.5.1 Wind .10
4.5.2 Surrounding air .10
4.6 Rain .10
4.7 Snow and hail .10
4.8 Ice .11
4.9 Solar radiation .11
4.10 Lightning .11
4.11 Pollution .11
4.12 Large animals on the track .12
Annex ZZ .13
Bibliography .14
- 3 - EN 50125-1:2014
Foreword
This document (EN 50125-1:2014) has been prepared by CLC/SC 9XB "Electromechanical material
on board rolling stock" of CLC/TC 9X "Electrical and electronic applications for railways".
The following dates are fixed:
• latest date by which this document has to be
(dop) 2015-02-24
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards
(dow) 2017-02-24
conflicting with this document have to
be withdrawn
This document supersedes EN 50125-1:1999.
requirements, as requested by the European Railway Agency (ERA).
EN 50125 is divided into the following parts:
- EN 50125-1, Railway applications — Environmental conditions for equipment — Part 1: Rolling
stock and on-board equipment (the present document).
- EN 50125-2 Railway applications — Environmental conditions for equipment — Part 2: Fixed
electrical installations.
- EN 50125-3 Railway applications — Environmental conditions for equipment — Part 3: Equipment
for signalling and telecommunications.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
1 Scope
This European Standard intends to define environmental conditions within Europe.
NOTE 1 It can also be applied elsewhere by agreement.
The scope of this European Standard covers the definitions and ranges of the following parameters:
Altitude, temperature, humidity, air movement, rain, snow and hail, ice, solar radiation, lightning,
pollution for rolling stock and on-board equipment (mechanical, electromechanical, electrical,
electronic).
In particular, this European Standard defines interface conditions between the vehicle and its
environment. The defined environmental conditions are considered as normal in service.
NOTE 2 Further guidance on severe conditions can be found within prCEN/TR 16251.
Rolling stock or parts of it can also be used outside the specification with reduced performance.
NOTE 3 In these cases, relevant operating rules could be necessary to ensure the technical compatibility between the rolling
stock and environmental conditions.
Microclimates surrounding components may be defined by relevant product standards or by special
requirements. Passenger effects on the equipment and equipment effects on the passengers are not
considered in this European Standard.
This European Standard does not apply to cranes, mining vehicles, cable cars. This European
Standard also does not apply to natural disaster (e.g. earthquake).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 14067-6, Railway applications — Aerodynamics — Part 6: Requirements and test procedures for
cross wind assessment
EN 50124-2, Railway applications — Insulation coordination — Part 2: Overvoltages and related
protection
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 60721-3-5, Classification of environmental conditions — Part 3: Classification of groups of
environmental parameters and their severities — Section 5: Ground vehicle installations (IEC 60721-3-5)
HD 478.2.3 S1, Classification of environmental conditions — Part 2: Environmental conditions appearing
in nature — Air pressure (IEC 60721-2-3)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
- 5 - EN 50125-1:2014
3.1
environmental condition
physical, chemical or biological condition, external to a product to which it is subjected at a certain
time
3.2
vehicle compartment
enclosure for housing of mechanical, electrical and/or electronic equipment
3.3
environmental parameters
one or more physical, chemical or biological properties characterising an environmental factor (e.g.
temperature, humidity)
EXAMPLE The environmental factor “snow and hail” is characterised by the parameters: snow level above top of rail and
diameter of the hailstones.
3.4
severity of environmental parameters
value of each quantity characterising the environmental parameter
EXAMPLE The severity of snow is defined by values of snow level above top of rail (in mm).
4 Environmental conditions
4.1 General
In the following clauses the environmental parameters are given at which the vehicle and its
equipment shall function as specified.
In the text, normal environmental conditions are considered as being those of Europe. They are
classified with a suffix 1, 2, 3, etc. and special conditions with a suffix X.
The class shall be required in the specification, otherwise the class with suffix 1 shall be assumed.
NOTE Except otherwise stated in this document, general information is given by EN 60721-3-5, HD 478.2.1 S1,
HD 478.2.2 S1, HD 478.2.3 S1 and HD 478.2.7 S1.
The severities specified are those which will have a low probability of being exceeded. All specified
values are maximum or limiting values. These values may be reached, but do not occur permanently.
Depending on the situation there may be different frequencies of occurrence related to a certain period
of time. Such frequencies of occurrence have not been included in this European Standard, but should
be considered for any environmental parameter. They should be additionally specified if applicable.
4.2 Altitude
The vehicle and its equipment shall perform as specified for the different classes of altitude range
relative to sea level given in Table 1.
Table 1 — Classes of altitude range
Classes Altitude range relative
to sea level
m
A1 Up to1 400
A2 Up to 1 000
A3 Up to 1 200
AX More than 1 400
NOTE 1 The mainline railway lines with the highest altitudes are
– Gotthard (Switzerland): 1 151 m,
– Brenner (Italy): 1 371 m,
– Semmering (Austria): 985 m,
– Finse: (Norway): 1 222 m.
NOTE 2 Altitude is relevant, in particular for air pressure level and its consequence on cooling systems, air conditioning
systems, diesel engines and electrical clearances.
W
...
제목: EN 50125-1:2014 - 철도 응용분야 - 장비용 환경 조건 - 제1부: 롤링 스톡 및 기기 내용: 이 유럽 표준은 유럽 내에서 환경 조건을 정의하고자 함을 목적으로 한다. 참고 1으로서 합의에 따라 다른 곳에서도 적용될 수 있다. 이 유럽 표준의 범위는 아래의 파라미터인 해발고도, 온도, 습도, 공기 이동, 비, 눈과 우박, 얼음, 태양 복사, 번개, 오염 등 롤링 스톡과 기기(기계, 전기기계, 전기, 전자)에 대한 정의와 범위를 다루고 있다. 특히, 이 유럽 표준은 차량과 환경 간의 인터페이스 조건을 정의한다. 정의된 환경 조건은 서비스 중에 정상적으로 고려된다. 참고 2로서, 심한 조건에 대한 추가적인 안내는 prEN 16251 내에서 찾아볼 수 있다. 롤링 스톡 또는 그 일부는 성능이 감소된 상태로 사양 외부에서도 사용될 수 있다. 참고 3으로서, 이러한 경우, 롤링 스톡과 환경 조건 간의 기술 호환성을 보장하기 위해서 관련 운영 규칙이 필요할 수 있다. 주변 구성 요소를 둘러싼 미세기후는 관련 제품 표준 또는 특수 요구사항에 따라 정의될 수 있다. 이 유럽 표준에는 승객이 장비에 미치는 효과와 장비가 승객에게 미치는 효과는 고려하지 않는다. 이 유럽 표준은 크레인, 광산차량, 케이블카에는 적용되지 않는다. 이 유럽 표준은 자연 재앙(예: 지진)에도 적용되지 않는다.
記事のタイトル：EN 50125-1：2014- 鉄道応用 - 装置の環境条件 - 第1部：車輌および車上装置 記事の内容：この欧州規格は、ヨーロッパ内での装置の環境条件を定義することを目的としています。注1として、合意により他の地域でも適用可能です。この欧州規格の範囲は、以下のパラメーターである高度、温度、湿度、空気の移動、雨、雪とひょう、氷、太陽放射線、稲妻、汚染など、車輌や車上装置（機械、電気機械、電気、電子）の定義と範囲をカバーしています。特に、この欧州規格は車両とその周囲環境のインターフェース条件を定義しています。定義された環境条件は、サービス中において通常のものと見なされます。注2として、厳しい条件に関するさらなるガイダンスは、prEN 16251内に見つけることができます。車輌またはその一部は、性能低下した状態で仕様外で使用されることもあります。注3として、その場合、車輌と環境条件との技術的な互換性を確保するために、関連する運用規則が必要になる場合があります。コンポーネントを取り囲むマイクロクライメートは、関連する製品規格や特別な要件によって定義される場合があります。この欧州規格では、設備の乗客への影響や乗客への設備の影響は考慮されません。また、この欧州規格はクレーン、鉱山車両、ケーブルカーには適用されません。この欧州規格は地震などの自然災害にも適用されません。
The article discusses the EN 50125-1:2014 European Standard, which aims to define environmental conditions for railway equipment within Europe. The standard covers parameters such as altitude, temperature, humidity, air movement, precipitation, solar radiation, lightning, and pollution. It specifically defines the interface conditions between the train and its environment. The standard does not consider passenger effects on the equipment or equipment effects on passengers. It also does not apply to cranes, mining vehicles, cable cars, or natural disasters like earthquakes.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...