Fire resistance of fire barriers according to EN 45545-3 (E45/EI30)

The European railway standard for fire safety EN 45545-3 regulates the fire resistance of fire barriers. The requirements and measures defined in this part of the standard aim to protect passengers and staff in trains against onboard fire incidents. Fire resistance of fire barriers meet the classifications EN 45545-3 E45 and EI30.

EN 45545-3 Fire barriers can have different standards:

The lowest standard “E”
Barrier against flames, preventing fissure formation. "E45", for example, means that the specimen can withstand the test for 45 minutes.

The highest standard “EI”
Barrier against flames, preventing fissure formation and thermal insulation, which means that the temperature on the side facing away from the fire must not exceed 392° F (180°C above room temperature). "EI30", for example, means that the specimen can withstand the test for 30 minutes. 

EN 45545 European standards Railway applications — Fire protection on railway vehicles consists of:
EN 45545-1: General;
EN 45545-2: Requirements for fire behaviour of materials and components;
EN 45545-3: Fire resistance requirements for fire barriers;
EN 45545-4: Fire safety requirements for railway rolling stock design;
EN 45545-5: Fire safety requirements for electrical equipment including that of trolley buses, track guided
buses and magnetic levitation vehicles;
EN 45545-6: Fire control and management systems;
EN 45545-7: Fire safety requirements for flammable liquid and flammable gas installations

EN 45545-3 Normative references
EN 1363-1 Fire resistance tests-Part 1: General requirements
EN 1364-1 Fire resistance tests for non-loadbearing elements-Part 1: Walls
EN 1364-2 Fire resistance tests for non-loadbearing elements-Part 2: Ceilings
EN 1634-1 Fire resistance and smoke control tests for door, shutter and openable window assemblies and
elements of building hardware-Part 1: Fire resistance tests for doors, shutters and openable windows
EN 13501-2 Fire classification of construction products and building elements-Part 2: Classification
using data from fire resistance tests, excluding ventilation services
EN 45545-1 Railway applications-Fire protection on railway vehicles-Part 1: General
EN 45545-5 Railway applications-Fire protection on railway vehicles-Part 5: Fire safety requirements
for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles
EN ISO 1182 Reaction to fire tests for products-Non-combustibility test (ISO 1182)
EN ISO 1716 Reaction to fire tests for products-Determination of the gross heat of combustion (calorific
value) (ISO 1716)
ISO 834-1 Fire-resistance tests — Elements of building construction — Part 1: General requirements

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