SIST EN 50463-1:2018
(Main)Railway applications - Energy measurement on board trains - Part 1: General
Railway applications - Energy measurement on board trains - Part 1: General
This draft European Standard describes the primary purpose of the EMS, which is to meter energy consumption for billing and provide compiled energy billing data (CEBD) to a DCS. The EMS may also be used for other functions such as energy management. In addition, this draft European Standard also describes the primary purpose of a DCS and its interactions with an EMS and settlement system.
This part of EN 50463:
- gives requirements for the complete Energy Measurement System and also requirements for all devices implementing one or more functions of the Energy Measurement System;
- applies to newly manufactured Energy Measurement Systems for use on board railway traction units, powered by a.c. and/or d.c. supply voltages as listed in EN 50163;
- does not apply to portable Energy Measurement Systems.
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 1: Allgemeines
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 1: Généralités
La présente Norme européenne décrit l'objectif principal de l'EMS, qui consiste à mesurer la consommation d'énergie à des fins de facturation et à fournir des données de facturation d'énergie compilées (CEBD) à un DCS. L'EMS peut également être utilisé pour d'autres fonctions telles que la gestion de l'énergie. De surcroît, la présente Norme européenne décrit l'objectif principal d'un DCS ainsi que ses interactions avec un EMS et un système de règlement.
La présente partie de l'EN 50463 :
- définit les exigences pour le système de mesure d'énergie complet, ainsi que les exigences pour tous les dispositifs mettant en oeuvre une ou plusieurs fonctions du système de mesure d'énergie ;
- s'applique aux systèmes de mesure d'énergie nouvellement fabriqués pour l'utilisation à bord d'unités de traction ferroviaires alimentées par des tensions d'alimentation en courant alternatif et/ou en courant continu comme indiqué dans l'EN 50163 ;
- ne s'applique pas aux systèmes de mesure d'énergie portables.
Železniške naprave - Merjenje energije na vlaku - 1. del: Splošno
Ta osnutek evropskega standarda opisuje primarni namen sistema EMS, ki je merjenje porabe energije za obračunavanje in ponujanje zbranih podatkov o obračunavanju energije (CEBD) DCS-ju. Sistem EMS se lahko uporablja tudi za druge namene, npr. upravljanje energije. Poleg tega ta osnutek evropskega standarda opisuje tudi primarni namen DCS-ja in njegovih interakcij s sistemom upravljanja z energijo (EMS) in poravnalnim sistemom.
Ta del standarda EN 50463:
– določa zahteve za celoten sistem merjenja energije in tudi zahteve za vse naprave, ki opravljajo eno ali več funkcij sistema merjenja energije;
– se uporablja za na novo proizvedene sisteme merjenja energije za uporabo na vlakih, ki se napajajo z izmenično in/ali enosmerno napajalno napetostjo, kot je navedeno v standardu EN 50163;
– se ne uporablja za prenosne sisteme merjenja energije.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Merjenje energije na vlaku - 1. del: SplošnoBahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 1: AllgemeinesApplications ferroviaires - Mesure d'énergie à bord des trains - Partie 1: GénéralitésRailway applications - Energy measurement on board trains - Part 1: General45.060.10Tractive stockICS:Ta slovenski standard je istoveten z:EN 50463-1:2017SIST EN 50463-1:2018en01-januar-2018SIST EN 50463-1:2018SLOVENSKI
STANDARDSIST EN 50463-1:20131DGRPHãþD
SIST EN 50463-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 50463-1
October 2017 ICS 45.060.10
Supersedes
EN 50463-1:2012English Version
Railway applications - Energy measurement on board trains - Part 1: General
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 1 : Généralités
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 1: Allgemeines This European Standard was approved by CENELEC on 2017-05-08. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 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 © 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50463-1:2017 ESIST EN 50463-1:2018
EN 50463-1:2017 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 8 2 Normative references . 8 3 Terms, definitions and abbreviations . 9 3.1 Terms and definitions . 9 3.2 Abbreviations . 12 4 Requirements . 13 4.1 General . 13 4.2 System level requirements . 13 4.2.1 General . 13 4.2.2 Accuracy . 13 4.2.3 EMS operation and power supply . 13 4.2.4 EMS measuring input . 14 4.2.5 Data handling . 14 4.2.6 RAMS . 15 4.3 Device level requirements . 15 4.3.1 Marking and availability of essential data . 15 4.3.2 Interfaces . 16 4.3.3 Data processing and transfer. 17 4.3.4 Software . 17 4.3.5 Dataflow security . 18 4.3.6 Environmental conditions . 18 4.3.7 Mechanical requirements, construction and design . 20 4.3.8 Electrical requirements . 20 Annex ZZ (informative)
Relationship between this European Standard and the Essential Requirements of Directive 2008/57/EC . 22 Bibliography . 23 SIST EN 50463-1:2018
EN 50463-1:2017 (E) 3
Figures Figure 1 — EMS functional structure and dataflow diagram . 7
Tables Table ZZ.1 — Correspondence between this European Standard, the TSI “Locomotives and Passenger Rolling Stock” (REGULATION (EU) No 1302/2014 of 18 November 2014) and Directive 2008/57/EC amended by 2011/18/EU . 22
SIST EN 50463-1:2018
EN 50463-1:2017 (E) 4 European foreword This document (EN 50463-1:2017) has been prepared by 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 (dop) 2018-04-06 • latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2020-10-06
This document supersedes EN 50463-1:2012. EN 50463-1:2017 includes the following significant technical changes with respect to EN 50463-1:2012: — extended CPID definition (Clause 3 and Clause 4). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC 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. This document is Part 1 of the EN 50463 series which consists of the following parts, under the common title Railway applications — Energy measurement on board trains: — Part 1: General; — Part 2: Energy measuring; — Part 3: Data handling; — Part 4: Communication; — Part 5: Conformity assessment. This series of European Standards follows the functional guidelines description in EN ISO/IEC 17000:2004, Annex A “Principles of conformity assessment”, tailored to the Energy Measurement System (EMS). The requirements for Energy Measurement Systems in the relevant Technical Specifications for Interoperability are supported by this series of European Standards. SIST EN 50463-1:2018
EN 50463-1:2017 (E) 5 Introduction The Energy Measurement System provides measurement and data suitable for billing and may also be used for energy management, e.g. energy saving. This series of European Standards uses the functional approach to describe the Energy Measurement System and on-ground Data Collection Service. These functions are implemented in one or more physical devices. The user of this Series of standards is free to choose the physical implementation arrangements. a) Structure and main contents of the EN 50463 series: This series of European Standards is divided into five parts. The titles and brief descriptions of each part are given below: 1) EN 50463-1 — General: The scope of EN 50463-1 is the Energy Measurement System (EMS). EN 50463-1 provides system level requirements for the complete EMS and common requirements for all devices implementing one or more functions of the EMS. 2) EN 50463-2 — Energy measuring: The scope of EN 50463-2 is the Energy Measurement Function (EMF). The EMF provides measurement of the consumed and regenerated active energy of a railway traction unit. If the traction unit is designed for use on AC traction systems the EMF also provides measurement of reactive energy. The EMF provides the measured quantities via an interface to the Data Handling System. The EMF consists of the three functions: Voltage Measurement Function, Current Measurement Function and Energy Calculation Function. For each of these functions, accuracy classes are specified and associated reference conditions are defined. EN 50463-2 also defines all specific requirements for all functions of the EMF. The Voltage Measurement Function measures the voltage of the Contact Line system and the Current Measurement Function measures the current taken from and returned to the Contact Line system. These functions provide signal inputs to the Energy Calculation Function. The Energy Calculation Function inputs the signals from the Current and Voltage Measurement Functions and calculates a set of values representing the consumed and regenerated energies. These values are transferred to the Data Handling System and are used in the creation of Compiled Energy Billing Data (CEBD). The standard has been developed taking into account that in some applications the EMF may be subjected to legal metrological control. All relevant metrological aspects are covered in EN 50463-2. EN 50463-2 also defines the conformity assessment of the EMF. 3) EN 50463-3 — Data handling: The scope of EN 50463-3 is the Data Handling System (DHS) and the associated requirements of Data Collecting System (DCS). The on board DHS receives, produces and stores data, ready for transmission to any authorized receiver of data onboard or on ground. The main goal of the DHS is to produce Compiled Energy Billing Data (CEBD) and transfer it to an on ground Data Collecting System (DCS). The DHS can SIST EN 50463-1:2018
EN 50463-1:2017 (E) 6 support other functionality on board or on ground with data (e.g. for energy management, driver advisory systems, etc.), as long as this does not conflict with the main goal. The DCS on-ground receives Compiled Energy Billing Data and transfer it to settlement system. EN 50463-3 also defines the conformity assessment of the DHS and for the transfer of CEBD to an on-ground Data Collecting System (DCS) 4) EN 50463-4 — Communication: The scope of EN 50463-4 is the communication services. This part of EN 50463 gives requirements and guidance regarding the data communication between the functions implemented within EMS as well as between such functions and other on board units where data are exchanged using a communications protocol stack over a dedicated physical interface or a shared network. It includes the reference to the on board to ground communication service and covers the requirements necessary to support data transfer between DHS and DCS including the transfer of CEBD on an interoperable basis. EN 50463-4 also defines the conformity assessment of the communications services. 5) EN 50463-5 — Conformity assessment: The scope of EN 50463-5 is the conformity assessment procedures for the EMS. EN 50463-5 also covers re-verification procedures and conformity assessment in the event of the replacement of a device of the EMS. b) EMS functional structure and dataflow: Figure 1 illustrates the functional structure of the EMS, the main sub-functions and the structure of the dataflow and is informative only. Only the main interfaces required by this standard are displayed by arrows. Since the communication function is distributed throughout the EMS, it has been widely omitted for clarity, except for the train to ground communication. Not all interfaces are shown. SIST EN 50463-1:2018
EN 50463-1:2017 (E) 7
Figure 1 — EMS functional structure and dataflow diagram Energy Calculation Function Location Reference Source Voltage Measurement Function Current Measurement Function Time Reference Source Energy Measurement Function (EMF) EN 50463-2 (Energy Measuring) EN 50463-1 (General), EN 50463-4 (Communication), EN 50463-5 (Conformity Assessment) On-ground On-board (Traction Unit) Data Handling Funtion Data Handling System (DHS) EN 50463-3 (Data Handling) Data
Collecting
System (DCS) Energy Measurement System (EMS)
Settlement System Communication Function EN 50463-4 Communication Function SIST EN 50463-1:2018
EN 50463-1:2017 (E) 8 1 Scope This European Standard describes the primary purpose of the EMS, which is to meter energy consumption for billing and provide compiled energy billing data (CEBD) to a DCS. The EMS may also be used for other functions such as energy management. In addition, this European Standard also describes the primary purpose of a DCS and its interactions with an EMS and settlement system. This part of EN 50463: • gives requirements for the complete Energy Measurement System and also requirements for all devices implementing one or more functions of the Energy Measurement System; • applies to newly manufactured Energy Measurement Systems for use on board railway traction units, powered by AC. and/or DC. supply voltages as listed in EN 50163; • does not apply to portable Energy Measurement Systems. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 45545-2:2013+A1:2015, Railway applications — Fire protection on railway vehicles — Part 2: Requirements for fire behaviour of materials and components EN 45545-5:2013+A1:2015, 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 EN 50124-1:2001, Railway applications — Insulation coordination — Part 1: Basic requirements — Clearances and creepage distances for all electrical and electronic equipment EN 50124-1:2001/A2:2005, Railway applications — Insulation coordination — Part 1: Basic requirements — Clearances and creepage distances for all electrical and electronic equipment EN 50125-1:2014, Railway applications — Environmental conditions for equipment — Part 1: Rolling stock and on-board equipment EN 50153:2014, Railway applications — Rolling stock — Protective provisions relating to electrical hazards EN 50155:2017, Railway applications — Rolling stock — Electronic equipment EN 50463-2:2017, Railway applications — Energy measurement on board trains — Part 2: Energy measuring EN 50463-3:2017, Railway applications — Energy measurement on board trains — Part 3: Data handling EN 50463-4:2017, Railway applications — Energy measurement on board trains — Part 4: Communication EN 50463-5:2017, Railway applications — Energy measurement on board trains — Part 5: Conformity assessment EN 60085:2008, Electrical insulation — Thermal evaluation and designation (IEC 60085:2007) EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) SIST EN 50463-1:2018
EN 50463-1:2017 (E) 9 EN 60529:1991/A2:2013, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989/A2:2013) EN 61010-1:2010, Safety requirements for electrical equipment for measurement, control, and laboratory use — Part 1: General requirements (IEC 61010-1:2010) EN ISO 13732-1:2008, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006) 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. Note 1 to entry: When possible, the following definitions have been taken from the relevant chapters of the International Electrotechnical Vocabulary (IEV), the IEC 60050 series. In such cases, the appropriate IEV reference is given. Certain new definitions or modifications of IEV definitions have been added in this standard in order to facilitate understanding. Expression of the performance of electrical and electronic measuring equipment has been taken from EN 60359. 3.1.1 authenticity state in which information is valid and known to have originated from the stated source [SOURCE: IEC 60050-821:FDIS2016, 821-11-05] 3.1.2 CEBD-related data data produced by any function of the EMS required for the production of CEBD Note 1 to entry: This includes energy data, time data, location data, quality codes and traction system code. 3.1.3 Compiled Energy Billing Data CEBD dataset compiled by the DHS suitable for energy billing 3.1.4 Consumption Point Identification CPID unique identifier allocated to each EMS installed on-board a traction unit 3.1.5 Contact Line CL conductor system for supplying electric energy to a traction unit through current-collecting equipment [SOURCE: IEC 60050-811:FDIS2016, 811-33-01, modified] 3.1.6 Current Measurement Function CMF function of an EMF measuring the current taken from and returned to the CL by the traction unit SIST EN 50463-1:2018
EN 50463-1:2017 (E) 10 3.1.7 Data Collecting System DCS on ground service collecting the CEBD from an EMS Note 1 to entry: The former EN 50463 series (2012) used the term Data Collection Service. 3.1.8 Data Handling System DHS function combining the energy data produced by an EMF with other data, storing and transmitting the data to a DCS and other systems 3.1.9 Energy Measurement System ID EMSID value uniquely identifying each EMS installed on the traction unit, being a single digit value chosen by the EMS installer (default value is 1) 3.1.10 enclosure housing affording the type and degree of protection suitable for the intended application [SOURCE: IEC 60050-195:1998, 195-02-35] 3.1.11 Energy Calculation Function ECF function calculating energy data using input signals from the VMF and CMF 3.1.12 energy data set of measured energy values transferred from EMF to DHS 3.1.13 Energy Measurement Function EMF function comprising the voltage measurement function, the current measurement function and the energy calculation function 3.1.14 Energy Measurement System EMS on board system comprising the EMF, DHS and associated communications services 3.1.15 equipment type specific design of device containing one or more functions, produced by one supplier and having similar properties including where applicable metrological properties, the same uniform construction of parts determining these properties and the same functional components Note 1 to entry: Equipment is designated by the manufacturer by one or more groups of letters or numbers, or a combination of letters and numbers. Each equipment type has one designation only. Note 2 to entry: The equipment type is represented by the equipment sample as provided for type test. Note 3 to entry: Functions can be VMF, CMF, ECF, EMF, DHS or EMS or any combination of these functions. SIST EN 50463-1:2018
EN 50463-1:2017 (E) 11 3.1.16 European Vehicle Number EVN number that consists of 12 digits Note 1 to entry: Further details are set out in Decision 2007/756/EC and Commission Regulation (EU) 519/2013. Note 2 to entry: CIS wagons to be coded according to OSJD-UIC leaflet 402, which allows the conversion from 8 digits to 12 digits and vice versa. 3.1.17 function mode of action or activity by which a product fulfils its purpose [SOURCE: IEC 60050-821:FDIS2016, 821-12-25] Note 1 to entry: A function (considered as a black-box) transfers input parameters (material, energy, information) into related output parameters (material, energy, information). 3.1.18 interface link between two functions of the EMS or between the EMS and other functions Note 1 to entry: A link can be physical or virtual. 3.1.19 meter device holding a ECF 3.1.20 National Vehicle Registers code NVR identification code which is assigned to each individual vehicle, in particular traction unit, in country where it is registered, and which consists of valid 2 character country code as defined by the ISO 3166-1 alpha-2-codes for representation of countries 3.1.21 purchaser entity that is a recipient of the EMS or parts of the EMS provided by a supplier 3.1.22 sensor device performing the VMF or CMF Note 1 to entry: Sensor is used as a general term and encompasses a wide variety of technology / devices for measurement purposes, e.g. inductive transformers, hall-effect devices, capacitive and resistive dividers, resistive shunts, etc. Note 2 to entry: One sensor may perform multiple functions. 3.1.23 Settlement System system capable to receive CEBD from a DCS intended to use it for billing 3.1.24 supplier entity that supplies EMS or parts of the EMS SIST EN 50463-1:2018
EN 50463-1:2017 (E) 12 3.1.25 time period period of time for which energy data is produced 3.1.26 Time Reference Period TRP time period for which CEBD is produced 3.1.27 traction system electricity type feed to the traction unit from a contact line that it is in contact with, as defined in EN 50163 3.1.28 traction unit vehicle or group of vehicles in fixed formation, for which the energy taken from and/or returned to the CL is measured by an EMS Note 1 to entry: The former EN 50463 series (2012) uses the term ‘traction unit’ to describe the part of a train to which energy metering is applied. The term ‘traction unit’ is considered to be a more suitable term than ‘vehicle’ because the latter term is generally used to describe the smallest part of a train i.e. an individual vehicle. 3.1.29 Vehicle Keeper Marking VKM alphanumeric code, consisting of 2 to 5 letters as defined by the European Railway Agency (ERA) in Commission Decision 2007/756/EC, Appendix 6 which may be consulted in (OPE TSI) Decision 2012/757/EU and Commission Regulation (EU) 519/2013 Note 1 to entry: This codification is managed in cooperation by ERA and OTIF. 3.1.30 Voltage Measurement Function VMF function of an EMF measuring the voltage of the CL 3.2 Abbreviations For the purposes of this document, the following abbreviations apply. All the abbreviations are listed in alphabetical order. CEBD Compiled Energy Billing Data CL Contact Line CMF Current Measurement Function CPID Consumption Point Identification DCS Data Collecting System DHS Data Handling System ECF Energy Calculation Function EMF Energy Measurement Function EMS Energy Measurement System EMSID Energy Measurement System ID EVN European Vehicle Number NVR National Vehicle Registers code SIST EN 50463-1:2018
EN 50463-1:2017 (E) 13 RAMS Reliability, Availability, Maintainability and Safety TRP Time Reference Period VKM Vehicle Keeper Marking VMF Voltage Measurement Function 4 Requirements 4.1 General Clause 4 of this document describes the requirements of an EMS. Subclause 4.2 gives system level requirements for the complete EMS. Subclause 4.3 gives common requirements for all devices implementing one or more functions of the EMS. 4.2 System level requirements 4.2.1 General If an EMS has any functions which are additional to those specified in the EN 50463 series, then these functions shall not: • affect the accuracy, • degrade the operation of the EMS, and • influence the production and storage of CEBD and CEBD-related data. Any changes to configuration shall be logged in the EMS, and the device marking and stored information shall also be updated. 4.2.2 Accuracy The energy measurement accuracy is defined by the functions of the EMF and shall be determined in accordance with EN 50463-2. 4.2.3 EMS operation and power supply 4.2.3.1 General The EMS shall be fully operational whenever energy flows from or to the CL. Any part of the EMS powered by an auxiliary power supply shall be compatible with the requirements of EN 50155 regarding power supply characteristics. The rated power supply voltage and maximum power consumption of the EMS shall be stated. 4.2.3.2 Power-up The EMS shall achieve operational status and be ready to measure energy within 60 s after application of power to the EMS. NOTE 1 The application of power to the EMS is an installation design consideration. NOTE 2 The 60 s maximum time limit has been selected because the power-up procedure for traction units typically requires several minutes to elapse between switching on the vehicles ancillary supplies and any significant amount of energy being drawn from the CL. SIST EN 50463-1:2018
EN 50463-1:2017 (E) 14 4.2.3.3 Power-down In the event of intentional loss of power to the EMS, no CEBD and other data shall be lost. Unintentional loss of power shall not affect data stored in the EMS. NOTE The EMS could include a procedure for transmitting all unsent CEBD to DCS as part of a planned power-down procedure of the EMS. This can help to support timely data processing on-ground. 4.2.4 EMS measuring input 4.2.4.1 Installation point of the VMF and CMF The position of the VMF(s) and CMF(s) in the power circuit shall ensure that all active and reactive energy taken from and returned to the CL is measured. NOTE
Devices consuming small quantities of energy (e.g. high impedance voltage monitoring/detection devices, insulators, etc.) are not considered significant and their consumption need not be measured by the EMS. 4.2.4.2 Characteristics of traction system The ratings of the EMS voltage and current measuring inputs shall be selected in accordance with EN 50463-2 taking into account the intended traction system and traction unit rated current. 4.2.5 Data handling 4.2.5.1 Traction system change An EMS (one or multiple) shall cover all traction systems that the traction unit can operate on. If an EMS is used for more than one traction system, it shall continue to function correctly when changing between systems, and log each change of traction system. Changes between 600 V and 750 V DC. traction systems do not need to be logged. NOTE 1 This can be achieved directly by the EMS or by input signals from the traction unit. NOTE 2 If voltage detection is used to detect traction system change, overvoltages above Umax2, in accordance with EN 50163, and voltage drops below Umin2 could cause a detection of a system change. The EMS shall measure energy consumption within 1 s of the change to the new traction system. 4.2.5.2 Consumption Point Identification Each EMS shall be assigned a unique consumption point Identification.(CPID). The CPID is composed by the content of the following fields: • NVR - National Vehicle Register code; • VKM - Vehicle Keeper Marking; • EVN - European Vehicle Number/OTIF Number; • EMSID – Energy Measurement System ID. When presented as a string, the CPID shall be composed according to the following scheme: [NVR]_[VKM]_[EVN][EMSID] The brackets are for convenience only, the following example illustrates this: D_DB_9180540618421. The CPID shall be stored in non-volatile memory of the EMS. Security procedures shall be implemented to prevent unauthorized changes to the CPID. SIST EN 50463-1:2018
EN 50463-1:2017 (E) 15 NOTE 1 Where the EMS is set up to produce CEBD that includes parallel readings of same type energy values, the energy data will be put in channels in the data transfer of CEBD from EMS to DCS and each channel will be uniquely identified by a ChannelD in the transfer file. See EN 50463–4 for details. NOTE 2 CPID was defined in EN 50463–1:2012 as a 13 digit number (numeric value without dividers or decimals) based on a European Vehicle Number from the traction unit plus one additional digit to uniquely identifying each EMS installed on the traction unit. NOTE 3 The EMS can carry a fictitious CPID until such time as the EMS is commissioned into commercial use. The process of assigning the correct CPID to a specific EMS needed when bringing it into commercial use is out of the scope of this standard. 4.2.6 RAMS 4.2.6.1 Reliability Reliability requirements shall be in accordance with EN 50155:2017, 6.1.1. Reliability figures and calculation methods are a matter of agreement between the supplier and purchaser. 4.2.6.2 Ava
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SLOVENSKI STANDARD
oSIST prEN 50463-1:2016
01-februar-2016
Železniške naprave - Merjenje energije na vlaku - 1. del: Splošno
Railway applications - Energy measurement on board trains - Part 1: General
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 1: Allgemeines
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 1: Généralités
Ta slovenski standard je istoveten z: prEN 50463-1:2015
ICS:
45.060.10 9OHþQDYR]LOD Tractive stock
oSIST prEN 50463-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50463-1:2016
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oSIST prEN 50463-1:2016
EUROPEAN STANDARD DRAFT
prEN 50463-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2015
ICS 45.060.10 Will supersede EN 50463-1:2012
English Version
Railway applications - Energy measurement on board trains -
Part 1: General
Applications ferroviaires - Mesure d'énergie à bord des Bahnanwendungen - Energiemessung auf Bahnfahrzeugen
trains - Partie 1: Généralités - Teil 1: Allgemeines
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2016-02-19.
It has been drawn up by CLC/TC 9X.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 60926 Ref. No. prEN 50463-1:2015 E
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oSIST prEN 50463-1:2016
prEN 50463-1:2015
32 Contents
33 European foreword . 3
34 Introduction . 4
35 1 Scope . 7
36 2 Normative references . 7
37 3 Terms, definitions and abbreviations . 8
38 4 Requirements . 11
39 Annex ZZ (informative) Coverage of Essential Requirements of EU Directives . 22
40 Bibliography . 23
41
42 Figure
43 Figure 1 — EMS functional structure and dataflow diagram . 6
44
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45 European foreword
46 This document (prEN 50463-1:2015) has been prepared by CLC/TC 9X “Electrical and electronic
47 applications for railways”.
48 This document is currently submitted to the Enquiry.
49 The following dates are proposed:
• latest date by which the existence of (doa) dor + 6 months
this document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
50
51 This document will supersede EN 50463-1:2012.
52 prEN 50463-1:2015 includes the following significant technical changes with respect to EN 50463-1:2012:
53 — extended CPID definition (Clause 3 and Clause 4).
54 This document has been prepared under a mandate given to CENELEC by the European Commission and
55 the European Free Trade Association, and supports essential requirements of EU Directive(s).
56 For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
57 document.
58 This document is Part 1 of the EN 50463 series which consists of the following parts, under the common title
59 Railway applications — Energy measurement on board trains:
60 — Part 1: General;
61 — Part 2: Energy measuring;
62 — Part 3: Data handling;
63 — Part 4: Communication;
64 — Part 5: Conformity assessment.
65 This series of European Standards follows the functional guidelines description in EN ISO/IEC 17000:2004,
66 Annex A “Principles of conformity assessment”, tailored to the Energy Measurement System (EMS).
67 The requirements for Energy Measurement Systems in the relevant Technical Specifications for
68 Interoperability are supported by this series of European Standards.
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69 Introduction
70 The Energy Measurement System provides measurement and data suitable for billing and may also be used
71 for energy management, e.g. energy saving.
72 This series of European Standards uses the functional approach to describe the Energy Measurement
73 System and on-ground Data Collection Service. These functions are implemented in one or more physical
74 devices. The user of this Series of standards is free to choose the physical implementation arrangements.
75 — Structure and main contents of the EN 50463 series:
76 This series of European Standards is divided into five parts. The titles and brief descriptions of each part are
77 given below:
78 — prEN 50463-1 — General:
79 The scope of prEN 50463-1 is the Energy Measurement System (EMS).
80 prEN 50463-1 provides system level requirements for the complete EMS and common requirements for all
81 devices implementing one or more functions of the EMS.
82 — EN 50463-2 — Energy measuring:
83 The scope of EN 50463-2 is the Energy Measurement Function (EMF).
84 The EMF provides measurement of the consumed and regenerated active energy of a traction unit. If the
85 traction unit is designed for use on a.c. traction systems, the EMF also provides measurement of reactive
86 energy. The EMF provides the measured quantities via an interface to the Data Handling System.
87 The EMF consists of the three functions: Voltage Measurement Function, Current Measurement Function
88 and Energy Calculation Function. For each of these functions, accuracy classes are specified and associated
89 reference conditions are defined. This part also defines all specific requirements for all functions of the EMF.
90 The Voltage Measurement Function measures the voltage of the CL system and the Current Measurement
91 Function measures the current taken from and returned to the CL system. These functions provide signal
92 inputs to the Energy Calculation Function.
93 The Energy Calculation Function inputs the signals from the Current and Voltage Measurement Functions
94 and calculates a set of values representing the consumed and regenerated energies. These values are
95 transferred to the Data Handling System and are used in the creation of Compiled Energy Billing Data.
96 The standard has been developed taking into account that in some applications, the EMF may be subjected
97 to legal metrological control. All relevant metrological aspects are covered in this part of EN 50463.
98 EN 50463-2 also defines the conformity assessment of the EMF.
99 — EN 50463-3 — Data handling:
100 The scope of EN 50463-3 is the Data Handling System (DHS) and the associated requirements of Data
101 Collection Service (DCS).
102 The on board DHS receives, produces and stores data, ready for transmission to any authorized receiver of
103 data on board or on ground. The main goal of the DHS is to produce Compiled Energy Billing Data and
104 transfer it on an interoperable basis to an on-ground Data Collection Service (DCS). The DHS can support
105 other functionality on board or on-ground with data, as long as this does not conflict with the main goal.
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106 The DCS on-ground receives Compiled Energy Billing Data and transfer it to settlement system.
107 EN 50463-3 also defines the conformity assessment of the DHS and for the transfer of CEBD to an on-
108 ground Data Collection Service (DCS).
109 — EN 50463-4 — Communication:
110 The scope of EN 50463-4 is the communication services.
111 This part of EN 50463 gives requirements and guidance regarding the data communication between the
112 functions implemented within EMS as well as between such functions and other on board units where data
113 are exchanged using a communications protocol stack over a dedicated physical interface or a shared
114 network.
115 It includes the on board to ground communication service and covers the requirements necessary to support
116 data transfer between DHS and DCS including the transfer of CEBD on an interoperable basis.
117 EN 50463-4 also defines the conformity assessment of the communications services.
118 — EN 50463-5 — Conformity assessment:
119 The scope of EN 50463-5 is the conformity assessment procedures for the EMS.
120 EN 50463-5 also covers re-verification procedures and conformity assessment in the event of the
121 replacement of a device of the EMS.
122 — EMS functional structure and dataflow:
123 Figure 1 illustrates the functional structure of the EMS, the main sub-functions and the structure of the
124 dataflow and is informative only. Only the main interfaces required by this standard are displayed by arrows.
125 Since the communication function is distributed throughout the EMS, it has been omitted for clarity. Not all
126 interfaces are shown.
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Time Reference Source
Settlement
Location Reference Source
System
Current Measurement Function
Voltage Measurement Function
Data
Data Handling System
Energy Calculation Function
Collection
Service
Energy Measurement Function Data Handling System
(EMF) (DHS)
EN 50463 2 (E M i ) EN 50463 3 (D t H dli )
Energy Measurement System (EMS)
EN 50463-1 (General), EN 50463-4 (Communication), EN 50463-5 (Conformity Assessment)
On-board (Traction Unit)
On-ground
127
128 Figure 1 — EMS functional structure and dataflow diagram
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129 1 Scope
130 This draft European Standard describes the primary purpose of the EMS, which is to meter energy
131 consumption for billing and provide compiled energy billing data (CEBD) to a DCS. The EMS may also be
132 used for other functions such as energy management. In addition, this draft European Standard also
133 describes the primary purpose of a DCS and its interactions with an EMS and settlement system.
134 This part of EN 50463:
135 • gives requirements for the complete Energy Measurement System and also requirements for all devices
136 implementing one or more functions of the Energy Measurement System;
137 • applies to newly manufactured Energy Measurement Systems for use on board railway traction units,
138 powered by a.c. and/or d.c. supply voltages as listed in EN 50163;
139 • does not apply to portable Energy Measurement Systems.
140 2 Normative references
141 The following documents, in whole or in part, are normatively referenced in this document and are
142 indispensable for its application. For dated references, only the edition cited applies. For undated references,
143 the latest edition of the referenced document (including any amendments) applies.
144 EN 45545-2, Railway applications — Fire protection on railway vehicles — Part 2: Requirements for fire
145 behavior of materials and components
146 EN 45545-5, Railway applications — Fire protection on railway vehicles — Part 5: Fire safety requirements
147 for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles
148 EN 50124-1:2001, Railway applications — Insulation coordination — Part 1: Basic requirements —
149 Clearances and creepage distances for all electrical and electronic equipment
150 EN 50124-1:2001/A2:2005, Railway applications — Insulation coordination — Part 1: Basic requirements —
151 Clearances and creepage distances for all electrical and electronic equipment
152 EN 50125-1:1999, Railway applications — Environmental conditions for equipment — Part 1: Equipment on
153 board rolling stock
154 EN 50153, Railway applications — Rolling stock — Protective provisions relating to electrical hazards
155 EN 50155:2007, Railway applications — Electronic equipment used on rolling stock
156 EN 50463 (all parts), Railway applications — Energy measurement on board trains
157 EN 60085, Electrical insulation — Thermal evaluation and designation (IEC 60085)
158 EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
159 EN 60529:1991/A2:2013, Degrees of protection provided by enclosures (IP Code)
160 (IEC 60529:1989/A2:2013)
161 EN 61010-1, Safety requirements for electrical equipment for measurement, control, and laboratory use —
162 Part 1: General requirements (IEC 61010-1)
163 EN ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human
164 responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1)
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165 3 Terms, definitions and abbreviations
166 3.1 Terms and definitions
167 For the purposes of this document, the following terms and definitions apply.
168 NOTE When possible, the following definitions have been taken from the relevant chapters of the International
169 Electrotechnical Vocabulary (IEV), the IEC 60050 series. In such cases, the appropriate IEV reference is given. Certain
170 new definitions or modifications of IEV definitions have been added in this standard in order to facilitate understanding.
171 Expression of the performance of electrical and electronic measuring equipment has been taken from EN 60359.
172 3.1.1
173 authenticity
174 security measures ensuring that the interface only transfers data or signals when the source and destination
175 are correctly matched
176 3.1.2
177 CEBD-related data
178 data produced by any function of the EMS required for the production of CEBD
179 Note 1 to entry: This includes energy data, time data location data, quality codes and traction system code.
180 3.1.3
181 Compiled Energy Billing Data
182 CEBD
183 dataset compiled by the DHS suitable for energy billing
184 3.1.4
185 Consumption Point Identification
186 CPID
187 unique identifier allocated to each EMS installed on-board a traction unit
188 3.1.5
189 Contact Line
190 CL
191 conductor system for supplying electric energy to a traction unit through current-collecting equipment
192 [SOURCE: IEV 811-33-01, modified]
193 3.1.6
194 Current Measurement Function
195 CMF
196 function of an EMF measuring the current taken from and returned to the CL by the traction unit
197 3.1.7
198 Data Collection Service
199 DCS
200 on ground service collecting the CEBD from an EMS
201 3.1.8
202 Data Handling System
203 DHS
204 function combining the energy data produced by an EMF with other data, storing and transmitting the data to
205 a DCS and other systems
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206 3.1.9
207 Energy Measurement System ID
208 EMSID
209 value uniquely identifying each EMS installed on the traction unit, being a single digit value chosen by the
210 EMS installer (default value is 1)
211 3.1.10
212 enclosure
213 housing affording the type and degree of protection suitable for the intended application
214 [SOURCE: IEV 195-02-35]
215 3.1.11
216 Energy Calculation Function
217 ECF
218 function calculating energy data using input signals from the VMF and CMF
219 3.1.12
220 energy data
221 set of measured energy values transferred from EMF to DHS
222 3.1.13
223 Energy Measurement Function
224 EMF
225 function comprising the voltage measurement function, the current measurement function and the energy
226 calculation function
227 3.1.14
228 Energy Measurement System
229 EMS
230 on board system comprising the EMF, DHS and associated communications services
231 3.1.15
232 equipment type
233 specific design of device containing one or more functions, produced by one supplier and having similar
234 properties including where applicable metrological properties, the same uniform construction of parts
235 determining these properties and the same functional components
236 Note 1 to entry: Equipment is designated by the manufacturer by one or more groups of letters or numbers, or a
237 combination of letters and numbers. Each equipment type has one designation only.
238 Note 2 to entry: The equipment type is represented by the equipment sample as provided for type test.
239 Note 3 to entry: Functions can be VMF, CMF, ECF, EMF, DHS or EMS or any combination of these functions.
240 [SOURCE: IEV 314-07-07, modified]
241 3.1.16
242 European Vehicle Number
243 EVN
244 number that consists of 12 digits
245 Note 1 to entry: Further details are set out in the Decision 2007/756/EC. CIS wagons to be coded according to OSJD-
246 UIC leaflet 402, which allows the conversion from 8 digits to 12 digits and vice versa.
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247 3.1.17
248 function
249 specific purpose or objective to be accomplished that is specified or described without reference to the
250 physical means of achieving it
251 Note 1 to entry: A function (considered as a black-box) transfers input parameters (material, energy, information) into
252 related output parameters (material, energy, information).
253 3.1.18
254 interface
255 link between two functions of the EMS or between the EMS and other functions
256 Note 1 to entry: A link can be physical or virtual.
257 3.1.19
258 National Vehicle Registers code
259 NVR
260 Identification code assigned to each individual vehicle, in particular traction unit, in country where it is
261 registered. It consist of valid 2 character country code as defined by the ISO standard 3166-1 alpha-2-codes
262 for representation of countries.2
263 3.1.20
264 Vehicle Keeper Marking
265 VKM
266 alphanumeric code, consisting of 2 to 5 letters as defined by the European Railway Agency (ERA) in
267 Appendix 6 of Commission Decision 2007/756/EC
268 Note 1 to entry: This codification is managed in cooperation by ERA and OTIF.
269 3.1.21
270 meter
271 device holding a ECF
272 3.1.22
273 purchaser
274 entity that is a recipient of the EMS or parts of the EMS provided by a supplier
275 3.1.23
276 sensor
277 device performing the VMF or CMF
278 Note 1 to entry: Sensor is used as a general term and encompasses a wide variety of technology / devices for
279 measurement purposes, e.g. inductive transformers, hall-effect devices, capacitive and resistive dividers, resistive
280 shunts, etc.
281 Note 2 to entry: One sensor may perform multiple functions.
282 3.1.24
283 Settlement System
284 system capable to receive CEBD from a DCS intended to use it for billing
285 3.1.25
286 supplier
287 entity that supplies EMS or parts of the EMS; may also be the manufacturer
288 3.1.26
289 time period
290 period of time for which energy data is produced
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291 3.1.27
292 Time Reference Period
293 TRP
294 time period for which CEBD is produced
295 3.1.28
296 traction system
297 electricity type feed to the traction unit from a contact line that it is in contact with, as defined in EN 50163
298 3.1.29
299 traction unit
300 vehicle or group of vehicles in fixed formation, for which the energy taken from and/or returned to the CL is to
301 be measured by an EMS
302 Note 1 to entry: The EN 50463 series uses the term ‘traction unit’ to describe the part of a train to which energy
303 metering is applied. The term ‘traction unit’ is considered to be a more suitable term than ‘vehicle’ because the latter term
304 is generally used to describe the smallest part of a train i.e. an individual vehicle.
305 3.1.30
306 Voltage Measurement Function
307 VMF
308 function of an EMF measuring the voltage of the CL
309 3.2 Abbreviations
310 For the purposes of this document, the following abbreviations apply.
311 All the abbreviations are listed in alphabetical order.
CEBD Compiled Energy Billing Data
CL Contact Line
CMF Current Measurement Function
CPID Consumption Point Identification
DCS Data Collection Service
DHS Data Handling System
ECF Energy Calculation Function
EMF Energy Measurement Function
EMS Energy Measurement System
EMSID Energy Measurement System ID
EVN European Vehicle Number
NVR National Vehicle Registers code
RAMS Reliability, Availability, Maintenance and Safety
TRP Time Reference Period
VKM Vehicle Keeper Marking
VMF Voltage Measurement Function
312 4 Requirements
313 4.1 General
314 Clause 4 of this document describes the requirements of an EMS.
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315 Subclause 4.2 gives system level requirements for the complete EMS.
316 Subclause 4.3 gives common requirements for all devices implementing one or more functions of the EMS.
317 4.2 System level requirements
318 4.2.1 General
319 If an EMS has any functions which are additional to those specified in the EN 50463 series, then these
320 functions shall not:
321 • affect the accuracy,
322 • degrade the operation of the EMS, and
323 • influence the production and storage of CEBD and CEBD-related data.
324 Any changes to configuration shall be logged in the EMS, and the device marking and stored information
325 shall also be updated.
326 4.2.2 Accuracy
327 The energy measurement accuracy is defined by the functions of the EMF and shall be determined in
328 accordance with EN 50463-2.
329 4.2.3 EMS operation and power supply
330 4.2.3.1 General
331 The EMS shall be fully operational whenever energy flows from or to the CL.
332 Any part of the EMS powered by an auxiliary power supply, shall be compatible with the requirements of
333 EN 50155 regarding power supply characteristics.
334 The rated power supply voltage and maximum power consumption of the EMS shall be stated.
335 4.2.3.2 Power-up
336 The EMS shall achieve operational status and be ready to measure energy within 60 s of application of
337 power to the EMS.
338 NOTE 1 The application of power to the EMS is an installation design consideration.
339 NOTE 2 The 60 s maximum time limit has been selected because the power-up procedure for traction units typically
340 requires several minutes to elapse between switching on the vehicles ancillary supplies and any significant amount of
341 energy being drawn from the CL.
342 4.2.3.3 Power-down
343 In the event of intentional loss of power to the EMS, no CEBD and other data shall be lost.
344 Unintentional loss of power shall not affect data stored in the EMS.
345 NOTE The EMS could include a procedure for transmitting all unsent CEBD to DCS as part of a planned power-
346 down procedure of the EMS. This can help to support timely data processing on-ground.
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347 4.2.4 EMS measuring input
348 4.2.4.1 Installation point of the VMF and CMF
349 The position of the VMF(s) and CMF(s) in the power circuit shall ensure that all active and reactive energy
350 taken from and returned to the CL is measured.
351 NOTE Devices consuming small quantities of energy (e.g. high impedance voltage monitoring/detection devices,
352 insulators, etc.) are not considered significant and their consumption need not be measured by the EMS.
353 4.2.4.2 Characteristics of traction system
354 The ratings of the EMS voltage and current measuring inputs shall be selected in accordance with
355 EN 50463-2 taking into account the intended traction system and traction unit rated current.
356 4.2.5 Data handling
357 4.2.5.1 Traction system change
358 An EMS (one or multiple) shall cover all traction systems that the traction unit can operate on.
359 If an EMS is used for more than one traction system, it shall continue to function correctly when changing
360 between systems, and log each change of traction system. Changes between 600 V and 750 V d.c. traction
361 systems do not need to be logged.
362 NOTE 1 This may be achieved directly by the EMS or by input signals from the traction unit.
363 NOTE 2 If voltage detection is used to detect traction system change, overvoltages above U , in accordance with
max2
364 EN 50163, and voltage drops below U could cause a detection of a system change.
min2
365 The EMS shall measure energy consumption within 1 s of the change to the new traction system.
366 4.2.5.2 Consumption Point Identification
367 Each EMS shall be assigned a unique consumption point Identification.(CPID)
368 The CPID is composed by the content of the following fields:
369 • NVR - National Vehicle Register code;
370 • VKM - Vehicle Keeper Marking;
371 • EVN - European Vehicle Number/OTIF Number;
372 • EMSID – Energy Measurement System ID.
373 The CPID shall be stored in non-volatile memory of the EMS. Security procedures shall be implemented to
374 prevent unauthorized changes to the CPID.
375 NOTE 1 Where the EMS is set up to produce CEBD that includes parallel readings of same type energy values, the
376 energy data will be put in channels in the data transfer of CEBD from EMS to DCS and each channel will be uniquely
377 identified by a ChannelD in the transfer file. See EN 50463–4 for details.
378 NOTE 2 To permit backwards compatibility to existing EMS devices, a 13 digit number consisting of the EVN and a
379 13th digit identifying each EMS onboard the traction unit is also accepted as CPID.
380 NOTE 3 The EMS can carry a fictitious CPID until such time as the EMS is commissioned into commercial use. The
381 process of assigning the correct CPID to a specific EMS needed when bringing it into commercial use, is out of the scope
382 of this standard.
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383 4.2.6 RAMS
384 4.2.6.1 Reliability
385 Reliability requirements shall be in accordance with EN 50155:2007, 6.1.1. Reliability figures and calculation
386 methods are a matter of agreement between the supplier and purchaser.
387 4.2.6.2 Availability
388 Calculation methods and availability figures shall be agreed between the supplier and purchaser.
389 4.2.6.3 Maintainability
390 Maintainability requirements shall be in accordance with EN 50155:2007, 6.3, 6.4 and 6.5.
391 Further requirements, if any, shall be agreed between the supplier and purchaser.
392 4.2.6.4 Safety
393 The EMS shall be designed, manufactured and installed on board the traction unit in such a way that it is
394 safe in normal use and under normal conditions, in particular to ensure:
395 • personal safety against electric shock in accordance with EN 50153,
396 • personal safety against effects of excessive temperature in accordance with EN ISO 13732-1, and
397 • protection against spread of fire (guideline can be found in EN 45545-2 and EN 45545-5).
398 NOTE When considering personal safety (electric shock risk), CL failure is a credible failure condition. This may
399 pose a risk if a live part of the CL comes into direct contact with an exposed part of the EMS, or an exposed device
400 connected directly to the EMS (e.g. roof mounted devices containing VMF, CMF or antenna).
401
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