EN 15437-1:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Kontrola ohišja ležajev kolesnih dvojic - Mesto meritev in zahteve pri projektiranju - 1. del: Progovna oprema in ohišja ležajev železniških vozilBahnanwendungen - Zustandsüberwachung von Radsatzlagern - Schnittstellen und Gestaltungsanforderungen - Teil 1: Heißläuferortungsanlagen und RadsatzlagergehäusegestaltungApplications ferroviaires - Surveillance des boîtes d’essieux - Exigences lieés aux interfaces - Partie 1: Equipments des voies et conception des boîtes d’essieux pour materiel roulautRailway applications - Axlebox condition monitoring - Interface and design requirements - Part 1: Track side equipment and rolling stock axlebox45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:Ta slovenski standard je istoveten z:EN 15437-1:2009SIST EN 15437-1:2009en,fr01-junij-2009SIST EN 15437-1:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15437-1March 2009ICS 45.060.01 English VersionRailway applications - Axlebox condition monitoring - Interfaceand design requirements - Part 1: Track side equipment androlling stock axleboxApplications ferroviaires - Surveillance des boîtes d'essieux- Exigences liées aux interfaces - Partie 1: Equipments desvoies et conception des boîtes d'essieux pour matérielroulantBahnanwendungen - Zustandsüberwachung vonRadsatzlagern - Schnittstellen undGestaltungsanforderungen - Teil 1:Heißläuferortungsanlagen undRadsatzlagergehäusegestaltungThis 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15437-1:2009: ESIST EN 15437-1:2009

Accuracy of the HABD’s calculated temperature of an axlebox . 21Annex D (informative) Examples of HABD system temperature alarm levels across Europe . 22Annex 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 . 23Bibliography . 25 SIST EN 15437-1:2009

3 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.
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 2 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. SIST EN 15437-1:2009

5 1 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 The design of rolling stock axles fitted with inboard bearings should respect the requirements set out in Note 2 of 5.2.
c) Rolling stock with a maximum operational speed of up to and including 250 km/h; NOTE 1 That is conventional rail and class 2 high speed rail rolling stock as defined in the rolling stock TSIs. NOTE 2 Interoperable rolling stock designed for speeds above 250km/h (class 1 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 2 of this standard which is currently under development.
NOTE 3 Interoperable rolling stock designed for speeds above 250km/h (class 1 high speed rolling stock) are outside the scope of this Part of the standard. However, if class 1 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 2 high speed rail rolling stock.
The rolling stock requirements of the interface are described in Clause 5 and for the HABD requirements of the interface are described in Clause 6.
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. 2 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 SIST EN 15437-1:2009

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 SIST EN 15437-1:2009

7 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. SIST EN 15437-1:2009

Key 1 Centre of track Figure 1
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 1 Centre of axle (or pair of wheels) Figure 2
Rolling Stock Coordinates SIST EN 15437-1:2009

9 3.12 wheelset unit comprising: an axle, two wheels and their axle bearings, or a pair of independent wheels located at the same longitudinal position and their bearings 3.13 heat source part of the rolling stock that may have a temperature above the in-service running temperature of the underside of the axlebox, such as a hot load or an exhaust pipe 3.14 temperature measuring zone virtual cuboid shape fixed in size and space relative to the track in which an HABD system focuses to measure thermal radiation 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviated terms apply. CCS Control, Command and Signalling (as defined in the TSIs) HABD Hot AxleBox Detector HPZ vertical height in mm of the prohibitive zone HTMZ vertical height in mm of the temperature measuring zone IM Infrastructure Manager (as defined in the TSIs) LPZ longitudinal length in mm of the prohibitive zone
LTA longitudinal length in mm of the target area PZ Prohibited zone RST Rolling STock (as defined in TSI) RU Railway Undertaking (as defined in TSI) TA Target area TMZ Temperature measuring zone TSI Technical Specification for Interoperability WPZ lateral width in mm of the prohibitive zone
WTA lateral width in mm of the target area WTMZ lateral width in mm of the temperature measuring zone YPZ lateral position of the centre of the prohibitive zone YTA lateral position of the centre of the target area relative YTMZ1 lateral position of the inner side of the TMZ YTMZ2 lateral position of the outer side of the TMZ YTMZC1 lateral position of the inner side of a portion of the TMZ YTMZC2 lateral position of the outer side of a portion of the TMZ ZTMZ1 vertical position of the lower limit of the TMZ ZTMZ2 vertical position of the upper limit of the TMZ SIST EN 15437-1:2009

The target area is set in space relative to the axle dimensions, and defines an area in which a HABD can focus to monitor the temperature of an axlebox. Figure 3 shows the position and minimum dimensions of the target area using rolling stock coordinates. Taking into account mechanical tolerances:
a) the target area shall have a lateral width, WTA, greater than or equal to 50 mm; b) the target area shall have a longitudinal length, LTA, greater than or equal to 100 mm. NOTE If class 1 high speed trains are monitored by HABDs their target area should have a lateral width, WTA, greater than or equal to 50 mm and a longitudinal length, LTA,
greater than or equal to 130 mm.
Key: 1 Centre line of vehicle 2 Centre line of target area 3 Centre line of axle Figure 3
Dimensions and position of the target area (TA) in the XY plane (viewed from below)
11 5.1.3 Position of the centre of the target area in the XY plane a) YTA in the lateral direction (Y-axis), measured relative to the centre of the axle (or cen
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