This European Standard describes a process to demonstrate compatibility between Rolling Stock (RST) and Train Detection Systems (TDS) for specific routes. It references the methods of measurement of interference currents and magnetic fields, the methods of measurement of the susceptibility of train detection systems and the characterization of traction power supplies. The process described in this standard is equally applicable to mainline, lightrail and metro type railways.
The basic parameters of compatibility for mainline railways are covered by the ERA Interface document (ERA/ERTMS/033281).
It should be noted that the demonstration of compatibility between the rolling stock and infrastructure with respect to physical dimensions is not detailed in this standard.
Under the Interoperability Directive, two stages of compatibility are defined. The first stage is for authorization for putting into service against generic limits, and the second stage - for putting into use, when specific limits for compatibility with TDS are addressed which are outside the general limits or non interoperable TDS are installed on the line over which the RST will run.
Compatibility requirements for non-mainline or isolated light rail/metro type lines are addressed in one stage of authorization.
This European Standard is not generally applicable to those combinations of rolling stock, traction power supply and train detection system which were accepted as compatible prior to the issue of this European Standard. However, as far as is reasonably practicable, this European Standard may be applied to modifications of rolling stock, traction power supply or train detection systems which may affect compatibility.

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This European Standard specifies requirements for the interaction between pantographs and overhead contact lines, to achieve to achieve free access.
NOTE   These requirements are defined for a limited number of pantograph types, referred to as an 'interoperable pantograph' according to 5.3, together with the geometry and characteristics of compatible overhead contact lines.
This European Standard describes parameters and values for planned and future lines.
Annex B gives some parameters for existing lines (informative).

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Unchanged with respect to the current edition CLC/TS 50238-2:2015.
Scope of the revision:
- to include the corrigendum CLC/TS 50238-2:2015/AC:2016-07,
- to correct editorial errors and to align definition of terms with EN 50238 series, EN 50617 series, IEV 60050-
811:2017 and IEV 60050-821:2017,
- to update Annex A "Interference current limits for Rolling Stock"
- to review the need of Annex B "Rolling Stock Interference Evaluation methods"

  • Technical specification
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For the purpose of demonstrating compatibility between rolling stock and axle counter detectors, this document defines the interference limits and evaluation methods to verify rolling stock emissions. Wheel sensors and crossing loops are not covered by this document.
This document gives recommended individual limits to be applied to establish compatibility between RST and all selected types of axle counter detectors, including any covered by national standards.
The list of selected types of axle counters and their limits for compatibility are drawn on the basis of established performance criteria. It is expected that the trend for newly signalled interoperable lines will be fitted with types that meet the compatibility limits published in the TSI CCS Interfaces Document (ERA/ERTMS/033281).
To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits; otherwise, the established availability of the valid output function of axle counter detectors may be compromised.
NOTE   The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy current brakes or magnetic brakes, are not covered by this document but are considered on the basis of national technical specifications.

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In addition to the general requirements of IEC 60077-2, this part of IEC 60077 gives rules for
AC circuit-breakers, the main contacts of which are connected to AC overhead contact lines;
the nominal voltage of these circuits being in accordance with IEC 60850.
This document, together with IEC 60077-2, states specifically:
a) the characteristics of the circuit-breakers;
b) the service conditions with which circuit-breakers comply with reference to:
– operation and behaviour in normal service;
– operation and behaviour in short-circuit;
– dielectric properties;
c) the tests for confirming the compliance of the components with the characteristics under
the service conditions and the methods to be adopted for these tests;
d) the information to be marked on, or given with the circuit-breaker.
NOTE 1 Circuit-breakers which are dealt with in this document can be provided with devices for automatic
opening under pre-determined conditions other than those of overcurrent, for example, undervoltage and reversal
of power flow direction. This document does not deal with the verification of operation under such predetermined
conditions.
NOTE 2 The incorporation of electronic components or electronic sub-assemblies into electrotechnical components
is now common practice.
Although this document is not applicable to electronic equipment, the presence of electronic components does not
provide a reason to exclude such electrotechnical components from the scope.
Electronic sub-assemblies included in the circuit-breakers comply with the relevant standard for electronics
(IEC 60571).
NOTE 3 Certain of these rules, after agreement between the user and the manufacturer, are used for
electrotechnical components installed on vehicles other than rail rolling stock such as mine locomotives,
trolleybuses, etc. In this case, particular additional requirements can be necessary.
This document does not cover industrial circuit-breakers which comply with IEC 62271-100.
For these, in order to ensure satisfactory operation, this document is used to specify only the
particular requirements for rolling stock. In such cases, a specific document states the
additional requirements with which the industrial circuit-breakers comply, for example:
– either to be adapted (e.g. for control voltage, environmental conditions, etc.);
– or to be installed and used so that they do not have to endure specific rolling stock
conditions;
– or to be additionally tested to prove that these components can withstand satisfactorily the
rolling stock conditions.

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This European Standard applies to electric traction overhead contact line systems in heavy railways, light railways, trolley busses and industrial railways of public and private operators.
It applies to new installations of overhead contact line systems and for the complete reconstruction of existing overhead contact line systems.
This standard contains the requirements and tests for the design of overhead contact lines, requirements for structures and their structural calculations and verifications as well as the requirements and tests for the design of assemblies and individual parts.
This standard does not provide requirements for conductor rail systems where the conductor rails are located adjacent to the running rails.

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The purpose of NEN-EN-IEC 60077-5 is to give additional or amended rules for high voltage (HV) fuses as a supplement to those given by IEC 60077-2. The high voltage fuses concerned are those connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V DC and 3 000 V DC, according to IEC 60850. These fuses can also be used in auxiliary AC circuits up to a nominal voltage of 1500 V. This document together with IEC 60077-2 states specifically: a) the characteristics of the fuses; b) the service conditions with which the fuses comply with reference to: - operation and behaviour in normal service; - operation and behaviour in case of short circuit; - dielectric properties. c) the tests intended for confirming the compliance of the fuse with the characteristics under the service conditions and the methods adopted for these tests; d) the information marked on, or given with, the fuse. This document does not cover parallel connection of fuses. During preparation of this document, IEC 60269-1 and IEC 60282-1 have been considered and their requirements have been kept as far as possible. This document makes reference to the general rules for electrotechnical components given in IEC 60077-2, but for general conditions reference is made directly to IEC 60077-1.

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In addition to the general requirements of NEN-EN-IEC 60077-2, NEN-EN-IEC 60077-3 gives the rules for circuit-breakers, the main contacts of which are connected to DC power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V DC according to IEC 60850. This part of IEC 60077, together with IEC 60077-2, states specifically: a) the characteristics of the circuit-breakers; b) the service conditions with which circuit-breakers complies with reference to: - operation and behaviour in normal service; - operation and behaviour in the case of short circuit; - dielectric properties; c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests; d) the information to be marked on, or given with, the circuit breaker.

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This European Standard specifies requirements for the acceptance of simulation tools used for the assessment of design of traction power supply systems.
The simulation results allow the calculation of quality indexes requested by EN 50388:2012, Clause 8.
This European Standard is applicable to the simulation of AC and DC traction power supply systems, including lines defined in the TSIs.
This European Standard does not deal with validation of simulation tools by measurement.
The minimum required functionalities are described in this European Standard (Clauses 5, 6, 7 and 8). The previous statement is valid regardless of how many additional functions the simulation tool has, e.g. energy efficiency, advanced regenerative braking, calculation of load angles...
NOTE   A new test case will be drafted considering metro, tramways and trolleybuses using 600 V - 750 V DC. Until this test case is available, this standard can also be applied to subway, tram and trolley bus systems. This test case will also integrate rail systems using 750 V.
Additionally, the application of the standard ensures that the output data of different simulation tools are consistent when they are using the same set of input data.
This European Standard only applies to the simulation of traction power supply systems characteristics at their nominal frequency for AC or DC systems. It does not apply to harmonic, electrical safety or electromagnetic compatibility studies over a wide frequency spectrum.
This European Standard does not mandate the use of a particular simulation tool in order to validate the design of a traction power supply system.
This standard has not the purpose to avoid the need for the experience of a skilled power supply designer, as well as the fulfilment of other standards like EN 50388.

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This document applies to overhead contact line systems in heavy railways, light railways, trolley buses and industrial railways of public and private operators. This document applies to new installations of overhead contact line systems and for the complete renewal of existing overhead contact line systems. This document contains the requirements and tests for the design of overhead contact lines, requirements for structures and their structural calculations and verifications as well as the requirements and tests for the design of assemblies and individual parts. This document does not provide requirements for ground level conductor rail systems (see Figure 1).

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This document specifies requirements for the acceptance of simulation tools used for the assessment of design of electric traction power supply systems with respect to TSI Energy. This document is applicable to the simulation of AC and DC electric traction power supply systems, in the frame of assessment required by Directive (EU) 2016/797. The methods and parameters defined in this document are only intended for use in the design of the electric traction power supply system, and hence this document solely considers validation of tools within the TSI energy subsystem for all envisaged railway networks. This document does not deal with validation of simulation tools by measurement. This document focuses on the core simulation functions comprising the equations and functions which calculate the mechanical movement of trains and also which calculate the load flow of the electrical traction power supply system. In doing so this document provides all requirements necessary to demonstrate that a simulation tool may be used for the purposes of TSI approval of electric traction power supply systems. Any simulation tool which meets the acceptance requirements of the test cases in this document can be used to determine TSI compatibility for all systems of the same voltage and frequency without any requirement for further validation as part of the TSI assessment process. This document includes controls for the modification of simulation tools, in particular the limits of applicability of certification when tools are modified. These controls focus on determining whether the core functions of the simulation model are modified. This document provides only the requirements for demonstration of the algorithms and calculations of core functions. The use of a certified simulation tool in accordance with this document does not, in itself, demonstrate good practice in electric traction power supply system design, neither does it guarantee that the simulation models and data for infrastructure or trains used in the tool are correct for a given application. The choice and application of any models and data, of individual system components, in a design is therefore subject to additional verification processes and not in the Scope of this document. Competent development of design models and full understanding of the limits of design tools remain requirements in any system design. This document does not reduce any element of the need for competent designers to lead the design process. The test cases and data shown in Clause 6 in this document do not represent an existing network, but these data are used as theoretical/virtual network only for the purpose of verification of the core functionality. NOTE A new test case will be drafted considering metro, tramways and trolleybuses using DC 600 V or DC 750 V. Until this test case is available, this document can also be applied to subway, tram and trolley bus systems. This test case will also integrate rail systems using DC 750 V. Additionally, the application of this document ensures that the output data of different simulation tools are consistent when they are using the same set of input data listed in Clause 6. This document only applies to the simulation of electric traction power supply systems characteristics at their nominal frequency for AC or DC systems. It does not consider harmonic studies, electrical safety studies (e.g. rail potential), short circuit or electromagnetic compatibility studies over a wide frequency spectrum. This document does not mandate the use of a particular simulation tool in order to validate the design of an electric traction power supply system. This document does not consider complex models with active components such as static frequency convertors.

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IEC 60077-3:2019 is available as IEC 60077-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60077-3:2019 gives the rules for circuit-breakers, the main contacts of which are connected to DC power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V DC according to IEC 60850. This part of IEC 60077, together with IEC 60077-2, states specifically: a) the characteristics of the circuit-breakers; b) the service conditions with which circuit-breakers complies with reference to: - operation and behaviour in normal service; - operation and behaviour in the case of short circuit - dielectric properties; c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests; d) the information to be marked on, or given with, the circuit breaker. This second edition cancels and replaces the first edition, issued in 2001. This edition includes the following main technical changes with regard to the previous edition: - procedure of verification of temperature rise is changed; - air-tightness test as type test, insulation resistance measurement are added.

  • Standard
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This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus and systems intended for use in railway fixed installations for power supply. This includes the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items such as switching stations, power autotransformers, booster transformers, substation power switchgear and power switchgear to other longitudinal and local supplies.
Filters operating at railway system voltage (for example, for harmonic suppression or power factor correction) are not included in this standard since each site has special requirements. Filters would normally have separate enclosures with separate rules for access. If electromagnetic limits are required, these will appear in the specification for the equipment.
If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard are not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU.
The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified.
Emission and immunity limits are given for items of apparatus which are situated:
a) within the boundary of a substation which delivers electric power to a railway;
b) beside the track for the purpose of controlling or regulating the railway power supply, including power factor correction;
c) along the track for the purpose of supplying electrical power to the railway other than by means of the conductors used for contact current collection, and associated return conductors. Included are high voltage feeder systems within the boundary of the railway which supply substations at which the voltage is reduced to the railway system voltage;
d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This category includes power supplies to marshalling yards, maintenance depots and stations;
e) various other non-traction power supplies from railway sources which are shared with railway traction.
The immunity levels given in this standard apply for:
- vital equipment such as protection devices;
- equipment having connections to the traction power conductors;
- apparatus inside the 3 m zone;
- ports of apparatus inside the 10 m zone with connection inside the 3 m zone;
- ports of apparatus inside the 10 m zone with cable length > 30 m.
Apparatus and systems which are in an environment which can be described as residential, commercial or light industry, even when placed within the physical boundary of the railway substation, shall comply with EN 61000-6-1:2007 for immunity and EN 61000-6-3:2007 for emission requirements.
Excluded from the immunity requirements of this standard is power supply apparatus which is intrinsically immune to the tests defined in Tables 1 to 6.
NOTE An example is an 18 MVA 230 kV to 25 kV power supply transformer.
These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
This part of the standard covers requirements for both apparatus and fixed installations. The sections for fixed installations are not relevant for CE marking.

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For the purpose of demonstrating compatibility between rolling stock and axle counter detectors, this document defines the interference limits and evaluation methods to verify rolling stock emissions. Wheel sensors and crossing loops are not covered by this document. This document gives recommended individual limits to be applied to establish compatibility between RST and all selected types of axle counter detectors, including any covered by national standards. The list of selected types of axle counters and their limits for compatibility are drawn on the basis of established performance criteria. It is expected that the trend for newly signalled interoperable lines will be fitted with types that meet the compatibility limits published in the TSI CCS Interfaces Document (ERA/ERTMS/033281). To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits; otherwise, the established availability of the valid output function of axle counter detectors may be compromised. NOTE The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy current brakes or magnetic brakes, are not covered by this document but are considered on the basis of national technical specifications. For wheel sensors and wheel detectors in other applications than axle counters but utilizing the same rail sensors and detectors, transient and continuous interference can be considered as equivalent to axle counter detectors or axle counter sensors.

  • Technical specification
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Simulation techniques are used to assess the dynamic interaction between overhead contact lines and pantographs, as part of the prediction of current collection quality. This European Standard specifies functional requirements for the validation of such simulation methods to ensure confidence in, and mutual acceptance of the results of the simulations.
This standard deals with:
-   input and output parameters of the simulation,
-   comparison with line test measurements, and the characteristics of those line tests,
-   comparison between different simulation methods, and
-   limits of application of validated methods to assessments of pantographs and overhead contact lines
This standard applies to the current collection from an overhead contact line by pantographs mounted on railway vehicles. It does not apply to trolley bus systems.

  • Standard
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This European Standard applies to signalling and telecommunication apparatus that is installed inside the railway environment. Signalling and telecommunication apparatus mounted in vehicles is covered by EN 50121-3-2:2016, signalling and telecommunication apparatus installed inside the substation and connected to substation equipment is covered by EN 50121-5:2016. This European Standard specifies limits for emission and immunity and provides performance criteria for signalling and telecommunications (S&T) apparatus (including power supply systems belonging to S&T) which may interfere with other apparatus inside the railway environment, or increase the total emissions for the railway environment and so risk causing Electro-Magnetic Interference (EMI) to apparatus outside the railway system. The requirements specified in this standard apply for: — vital equipment such as interlocking or command and control; — apparatus inside the 3 m zone; — ports of apparatus inside the 10 m zone with connection inside the 3 m zone; — ports of apparatus inside the 10 m zone with cable length > 30 m. Other apparatus not covered by at least one of these given cases should be in compliance with EN 61000-6-2. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard are not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. The standard does not specify basic personal safety requirements for apparatus such as protection against electric shock, unsafe operation, insulation co-ordination and related dielectric tests. The requirements were developed for and are applicable to this set of apparatus when operating under normal conditions. Fault conditions of the apparatus have not been taken into account. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. For products in the scope of EN 61000-3-2, EN 61000-3-3, EN 61000-3-11 or EN 61000-3-12 the requirements of those standards also apply. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1:2016. The immunity and emission levels do not of themselves guarantee that the integration of apparatus will necessarily be satisfactory. The standard cannot cover all the possible configurations of the apparatus, but the test levels are sufficient to achieve satisfactory EMC in the majority of cases.

  • Amendment
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This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus and systems intended for use in railway fixed installations for power supply. This includes the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items such as switching stations, power autotransformers, booster transformers, substation power switchgear and power switchgear to other longitudinal and local supplies. Filters operating at railway system voltage (for example, for harmonic suppression or power factor correction) are not included in this standard since each site has special requirements. Filters would normally have separate enclosures with separate rules for access. If electromagnetic limits are required, these will appear in the specification for the equipment. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard are not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. Emission and immunity limits are given for items of apparatus which are situated: a) within the boundary of a substation which delivers electric power to a railway; b) beside the track for the purpose of controlling or regulating the railway power supply, including power factor correction; c) along the track for the purpose of supplying electrical power to the railway other than by means of the conductors used for contact current collection, and associated return conductors. Included are high voltage feeder systems within the boundary of the railway which supply substations at which the voltage is reduced to the railway system voltage; d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This category includes power supplies to marshalling yards, maintenance depots and stations; e) various other non-traction power supplies from railway sources which are shared with railway traction. The immunity levels given in this standard apply for: - vital equipment such as protection devices; - equipment having connections to the traction power conductors; - apparatus inside the 3 m zone; - ports of apparatus inside the 10 m zone with connection inside the 3 m zone; - ports of apparatus inside the 10 m zone with cable length > 30 m. Apparatus and systems which are in an environment which can be described as residential, commercial or light industry, even when placed within the physical boundary of the railway substation, shall comply with EN 61000-6-1:2007 for immunity and EN 61000-6-3:2007 for emission requirements. Excluded from the immunity requirements of this standard is power supply apparatus which is intrinsically immune to the tests defined in Tables 1 to 6. NOTE An example is an 18 MVA 230 kV to 25 kV power supply transformer. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1. This part of the standard covers requirements for both apparatus and fixed installations. The sections for fixed installations are not relevant for CE marking.

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Simulation techniques are used to assess the dynamic interaction between overhead contact lines and pantographs, as part of the prediction of current collection quality. This document specifies functional requirements for the validation of such simulation methods to ensure confidence in, and mutual acceptance of the results of the simulations. This document deals with: - input and output parameters of the simulation; - comparison with line test measurements, and the characteristics of those line tests; - validation of pantograph models; - comparison between different simulation methods; - limits of application of validated methods to assessments of pantographs and overhead contact lines. This document applies to the current collection from an overhead contact line by pantographs mounted on railway vehicles. It does not apply to trolley bus systems.

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This Technical Report provides recommendations for DC reversible substations. These recommendations apply
to systems and components that facilitate the flow of energy to and from the upstream AC grid including their
related interfaces.
These recommendations provide the necessary functions for the recovery of braking energy. It is intended to be
used in fixed electrical installations with nominal voltage not exceeding 3 000 V DC which supply electrical
power to vehicles used in public guided transport systems, i.e. railway vehicles, tramway vehicles, underground
vehicles and trolley-buses
It is intended to provide an overview of state-of-the-art applications, define the minimum recommendations that
are presently available, and provide functional recommendations to be applied to these substations.
This document focuses mainly on the substation converters and the traction transformers. Other devices such
as switchgear - if they are the same as in classic substations - are not addressed here. Moreover this
specification addresses performance, constraints, validation and acceptance criteria for the implementation of
reversible substations.
This document provides the minimum recommendations to be fulfilled. However, due to the different possible
solutions and different types of existing technologies, this document does not provide technical specifications of
the basic components that facilitate the functionalities described.

  • Technical report
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In addition to the rules given in IEC 60077-1, this part of IEC 60077 provides general rules for
all electrotechnical components installed in power circuits, auxiliary circuits, control and
indicating circuits, etc., on railway rolling stock.
The purpose of this document is to adapt the general rules given in IEC 60077-1 to all
electrotechnical components for rolling stock, in order to obtain uniformity of requirements
and tests for the corresponding range of components.
Electrotechnical components are mainly switchgear and controlgear, including also relays,
valves, resistors, fuses, etc., irrespective of the nature of their control.
The incorporation of electronic components or electronic subassemblies into electrotechnical
components is now common practice. Although this document is not applicable to electronic
equipment, the presence of electronic components does not give grounds to exclude such
electrotechnical components from the scope of this document.
Electronic subassemblies comply with the relevant standard.
Some of these rules, after agreement between the user and the manufacturer, are used for
electrotechnical components installed on vehicles other than railway rolling stock, such as
mine locomotives, trolleybuses, etc.
This document states:
a) the characteristics of the components;
b) the service conditions with which components have to comply;
c) the tests intended to confirm compliance of the components with these characteristics
under these service conditions, and the methods to be adopted for these tests;
d) the information to be marked on, or given with, the apparatus.
This document does not cover industrial electrotechnical components which comply with their
own product standard. In order to ensure satisfactory operation of these components for
rolling stock, this document is used to specify only the particular requirements for railway
application. In that case, a specific document would state the additional requirements with
which the industrial components are to comply, e.g.:
– to be adapted (for example for control voltage, environmental conditions, etc.); or
– to be installed and used so as not to have to endure specific railway conditions; or
– to be additionally tested to prove that these components can satisfactorily withstand
railway conditions.
In the event of there being a difference in requirements between this document and a railway
rolling stock relevant product standard, then the product standard requirements take
precedence.

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Specifies the general service conditions and requirements for all electric equipment installed in power circuits, auxiliary circuits, control and indicating circuits etc., on rolling stock. Intends to harmonize as far as practicable all rules and requirements of a general nature applicable to electric equipment for rolling stock..

  • Standard
    55 pages
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This European Standard defines the process, protective measures and demonstration of safety in accordance with EN 50126 for the conventional electric traction system of railways applications. The standard can also apply to guided mass transport systems and trolleybus systems. All these systems can be elevated, at-grade and underground.
Other systems including those listed below were not assessed. For similar technology and similar hazardous scenarios the safety considerations of this standard can be applied as a guideline where applicable.
–   underground mine traction systems,
–   cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system,
–   suspended cable cars,
–   funicular railways,
–   magnetic levitated systems,
–   railways with inductive power with inductive contactless transmission of the energy from the electric traction power supply system to the electrically powered traction unit,
–   railways with buried contact line system that is required to be energised only below the train to ensure safety,
This European Standard applies to conventional electric traction systems, which are new or are undergoing major changes on new or existing lines.

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This document applies to onboard lithium-ion traction batteries for railway applications.
This document specifies the design, operation parameters, safety recommendations, data
exchange, routine and type tests, as well as marking and designation.
Battery systems described in this document are used for the energy storage system (ESS) for
the traction power of railway vehicles such as hybrid vehicles as defined in IEC 62864-1:2016.
Auxiliary batteries to supply power only to the auxiliary equipment are excluded.
Subcomponents within the battery systems, e.g. battery management system (BMS) and
battery thermal management system (BTMS), are also covered in this document.
Power conversion equipment (e.g. chopper, converter, etc.), inductors, capacitors and
switchgear are excluded from the scope of this document.
General requirements for onboard ESS are described in IEC 62864-1:2016.
This document specifies the lithium-ion battery technology but does not prevent the use of
battery technologies other than lithium-ion technology for application as traction batteries.
A hybrid energy storage system, which uses two or more energy storage technologies
combined, e.g. a traction battery and double layer capacitors, is not covered in this document.
However, if different technologies of energy storage systems are used on the same railway
vehicle and managed independently, each independent energy storage system is covered by
its own document.

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This European Standard defines the process, protective measures and demonstration of safety in accordance with EN 50126 for the conventional electric traction system of railways applications. The standard can also apply to guided mass transport systems and trolleybus systems. All these systems can be elevated, at-grade and underground. Other systems including those listed below were not assessed. For similar technology and similar hazardous scenarios the safety considerations of this standard can be applied as a guideline where applicable. - underground mine traction systems, - cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system, - suspended cable cars, - funicular railways, - magnetic levitated systems, - railways with inductive power with inductive contactless transmission of the energy from the electric traction power supply system to the electrically powered traction unit, - railways with buried contact line system that is required to be energised only below the train to ensure safety, This European Standard applies to conventional electric traction systems, which are new or are undergoing major changes on new or existing lines.

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Specifies the general service conditions and requirements for all electric equipment installed in power circuits, auxiliary circuits, control and indicating circuits etc., on rolling stock. Intends to harmonize as far as practicable all rules and requirements of a general nature applicable to electric equipment for rolling stock..

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IEC 60050-811:2017 gives the general terminology relating to electric traction used in electrical equipment and systems for railways, as well as general terms pertaining to specific applications and associated technologies. This new edition reviews and complements the previous one. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

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This part 1 of EN 50126 - considers RAMS, understood as reliability, availability, maintainability and safety and their interaction; - considers the generic aspects of the RAMS life cycle. The guidance in this part can still be used in the application of specific standards; - defines: - a process, based on the system life cycle and tasks within it, for managing RAMS; - a systematic process, tailorable to the type and size of the system under consideration, for specifying requirements for RAMS and demonstrating that these requirements are achieved; - addresses railway specifics; - enables conflicts between RAMS elements to be controlled and managed effectively; - does not define: - RAMS targets, quantities, requirements or solutions for specific railway applications; - rules or processes pertaining to the certification of railway products against the requirements of this standard; - an approval process for the railway stakeholders. This part 1 of EN 50126 is applicable to railway application fields, namely Command, Control and Signalling, Rolling Stock and Fixed Installations, and specifically: - to the specification and demonstration of RAMS for all railway applications and at all levels of such an application, as appropriate, from complete railway systems to major systems and to individual and combined subsystems and components within these major systems, including those containing software; in particular: - to new systems; - to new systems integrated into existing systems already accepted, but only to the extent and insofar as the new system with the new functionality is being integrated. It is otherwise not applicable to any unmodified aspects of the existing system; - as far as reasonably practicable, to modifications and extensions of existing systems already accepted, but only to the extent and insofar as existing systems are being modified. It is otherwise not applicable to any unmodified aspect of the existing system; - at all relevant phases of the life cycle of an application; - for use by railway duty holders and the railway suppliers. It is not required to apply this standard to existing systems which remain unmodified, including those systems already compliant with any former version of EN 50126. The process defined by this European Standard assumes that railway duty holders and railway suppliers have business-level policies addressing Quality, Performance and Safety. The approach defined in this standard is consistent with the application of quality management requirements contained within EN ISO 9001.

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This document specifies the requirements and test methods for a stationary energy storage
system to be introduced as a trackside installation and used in a power supply network of a
DC electrified railway. This system can take electrical energy from the DC power supply
network, store the energy, and supply the energy back to the DC power supply network when
necessary. This document does not apply to onboard energy storage systems.
This document applies to systems which are installed to achieve one or more of the following
objectives.
• Absorption of regenerative energy:
– effective use of regenerative energy (saving energy);
– reduction of rolling stock maintenance (reduction of brake shoe/pad wear, etc.);
– avoidance of adverse effects of heat generated during braking (e.g. in tunnels, etc.).
• Power compensation:
– compensation of line voltage;
– reduction of peak power;
– reduction in the requirement of the rectifier ratings.
If this system is combined with one or more of the following functions, this document may be
used as a guideline:
• reverse transmission of regenerated power to the upstream power supply network
(e.g. inverting or reversible substations);
• use of the regenerated energy for purposes other than the running of trains, such as for
station facilities, etc.;
• resistive consumption of regenerated power.
Although it is assumed that the system uses the following typical energy storage technologies,
this document also applies to other existing or future technologies:
• batteries (lithium-ion, nickel metal hydride, etc.);
• capacitors (electric double layer capacitors, lithium-ion capacitors, etc.);
• flywheels.

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This part EN 50124 deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations.
Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and between items of equipment. In dimensioning insulation, electrical stresses and environmental conditions are taken into account. For the same conditions and stresses these dimensions are the same.
An objective of insulation coordination is to avoid unnecessary over dimensioning of insulation.
This standard specifies:
requirements for clearances and creepage distances for equipment;
general requirements for tests pertaining to insulation coordination.
The term equipment relates to a section as defined in 3.3 it may apply to a system, a sub-system, an apparatus, a part of an apparatus, or a physical realisation of an equipotential line.
This standard does not deal with:
distances through solid or liquid insulation;
distances through gases other than air;
distances through air not at atmospheric pressure;
equipment used under extreme conditions.
Product standards have to align with this generic standard.
However, they may require, with justification, different requirements due to safety and/or reliability reasons, e.g. for signalling, and/or particular operating conditions of the equipment itself, e. g. overhead contact lines which have to comply to EN 50119.
This standard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see Annex B).
NOTEFor safety critical systems, specific requirements are needed. These requirements are given in the product specific signalling standard EN 50129.

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This part of EN 50124 applies to:
Fixed installations (downstream the secondary of the substation transformer) and rolling stock equipment linked to the contact line of one of the systems defined in EN 50163;
Rolling stock equipment linked to a train line.
This standard gives simulation and/or test requirements for protection against transient overvoltages of such equipment.
Long-term overvoltages are not treated in this document.

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This draft European Standard is applicable to new low voltage devices for measurement, control and protection which are:
-   for indoor or outdoor fixed installations in traction systems, and
-   operated in conjunction with high voltage equipment with an a.c. line voltage and frequency as specified in EN 50163.
NOTE   EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.
This draft European Standard will also be applied to measurement, control and protective devices other than low voltage devices and not covered by a specific railway product standard as far as reasonably possible. Requirements of this document prevail.

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This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus and systems intended for use in railway fixed installations for power supply. This includes the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items such as switching stations, power autotransformers, booster transformers, substation power switchgear and power switchgear to other longitudinal and local supplies. Filters operating at railway system voltage (for example, for harmonic suppression or power factor correction) are not included in this standard since each site has special requirements. Filters would normally have separate enclosures with separate rules for access. If electromagnetic limits are required, these will appear in the specification for the equipment. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard are not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. Emission and immunity limits are given for items of apparatus which are situated: a) within the boundary of a substation which delivers electric power to a railway; b) beside the track for the purpose of controlling or regulating the railway power supply, including power factor correction; c) along the track for the purpose of supplying electrical power to the railway other than by means of the conductors used for contact current collection, and associated return conductors. Included are high voltage feeder systems within the boundary of the railway which supply substations at which the voltage is reduced to the railway system voltage; d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This category includes power supplies to marshalling yards, maintenance depots and stations; e) various other non-traction power supplies from railway sources which are shared with railway traction. The immunity levels given in this standard apply for: - vital equipment such as protection devices; - equipment having connections to the traction power conductors; - apparatus inside the 3 m zone; - ports of apparatus inside the 10 m zone with connection inside the 3 m zone; - ports of apparatus inside the 10 m zone with cable length > 30 m. Apparatus and systems which are in an environment which can be described as residential, commercial or light industry, even when placed within the physical boundary of the railway substation, shall comply with EN 61000 6 1:2007 for immunity and EN 61000 6 3:2007 for emission requirements. Excluded from the immunity requirements of this standard is power supply apparatus which is intrinsically immune to the tests defined in Tables 1 to 6. NOTE An example is an 18 MVA 230 kV to 25 kV power supply transformer. These specific provisions are to be used in conjunction with the general provisions in EN 50121 1. This part of the standard covers requirements for both apparatus and fixed installations. The sections for fixed installations are not relevant for CE marking.

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This EN 50152-3-2 is applicable to new current transformers which are
   for indoor or outdoor fixed installations in tractions systems, and
   operated with an a.c. line voltage and frequency as specified in EN 50163.
NOTE 1    EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.
As rails of a.c. traction systems are connected to earth and included in the return current path all phase to earth voltages will be within the tolerances as specified in EN 50163. Nevertheless phase to phase voltages may be higher e.g. in autotransformer systems.
Current transformers are mainly used with
   measurement instruments,
   protective devices.
This EN 50152-3-2 shall also be applied to current transformers other than inductive types as far as reasonably possible. Requirements of this EN 50152-3-2 prevail.
NOTE 2   Combined current and voltage transformers are typically not used in fixed installations.

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This EN 50152-3-3 is applicable to new voltage transformers which are
   for indoor or outdoor fixed installations in tractions systems, and
   operated with an a.c. line voltage and frequency as specified in EN 50163.
NOTE 1   EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.
As rails of a.c. traction systems are connected to earth and included in the return current path all phase to earth voltages will be within the tolerances as specified in EN 50163. Nevertheless phase to phase voltages may be higher e.g. in autotransformer systems.
Voltage transformers are mainly used with
   measurement instruments,
   protective devices.
This EN 50152-3-3 shall also be applied to voltage transformers other than inductive types as far as reasonably possible. Requirements of this EN 50152-3-3 prevail.
NOTE 2   Combined current and voltage transformers also capacitive voltage transformers are typically not used in fixed installations.

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This European Standard applies to: - fixed installations (downstream of the secondary of the substation transformer) and rolling stock equipment linked to the contact line of one of the systems defined in EN 50163; - rolling stock equipment linked to a train line. This European Standard gives simulation and/or test requirements for protection against transient overvoltages of such equipment. Long-term overvoltages are not addressed in this document.

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This European Standard deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and between items of equipment. In dimensioning insulation, electrical stresses and environmental conditions are taken into account. For the same conditions and stresses, these dimensions are the same. An objective of insulation coordination is to avoid unnecessary over dimensioning of insulation. This standard specifies: - requirements for clearances and creepage distances for equipment; - general requirements for tests pertaining to insulation coordination. The term equipment relates to a section as defined in 3.3 it may apply to a system, a sub-system, an apparatus, a part of an apparatus, or a physical realization of an equipotential line. This standard does not deal with: - distances through solid or liquid insulation; - distances through gases other than air; - distances through air not at atmospheric pressure; - equipment used under extreme conditions. Product standards should align with this generic standard. However, they may require, with justification, different requirements due to safety and/or reliability reasons, e.g. for signalling, and/or particular operating conditions of the equipment itself, e.g. overhead contact lines which should comply with EN 50119. This standard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see Annex B). NOTE For safety critical systems, specific requirements are needed. These requirements are given in the product specific signalling standard EN 50129.

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D154/023: Direct publication of Annex ZZ

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This European Standard is applicable to new low voltage devices for measurement, control and protection which are: - for indoor or outdoor fixed installations in traction systems, and - operated in conjunction with high voltage equipment with an a.c. line voltage and frequency as specified in EN 50163. NOTE EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz. This European Standard also applies to measurement, control and protective devices other than low voltage devices and not covered by a specific railway product standard as far as reasonably possible. Requirements of this document prevail.

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This European Standard is intended to define the electromagnetic environment of the whole railway system including urban mass transit and light rail system. It describes the measurement method to verify the emissions, and gives the cartography values of the fields most frequently encountered. This European Standard specifies the emission limits of the whole railway system to the outside world. The emission parameters refer to the particular measuring points defined in Clause 5. These emissions should be assumed to exist at all points in the vertical planes which are 10 m from the centre lines of the outer electrified railway tracks, or 10 m from the fence of the substations. Also, the zones above and below the railway system may be affected by electromagnetic emissions and particular cases need to be considered individually. These specific provisions need to be used in conjunction with the general provisions in EN 50121-1. For existing railway lines, it is assumed that compliance with the emission requirements of EN 50121-3-1, EN 50121-3-2, EN 50121-4 and EN 50121 5 will ensure the compliance with the emission values given in this part. For newly build railway systems it is best practice to provide compliance to the emission limits given in this part of the standard (as defined in the EMC plan according to EN 50121-1).

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This European standard outlines the structure and the content of the whole set. It specifies the performance criteria applicable to the whole standards series. Clause 5 provides information about the EMC management. This part alone is not sufficient to give presumption of conformity to the essential requirements of the EMC-Directive and is intended to be used in conjunction with other parts of this standard. Annex A describes the characteristics of the railway system which affect electromagnetic compatibility (EMC) behaviour. Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions (e.g. fault conditions) and the induction effects of direct lightning strike. Emission limits at the railway system boundary do not apply to intentional transmitters within the railway system boundaries. Safety considerations are not covered by this set of standards. The biological effects of non-ionizing radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.

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This European Standard applies to signalling and telecommunication apparatus that is installed inside the railway environment. Signalling and telecommunication apparatus mounted in vehicles is covered by FprEN 50121 3 2:2016, signalling and telecommunication apparatus installed inside the substation and connected to substation equipment is covered by FprEN 50121 5:2016. This European Standard specifies limits for emission and immunity and provides performance criteria for signalling and telecommunications (S&T) apparatus (including power supply systems belonging to S&T) which may interfere with other apparatus inside the railway environment, or increase the total emissions for the railway environment and so risk causing Electro-Magnetic Interference (EMI) to apparatus outside the railway system. The requirements specified given in this standard apply for: — vital equipment such as interlocking or command and control; — apparatus inside the 3 m zone; — ports of apparatus inside the 10 m zone with connection inside the 3 m zone; — ports of apparatus inside the 10 m zone with cable length > 30 m. Other apparatus not covered by at least one of these given cases should be in compliance with EN 61000 6 2. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard are not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. The standard does not specify basic personal safety requirements for apparatus such as protection against electric shock, unsafe operation, insulation co-ordination and related dielectric tests. The requirements were developed for and are applicable to this set of apparatus when operating under normal conditions. Fault conditions of the apparatus have not been taken into account. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. For products in the scope of EN 61000 3 2, EN 61000 3 3, EN 61000 3 11 or EN 61000 3 12 the requirements of those standards also apply. These specific provisions are to be used in conjunction with the general provisions in FprEN 50121 1:2016. The immunity and emission levels do not of themselves guarantee that the integration of apparatus will necessarily be satisfactory. The standard cannot cover all the possible configurations of the apparatus, but the test levels are sufficient to achieve satisfactory EMC in the majority of cases.

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