Bsi bs en 45545 5 2013 + a1 2015

BS EN 45545-5:2013+A1:2015 Incorporating November 2015 BS EN 45545-5:2013+A1:2015 BS ENcorrigendum 45545-5:2013 BSI Standards Publication Railway applications — Fire protection on railway vehicles Part 5: Fire safety requirements for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles BS EN 45545-5:2013+A1:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 45545-5:2013+A1:2015 It supersedes BS EN 45545-5:2013 which is withdrawn Together with BS EN 45545-1:2013, BS EN 45545-2:2013+A1:2015, BS EN 45545-3:2013, BS EN 45545-4:2013, BS EN 45545-6:2013 and BS EN 45545-7:2013, it supersedes BS 6853:1999 which will be withdrawn on 31 March 2016 The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by  The UK participation in its preparation was entrusted to Technical Committee FSH/19, Fire Precautions in Railway Transport 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 2015 Published by BSI Standards Limited 2015 ISBN 978 580 92564 ICS 13.220.20; 45.060.01 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 31 July 2013 Amendments/corrigenda issued since publication Date Text affected 31 October 2015 Implementation of CEN amendment A1:2015 30 November 2015 Supersession information updated in national foreword EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 13.220.20; 45.060.01 EN 45545-5:2013+A1 October 2015 Supersedes EN 45545-5:2013 English Version Railway applications - Fire protection on railway vehicles Part 5: Fire safety requirements for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles Applications ferroviaires - Protection contre les incendies dans les véhicules ferroviaires - Partie 5: Exigences de sécurité incendie pour l'équipement électrique, y compris celui des trolleybus, des autobus guidés et des véhicules sustentation magnétique Bahnanwendungen - Brandschutz in Schienenfahrzeugen - Teil 5: Brandschutzanforderungen an die elektrische Ausrüstung einschließlich der von Oberleitungsbussen, spurgeführten Bussen und Magnetschwebefahrzeugen This European Standard was approved by CEN on 10 December 2012 and includes Amendment approved by CEN on 14 August 2015 CEN 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 CEN 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 45545-5:2013+A1:2015 E BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Contents Page European foreword Introduction Scope Normative references Terms and definitions General requirements 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 Design requirements Overload protection Cabling Electrical arc protection devices Enclosure for electrical equipment Cable ducts Batteries for auxiliary power supply systems and supply circuits Switchgear Electrical emergency equipment Bonding Resistors and heating equipment 10 Locations exposed to current collection arcing 10 Forced ventilated equipment (including heating, cooling and air conditioning) 10 Flammable liquids used for insulation and cooling 10 6.1 6.2 Maintainability 10 Maintenance requirements 10 Modification of electrical equipment 11 Evaluation of conformity 11 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC 12 Bibliography 14 BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) European foreword This document (EN 45545-5:2013+A1:2015) has been prepared by Technical Committee CEN/TC 256 "Railway applications”, the secretariat of which is held by DIN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document includes Amendment approved by CEN on 2015-08-14 This document supersedes !EN 45545-5:2013" The start and finish of text introduced or altered by amendment is indicated in the text by tags !" 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 2008/57/EC For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document This series of European standards Railway applications — Fire protection on railway vehicles consists of: — Part 1: General; — Part 2: Requirements for fire behaviour of materials and components; — Part 3: Fire resistance requirements for fire barriers; — Part 4: Fire safety requirements for railway rolling stock design; — Part 5: Fire safety requirements for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles; — Part 6: Fire control and management systems; — Part 7: Fire safety requirements for flammable liquid and flammable gas installations According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Introduction This European Standard has been developed from existing fire safety regulations for railway vehicles from the International Union of Railways (UIC) and different European countries In using the operation and design categories defined in EN 45545-1, the requirements laid down in the different parts of EN 45545 will take into account the current operating conditions for European public rail transport BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Scope This Part of EN 45545 specifies the fire safety requirements for electrical equipment on railway vehicles, including that of trolley buses, track guided buses and magnetic levitation vehicles The measures and requirements, specified in this European Standard meet the objective of protecting passengers and staff in railway vehicles in the event of a fire on board by: — lowering the risk of starting a fire both during operation and as a result of technical defect and/or malfunction of the electrical equipment, — ensuring that electrical emergency equipment continues to be functional until evacuation is complete (see EN 45545-6) 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 45545-1:2013, Railway applications — Fire protection on railway vehicles — Part 1: General !EN 45545-2:2013+A1:2015", Railway applications — Fire protection on railway vehicles — Part 2: Requirements for fire behavior of materials and components EN 45545-3:2013, Railway applications — Fire protection on railway vehicles — Part 3: Fire resistance requirements for fire barriers EN 45545-4, Railway applications — Fire protection on railway vehicles — Part 4: Fire safety requirements for rolling stock design EN 45545-6, Railway applications — Fire protection on railway vehicles — Part 6: Fire control and management systems EN 50124-1, Railway applications - Insulation coordination — Part 1: Basic requirements — Clearances and creepage distances for all electrical and electronic equipment EN 50125-1, Railway applications — Environmental conditions for equipment — Part 1: Equipment on board rolling stock EN 50153, Railway applications — Rolling stock — Protective provisions relating to electrical hazards EN 50343, Railway applications — Rolling stock — Rules for installation of cabling !EN 50547, Railway applications — Batteries for auxiliary power supply systems" EN 61140, Protection equipment(IEC 61140) against electric shock — Common aspects for installation and Terms and definitions For the purposes of this document, the terms and definitions given in EN 45545-1:2013 apply BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) General requirements The electrical design requirements used for railway vehicles are supplemented by the design requirements of this European Standard In addition to the design requirements of this European Standard, electrical equipment shall be designed to withstand the mechanical, electrical and thermal stresses which are likely to be encountered in operation (see EN 50125-1) The requirements for cabling and integrity of connection are specified in EN 50343 The requirements for fire behaviour properties of materials are specified in EN 45545-2 Design requirements 5.1 Overload protection When selecting the method and setting of overload protection to be installed between the current collectors and current consumers of a railway vehicle, consideration shall be given to the following: — values of the short circuit currents; — duration of these short circuit currents; — any load side components which may modify the fault characteristics, e g the main filter reactor in a traction converter; — characteristics of the power supply and its protection devices Where neither pole of the power supply is bonded to earth, the overload protection shall be on both poles of the supply line (e g trolley buses) When selecting the method and settings of other overload protection devices (e.g fuses and circuit breakers) consideration shall be given to the following: — the normal load; — line impedance; — source impedance; — short circuit characteristics; — breaking capability of the overload protection device The unprotected parts of circuits shall be as short as possible; this shall be achieved by ensuring that protective devices and transducers for protective devices are installed as close as possible to the source of supply Precautions shall be taken to prevent a protective device from reclosing on to a known fault, where the electrical equipment is not capable of withstanding the fault current Precautions may be: — preferably fault detection equipment design; — operation instruction BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) 5.2 Cabling High power cables shall be contained in a metallic duct or a metallic conduit earth bonded to the body if they are running: — behind or inside walls; — below floors or above ceilings of passenger or staff areas; — or if they are passing in or through ventilation ducts, which are connected to passenger or staff areas Where the line supply protection device cannot be relied upon to operate within 250 ms after the occurrence of a fault, a device (arc extinguishing device) shall be fitted which can prevent progression of the arc through it along the line supply cable(s) Any cable, where reliance can be placed on the line supply protection device, and any cable that is protected by an arc extinguishing device, shall either be: — additionally insulated from the body or underframe to reduce the probability of short circuit arcing initiated by mechanical damage; — or placed in a metallic tube or a metallic conduit which is earth bonded to the body of the railway vehicle to reduce the probability of mechanical damage and to ensure the operation of the line supply protection device These requirements not apply to flexible connecting cables between body and bogies, but an arc extinguishing device may be fitted at any position in the cabling If the arc extinguishing device is based on an arc resisting material then this material should typically be a Type B arc barrier material Precautions shall be taken to ensure that vibration, thermal cycling, expansion/contraction and flexing not cause damage to cabling and that mechanical stress is not transmitted to connections 5.3 Electrical arc protection devices 5.3.1 Arc splash barrier An arc splash barrier is a device to offer protection against incandescent metal particles arising from making and/or breaking high power electrical contacts The material properties are !EN 45545-2:2013+A1:2015" 5.3.2 Arc barrier Type A defined as listed product E3C in Table of A type A arc barrier is a device to contain an electrical arc of short duration, resulting from the normal operation of high power equipment, within a prescribed region The material properties are !EN 45545-2:2013+A1:2015" defined as listed The fire resistance is defined as E15 in 5.3 of EN 45545-3:2013 product E3A in Table of 5.3.3 Arc barrier Type B A type B arc barrier is a device to contain an electrical arc, resulting from a failure of high power equipment, within a prescribed region BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) The material properties are !EN 45545-2:2013+A1:2015" defined as listed The fire resistance is defined as E60 in 5.4 of EN 45545-3:2013 product E3B in Table of 5.4 Enclosure for electrical equipment The principal function of an electrical equipment enclosure is to provide an appropriate degree of protection of equipment against external influences and a defined degree of protection against contact with live parts from any direction Where there is a risk of explosion from combustible gases inside the enclosure, measures shall be taken to safely disperse the gases or to release the overpressure Where EN 45545-3 requires that a fire barrier or partition is installed between electrical equipment and a passenger area and/or staff area, then the enclosure may be designed to provide this protection In doing so, the principal function of the enclosure shall not be affected If the enclosure is not designed to fulfil the requirements of EN 45545-3, then a fire barrier or partition shall be positioned between the enclosure and the passenger area and/or staff area to give the required protection On equipment with unprotected circuits without overcurrent or transient protection, the railway vehicle shall be protected from the effects of arcing by the use of any one or any combination of the following solutions as appropriate: — clearance and creepage distances for overvoltage category OV4 quoted in EN 50124-1 to reduce arc risk; — arc barriers Type A or Type B; — arc splash barriers; — thermal barriers providing protection against excessive heat 5.5 Cable ducts Precautions shall be taken to prevent the build up of moisture and/or fluids in tubes, conduits and ducts for cabling The dimensions of tubes, conduits and ducts for cables shall be such that the designed operating temperature of the cables is not exceeded ! 5.6 Batteries for auxiliary power supply systems and supply circuits Gases from batteries shall be vented to the exterior of the railway vehicle and shall not be vented into a passenger area or a staff area Batteries for auxiliary power supply systems shall be in accordance with EN 50547 Cables between the battery and the battery protective devices shall be insulated against short circuits Either one or both of the following shall be used: — supplementary insulation of the cable according to EN 61140; — internal insulation of the battery box with at least an electrolyte resistant insulation varnish Where neither pole of a battery is bonded to the railway vehicle body, protective devices shall be fitted to both poles If the battery layout needs interconnection cables between separate battery enclosures, BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) only the external poles, not the interconnection cables, shall have protective devices against battery circuit overcurrent." 5.7 Switchgear Switching devices shall be installed so that, for any switching operation within the declared rating of the device, switching arcs reach neither flammable parts nor metallic parts connected to the railway vehicle body Arc splash barriers or arc barriers Type A may be used for this purpose Any part of a container filled with flammable liquid (e g mineral oil, fuel) shall not form part of another enclosure housing high power switchgear Switching devices shall be able to withstand the current flow, which can occur, dependent upon the characteristics of the circuit protective device, but the switching device does not have to interrupt this current The operating coils of switching devices shall not be capable of causing a fire to start if the moving parts of the switching device fail to operate 5.8 Electrical emergency equipment The following electrical design rules are in addition to the requirements of EN 45545-4 Electrical equipment used in the emergency functions identified in EN 45545-6 shall be designed and installed in the following manner: — all the electrical equipment shall be designed and installed in such a way that its integrity is ensured until no longer required for evacuation; — cables used for emergency functions can be grouped together but shall be installed so that they are separated from high power cables This separation is achieved if they pass through separate tubes or channels or if they are installed in the same channel but separated by a cable duct partition so that the cables continue to function until no longer required for evacuation To help reduce the time that passengers and staff are confined to an area affected by fire, it may be necessary to design and/or install certain electrical functions, for example: — communication; — control of traction; — control of brakes; — control of doors and emergency – exits; — trainbus control; — fire fighting; — fire detection; such that they continue to be available until no longer required for evacuation 5.9 Bonding The dimensions of protective bonding shall be in accordance with EN 50153 BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Compliance with these design rules for protection against electrical hazards also ensures compliance with respect to fire protection 5.10 Resistors and heating equipment Measures shall be taken to prevent the risk of fire in areas where resistors and heating equipment have a surface temperature of 200 °C or more under normal or fault operating conditions Any one or any combination of the following are suitable measures: — provision of sufficient distance between the resistor and/or heating equipment and any flammable material; — avoidance of the fall and accumulation of dirt on protective grills; — the use of non-combustible insulation between the resistors and/or heating equipment and any flammable material; — the use of radiation protection plates between the resistors and/or heating equipment and any flammable material; — the use of two separate levels of protective device, each capable of independently cutting off the energy supply to the heating equipment or resistors: — the first level shall be resettable by operating staff or shall automatically reset; — the second level shall be resettable by maintenance staff only; — one of these two levels shall detect overtemperature; — level one protection may be provided by an indication to the occupied drivers cab so long as the driver can switch off the energy supply by a means that is independent of level two 5.11 Locations exposed to current collection arcing Components that are in the vicinity of the current collector, and which can be reached by the effects of arcs from the current collector, shall fulfil the requirements for the materials specified in EN 45545-2 5.12 Forced ventilated equipment (including heating, cooling and air conditioning) In the event of a fire, the airflow from forced ventilated equipment, which could affect passengers and/or staff, shall be capable of being shut down Further requirements are set out in EN 45545-4 and EN 45545-6 5.13 Flammable liquids used for insulation and cooling Flammable liquids shall not be used for insulation and cooling of high-powered devices unless this is unavoidable for technical reasons Maintainability 6.1 Maintenance requirements Electrical equipment that requires maintenance shall be easily accessible Electrical equipment shall be maintained so that potential ignition sources not develop during the life of the equipment 10 BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) The quality and frequency of maintenance shall be sufficient to prevent the risk of fire and normally includes one or more of the following activities: — inspection; — cleaning; — repair; — replacement; — testing These requirements, together with any inspection and/or testing requirements, shall be declared by the supplier 6.2 Modification of electrical equipment Modifications to electrical equipment shall meet all of the requirements of this European Standard and shall not adversely affect the initial fire safety rules Evaluation of conformity See EN 45545-1 11 BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Annex ZA (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 CEN/CENELEC by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 2008/57/EC 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 ZA.1 for High Speed Rail Rolling Stock, Table ZA.2 for Conventional Rail Locomotive and Passenger Rolling Stock and Table ZA.3 for Safety in Railway Tunnels 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 ZA.1 — Correspondence between this European Standard, the HS TSI Rolling Stock (published in the Official Journal L 84 on 26 March 2008) and Directive 2008/57/EC Clause(s)/sub-clause(s) of this European Standards Chapter/§/points/ of HS TSI RST The whole standard is 4.2.7.2 Fire safety applicable Essential Requirements (ER) of Directive 2008/57/EC Comments General Requirements 1.1 Safety; 1.1.4 2.4 Rolling Stock 2.4.1 Safety; 8th§ 2.4.2 Reliability and availability EN 45545 specifies general features to be implemented in the design and manufacturing of Rolling stock Essential Requirements (ER) of Directive 2008/57/EC Comments Table ZA.2 — Correspondence between this European Standard, the CR TSI Locomotive and Passenger Rolling Stock (published in the Official Journal L 139 on 26 May 2011) and Directive 2008/57/EC Clause(s)/sub-clause(s) of this European Standards Chapter/§/points/ of CR TSI LOC&PAS The whole standard is 4.2.10 Fire safety and General Requirements applicable evacuation 1.1 Safety; 1.1.4 2.4 Rolling Stock 2.4.1 Safety; 8th§ 2.4.2 Reliability and availability 12 EN 45545 specifies general features to be implemented in the design and manufacturing of Rolling stock BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Table ZA.3 — Correspondence between this European Standard, the CR/HS TSI Safety in Railway Tunnels (published in the Official Journal L 64 on 07 March 2008) and Directive 2008/57/EC Clause(s)/sub-clause(s) of this European Standards Chapter/§/points/ of HS/CR TSI SRT Essential Requirements (ER) of Directive 2008/57/EC The whole standard is 1.1.3 Fire safety categories General Requirements applicable of passenger rolling stock 1.1 Safety; 1.1.4 2.4 Rolling Stock 2.4.1 Safety; 8th§ 2.4.2 Reliability and availability Comments EN 45545 specifies general features to be implemented in the design and manufacturing of Rolling stock WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard 13 BS EN 45545-5:2013+A1:2015 EN 45545-5:2013+A1:2015 (E) Bibliography 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 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 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 14 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 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