Sökning - 5 resultat för 'tk 254'

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 19 sep 2019
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This document specifies the minimum requirements for ergonomic and structural integrity of steps and handrails used together to give staff access to freight wagons. It does not cover ladders, top platforms and top gangways.

It defines in particular the required spaces necessary for shunter handrails, for shunter’s stand, for steps and handrails.

This document also defines their dimensions, positions, limits for durability and functionality.

It also defines the general requirements for the access to tail lights for freight wagons.

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 10 okt 2019
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This document defines the external front and rear visibility conditions for cabs of tram vehicles and the associated assessment method.

The requirements of this document apply to vehicles operating on tram networks.

This document does not apply to refurbishment of existing vehicles.

This document does not apply to driver's auxiliary cabs.

Ämnesområden: Räls och rälsdelar
Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: ISO
Svarsdatum: den 18 okt 2019
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This document specifies a laboratory test procedure for finding the effect of exposure to severe environmental conditions on the fastening system.

This test procedure applies to a complete fastening assembly including embedded rail with mechanical fastenings. It is not applicable to embedded rail systems relying on adhesive components to secure the rail.

Ämnesområden: Räls och rälsdelar
Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: ISO
Svarsdatum: den 18 okt 2019
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This document specifies a test procedure to confirm that the force necessary to pull the anchorage of a rail fastening assembly out of the sleeper or other supporting element is greater than a prescribed value (i.e. it is a 'proof load' test).

This test is for components of the fastening system which are:

a) cast into concrete during the manufacture of sleepers or other supporting elements;

b) glued into the cast or drilled holes in concrete; or

c) screwed or otherwise attached to wood, polymeric composite or steel sleepers or other supporting elements.

This test is not applicable to embedded rails.

Ämnesområden: Räls och rälsdelar
Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: ISO
Svarsdatum: den 18 okt 2019
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This standard specifies the laboratory test procedure to determine:

a) the maximum longitudinal force that can be applied to a rail, secured to a sleeper, bearer or element of slab track by a rail fastening assembly, without non-elastic displacement of the rail occurring, or the longitudinal stiffness at a specified longitudinal displacement of a specimen of embedded rail with an adhesive fastening system, and, for any type of fastening,

b) the shear displacement and slip data required for track-bridge interaction calculations.