en 12080:1998 - imt web viewthe nominal voltage of these circuits does not exceed 3 000 v d.c....

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IEC 60077-1:1999 Railway applications - Electric equipment for rolling stockPart 1: General service conditions and general rules

IEC/TC 9

(...) 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. (...).The purpose of this standard is to harmonize as far as practicable all rules and requirements of a general nature applicable to electric equipment for rolling stock. This is in order to obtain uniformity of requirements and tests throughout the corresponding range of equipment to avoid the need for testing to different standards.All requirements relating to

- the environmental stresses expected during the normal service conditions;- the construction;- the performance and the associated tests which can be considered as general;

have therefore been gathered in this standard together with specific subjects of wide interest and application, for example temperature rise, dielectric properties, etc..

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IEC 60077-2:1999 Railway applications – Axleboxes – Lubricating greasesPart 2: Electrotechnical components - General rules

IEC/TC 9

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 rolling stock.The purpose of this standard 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.Eectrotechnical components are mainly swichgear and controlgear, irrespective of their control, including also relays, valves, resistors «, fuses, etc. (...).This atandard 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 standard 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 standard should be used to specify only th eparticular requirements for railway application. In that case, a specific document should 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 installled 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.

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IEC 60077-3:2001 Railway applications - Electric equipment for rolling stockPart 3: Electrotechnical components – Rules for d.c. circuit-breakers

IEC/TC 9

In addition to the general requirements of IEC 60077-2, this part of IEC 60077 gives rules for circuit-breakers, the main contacts of which are to be connected to d.c. power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V d.c. 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 have to comply 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-breakers. (...).This standard does not cover

a. multi-connection of electro-technical components to achieve a particular duty;b. industrial circuit-breakers which have to comply with IEC 60947-2;c. d.c. circuit-breakers for fixed installations which have to comply with IEC 61992-2.

For b) and c), in order to ensure satisfactory operation, this standard should be used to specify only the particular requirements for rolling stock. In such cases, a specific document should stste the additional requirements with which the industrial o r fixed installations circuit breakers are to comply, for example:

a. either to be adapted (e.g. for control voltage, environmental conditions, etc);b. or to be installed ansd used in such a way they do not have to endure specific rolling stock conditions;c. or to be additionally tested to prove that these components can withstand satisfactorily the rolling stock conditions.

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IEC 60077-4:2003 Railway applications - Electric equipment for rolling stockPart 4: Electrotechnical components - Rules for AC circuit-breakers

IEC/TC 9

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 to be connected to AC overhead contact lines; the nominal voltage of these circuits being in accordance with IEC 60850. This standard, together with IEC 60077-2, states specifically:

e) the characteristics of the circuit-breakers;f) the service conditions with which circuit-breakers have to comply with reference to:

a. operation and behaviour in normal service,b. operation and behaviour in short-circuit,c. dielectric properties;

g) 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;

h) the information to be marked on, or given with the circuit-breakers. (...).This standard does not cover industrial circuit-breakers which have to comply with IEC 60056. For these, in order to ensure satisfactory operation, this standard should be used to specify only the particular requirements for rolling stock. In such case , a specific document should state the additional requirements with which the industrial circuit-breakers are to comply, for exemple:

a. either to be adapted (e.g. for control voltage, environmental conditions, etc);b. or to be installed ansd used so that they do not have to endure specific rolling stock conditions;c. or to be additional tested to prove that these components can withstand satisfactorily the rolling stock conditions.

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IEC 60077-5:2003 Railway applications - Electric equipment for rolling stockPart 5: Electrotechnical components - Rules for HV fuses

IEC/TC 9

(…) is to give additional or amended rules for high voltage fuses as a supplement to those given by IEC 60077-2.NOTE In this product standard the term high voltage fuses iis used in the context of the voltages used in the field of railway rolling stock.The high voltage fuses concerned are those to be connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V d.c. and 300 V d.c., according to IEC 60850. These fuses may alsobe used in auxiliary a.c. circuits up to a nominal voltage of 1500 V.Note Certain of these rules may, after agreement between user amd manufacturer, be used for fuses installed on vehicles other than rail rolling stock such as mine locomotives, trolleybuses, etc..This product standard together with IEC 60077-2 states specifically:

a) characteristics of the fuses;b) the service conditions with which the fuses have to 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 to be

adopted for these tests;d) the information to be marked on, or given with the fuse.

(...). During preparation of this product standard, IEC 60269-1 and IEC 60282-1 have been considered and their requirements have been kept as far as possible.(...) 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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IEC 60310:2004 Railway applications – Traction transformers and inductors on board rolling stock IEC/TC 9

(...) applies to traction transformers installed on board rolling stock and to the various types of inductors inserted in the power and auxiliary circuits of electric vehicles.Note 1 The term “inductor” is used in this standardwith the same meaning as the term “reactor”mentioned in IEC 60050(421), IEC 60050(811) and IEC 60289.The inductors mentioned in the first paragraph may be:

- filter inductors;- smoothing inductors;- commutation inductors;- protection inductors in static power convertors;- inductive shunts for traction motors;- braking circuit inductors;- interference suppression inductors.

Note 2 The requirements of IEC 60076 are applicable to traction transformers where they do not conflit with this standard, or with the specialized IEC publications dealing with traction applications.Note 3 For transformersand inductors for staticpower convertors, reference should also be made to IEC 61287.(...) can also be applied, after agreement between user and manufacturer, to the traction transformer of three-phase a. c. line-side powered vehicles and to transformers inserted in the single-phase or polyphase auxiliary circuits of vehicles, except for instrument transformers and transformers of a rated output below 1 kVA single-phase or 5 kVA polyphase.(...) does not cover accessories such as tap changers, resistors, heat exchangers, fans, etc., intended for mounting on the transformers or inductors, which shall be tested separately according to relevant rules.When tap changers are an integral part of the transformers, they cannot be separated while the latter are tested.For service conditions, refer to IEC 60077-1, Clause 7.

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IEC 60322:2001 Railway applications - Electric equipment for rolling stock - Rules for power resistors of open construction

IEC/TC 9

(...) gives the rules for all power resistors (for example, braking, heating, snubber and filter) used in the power and auxiliary circuits on board rolling stock irrespective of the circuit and the type of vehicle where they are used.These resistors are generally pof open construction and are used in polluted areas. The construction consists of resistor elements of grids, plates, strips, ribbons or wires. (...).This standard states:

d. the characteristics of the resistors;e. the service conditions with which the power resistors have to comply;f. the tests intended for confirming that these conditions have been met and the methods to be adopted for these tests;g. the information to be marked on, or given with , the resistors.

(...). The object of this standard is to adapt the general rules given in IEC 60077-1 to power resistors for rolling stock in order to obtain uniformity of requirements and tests throughout the corresponding range of components and to avoid the need for testing to two different standards.

IEC 60349-1:1999 + A1:2002

Electric traction - Rotating electrical machines for rail and road vehiclesPart 1: Machines other than electronic convertor-fed alternating current motors

IEC/TC 9

(...) is applicable to rotating electrical machines, other than electronic co vertor-fed alternating current motors, forming part of the equipment of electrically propelled rail and road vehicles. The vehicles may obtain power either from an external supply or from an internal source.The object of this standard is to enable the performance of a machine to be confirmed by tests and to provide a basis for assessment of its suitability for a specified duty and for comparison with other machines. (...).

IEC 60349-2:2002 Electric traction - Rotating electrical machines for rail and road vehiclesPart 2: Electronic convertor-fed alternating current motors

IEC/TC 9

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(...) applies to convertor-fed alternating current motors forming part of the equipment of electrically propelled rail ans road vehicles.The object of this part is to enable the performance of a motor to be confirmed by tests and to provide a basis for assessment of its suitability for a spedified duty and for comparison with other motors.Particular attention is drawn to the need for collaboration between the designers of the motor and its associated convertor as detailed in clause 3.1. (...).

IEC/TS 60349-3:1995 Electric traction - Rotating electrical machines for rail and road vehiclesPart 3: Determination of the total losses of convertor-fed alternating current motors by summation of the component losses

IEC/TC 9

(...) applies to machines complying with IEC 60349-2.The total losses of a convertor-fed motor may be determined by summation of the component losses derived from no-load and load tests. The total input power is the sum of the power at the fundamental frequency and at all other frequencies. In all pratical cases the latter input includes the losses resulting from the voltage and current harmonics in the convertor supply by using sentable instrumentation it can be derived from measurement of the total and fundamental frequency power inputs when the machine is load.The losses supplied at the fundamental frequency cannot be measured directly and so are derived from measurement of the fundamental frequency no-load power input.

IEC 60494-1:2002 Railway applications - Rolling stock - Pantographs - Characteristics and testsPart 1: Pantographs for mainline vehicles

IEC/TC 9

(…) defines the general assembly characteristics which are to be applied to pantographs for main line vehicles, to enable current collection from the overhead line system. It also defines the tests the pantographs have to perform, excluding insulators.(...) does not apply to pantograph dielectric test, which are to be performed on the pantograph installed on the vehicle roof.(...) does not apply to pantographs used on isolated metros and light rail systems: the pantographs are considered in IEC 60494-2.

IEC 60494-2:2002 Railway applications - Rolling stock - Pantographs - Characteristics and testsPart 2: Pantographs for metros and light rail vehicles

IEC/TC 9

(…) defines the general assembly characteristics which are to be applied to pantographs for metros and light rail vehicles, to enable current collection from the overhead line system. It also defines the tests the pantographs have to perform, excliding insulators.(...) does not aplly to pantograph dielectric test, which are to be performed on the pantograph installed on the vehicle roof.These rules in so far as they are applicable are also valid for trolley buses.(...). (...) relates to conventional suspended overhead line systems and accessories. The systems (on part of them) which are rigidly suspended will require special consideration between the customer and the supplier.

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IEC 60571:1998+A1:2006

Electronic equipment used on rail vehicles IEC/TC 9 (...) applies to all electronic equipment for control, regulation, protection, supply, etc., installed on rail vehicles and associated with

h. either the accumulator battery of the vehicle;i. or a low-voltage power supply source with or without a direct connection to the contact system (transformer, potentiometer device,

auxiliary supply) with the exception of electronic power circuits, which conform to IEC 61287-1.(...) covers the conditions of operation, design, construction, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for competent, reliable equipment.Additional requirements in other standards or individual specifications may complement this standard, if they are justified. (...).For the purpose of this standard, electronic equipment is defined as equipment mainly composed of semicondutor devices and recognized associated components. These components will mainly be mounted on printed boards. (...).

IEC 60631:1978 Characteristics and tests for electrodynamic and electromagnetic braking systems IEC/TC 9

(...) applies to electrodynamic, electromagnetic and composite braking systems of d.c., a.c. and multi-system electric locomotives and motor coaches and of vehicles powered by heat engines used on rail systems. It does not apply to electrically controlled mechanical braking systems. This standard, in so far as it is applicable, is also valid for tramcars, trolleybuses and vehicles for underground railways.

IEC/TR 60638:1979 Criteria for assessing and coding of the commutation of rotating electrical machines for traction

IEC/TC 9

9


(...) applies to all machines covered by IEC Publication 349, Rules for Rotating Electrical Machines for Rail and Road Vehicles, and having cylindrical commutators.It complets IEC Publication 349 as regards:

- the criteria for assessment of commutation;- the definition of the tests during the course of which the observations shall be made;- the code recommended for the specification of these observations.

Slip rings of traction machines are at present excluded from this report.

IEC 60850:2000 Railway applications - Supply voltages of traction systems IEC/TC 9(...) applies to line voltages to traction systems under normal operating conditions.It is concerned with the mean value of d.c. voltage or the r.m.s. value of the fundamental (1st harmonic) a.c. voltage.NOTE Specifications in other international documents referring to “the maximum voltage value specified in IEC 60850” have to be interpreted as referring to Umax1 until such time as these documents have determined the appropriate definition of maximum voltage following the publication of IEC 60850.For urban transit networks, in France which complied with the relevant national standard prior to the publication of this standard , this former standard may be applied to partial renewals of equipment for those networks in so far as mixing is demonstrable, till 2011-03-01.

IEC 60913:1988 Electric traction overhead lines IEC/TC 9 (...) is apllicable to electric traction overhead lines (in accordance with the definition given in Sub-clause 1.2.1) for railways, tramways and trolleybuses. It is not applicable to feeders remote from the track.It is recommended that these provisions should be applied to electric traction overhead lines of new construction or when complete transformation of existing lines takes place.In the absence of national regulations or standards, this standard shall be complied with.

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IEC 61133:2006 Electric traction - Rolling stock - Test methods for electric and thermal/electric rolling stock on completion of construction and before entry into service

IEC/TC 9

(specifies general criteria to demonstrate by testing that newly constructed complete railway vehicles conform with standards or other normative documents.(...), as a whole or in part , applies to all railway vehicles except special purpose vehicles such as track-laying machines, ballast cleaners and personnal carriers. The extent of application of the standard for particular vehicles will be specifically mentioned in the contract.NOTE 1 The parts of the standard which are applicable will depend on the type of vehicle (e.g. passenger, freight, powered trailer, etc. ).NOTE 2 (...) excludes railbound and road/rail vehicles for construction and maintenance of railway infrastructure.NOTE 3 (...) does not deal with tests carried out on components or equipment before fitting to the vehicle.Insofar as this standar d is applicable it may be used for the following:

- generator sets mounted on a vehicle provided for auxiliary purposes;- the electrical trnsmission used on trolley buses or similar vehicles;- control and auxiliary equipment of vehicles with non-electrical propulsion systems;- vehicles guided, supported or elecrtrically propelled by systems which do not use the adhesion between whell and rail.

IEC 61287-1:2005 Power convertors installed on board rolling stockPart 1: Characteristics and test methods

IEC/TC 9

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(...) applicable to power electronic convertors mounted on board railway rolling-stock and intended for supplying- traction circuits;- auxiliary circuits of power vehicles, coaches and trailers.

The application of this standard extends as far as possible to all other traction vehicles, including trolley-buses, for example.(...) covers the complete convertor assembly together with its mounting arrangements containing

- semicondutor device assemblies;- integrated cooling systems;- components of the intermediate d.c.link, including any necessary filters associated with the d.c. lomk;- semiconductor drive units (SDU) and related sensors;- incorporated protection circuits.

The following types of power sources are taken into consideration:- a.c. contact lines,- d.c. contact lines;- on-board supplies such as generators, batteries and other electric power sources.

(...) excludes convertors which provide the electronic control supply for SDU and other supplies relevant to the convertor operation such as sensors.NOTE Electronic control equipment of convertors and those sensors not related to semiconductor drive units and the printed circuit board assemblies of drive units for power semiconductors (SDU) are covered by 60571.(...) defines terminology, service conditions, general characteristics and test methods of electronic power convertors onboard of rolling stock.

IEC/TS 61287-2:2001 Power convertors installed on board railway rolling stockPart 2: Additional technical information

IEC/TC 9

This technical specification shows basic circuit configurations , control methods, operation modes and behaviour of electric power convertors for rolling stock such as external commutated rectifiers, self-commutated rectifiers, choppers and inverters. It describes typical charts and methods, but does not claim to be exhaustive.(...) intended to provide supplementary technical information in the standards of the IEC 61287 series.The main purpose of this specification is to calculate power quantities such as input/output voltage, input/output current, frequency spectrum of voltage/ current, voltage/ current ripple and voltage/ current harmonics.

IEC 61373:1999 Railway applications - Rolling stock equipment - Shock and vibration tests IEC/TC 9

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(...) specifies the requirements for testing items of equipment intended for use on railway vehicles which are subsequently subjected to vibrations and shock owing to the nature of railway operational environment. To gain assurance that the quality of the item is acceptable, it has to withstand tests of reasonable duration that simulate the service conditions seen throughout its expected life.Simulated long-life testing can be achieved in a number of ways each having their associated advantages and disadvantages, the following being the most common:

a) amplification: where the amplitudes are increased and the time base decreased;b) time compression: where the amplitude history is retained and the time base is decreased;c) decimation: where time slices of the historical data are removed when the amplitudes are below a specified threshold value.

The amplification method as stated in a) above, is used in this standard and together with the publications referred to in clause 2;It defines the default test procedure to be followed when vibration testing items for use on railway vehicles. However, other standards do exist and may be used with prior agreement between the manufacturer and the customer. In such cases attestation of testing against this standard will not apply. Where service information is available comparison with the standard can be performed using the method outlined in annex A.Whilst this standard is primarily concerned with railway vehicles on fixed rail systems, its wider use is not precluded. For systems operating on pneumatic tyres, or other transportation systems such as trolleybuses, where the level of shock and vibration clearly differ from those obtained on fixed rail systems, the supplier and customer can agree at the tender stage, the test levels. It is recommended that the frequency spectra and the shock duration/amplitude be determined using the guidelines set out in annex A.Items tested at levels outside those quotwed in this standard can not be certified against the requirements of this standard.An exemple of this is trolleybuses, whereby body-mounted trolleybus equipment could be tested in accordance with category 1 equipment referred to in the standard.This standard appliies to single axis standard. (...).The test values quoted in this standard have been divided into three categories dependent only upon the equipment`s location within the vehicle.Category 1 Body mounted (...).Category 2 Bogie mounted (...).Category 3 Axle mounted (...).(...). (...) intended to evaluate equipment which is attached to the main structure of the vehicle (and/or components mounted thereon). (...). There are a number of cases where additional or special vibration tests may be requested by the customer (...).

IEC/TR3 61374:1997 Overvoltages in traction supply systems IEC/TC 9

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(...) establishes useful information concerning transient overvoltages in electrical traction supply systems. The information contained in this report was complied from the circulation of a questionaire. It is hoped that this report will help progress the work being, carried out in the area of overvoltages. Comments of the content of this report should be sent to IEC central office.

IEC 61375-1:2007 Electric railway equipment - Train busPart 1: Train communication network

IEC/TC 9

(...) applies to data communication in Open Trains, i.e. it covers data communication between vehicles of the said open trains and data communication within the vehicles of the said open trains.The applicability of this standard to the train communication bus (WTB) allows for interoperability of individual vehicles within Open Trains in international traffic. The data communication bus inside vehicles (MVB) is given as recommended solution to cope with the said TCN. In any case, proof of compatibility between WTB and a proposed vehicle bus will have to be brought by the supplier.(...) may be additionally applicable to closed trains and multiple unit trains when so agreed between purchaser and supplier.

NOTE 1 For a definition of Open Trains, Multiple Unit Trains and Closed Trains, see 1.3.NOTE 2 Road vehicles such as buses and trolley buses are not considered in this standard.

IEC 61375-2:2007 Electric railway equipment - Train busPart 2: Train communication network conformance testing

IEC/TC 9

(...) applies to all equipment and devices implemented according to IEC 61375-1, i.e. it covers the procedure to be applied to such equipment and devices when the conformance should be proven.The applicability of this standard to a TCN implementation allows for individual conformance checking of the implementation itself and is a pre-requisite for further interoperability checking between different TCN implementations.

NOTE 1 For a definition of TCN implementation see 1.3.

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IEC 61377-1:2006 Railway applications – Rolling stockPart 1: Combined testing of inverter-fed alternating current motors and their control system

IEC/TC 9

(…) applies to the combinations of motor(s), inverter and their control system, and its object is to specify:- the performance characteristics of electric drives consisting of an inverter, alternating current motors, and the related control system;- methods of verifying these performance characteristics by tests.

Two categories of combined systems can be considered:a) alternating current motors fed from an inverter without any control between the mechanical output (torque, speed) and the inverter

itself (mostly auxiliary motors, for exemple cooling fan motors). The motor works exactly as if it were fed from a busbar (at variable frequency and voltage or not);

b) alternating current motor(s) (paralleled or not) with a control between the mechanical output and the inverter.The first categorie of systems is tested according to IEC 60349-2 and IEC 61287-1.This standard applies to the second category, mainly traction drives.(...)IEC 60349-2 applies to convertor-fed alternating current motors, IEC 61287-1 to power electronic convertors, IEC 60571 to electronic equipments, and this standard applies to the combination of motor(s), inverter and their control system. As a consequence, IEC 60349-2 describes the tests to demonstrate the compliance of the motor to its specification, IEC 61287-1 does the same for the inverter. It is self-evident that some of the tests mentioned in this standard generally may replace the corresponding ones described in the above-mencioned standards. An agreement should be reached between the parties to avoid the duplication of tests.A complete combined test is heavy, and often requires high power, which is not always available in a workshop. An agreement between user and manufacturer may be reached to allow testing either in the workshop or on the vehicles. Testing may be split off partially in a workshop and partially on track.At the time of drafting this standard, only the following combinations motors and inverters were used for traction applications, but itmay also apply to other combinations which may be used in the future:

- asynchronous motors fed by voltage stiff (voltage source) inverter;- asynchronous motors fed by current stiff (voltage source) inverter;- synchronous motors fed by voltage stiff (voltage source) inverter.

The input of these inverters can be a d.c. supply line, a rectifier, a chopper, an input convertor, a diesel generator with integrated rectifiers, etc.

IEC 61377-2:2002 Railway applications - Rolling stock - Combined testingPart 2: Chopper-fed direct current traction motors and their control

IEC/TC 9

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(…) applies to the combinations of motor(s), chopper and their control, and its object is to specify- the performance characteristics of electric drives consisting of a chopper, direct current motors, and the related control system;- methods of verifying these performance characteristics by tests.

In traction drives, a combined system with chopper and direct current motor(s) without any control between the mechanical output and the chopper is not usual. It is not, therefore, considered in this standard.~(...) Figure 1a – Combined system with series d.c. motor.(...) Figure 1 – Traction drive.IEC 60349-1 applies to chopper-fed direct current motors, IEC 61287-1 to power electronic convertors, and IEC 60571 to electronic equipments.(...) applies to the combination of motor(s), chopper, and their control. As a consequence, IEC 60349-1 describes the tests to demonstrate the compliance of the motor to its specification, while IEC 61287-1 does the same for the chopper. It is self-evident that some of the tests mentioned in this standard may generally replace the corresponding ones described in the above-mentioned standards. An agreement should be reached between the parties to avoid the duplication of tests.A complete combined test is heavy and often requires high power, which is not always available in a workshop. An agreement between the user and the manufacturer may be reached to allow testing either in the workshop or on the vehicle.At the time of drafting this standard, only the following combinations of motors and choppers are used for traction applications, but it may also apply to other combinations, which may be used in the future:

- direct current series motors (one or more connected in series and/or in parallel) fed by a chopper converter (figure 1a)- direct current separately excited motors (one or more connected in series) fed by a chopper converter (figure 1b).

For both cases, electrical braking circuits, if used, are included.The separate exciting circuits and their control, or the shunting circuit and their control, for series motors, are considered as a part of the combined system.(...). The d.c. source can be a supply line, a rectifier, a chopper, an input convertor, and a diesel generator with integrated rectifiers, etc.Environmental conditions relative to motor, chopper, and control system are detailed in IEC 60349-1, IEC 61287-1 and IEC 60571.

IEC 61377-3:2002 Railway applications - Rolling stockPart 3: Combined testing of alternating current motors, fed by an indirect convertor, and their control system

IEC/TC 9

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(…) applies to the combinations of motor(s), indirect convertors and their control system and its object is to specify:- the performance characteristics of electric drives consisting of a convertor, alternating current motors, and the related control system;- methods of verifying these performance characteristics by tesys.

Two categories of combined systems can be considered :a) alternating current motors fed from a convertor without any control between the mechanical output (torque, speed) and the convertor itself

(mostly auxiliary motors, for example cooling fan motors). The motor works exactly as if it were fed from a busbar (at variable frequency and voltage or not).

b) alternating current motor(s) (paralleled or not) with a control between the mechanical output and the inverter.The first category of systems is tested according to IEC 60349-2 and IEC 61287-1.(...) applies to the second category, mainly traction drives.IEC 60349-2 applies to convertor-fed alternating current motors, IEC 61287-1 to power electronic convertors; IEC 60571 applies to electronic equipment; this standard applies to the combination of motor(s), convertors, and their control system. As a consequence, IEC 60349-2 describes the tests to demonstrate the compliance of the motor to its specification, IEC 61287-1 doesmthe same for the convertor. It is self-evident that some of the tests mentioned in this standard may in general replace the corresponding ones described in the above mentioned standards. An agreement should be reached between the parties to avoid the duplication of tests.A complete combined test is heavy, and often requires high power, which is not always available in workshop. An agreement should be reached between the parties to avoid the duplication of tests.At the time of drafting of this standard, only the following combinations of motors and inverters have been used for traction applications, but it may also apply to other combinations which may be used in the future:

- asynchronous motors fed by voltage stiff (voltage source) inverter;- asynchronous motors fed by current stiff (current source) inverter;- synchronous motors fed by current stiff (current source) inverter.

The input of these inverters (see figure 2) can be a d.c. supply line or an intermediate d.c. link, which can be obtained from an a.c. line by means of a rectifier (2.2.1 of IEC 61287-1) or from a d.c. line by means of a chopper (2.2.2 of IEC 61287-1) or from autonomous supplies (such as on-board generators, accumulators or other electric energy sources) (1.1 of IEC 61287-1).

IEC 61881:1999 Railway applications - Rolling stock equipment - Capacitors for power electronics IEC/TC 9

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(…) applies to capacitors for power electronics intended to be used on rolling stock.The rated voltage of capacitors covered by this part is limited to 10 000V.The operating frequency of the systems in which these capacitors are used is usually below 2 500 Hz, while the pulse frequencies may go up to several thousand hertz, in some cases beyond 10 000Hz.It distinguishes between a.c. and d.c. capacitors.They are considered as components mounted in enclosures. (...).Examples are given in clause 6.

IEC 61991:2000 Railway applications - Rolling stock - Protective provisions against electrical hazards

IEC/TC 9

(…) applied in the design and manufacture of electrical installations and equipment to be used on rolling stock so as to protect the persons from elctric shocks.The methods used to satisfy the rules may differ, in accordance with the procedures and practices of the operating organization.(...) applicable to vehicles of rail transport systems, road vehicles powered by an external supply (trolley buses), magnetic levitated vehicles and to the electrical equipment installed in these vehicles.(...). Testing of vehicles against the requirements of IEC 61991 is not included. For this, refer to IEC 61133.

IEC 61992-1:2006 Railway applications – Fixed installations – DC switchgearPart 1: General

IEC/TC 9

(...) specifies requirements for d.c. switchgear and controlgear and is intended to be used in fixed electrical installations with nominal voltage not exceeding 3 000 V d.c. which supply electrical power to vehicles for public guided transport, i.e. railway vehicles, tramway vehicles, underground vehicles and trolley-buses.This Part 1 specifies general requirements.

IEC 61992-2:2006 Railway applications – Fixed installations – DC switchgearPart 2: Circuit-breakers

IEC/TC 9

(...) specifies requirements for d.c. circuit-breakers for use in fixed installations of traction systems.NOTE Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this standard, but by other parts of this standard or by other standards, as indicated in IEC 61992-1.

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IEC 61992-3:2006 Railway applications – Fixed installations – DC switchgearPart 3: Indoor d.c. disconnectors, switch disconnectors and earthing switches

IEC/TC 9

(...) specifies requirements for d.c. disconnectors, switch-disconnectors and earthing switches for use in outdoor fixed installations of traction systems.NOTE 1 Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this standard, but rather by other parts of the IEC 61992 series or other documents as indicated in IEC 61992-1.NOTE 2 this standard the word “unit” means “disconnectors and/or switch-disconnector and/or earthing switch” as defined in 3.1.5, 3.1.6 and 3.1.7 of IEC 61992-1.NOTE 3 Disconnectors, switch-disconnectors and earthing switches may have electrically latched mechanisms and, in such cases, may be indicated with the current term of “power contactors”.

IEC 61992-4:2006 Railway applications – Fixed installations – DC switchgearPart 4: Outdoor d.c. disconnectors, switch disconnectors and earthing switches

IEC/TC 9

(...) specifies requirements for d.c. disconnectors, switch-disconnectors and earthing switches for use in outdoor fixed installations of traction systems.NOTE 1 EN 50121-5 specifies requirements for electromagnetic compatibility (EMC).NOTE 2 In this standard the word “unit” means “switch-disconnectors and/or disconnector and/or earthing switch” as defined in 3.1.5, 3.1.6 and 3.1.7 of IEC 61992-1.

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IEC 61992-5:2006 Railway applications – Fixed installations – DC switchgearPart 5: Surge arresters and low-voltage limiters for specific use in d.c. systems

IEC/TC 9

Clauses 4, 5 and 6 of this part of IEC61992 cover particular requirements for surge arresters (following named arresters) for specific use in fixed installations of d.c. traction systems. These are surge arresters consisting of one or more non-linear resistors which may be in series with single or multiple spark gaps.Low-voltage limiters are covered under Clause 7. These are protective devices mainly used in fixed installations of d.c. traction systems to connect certain portions of the circuit, when, owing to an abnormal situation, the voltage across the device exceeds a predetermined limited value. They may be associated with other devices such as contactors for self-restoring arrangements. They are not used in general to provide surge protection.The following are the main uses of Low-Voltage Limiters (LVL):

- connection to the rail of metallic masses;- protection of rail circuits;- earthing of rails in the substation;- protection of cathodic circuits;- protection of cable shields.

IEC 61992-6:2006 Railway applications – Fixed installations – DC switchgearPart 6: DC switchgear assemblies

IEC/TC 9

(...) covers d. c. metal-enclosed and non-metallic enclosed switchgear assemblies used in indoor stationary installations of traction systems, with nominal voltage not exceeding 3 000 V.It is intended that individual items of equipment, for example circuit breakers, housed in the assembly are designed, manufactured and individually tested (simulating the enclosure when necessary) in accordance with their respective parts of IEC 61992 or, when appropriate, with another applicable standard.NOTE 1 The requirements covered in this part of IEC 61992 are those concerning the assembly as such, its enclosure and the mutual influence of the equipment enclosed.NOTE 2 EMC requirements are covered by IEC 62236-5 and additional requirements concerning dependability (RAMS) are covered by IEC 62278.

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IEC 61992-7-1:2006 Railway applications – Fixed installations – DC switchgearPart 7-1: Measurement, control and protection devices for specific use in d.c. traction systems – Application guide

IEC/TC 9

(...) provides assistance, guidance and requirements for the design of protection, control and measuring systems in d.c. installations intended to provide a power supply to traction systems. This application guide identifies the characteristics and parameters of equipment used in the measurement, control and protection of d.c. traction systems.Guidance is given concerning the appropriate application of electrical protection systems.

IEC 61992-7-2:2006 Railway applications – Fixed installations – DC switchgearPart 7-2: Measurement, control and protection devices for specific use in d.c. traction systems – Isolating current transducers and other current measuring devices

IEC/TC 9

(...) gives the requirements for isolating current transducers and other current measuring devices used in d.c. railway applications, fixed installations.This transducer is normally positioned between the sensor in the live switchboard conductor or rail and the secondary device, giving galvanic insulation between the input and the output.

IEC 61992-7-3:2006 Railway applications – Fixed installations – DC switchgearPart 7-3: Measurement, control and protection devices for specific use in d.c. traction systems – Isolating voltage transducers and other voltage measuring devices

IEC/TC 9

(...) gives the requirements for isolating voltage transducers and other voltage measuring devices used in d.c. railway applications, fixed installations.This transducer is normally positioned between the voltage on the live switchboard conductor or rail and the secondary device, giving galvanic insulation between the input and the output.

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IEC 62128-1:2003 Railway applications - Fixed installationsPart 1: Protective provisions relating to electrical safety and earthing

IEC/TC 9

(…) specifies requirements for the protective provisions relating to electrical safety in fixed installations associated with a.c. and d.c.traction systems and to any installationsthat may be endangered by the traction power supply system.It also applies to all fixed installations that are necessary to ensure electrical safety during maintenance work within electric traction systems.NOTE Other provisions to protect work sites for maintenance purposeswhich are not included in this standard may be required.(...) applies to all new lines and to all major revisions to existing lines for the following electric traction systems:

- railways;- guided mass transport systems such as : tramways, elevated and underground railways, mountain railways, trolleybus systems and

magnetic levitated systems;- material transportation systems.

(...) does not apply to:- traction systems in underground mines;- cranes, transportable platforms and similar transportation equipment on rails, temporary structures ( for example: 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;- maintenance work.

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IEC 62128-2:2003 Railway applications - Fixed installationsPart 2: Protective provisions against the effects of stray currents caused by d.c. traction systems

IEC/TC 9

(…) specifies requirements for protective provisions against the effects of stray currents which result from the operation of d.c. traction systems.As the experience of several decades has not shown evident corrosion effects from a.c. traction systems and actual investigations are not completed, this standard only deals with stray currents flowing from a d.c. traction system.(...) applies to all metallic fixed installations which form part of the traction system, and also to any other metallic components located in any position in the earth, which may carry stray currents resulting from the operation of the railway system.(...) applies to all new electrification of a d.c. railway system. The principles may also be applied to existing electrified systems where it is necessary to considerer the effects of stray currents.The range of application includes:

- railways;- guided mass transport systems such as: tramways, elevated and underground railways, mountain railways, trolleybus systems and

magnetic levitated systems;- material transportation systems

(...).

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IEC 62236-1:2003 Railway applications - Electromagnetic compatibilityPart 1: General

IEC/TC 9

(...) outlines the structureand the content of the whole series.Annex A describes the characteristics of the railway system which affect electromagnetic compatibility (EMC) behaviour. Annex B specifies a management process for achieving EMC at the interface between the railway infrastructure and trains.The objective of the whole series of standards is to specify the EM emission and immunity requirements for railway products, and for the railway as an installation.(...). Emission limits at the railway boundary do not apply to intencional transmitters within the railway boundaries. (...).(...) is supplemented by the following specific standards:IEC 62236-2, Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside worldIEC 62236-3-1, Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock - Train and complete vehicleIEC 62236-3-2, Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock – ApparatusIEC 62236-4, Railway applications - Electromagnetic compatibility – Part 4: Emission and immunity of the signalling and telecommunications apparatusIEC 62236-5, Railway applications - Electromagnetic compatibility – Part 5: Emission and immunity of fixed power supply installations and apparatus

IEC 62236-2:2003 Railway applications – Electromagnetic compatibilityPart 2: Emission of the whole railway system to the outside world

IEC/TC 9

(…) sets the emission limits from the whole railway system including urban vehicles for use in city streets, it describes the measurement method to verify the emissions, and gives the cartography values of the fields most frequently encountered.These specific provisions are to be used in conjunction with the general provisions in IEC 62236-1.The limits refer to the particular measuring points defined in clause 5 and annex A. 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.Alsothe zones above and below the railway may be affected by electromagnetic emissions and particular cases shall be considered individually.Excluded from the limits is apparatus which complies with the generic industrial emission standard IEC 61000-6-4.

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IEC 62236-3-1:2003 Railway applications - Electromagnetic compatibilityPart 3-1: Rolling stock - Train and complete vehicle

IEC/TC 9

(…) specifiesthe emission and immunity requirements for all types of rolling stock. It covers traction stock and trainsets including urban vehicles for use in city streets.The frequency range considered is from d.c. to 400GHz. At present, testing is not defined for frequencies above 2 GHz.The scope of this part of this standard ends at the interface of the stock with its respective energy inputs and outputs. In the case of locomotives, trainsets, trams, etc this is the slidingcontact (or the third rail), in case of hauled stock this is the a.c. or d.c. auxiliary power connector. However, since the pantograph is part of the tractive stock, it is not entirely possible to excluded the effects of this interface.The electromagnetic interference concerning the railway system as a whole is dealt in IEC 62236-2.These specific provisions are additional to the general provisions in IEC 62236-1.

IEC 62236-3-2:2003 Railway applications - Electromagnetic compatibilityPart 3-2: Rolling stock - Apparatus

IEC/TC 9

25


(...) applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock.The frequency range considered is from d.c. to 400GHz. At present, testing is not defined for frequencies above 2 GHz.The application of tests shall depend on the particular apparatus, its configuration, its ports, its tecnhology and its operating conditions.This standard takes into a account the internal environment of the railway rolling stock and the external environment of the railway, and the interference to the apparatus from equipment such as hand-held radio transmitters.If a port is intended to transmit or receive for thr purpose of radio communication (intentional radiators, e.g. transponder systems) then the emission and immunity limits in this standard at the communication frequency do not apply.(...). The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances.These limits and tests represent essential electromagnetic compatibility requirements.Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended.Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus.The levels do not however cover extreme cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this standard shall be specified.Test requirements are specified for each port considered.These specific provisions are additional to the general provisions in IEC 62236-1.

IEC 62236-4:2003 Railway applications - Electromagnetic compatibilityPart 4: Emission and immunity of the signalling and telecommunications apparatus

IEC/TC 9

26


(…) applies to signalling and telecommunication apparatus which is installed in the railway environment. Signalling and telecommunication apparatus mounted in vehicles is covered by IEC 62236-3-2.(...) specifies limits for emission and immunity and provides performance criteria for signalling and telecommunication (S&T) apparatus which may interfere with other apparatus in the railway environment, or increase the total emissions for the railway environment beyond the limits defined in the appropriate standard, and so risk causing ElectroMagnetic Interference /EMI) to apparatus outside the railway system.Apparatus which complies with the emission levels of IEC 61000-6-4 will meet the emission requirements of this standard provided that emissions from any d.c. power port are within the emissions limits specified for a.c. power ports. The immunity levels of IEC 61000-6-2 will also be adequate except for the special case of apparatus installed close to the rails. This standard provides the immunity requirements for such apparatus.The immunity levels given for the apparatus will in most cases allow the apparatus to perform as intended in the railway environment (see note). The immunity level establishes a common reference for evaluating the performance of the apparatus when subject to interference resulting from direct exposure of the apparatus and associated cables to a radio frequency field, or by coupling of the interference from a remote source.If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators e.g. transponder systems) then the emission and immunity limits in this standard at the communication frequency do not apply.(...). The requirements and tests methods also apply to telecommunications and signalling data and power lines connected to the equipment under test (EUT). (...).For products in the scope of IEC 61000-3-2 or IEC 61000-3-3, the requirements of those standards apply.Testing methods are given in the basic standards listed in clause 2, normative references.NOTE The immunity and emission levels do not of themselves guarantee that the integration of apparatus, but the tests levels are sufficient to achieve satisfactory EMC in the majority of cases.

IEC 62236-5:2003 Railway applications - Electromagnetic compatibilityPart 5: Emission and immunity of fixed power supply installations and apparatus

IEC/TC 9

27


(…) applies to emission and immunity aspects of EMC for electrical and electronical apparatus and systems intended for use in railway fixed installations associated with 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.The limits in this standard do not apply to intentional communication signals.The frequency range covered is from d.c. to 400 GHz. At present, testing is defined only up to 2 GHz.Emission and immunity limits are given for items of apparatus which are situated:

c) within the boundary of a substation which delivers electric power to a railway;d) beside the track for the purpose of controlling or regulating the railway power supply, including power factor correction and filtering;e) 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;NOTE 1 Examples are one conductor of a 25-0-25 KV 50 Hz system and the 110 kV 16,7 Hz supply systems.

NOTE 2 Similar conductors which are outside the railway boundary are treated as in the public area and are considered to be general overhead power lines although they feed only the railway.

f) 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;

g) various other non-traction power supplies from railway sources which are shared with railway traction.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 should comply with the relevant generic International EMC Standard.

IEC/PAS 62267:2005 Railway applications – Automated Urban Guided Transport (AUGT) – Safety requirements

IEC/TC 9

28


(...) covers general high-level safety requirements for all types of automated urban guided transit systems with independent self-propelled trains operating on an exclusive guideway.This PAS deals with safety requirements needed to compensate for the absence of the driver or attendant staff who are typically responsible for the activities mentioned in Table 1. Table 1 describes the relationship between the grade of automation and basic system functions.The requirements are restricted to the transit system as defined in Clause 5 and to Driverless Train operation (DTO) and Unattended Train Operation (UTO) modes of operationas defined in 3.2 (see the shaded areas in Table 1)

(Table 1 – Grades of Automation)This PAS does not specifically look at security issues. However, aspects of safety requirements may apply to assuring security within the transit systems.NOTE The definition of “security” and “safety” are given in IEC 62278.The application of this PAS is subsidiary to the responsibility of the transport authority in accordance with its respective supervisory body and specific laws and decrees applicable to the transport system location.The application of this PAS must take account of

social risk acceptance in different cultures or different national legal regulations (for example, SHOREI, BOStrab) or principles (for example, GAME, ALARP, MEM);

laws and decrees in different states; special or different requirements coming from the authority having jurisdiction or from an independent assessor in

charge of the specific authority. The responsability for “safe operation” by the transport authority.

(...) does not apply to the following types of transportation systems, unless specifically required by the system owner Automated People Movers (APM) operating entirely inside a privileged environment such as an airport, a commercial centre, a leisure

resort; Amusement rides and roller-coasters, generally featuring a single station so that passengers board and alight the system at the same

location; Intercity and mainline train services, generally operating in a rural environment on part of their routes; Cable-driven systems; systems featuring electronically guided vehicles (with optical sensors, or magnetic sensors, or smilar devices/systems.

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IEC/PAS 62267:2005 (Cont.)Railway applications – Automated Urban Guided Transport (AUGT) – Safety requirements

IEC/TC 9

(Cont.)(...) is not concerned with the risk arising work for construction, installation, modification and dismantling of the system.(...) is not concerned with pre-existing DTO or UTO systems (for definitions, see 3.2) that were designed before this PAS took effect.In the case of upgrading an existing transit system to a DTO or UTO system, the risks associated with the existing system are outside the scope of this PAS. However, the risk assessment process described herein may be relevant, and its application is at the discretion of the safety authority having jurisdiction.In the case of extending or modifying an existing DTO or UTO system in operation, this PAS applies only if the change is significant as determined by the safety authority having jurisdiction; but the risks due to relantionship with the unchanged parts of existing systems ( rolling stock, traction power supply, signalling, platforms) shall be taken into account.

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IEC 62278:2002 Railway applications - Specification and demonstration of reliability, availability, maintainability and safety (RAMS)

IEC/TC 9

(…) - defines RAMS in terms of reliability, availability, maintainability and safety and their interaction;- defines a process, based on the system life cycle and tasks within it, for managing RAMS;- enables conflicts between RAMS elements to be controlled and managed effectively;- defines a systematic process for specifying requirements for RAMS and demonstrating that these requirements are achieved;- addresses railway specifics;- does not define RAMS targets, quantities, requirements or solutions for specific railway applications;- does not specify requirements for ensuring system security;- does not defines rules or processes pertaining to the certification of railway products against the requirements of this standard;- does not define an approval process by the safety regulatory authority.

(...) is applicable- to the specification and demonstration of RAMS for all railway applications and at all levels of such an application, as appropriate, from

complete railway routes to major systems within a railway route, and to individual and combined sub-systems and components within these major systems, including those containing software; in particular to new systems, to new systems integrated into existing in operationprior to the creation of this standard, although it is not generally

applicable to other aspectsof the existingsystem, to modifications of existing systems in operation prior to the creation of this standard; although it is not generally

applicable to other aspects of the existing system;- at all relevant phases of the life cycle of an application;- for use by Railway Authorities and railway support industry.

NOTE Guidance on the applicability is given in the requirements of this standard.

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IEC 62279:2002 Railway applications - Communications, signalling and processing systems - Software for railway control and protection systems

IEC/TC 9

(…) specifies procedures and technical requirements for the development of programmable electronic systems for use in railway control and protection applications. It is aimed at use in any area where there are safety implications. These may range from the very critical, such as safety signalling to the non-critical, such as management information systems. These systems may be implemented using dedicated microprocessors, programmable logic controllers, multiprocessor distributed systems, larger scale central processor systems or other architectures.(...) is applicable exclusively to software and the interaction between software and the system of which it is part.(...) Software safety integrity levels above zero are for use in systems in which the consequences of failure could include loss of life. Economic or environmental considerations, however, may also justify the use of higher software safety integrity levels.(...) applies to all software used in development and implementation of railway control and protection systems including

- application programming;- operating systems;- support tools;- firmware.

Application programming comprises high-level programming, low-level programming and special-purpose programming (for example, Programmable Logic Controller ladder logic).(...) The use of standard, commercially available software and tools is also addressed in this standard.(...) also addresses the requirements for systems configured by application data.(...) is not intended to address commercial issues. These should be addressed as an essential part of any contractual agreement. All the clauses of this standard will need careful consideration in any commercial situation.(...) is not intended to be retrospective. It therefore applies primarily to new developments and only applies in its entirety to existing systems if these are subjected to major modifications. For minor changes, only clause 16 applies.

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IEC 62280-1:2002 Railway applications - Communication, signalling and processing systemsPart 1: Safety-related communication in closed transmission systems

IEC/TC 9

(...) is applicable to safety-related electronic systems using a closed transmission system for communication purposes. It gives the basic requirements needed in order to achieve safety-related communication between safety-related equipment connected to the transmission system.(...) is applicable to the safety requirement specification and design of the communication system in order to obtain the assigned safety integrity level (SIL).The safety requirement specification is a precondition of the safety case of a safety-related electronic system for which the required evidence is defined in ENV 50129. Evidence of safety management and quality management has to be taken form ENV 50129. Evidence of functional and technical safety is the subject of this standard.(...) is not applicable to existing systems which had already been accepted prior to the release of this standard. However, as far as is reasonably practicable, this standard shall be applied to modifications and extensions to existing systems, subsystems and equipment.(...) applies to a closed transmission system with the following preconditions, for which evidence shall be provided:

- only approved access is permitted;- there is a Known maximum number of connectable participants;- the transmission media is known and fixed.

Closed transmission systems are not necessarily data buses. They can also includefor instance balise links or simple serial links between two safety-related computers.In particular this standard does not define

- the transmission system;- the equipment connected to the transmission system;- specific solutions (e.g. for interoperability);- which kinds of data are safety-related and which are not.

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IEC 62280-2:2002 Railway applications - Communication, signalling and processing systemsPart 2: Safety-related communication in open transmission systems

IEC/TC 9

(...) is applicable to safety-related electronic systems using an open transmission system for communication purposes. It gives the basic requirements needed, in order to achieve safety-related transmission between safety-related equipment connected to the open transmission system.(...) is applicable to the safety requirement specificationof the safety-related equipment, connected to the open transmission system, in order to obtain the allocated safety integrity level.The properties and behaviour of the open transmission system are only used for the definition of the performance, but not for safety.Therefore, from the safety point of view, the open transmission system can potentially have any property, as various transmission ways, storage of messages, unauthorized access, etc. The safety process shall only rely on properties , which are demonstrated in the safety case.The safety requirement specification is a precondition of the safety case of a safety-related electronic system for which the required evidence is defined in ENV 50129. Evidence of safety management and quality management has to be taken form ENV 50129. The communication related requirements for evidence of functionaland technical safety are the subject of this standard.(...) is not applicable to existing systems which had already been accepted prior to the release of this standard.(...) does not specify

- the open transmission system;- equipment connected to the open transmission system;- solutions (e.g. for interoperability);

- which kinds of data are safety-related and which are not.

IEC 62290-1:2006 Railway applications – Urban guided transport management and command/control systemsPart 1: System principles and fundamental concepts

IEC/TC 9

(...) provides an introduction to the standard and deals with the main concepts, the system definition, the principles and the main functions of UGTMS (Urban Guided Transport Management and Command/Control Systems).

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IEC 62425:2007 Railway applications – Communication, signalling and processing systems – Safety related electronic systems for signalling

IEC/TC 9

(...) is applicable to safety-related electronic systems (including sub-systems and equipment) for railway signalling applications.(...) is intended to apply to all safety-related railway signalling systems/ sub-systems /equipment. However, the hazard analysis and risk assessment processes defined in IEC62278 and this standard are necessary for all railway signalling systems/ sub-systems /equipment, in order to identify any safety requirements. If analysis reveals that no safety requirements exist (i.e.: that the situation is non-safety-related), and provided the conclusion is not revised as a consequence of later changes, this safety standard ceases to be applicable.(...) applies to the specification, design, construction, installation, acceptance, operation, maintenance and modification/extension phases of complete signalling systems, and also to individual sub-systems and equipment within the complete system. Annex C includes procedures relating to electronic hardware components.(...) applies to generic sub-systems and equipment (both application-independent and those intended for a particular class of application), and also to systems/ sub-systems /equipment for specific specifications.(...) is not applicable to existing systems/ sub-systems /equipment (i.e. those which had already been accepted prior to the creation of this standard). However, as far as reasonably practicable, this standard should be applied to modifications and extensions to existing systems, sub-systems and equipment.(...) is primarily applicable to systems/ sub-systems /equipment which have been specifically designed and manufactured for railway signalling applications. It should also be applied, as far as reasonably practicable, to general-purpose or industrial equipment (e.g.: power supplies, modems, etc.), which is procured for use as part of a safety-related signalling system. As a minimum, evidence shall be provided in such cases to demonstrate

- either that the equipment is not relied on for safety,- or that the equipment can be relied on for those functions which relate to safety.

(...) is applicable to the functional safety of railway signalling systems. It is not intended to deal with the occupational health and safety of personnel; this subject is covered by other standards.

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IEC 62427:2007 Railway applications – Compatibility between rolling stock and train detection systems

IEC/TC 9

(...) describes a procedure for mutual acceptance of rolling stock to run over specific routes. It describes the methods of measurement of interference currents, the methods of measurement of the susceptibility of train detection systems, the characterisation of traction power supplies and the procedure for acceptance. The result of the acceptance procedure is a structured justification document referred to as a “compatibility case”, which documents the evidence that the conditions for compatibility have been satisfied.The procedure is also applied to modifications of rolling stock, traction power supply or train detection systems which are considered to affect compatibility.The scope of the compatibility case is restricted to the demonstration of compatibility of rolling stock with a train detection system´s characteristics (e.g.gabarit). Train detection system in this standard refers only to a track circuit or those using wheel detector.

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en 12080:1998 - imt web viewthe nominal voltage of these circuits does not exceed 3 000 v d.c....

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