Bsi bs en 50125 1 2014

BS EN 50125-1:2014 BSI Standards Publication Railway applications — Environmental conditions for equipment Part 1: Rolling stock and on-board equipment BS EN 50125-1:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 50125-1:2014 It supersedes BS EN 50125-1:1999 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee GEL/9/2, Railway Electrotechnical Applications - Rolling stock A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 72995 ICS 29.280; 45.060.10 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2014 Amendments issued since publication Date Text affected BS EN 50125-1:2014 EUROPEAN STANDARD EN 50125-1 NORME EUROPÉENNE EUROPÄISCHE NORM April 2014 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 Conditions d'environnement pour le matériel Partie 1: Equipement embarqué du matériel roulant Bahnanwendungen – Umweltbedingungen für Betriebsmittel – Teil 1: Betriebsmittel auf Bahnfahrzeugen 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 BS EN 50125-1:2014 EN 50125-1:2014 -2- Contents Page Foreword Scope .4 Normative references .4 Terms and definitions 4 Environmental conditions 4.1 General 4.2 Altitude 4.3 Temperature 4.4 Humidity 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 BS EN 50125-1:2014 -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 implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with this document have to be withdrawn (dop) 2015-02-24 (dow) 2017-02-24 This document supersedes EN 50125-1:1999 EN 50125-1:2014 is a revision of EN 50125-1:1999 with an extended scope to cover mechanical 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 BS EN 50125-1:2014 EN 50125-1:2014 -4- Scope This European Standard intends to define environmental conditions within Europe NOTE 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 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 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) 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) Terms and definitions For the purposes of this document, the following terms and definitions apply BS EN 50125-1:2014 -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) 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 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 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 BS EN 50125-1:2014 EN 50125-1:2014 -6- Table — Classes of altitude range Classes Altitude range relative to sea level m NOTE A1 Up to1 400 A2 Up to 000 A3 Up to 200 AX More than 400 The mainline railway lines with the highest altitudes are – Gotthard (Switzerland): 151 m, – Brenner (Italy): 371 m, – Semmering (Austria): 985 m, – Finse: (Norway): 222 m NOTE Altitude is relevant, in particular for air pressure level and its consequence on cooling systems, air conditioning systems, diesel engines and electrical clearances When the class AX is specified, the maximum altitude should be provided The air pressure shall be assumed according to HD 478.2.3 S1 4.3 Temperature The vehicle and its equipment shall operate as specified for the different classes of temperatures given in Table 2, column Table — Classes of air temperatures Classes NOTE (1) (2) Air temperature external to vehicle Inside vehicle compartment temperature °C °C T1 -25 +40 -25 +50 T2 -40 +35 -40 +45 T3 -25 +45 -25 +55 TX -40 +50 -40 +60 Class T1 of Table corresponds to Class 5K2 of EN 60721-3-5 The temperatures in column (2) are informative as the maximum and minimum within a vehicle and should be considered in the design of equipment within the vehicle Where different operational temperatures are considered due to local knowledge, or where operational temperature ranges are limited by heating or cooling systems these shall be agreed and stated in the specification A reference temperature of 25 C is considered as being the permanent temperature for which the effects on the material ageing are equivalent to those of the climatic temperature during the lifetime When stated in product or equipment standards, particular requirements apply BS EN 50125-1:2014 -7- EN 50125-1:2014 Where particular system attributes or performances are disproportionally affected by extremes of temperature, it is permissible to derate such equipment and to install it in a controlled climatic environment The temperature range shall be defined in the specification The temperatures inside vehicle are values measured in free air out of the heat emitting elements It shall be taken into account that the external ambient air temperature in special locations such as near the ballast or over the roof may exceed the external open air temperature In this case, the temperature level to be considered shall be defined in the specification NOTE The yearly average temperature for cubicles inside the rolling stock defined in EN 50155 is conventionally taken as 45 C for all classes (e g for reliability calculation) 4.4 Humidity The following external humidity levels shall be assumed: − yearly average: ≤ 75 % relative humidity; − on 30 d in the year continuously: between 75 % and 95 % relative humidity; − on the other days occasionally: between 95 % and 100 % relative humidity; − maximum absolute humidity: 30 g/m occurring in tunnels An operationally caused infrequent and slight moisture condensation shall not lead to any malfunction or failure The psychometric charts of Figures and give the ranges of variation of the relative humidity for the different temperature classes that will not be exceeded for more than 30 d per year: BS EN 50125-1:2014 EN 50125-1:2014 -8- Relative air humidity (%) Absolute air humidity (g/m ) Air temperature (°C) Key — — — — maximum for tunnel Figure — Humidity ranges for temperature classes T1 and TX BS EN 50125-1:2014 -9- EN 50125-1:2014 Absolute air humidity (g/m ) 100 70,0 50,0 30,0 20,0 10,0 5,0 3,0 2,0 1,0 0,5 0,2 0,3 0,1 0,05 0,02 0,03 0,01 0,005 0,002 0,003 100 0,001 Absolute air humidity (g/m ) 90 80 Relative air humidity (%) 70 60 T2 50 T3 40 T2 30 T3 20 10 –80 –70 –60 –50 –40 –30 –20 –10 10 20 30 40 50 60 Air temperature (°C) Maximum for tunnel Air temperature (°C) Key — — — — maximum for tunnel Figure — Humidity ranges for temperature classes T2 and T3 At cooled surfaces, 100 % relative humidity may occur causing condensation on parts of equipment This shall not lead to any malfunction or failure Sudden changes of the air temperature local to the vehicle may cause condensation of water on parts of equipment with a rate of K/s and a maximum variation of 40 K BS EN 50125-1:2014 EN 50125-1:2014 - 10 - These conditions, particularly occurring when entering or leaving a tunnel shall not lead to any malfunction or failure of the equipment In winter melting ice and snow accumulated on the vehicle may lead to high humidity levels in the depot, condensate water on the vehicle may freeze again when the vehicle is leaving the depot 4.5 Air movement 4.5.1 Wind For the purposes of equipment operation e.g fan systems, cooling systems the max wind speed of 35 m/s at standstill shall be assumed Exceptionally higher wind speed, up to maximum 50 m/s at standstill, may occur In this case, the equipment performance may be temporarily affected but no permanent damage shall occur Cross wind assessment of railways is described in EN 14067-6 4.5.2 Surrounding air The relative movement of surrounding air in respect to the vehicle shall be defined where applicable Pressure pulses (e.g due to passing vehicles or entering a tunnel) shall be also taken into account 4.6 Rain Rain rate of mm/min shall be taken into account according to Class 5K3 of EN 60721-3-5 The effect of rain shall be assumed depending on the equipment installation together with wind and vehicle movement 4.7 Snow and hail Consideration shall be given to the effect of snow and/or hail The maximum diameter of the hailstones shall be taken as 15 mm, larger diameter may occur exceptionally Consideration shall be given to all forms of snow which may occur Large quantities of snow in powder form may pass into the vehicle and melt Accumulation of snow may limit performance of all kind of equipment Powder snow is normally to be considered at low winter temperature, wet snow is likely to occur at temperatures close to °C Rear vehicles of a moving train are most affected Moreover, during standstill periods, the melted snow may freeze again The operational snow level requirement considering the operational and snow clearing methods used shall be stated in the specification The vehicle shall perform as specified for the different classes of snow height given in Table Table — Classes of snow levels Classes Snow level above top of rail [mm] S1 to 250 S2 250 to 400 S3 400 to 800 BS EN 50125-1:2014 - 11 - 4.8 EN 50125-1:2014 Ice The effect of ice forming or falling shall be assumed on all equipment installed both inside and outside the vehicle 4.9 Solar radiation Vehicle parts and equipment exposed to the effect of solar radiation, prescribed in EN 60721-3-5, shall remain unaffected Depending on the latitude and according to classes 5K2 or 5K3 of EN 60721-3-5, the thermal effect of solar radiation shall be taken as given in Table Table — Solar radiation Classes Solar radiation W/m² R1 (low) 700 R2 (high) 120 Care shall be taken for the effect of UV radiation on the equipment exposed to solar radiation; this applies especially for synthetic materials The maximum duration of the exposure to solar radiation shall be conventionally taken as h unless otherwise specified See also EN 60721-3-0 for information 4.10 Lightning Consideration shall be given to the effects of lightning on the vehicle For protection against lightning on the vehicle refer to EN 50124-2 4.11 Pollution Pollutions effects created by interaction of rolling stock and its equipment with the following list of substances shall be assumed: – chemically active substances Class 5C2 of EN 60721-3-5; – biologically active substances Class 5B2 of EN 60721-3-5; – dust defined by Class 5S2 of EN 60721-3-5; – grasses and leaves, pollen, flying insects, fibres etc; – sand according to EN 60721-3-5; – sea spray according to Class 5C2 of EN 60721-3-5 NOTE Reference to standards in this clause is relevant only for the definitions of substances having a polluting effect The severity of pollution will depend upon the location of the equipment BS EN 50125-1:2014 EN 50125-1:2014 - 12 - Means may be provided to reduce pollution by the effective use of protection In this case the protection against water and solid objects shall be specified using the protection degree definition of EN 60529 There are also internal causes of pollution due to the equipment itself (ionisation etc.) 4.12 Large animals on the track In some environments the frequent presence of free ranging large animals shall be assumed The weight of large animals is in the range of 200 kg up to 800 kg BS EN 50125-1:2014 - 13 - EN 50125-1:2014 Annex ZZ (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers all relevant essential requirements as given in Annex lll of the EC Directive 2008/57/EC (also named as New Approach Directive 2008/57/EC Rail Systems: Interoperability) Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the clauses of this standard given in Table ZZ.1 for “High Speed Rail Rolling Stock”, Table ZZ.2 for “Conventional Rail Locomotive and Passenger Rolling Stock” confers, within the limits of the scope of this standard, a presumption of conformity with the corresponding Essential Requirements of that Directive and associated EFTA regulations Table ZZ.1 - Correspondence between this European Standard, the HS TSI Rolling Stock (published in the Official Journal L 84 on 26 March 2008, p 132) and Directive 2008/57/EC Clauses of this European Standard Chapter / § / points / of HS TSI RST 4.3 Temperature 4.2.6.1 Environmental conditions Essential Requirements (ER) of Directive 2008/57/EC Annex III Comments At present (2014), the TSI references referrers to the version from 1999 of this standard; this shall be updated/modified in TSI HS Rolling Stock: 2008/232/EC Rev 2401-2013 Table ZZ.2 - Correspondence between this European Standard, the Conventional Rail TSI “Locomotive and Passenger Rolling Stock” (published in the Official Journal L 139 on 26 May 2011, p.1) and Directive 2008/57/EC Clauses of this European Standard 4.2 Altitude Chapter / § / points / of LOC & PAS TSI RST 4.2.6.1.1 Altitude 4.3 Temperature 4.2.6.1.2 Temperature 4.4 Humidity 4.2.6.1.3 Humidity 4.6 Rain 4.2.6.1.4 Rain 4.7 Snow and hail 4.8 Ice 4.2.6.1.5 Snow, ice and hail 4.9 Solar radiation 4.2.6.1.6 Solar radiation Essential Requirements (ER) of Directive 2008/57/EC Annex III Comments At present (2014), the TSI references referrers to the version from 1999 of this standard; this shall be updated within the TSIs TSI LOC & PAS (Rev 24.01.2013 /002.0011), Annex J, 4.2.6.1.1 to 7, Environmental conditions shall also be updated/modified WARNING: Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard BS EN 50125-1:2014 EN 50125-1:2014 - 14 - Bibliography [1] prCEN/TR 16251 1), Railway application — Environmental conditions — Design and test of rolling stock under severe conditions [2] EN 50155, Railway applications — Electronic equipment used on rolling stock [3] EN 50163, Railway applications — Supply voltages of traction systems [4] EN 60721-1, Classification of environmental conditions — Part 1: Environmental parameters and their severities (IEC 60721-1) [5] EN 60721-3-0, Classification of environmental conditions — Part 3: Classification of groups of environmental parameters and their severities — Introduction (IEC 60721-3-0) [6] HD 478.2.1 S1, Classification of environmental conditions — Part 2: Environmental conditions appearing in nature —Temperature and humidity (IEC 60721-2-1) [7] HD 478.2.2 S1, Classification of environmental conditions — Part 2: Environmental conditions appearing in nature —Precipitation and wind (IEC 60721-2-2) [8] HD 478.2.7 S1, Classification of environmental conditions — Part 2: Environmental conditions appearing in nature — Fauna and flora (IEC 60721-2-7) [9] 2008/57/EC, Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community [10] 2008/232/EC, Commission Decision of 21 February 2008 concerning the technical specification for interoperability relating to the rolling stock subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Directive 96/48/EC [11] 2011/291/EU, Commission Decision of 26 April 2011 concerning a technical specification for interoperability relating to the rolling stock subsystem - 'Locomotives and passenger rolling stock' of the trans-European conventional rail system ——————— 1) Currently at Enquiry stage This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by 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