Bsi bs en 15437 1 2009

BRITISH STANDARD Railway applications — Axlebox condition monitoring — Interface and design requirements Part 1: Track side equipment and rolling stock axlebox ICS 45.060.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 15437-1:2009 BS EN 15437-1:2009 National foreword This British Standard is the UK implementation of EN 15437-1:2009 The UK participation in its preparation was entrusted to Technical Committee RAE/3/-/5, Hot axle bearing detection "Normative" - A (mandatory) requirement defined as an "expression in the content of a document conveying criteria to be fulfilled if compliance with the document is to be claimed and from which no deviation is permitted" [CEN/CENELEC Internal Regulations, Part 3: Rules for the Structure and Drafting of European Standards (PNE-Rules)] "Informative" - Information (not mandatory) intended to assist the understanding or use of the document Informative annexes shall not contain requirements, except as optional requirements (For example, a test method that is optional may contain requirements but there is no need to comply with these requirements to claim compliance with the document.) 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 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 June 2009 © BSI 2009 ISBN 978 580 56197 Amendments/corrigenda issued since publication Date Comments BS EN 15437-1:2009 EUROPEAN STANDARD EN 15437-1 NORME EUROPÉENNE EUROPÄISCHE NORM March 2009 ICS 45.060.01 English Version Railway applications - Axlebox condition monitoring - Interface and design requirements - Part 1: Track side equipment and rolling stock axlebox Applications ferroviaires - Surveillance des btes d'essieux - Exigences liées aux interfaces - Partie 1: Equipments des voies et conception des btes d'essieux pour matériel roulant Bahnanwendungen - Zustandsüberwachung von Radsatzlagern - Schnittstellen und Gestaltungsanforderungen - Teil 1: Heißläuferortungsanlagen und Radsatzlagergehäusegestaltung This European Standard was approved by CEN on 21 February 2009 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 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 Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 15437-1:2009: E BS EN 15437-1:2009 EN 15437-1:2009 (E) Contents Page Foreword 3 Introduction 4 Scope 5 Normative references 5 Terms and definitions 6 Symbols and abbreviations 9 5.1 5.1.1 5.1.2 5.1.3 5.1.4 5.2 5.2.1 5.2.2 5.2.3 5.3 5.4 5.5 Rolling Stock Requirements 10 Target zone 10 General 10 Dimensions of the target area 10 Position of the centre of the target area in the XY plane 11 Visibility requirements for the target area 11 Prohibitive zone 11 General 11 Dimensions of the prohibitive zone 11 Position of the centre of the prohibitive zone in the XY plane 12 Electromagnetic interference emissions 13 Design drawings 13 Protective finish 13 6.1 6.2 6.3 HABD requirements for its interface with rolling stock 13 General 13 HABD temperature measuring zone 13 HABD installation requirements 15 7.1 7.2 7.3 HABD system requirements 16 HABD functions 16 HABD temperature alarms 16 HABD general requirements 17 Annex A (informative) An example of an alternative HABD temperature measuring zone 18 Annex B (informative) Guidance for HABD installation 20 Annex C (informative) Accuracy of the HABD’s calculated temperature of an axlebox 21 Annex D (informative) Examples of HABD system temperature alarm levels across Europe 22 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of 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 23 Bibliography 25 BS EN 15437-1:2009 EN 15437-1:2009 (E) Foreword This document (EN 15437-1:2009) 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 September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009 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 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive 96/48 and EC Directive 2001/16, as modified by EC Directive 2004/50 For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom BS EN 15437-1:2009 EN 15437-1:2009 (E) Introduction Failed axle bearings on rolling stock create a hazard to the safe operation of the railway If an axle bearing fails whilst rolling stock is in-service there is the potential for a catastrophic event A catastrophic event may result in fatalities, severe damage to rolling stock and/or the infrastructure and a risk that rolling stock may derail and/or a fire may develop One indication that a bearing is about to fail is a rise in the heat generated by the bearing Bearings that are about to fail may therefore be detected by monitoring their temperature to identify an unacceptable rise World-wide experience shows that one way of managing the risk is by installing trackside Hot AxleBox Detectors (HABDs) to monitor the in-service temperature of rolling stock axleboxes The sensors of a trackside HABD measure the thermal radiation emitted from the axleboxes of in-service rolling stock The level of thermal radiation is influenced by the emmissivity of the axlebox surface, which is influenced by the material, design, surface finish and operational conditions (dust, rain, etc) Even though operational conditions are continually changing the surface emmissivity of the axlebox, long term experience indicates that such changing conditions can be tolerated This part of EN 15437 covers the monitoring of axlebox temperature by trackside HABD It was developed by Working Group 35 "Hot Box Detection" of CEN Technical Committee 256 Railway Applications It defines the minimum requirements for the interface between a trackside HABD and rolling stock, to ensure that the system works It is important to note that Clause 1, Scope, sets out the minimum requirements for the interface The requirements set out in this document are based on long term existing rules, practices and procedures developed and currently in use by European member railway undertaking’s (RUs) and infrastructure managers (IMs) The following principles have been applied: a) The railway system requires technical rules in order to ensure an acceptable interface between rolling stock and trackside HABD b) In view of the increasing significance of international traffic, the standardisation of this interface is required c) It is of particular importance that the existing level of safety and reliability is not compromised d) The Cartesian co-ordinate system is used to define dimensions and positions, that is X is longitudinal, Y is lateral and Z is vertical Some rolling stock, according to their performance or design, is fitted with on-board equipment to monitor axle bearings for potential overheating However, in most cases, axle bearings continue to be monitored by trackside Hot Axle Bearing Detectors which is the subject of this standard Part of EN 15437, which is currently being developed, covers on-board temperature monitoring of axle bearings Alternative technology is available, or being developed, to monitor the condition of axle bearings, using vibration sensors, thermocouples, etc and may in the future be addressed by additional parts to this standard BS EN 15437-1:2009 EN 15437-1:2009 (E) Scope This part of EN15437 defines the minimum characteristics for the interface between a trackside Hot Axlebox Detector (HABD) and Rolling Stock (RST) that comply with the European Directives for Interoperability to ensure that the minimum functional requirement of the interface is achieved The minimum requirements of the interface apply to: a) Rolling stock conforming to standard European railway gauge, that is 1435mm; b) Rolling stock axles fitted with outboard bearings; NOTE of 5.2 The design of rolling stock axles fitted with inboard bearings should respect the requirements set out in Note c) Rolling stock with a maximum operational speed of up to and including 250 km/h; NOTE That is conventional rail and class high speed rail rolling stock as defined in the rolling stock TSIs NOTE Interoperable rolling stock designed for speeds above 250km/h (class high speed rolling stock) are mandated to have on-board equipment for axlebox condition monitoring The requirements for on-board equipment are described in part of this standard which is currently under development NOTE Interoperable rolling stock designed for speeds above 250km/h (class high speed rolling stock) are outside the scope of this Part of the standard However, if class high speed trains are required to be monitored by HABDs their target area should comply with the requirements specified in this standard, except where stated otherwise d) Trackside HABDs that are required to monitor conventional rail and class high speed rail rolling stock The rolling stock requirements of the interface are described in Clause and for the HABD requirements of the interface are described in Clause The scope of this part (part 1) of the standard does not include:  Hot Wheel (Hot Disc) Detectors (HWDs) However, HWD are often installed in combination with trackside HABD to provide a dual monitoring system This standard does not prevent the use of such a combination;  how a HABD measures the temperature and identifies axle box position This is part of an individual equipment design and not part of the functional requirements of this standard;  operational requirements for acting on the information reported by the HABD system;  maintenance requirements for HABD systems Normative references The following referenced documents are required for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 15273-3, Railway applications — Gauges — Part 3: Obstacles gauges EN 50121-3-1, Railway applications — Electromagnetic compatibility — Part 3-1: Rolling stock — Train and complete vehicle EN 50121-4, Railway applications — Electromagnetic compatibility — Part 4: Emission and immunity of the signalling and telecommunications apparatus BS EN 15437-1:2009 EN 15437-1:2009 (E) EN 50125-3, Railway applications — Environmental conditions for equipment — Part 3: Equipment for signalling and telecommunications EN 60950-1, Information technology equipment — Safety — Part 1: General requirements (IEC 609501:2005, modified) ISO 14837-1, Mechanical vibration — Ground-borne noise and vibration arising from rail systems — Part 1: General guidance Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 axle bearing bearing or bearing assembly on a rail vehicle axle that transmits a proportion of the weight of the rail vehicle directly to the wheelset NOTE For the purpose of this definition bearings associated with the mounting of traction motors or traction drives are excluded 3.1.1 inboard axle bearing axle bearings that are positioned on the wheelset axle between the wheels of the wheelset 3.1.2 outboard axle bearing axle bearings that are positioned on the wheelset axle ends outside of the space between the wheels of the wheelset 3.2 axlebox structure, including for example cartridge bearing adaptor, which houses, or is in contact with, the axle journal bearing and provides an interface with the bogie and/or suspension arrangement 3.3 hot axlebox detector (HABD) trackside system that includes:  sensors that measure the thermal radiation emitted from a defined area on each axlebox of a passing rail vehicle;  data processing that calculates a temperature for each axlebox from these measured data;  data processing that identifies signs that an axlebox is (or axleboxes are) overheated;  communication link to transmit and receive data 3.4 target zone defined area on the underside of an axlebox that is designed to have its temperature monitored by a HABD 3.5 target area plan view dimensions, that is in the XY plane, of the target zone 3.6 axlebox temperature temperature of the target zone as calculated by a HABD BS EN 15437-1:2009 EN 15437-1:2009 (E) 3.7 differential temperature temperature difference between the two axlebox temperatures of a wheelset, or of a pair of wheels at the same position, as calculated by the HABD 3.8 temperature alarm indication that a calculated axlebox temperature has exceeded a preset temperature level 3.8.1 hot temperature alarm indication that a calculated axlebox temperature has exceeded a preset hot temperature level 3.8.2 warm temperature alarm indication that a calculated axlebox temperature has exceeded a preset warm temperature level 3.8.3 differential temperature alarm indication that a calculated differential temperature, between the left and right axleboxes of a wheelset, has exceeded a preset differential temperature level 3.8.4 train-side differential temperature alarm indication that a calculated differential temperature, between the temperature of the axlebox compared to the average temperature of all the axleboxes along its side of the train, has exceeded a preset train-side differential temperature level 3.9 prohibitive zone zone in which heat sources such as exhausts, which might influence the behaviour of a HABD, are excluded or thermally shielded 3.10 track coordinates track coordinates, Figure 1, are based on the right hand rule Cartesian coordinate system, where the positive X-axis (longitudinal) is along the track in the direction of travel, the Z-axis is vertically upwards and the origin is at the centre of the track and level with the top of the rail NOTE The Y-axis is the lateral axis BS EN 15437-1:2009 EN 15437-1:2009 (E) Key Centre of track Figure ― Track Coordinates 3.11 rolling stock coordinates rolling stock coordinates, Figure 2, are based on the right hand rule Cartesian coordinate system, where the positive X-axis (longitudinal) is along the vehicle in the direction of travel, the Z-axis is vertically upwards and the origin is at the centre of a wheelset’s axle NOTE The Y-axis is the lateral axis Key Centre of axle (or pair of wheels) Figure ― Rolling Stock Coordinates BS EN 15437-1:2009 EN 15437-1:2009 (E) 5.2.3 Position of the centre of the prohibitive zone in the XY plane a) YPZ in the lateral direction (Y-axis) measured relative to the centre of the axle (or centre of a pair of wheels at the same location), where YPZ shall be 1080 mm ± mm; b) In the longitudinal direction (X-axis) it shall be congruent with the centre line of the axle ± mm Key: Centre line of vehicle Centre line of target area Centre line of axle Target area Prohibited zone for other heat sources Figure ―Dimensions of the prohibitive zone (PZ) in the XY plane (viewed from below) showing a possible position of a target area 12 BS EN 15437-1:2009 EN 15437-1:2009 (E) 5.3 Electromagnetic interference emissions Rolling stock shall be designed to minimize electromagnetic interference emissions (EMC) in accordance with EN 50121-3-1 NOTE The EMC of the rolling stock should not affect the functional behaviour of the HABD system, for example by incorrectly triggering the HABD to indicate the presence of a wheelset when a wheelset is not present 5.4 Design drawings The target zone shall be identified on the rolling stock axlebox design drawings 5.5 Protective finish This standard does not specify gloss factor or colour for the protective finish of an axlebox NOTE This standard intentionally does not specify the emmissivity requirements for the external finish of the axlebox surface or its target area This is because the condition of the external finish of the axlebox surface is variable and uncontrollable, depending on the operational and environmental profiles NOTE This standard does not prevent the use of special paint or surface finish with high emmissivity properties NOTE This standard intentionally does not require performance testing of axleboxes in accordance with EN 12082 in order to establish any reference temperature or performance characteristics for a target area 6.1 HABD requirements for its interface with rolling stock General This chapter contains the requirements for the HABD side of the interface The HABD needs to take at least one discrete measurement of the thermal radiation from within the rolling stock’s minimum target area for each axlebox, as defined in Clause To achieve this HABD need to take thermal measurements from within the temperature measuring zone (TMZ), as defined in this clause 6.2 HABD temperature measuring zone The temperature measuring zone is an area fixed in space (relative to the track), in which a HABD shall focus to monitor the temperature of the axleboxes of passing rolling stock Figure shows the minimum dimensions and the position of the temperature measuring zone relative to the track coordinates in the YZ plane 13 BS EN 15437-1:2009 EN 15437-1:2009 (E) Key: Centre line of track Top of rail Figure ―Dimensions and position for the temperature measuring zone (TMZ) 14 BS EN 15437-1:2009 EN 15437-1:2009 (E) The dimensions of the temperature measuring zone taking into account mechanical tolerances shall be: a) Lateral width, WTMZ, greater than or equal to 80 mm, from YTMZ1 = 1040 mm to YTMZ2 = 1120 mm; b) Vertical height, HTMZ, shall be 240 mm, between ZTMZ1 = 260 mm and ZTMZ2 = 500 mm The HABD shall scan within the temperature measuring zone; taking at least one discrete measurement from within the temperature measuring zone NOTE In requiring that at least one discrete measurement within the temperature measuring zone is taken, this standard is not mandating a multi-look HABD It does however provide the opportunity for a single sensor HABD system to monitor axlebox temperatures (see 6.2 Note 2) Until interoperability is complete across the Trans European Network (TEN) multi-look systems may enable trackside HABD to monitor the axlebox temperatures of all rolling stock including those which not comply with this standard NOTE Under static conditions there is a central portion of the temperature measuring zone, that is from YTMZC1 = 1070 mm to YTMZC2 = 1090 mm (see shaded zone in Figure 5), which overlaps with the range of possible positions of the rolling stock’s target area (defined in Clause 5) NOTE The height of the temperature measuring zone is defined to accommodate the variation in height of the rolling stock target zone which is dependent on axlebox design and wheel diameter NOTE Interoperable rolling stock has a target area width of at least 50 mm which should lie within the temperature measuring zone NOTE Where an HABD focuses within an alternative temperature measuring zone to that defined in this standard, the IM should demonstrate that an equivalent level of safety is achieved for interoperable rolling stock An example of an alternative HABD temperature measuring zone is provided in informative Annex A The HABD shall measure thermal radiation emitted from the target zone of rolling stock, which have a minimum target area length of 100 mm, at speeds from km/h up to 250 km/h NOTE If a HABD is installed on track with a line speed above 250 km/h, it should be designed to measure thermal radiation emitted from class rolling stock which have a minimum target area length of 130 mm This is an addition to the requirements set out in this chapter for HABD installed on track with a line speed up to 250 km/h NOTE To fulfil the above requirements it is recommended that a HABD scans nominally in a vertical direction (that is to within degrees referenced from the Z-axis with an origin at rail level) 6.3 HABD installation requirements The interface of the rolling stock and the HABD is not static Therefore, the dynamics of the rolling stock, such as the lateral movement of the wheelset relative to the track position, need to be taken into account Furthermore, allowance for the possible displacement of the HABD relative to the track position over time has also to be considered Therefore, HABD shall be installed on straight track or on track with curve radii greater than 10,000 m, and at least 500 m ahead of track transitions, such as points and crossings NOTE This standard assumes that the effective relative lateral movement between the wheelsets of the rolling stock and the track is less than ± 10 mm If this parameter cannot be ensured then an alternative method of managing the risk, such as the installation of multi beam HABD will be considered NOTE Strategic installation requirements are intentionally not given in this standard Each IM needs to define how often and where HABD should be installed as part of their developed safety strategy For example, the geographical position relative to track features such as bridges, tunnels, points and crossings etc, to avoid stopping rolling stock on, in or across such features, which might introduce or increase the risk from the overheating axle bearing and/ or unduly impede operations Informative Annex B provides further information for consideration when installing trackside HABD 15 BS EN 15437-1:2009 EN 15437-1:2009 (E) 7.1 HABD system requirements HABD functions The purpose of an HABD system is to monitor the temperature of the axleboxes of passing rolling stock and identify axleboxes (and their position) which have an unacceptable temperature, and communicate that information To achieve this, the following functions are considered essential requirements of the HABD system: a) acknowledge rolling stock presence and prepare to measure the thermal radiation of its axleboxes; b) measure the thermal radiation and convert to corresponding temperatures and identify temperatures with respective axleboxes; c) compare each axlebox temperature with the preset hot temperature alarm level; d) identify axleboxes that exceed the preset hot temperature alarm level; e) calculate differential temperature for each wheelset and compare with the preset differential temperature alarm level; f) identify axleboxes that exceed the preset differential temperature alarm level; g) prepare a health report for the rolling stock identifying as a minimum the position and temperature of all axleboxes and wheelsets that have exceeded the preset levels, including the HABD site location identification tag, date and time of the report; h) communicate a rolling stock health report; i) acknowledge rolling stock departure and switch to standby mode; j) conduct HABD self assessment diagnostics; k) prepare HABD health report; l) communicate HABD health report NOTE A suggested accuracy for the axlebox calculated temperature is defined in Annex C NOTE This part of EN15437 intentionally does not specify protocol syntax, protocol semantics or electrical characteristics of the HABD communication interface NOTE This part of EN15437 intentionally does not specify the time frame in which the rolling stock health report should be communicated However, the position of the HABD site relative to train control signals need to be considered as this may influence the management of the rolling stock movements when the health report includes detail of temperature alarm levels have been exceeded 7.2 HABD temperature alarms The HABD shall have at least the following preset temperature alarms: a) hot temperature alarm (see 3.8.1); b) warm temperature alarm (see 3.8.2); c) differential temperature alarm (see 3.8.3) NOTE This part of EN 15437 intentionally does not specify values for the temperature alarm levels This is because temperature alarm levels are relevant to the rolling stock that will be monitored by individual HABD installations and set at the discretion of the IM and RU Across Europe different temperature alarm levels have been set to reflect the experience 16 BS EN 15437-1:2009 EN 15437-1:2009 (E) and knowledge of the specific range of rolling stock, the climatic conditions, the topography and the specific algorithm architecture of the HABD systems, such as the calculation and relevance of ambient temperature Informative Annex D gives some information on the range of temperatures alarm levels that are set at HABD system installations across Europe NOTE This part of EN 15437 intentionally does not specify the rules for how ambient temperature should be considered when calculating the target area temperatures NOTE These temperature alarm types are a minimum requirement and are common across current European HABD installations This standard does not exclude the use of other temperature alarms, such as a train-side differential temperature alarm (see 3.8.4) NOTE This part of EN 15437 intentionally does not specify the use of multiple temperature alarm levels for different rolling stock types (or for individual rolling stock vehicles) However, this standard does not prevent the use of multiple temperature alarm levels for different rolling stock 7.3 HABD general requirements The HABD system shall take into account the appropriate requirements referenced within the following standards for: a) the gauge requirements set out in EN 15273-3, the HABD trackside components/equipment shall lie outside of the applicable gauge; b) the EMC for trackside components set out in EN 50121-4; c) the Environmental conditions for signalling and telecommunications set out in EN 50125-3; d) the general safety requirement for the information technology equipment set out in EN 60950-1; e) the general guidance on mechanical vibration for ground-borne noise and vibration arising from rail systems set out in ISO 14837-1 17 BS EN 15437-1:2009 EN 15437-1:2009 (E) Annex A (informative) An example of an alternative HABD temperature measuring zone A number of European member states have installed HABD systems that focus on a rolling stock target area that is significantly different to the one defined in this standard but which they consider mitigates the addressed risk to a similar level and to their satisfaction An alternative target area, which is adopted by a number of the European member states (about 40% of European HABD installations), is located at the back of the axle bearing where it abuts the journal For these HABD systems the dimensions for an alternative temperature measuring zone are as given below: Key: Centre line of track Top of rail Figure A.1 ―Dimensions and position for an alternative temperature measuring zone (TMZ) 18 BS EN 15437-1:2009 EN 15437-1:2009 (E) The dimensions of an alternative temperature measuring zone taking into account mechanical tolerances may be: a) Lateral width, WTMZ, greater than or equal to 50 mm, from YTMZ1 = 840 mm to YTMZ2 = 890 mm; b) Vertical height, HTMZ, = 240 mm, between ZTMZ1 = 260 mm and ZTMZ2 = 500 mm NOTE With reference to 6.2 Note 5, the IM should demonstrate that for interoperable rolling stock an equivalent level of safety is achieved using an alternative temperature measuring zone, such as the one defined in this informative annex Apart from its size and position, the alternative TMZ should in all other respects meet the appropriate requirements set out in this standard, EN15437 19 BS EN 15437-1:2009 EN 15437-1:2009 (E) Annex B (informative) Guidance for HABD installation When installing track side HABD, operational requirements need to be taken into account for the management of rolling stock movements, such as the stopping of a train if the system reports a suspect axlebox bearing Therefore, HABD should be installed on routes or sections of line having regard to: a) topographical and infrastructure requirements of the route and the HABD site; b) the proximity of existing HABD or other vehicle condition monitoring systems; c) topographical and infrastructure requirements at the positions at which trains will be stopped following a HABD alarm activation, taking into account train speeds and signal positions; d) the proximity of facilities to examine and manage the recovery of vehicles with axle bearings identified as defective; e) the proximity of suitable vehicle stabling facilities; f) maximum line speed, duty and range of traffic on the line, such as high speed trains, dangerous goods freight trains, etc; g) distance between HABD system installations on conventional / high speed lines; h) proximity of tunnels and bridges, populated areas; i) density of traffic of dangerous goods/transport of dangerous goods; j) direction of traffic at site, such as uni-directional or bi-directional track; k) proximity to stations; l) track maintenance requirements for the HABD site location; m) environmental/climatic conditions for example is site located in shadow or full sunlight; n) maintenance requirements for HABD systems should be defined by the equipment provider; o) reliability and availability requirements for HABD systems should be defined between the customer and the equipment provider This list is not exhaustive 20 BS EN 15437-1:2009 EN 15437-1:2009 (E) Annex C (informative) Accuracy of the HABD’s calculated temperature of an axlebox The calculated temperature of an axlebox, made from the measured thermal radiation, needs to have accuracy appropriate to the temperatures of interest An example of the minimum accuracy requirements are shown in the table below for a range of axlebox temperatures Table C.1 ― An example of the accuracy requirements for the calculated temperature of an axlebox Temperature range of the axlebox Accuracy of calculated temperature of the axlebox -50 °C to °C; ≥ ±10 °C °C to 15 °C ± 10 °C 16 °C to 20 °C ± °C 21 °C to 90 °C ± °C 91 °C to 120 °C ± °C NOTE The accuracy of the calculated temperature of an axlebox may be influenced by the ambient temperature The accuracy may therefore need to be different to that given in Table C.1 depending on the range of ambient temperature conditions experienced, for example the range in the north of Europe compared with that in the south of Europe The range of ambient temperatures that particular HABD installations will experience should be specified when procuring a HABD system NOTE See EN 50125-3 for further guidance 21 BS EN 15437-1:2009 EN 15437-1:2009 (E) Annex D (informative) Examples of HABD system temperature alarm levels across Europe The temperature alarm levels set across Europe vary and for information examples are given below: Table D.1 ― Examples of temperature alarm levels (values given in degrees Celsius) Temperature alarm type Hot Differential Warm Other Hot temperature alarm Differential temperature alarm Warm temperature alarm Other alarm, such as train side differential temperature alarm (*) 95 56 - 85 50 85(**) 50 100 30 90 - 105 35 90 - These temperature alarm types are requirements of this standard, EN 15437-1 (*) Some IMs not define a separate temperature alarm level for this alarm type (which may act as an early warning to the hot temperature alarm) This omission is equivalent (**) to setting the warm alarm level (or making it default) to the same value as the hot alarm level 22 Other temperature alarm types are not requirements of this standard, EN 15437-1, but are used in some European countries BS EN 15437-1:2009 EN 15437-1:2009 (E) Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of 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 This European Standard has been prepared under a mandate given to CEN/CENELEC/ETSI 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 Communities 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 Rolling Stock and Table ZA.2 for Locomotives and Passenger Rolling Stocks, 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 CR TSI Rolling Stock WAG and Directive 2008/57/EC Chapter/§/ Chapter/§/points and annexes annexes of of the HS RST TSI dated June this European 2006 and adopted by EC on 21 Standard February 2008 Corresponding text, articles/§/annexes of the Directive 2008/57/EC The whole standard is applicable 4.2.3.3.2 Axle bearing health monitoring Annex III, Essential Requirements, 4.3.2.5 Rolling stock parameters, which influence ground based train monitoring systems  Clauses 1.1.1, 1.1.3 Safety  Clause 1.5 Technical compatibility 4.3.4.4 Rolling stock parameters, which influence ground based train monitoring systems General Requirements Comments TSI Sub clause 4.2.3.3.2.3.6 "Emissivity" is not covered by this EN Requirements Specific to Control and Command and Signalling Subsystem  Clause 2.3.2 Compatibility of new infrastructure and rolling stock Requirements Specific to Rolling Stock Subsystem  Clause 2.4.2 Reliability and availability  Clause 2.4.3 §3 Technical compatibility 23 BS EN 15437-1:2009 EN 15437-1:2009 (E) Table ZA.2 - Correspondence between this European Standard, the CR TSI the CR Locomotive and Passenger Rolling Stocks and Directive 2008/57/EC Chapter/§/ annexes of this European Standard Chapter/§/points and annexes Corresponding text, of the CR TSI Locomotives articles/§/annexes of the Directive and Passenger Rolling Stock 2001/16/EC The whole standard is applicable 4.2.3.3.2 Axle bearing condition monitoring Annex III, Essential Requirements, General Requirements  Clauses 1.1.1, 1.1.3 Safety  Clause 1.5 Technical compatibility Comments Clauses 5.1 and 5.2 of the EN are quoted in the TSI and therefore mandatory Requirements Specific to Control and Command and Signalling Subsystem  Clause 2.3.2 Compatibility of new infrastructure and rolling stock Requirements Specific to Rolling Stock Subsystem  Clause 2.4.2 Reliability and availability  Clause 2.4.3 §3 Technical compatibility WARNING — Other requirements and other EC Directives may be applicable to the product(s) falling within the scope of this standard 24 BS EN 15437-1:2009 EN 15437-1:2009 (E) Bibliography [1] EN 12082:2007, Railway applications — Axleboxes — Performance testing 25 BS EN 15437-1:2009 BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British 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