Järnvägsteknik

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: ISO
Svarsdatum: den 3 nov 2021
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This document applies to railway driving simulators for driver training.
This document can be applicable for all Guided Transport systems, which cover Trains, Metros, Tramways and Light Rails, as part of public/private transport systems. These vehicles are intended for the operation of intercity, urban and suburban passenger or freight services with self-propelled systems and operated on either segregated or not segregated paths.
This document defines the minimum functions, and performances that should be considered to be integrated into a driver training simulator.
Annex A to E provide additional information.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 11 nov 2021
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This document applies to distributor valves and distributor-isolating devices.
The distributor valves contained in this document are of graduable release type. Direct release types are not included.
Functionally they are regarded as not containing relay valves of any type, even if the relay valves are physically an integral part of the distributor valves.
This document applies to both distributor-isolating devices mounted separate from the distributor valve and distributor-isolating devices integral with the distributor valve.
This document specifies the requirements for the design, testing and quality assurance of distributor valves and distributor-isolating devices.
The distributor valve and distributor-isolating device are intended to be part of a brake system mounted in a vehicle with maximum length of 31 m and maximum brake pipe volume of 25 l taking into consideration brake pipe inner diameters between 25 mm and 32 mm.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: ISO
Svarsdatum: den 29 nov 2021
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This document provides terms and definitions for common use in standards for brakes and braking in rolling stock.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 16 dec 2021
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This part of EN 45545 specifies the reaction to fire performance requirements for materials and products used on railway vehicles as defined in EN 45545-1.
The operation and design categories defined in EN 45545-1 are used to establish hazard levels that are used as the basis of a classification system.
For each hazard level, this part specifies the test methods, test conditions and reaction to fire performance requirements.
It is not within the scope of this European Standard to describe measures that ensure the preservation of the vehicles in the event of a fire.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 16 dec 2021
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This document specifies the functionality, position, constraints and control of a magnetic track brake system (MTB system) installed in bogies for use in emergency braking and in low adhesion conditions on Mainline Trains with speeds up to 280 km/h. It covers high suspension types of MTB only and not high/low and low suspension type of MTB.
This document also contains test methods and acceptance criteria for an MTB system. It identifies interfaces with electrical equipment, bogie, track and other brake systems.
On the basis of the existing international and national standards, additional requirements are defined for:
— conditions of application for the MTB system;
— retardation and brake forces;
— functional and design features;
— strength requirements;
— type, series and vehicle implementation tests.
For design and calculation a “reference surface” is established.