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Kommittébeteckning: SIS/TK 203 (Eurokoder)
Källa: CEN
Svarsdatum: den 14 nov 2021
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1.1 Scope of prEN 1991-1-2
(1) The methods given in this Eurocode are applicable to buildings and civil engineering works, with a fire load related to the building and its occupancy.
(2) prEN 1991-1-2 deals with thermal and mechanical actions on structures exposed to fire. It is intended to be used in conjunction with the fire design Parts of EN 1992 to EN 1996 and EN 1999 which give rules for designing structures for fire resistance.
(3) prEN 1991-1-2 contains thermal actions either nominal or physically based. More data and models for physically based thermal actions are given in annexes.
(4) prEN 1991-1-2 does not cover the assessment of the damage of a structure after a fire.
(5) prEN 1991-1-2 does not cover supplementary requirements concerning, for example:
— the possible installation and maintenance of sprinkler systems;
— conditions on occupancy of building or fire compartment;
— the use of approved insulation and coating materials, including their maintenance.
1.2 Assumptions
(1) In addition to the general assumptions of prEN 1990 the following assumptions apply:
— any active and passive fire protection systems taken into account in the design will be adequately maintained;
— the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation.

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.