DIN 5510-2 is about the flame retardant requirements for raw materials and accessories used in railway vehicles. The required indicators include combustion characteristics and combustion boundary effects (smoke formation and droplet state) smoke toxicity. The standard specifies the combustion characteristic level、 smoke impact level、 droplet state level、 and toxicity index of materials or components. The requirements for electrical fire prevention are standardized、 which is a relatively scientific and systematic flame retardant regulation and is widely used in practice. Test wires and cables (EN 60332-1-2、 EN 50266-2-4/5、 EN 61034、 EN 50305)

Scope of Application

This standard applies to railway vehicles、 which fall within the effective scope of the Railway Construction and Operation Regulations (EBO)、 Narrow Gauge Railway Construction and Operation Regulations (ESBO)、 Maglev Railway Construction and Operation Regulations (MbBO)、 and Tram Construction and Operation Regulations (BOSstrab)

This standard has established the following objectives:

- Classification of combustion characteristics and combustion concurrent phenomena、

- Necessary testing methods for this

- Necessary requirements for the combustion characteristics and combustion concurrent phenomena of materials and components used in the manufacturing of vehicles to prevent fires.

Standard Overview

In order to classify the combustion characteristics and combustion concurrent phenomena (smoke formation、 droplet characteristics) of materials and components、 flammability、 smoke and droplet levels were generated、 and toxicity indices were determined in the form of allowable exposure time.

DIN 5510-2 German locomotive fire test mainly focuses on the following aspects:

1. Combustion level test

(1) S1 combustion level test - (handles、 handrails、 etc.) Small components

Test method: DIN 53438-1、 DIN 53438-2、 DIN 53438-3

Level evaluation: Measure from the point of flame strike of the spray lamp、 and the flame peak formed on small components should not exceed 15cm.

(2) S2-S5 combustion level test - non ground materials

Test method: DIN 54837- Materials and components for railway vehicles - Combustion characteristics test method

Level evaluation: S2-S5 (S2: failure length ≤ 30cm; S3: failure length ≤ 25cm and post combustion time ≤ 100s; S3: failure length ≤ 20cm and post combustion time ≤ 10s; S5: failure length=0cm and post combustion time=0s)

Test method: DIN EN ISO 9239-1 or DIN 4102-14

Level evaluation: SF1 SF3

Combustion level SF1 SF2 SF3

Critical heat radiation ≥ 2.5KW/m2 ≥ 2.5KW/m2 ≥ 4.5KW/m2

No requirement for light attenuation integral ≤ 2500 (% * min) ≤ 750 (% * min)

(4) Seat combustion level test

Test method: DIN EN 120 1-1 and DIN EN 1201-2

(5) Fire rating test for electronic components

Test method: DIN EN ISO 4589-2 or DIN EN 60695-11-10

Level evaluation: Oxygen index OI ≥ 28% or 30%

(6) Wire and cable combustion level test

Test method: DIN EN 60332-1-2 single cable vertical flame combustion test

DIN EN 50266-2-4/DIN EN 50266-2-4 multiple bundle vertical flame combustion test

DIN EN 61034-1/DIN EN 61034-2 smoke density test

DIN EN 50305 cable toxicity test

2. Smoke development level test:

If the combustion level is S2-S5 during the combustion test、 Further testing is required for the development level of cigarettes

Test method: DIN 54837

Level evaluation: SR1 not reached、 SR1、 SR2

SR1 not reached:>100 (% * min); SR1: ≤ 100 (% * min); SR2: ≤ 50 (% * min)

3. Droplet level test:

When conducting tests according to DIN 54837、 it is necessary to confirm whether the material will experience droplet drop phenomenon

Test method: DIN 54837

Grade evaluation: ST1-ST2

ST1: Production of molten droplets、 ST2: Average residual flame time when no molten droplets are generated or there are droplets during combustion does not exceed 20s

4. Toxicity test

Test method: DIN EN ISO 5659-2

Grade evaluation: FED (tzul)<1

Main test items and standards

Flammability classification: S1-S5、

Development classification of smoke: SR1-SR2

Classification of smoke droplets: ST1-ST2

Smoke toxicity test: EN 5659-2

Multiple vertical flame combustion of wires and cables: DIN 50266-2-4/DIN50266-2-5

Multiple vertical flame combustion of wires and cables: DIN EN 60332-2-24/DIN EN 60332-2-25

Smoke concentration of wires and cables: DIN EN 61034-2

Single vertical flame combustion of wires and cables: DIN EN 60332-1-2

Toxicity test for wires and cables: DI N EN 50305

DIN 5510-2 Main Test Standards for Fire Protection of German Locomotives:

DIN 5510-1 Railway Vehicles: Prevention of Combustion、 Degree of Combustion Protection、 Technical Measures and Instructions for Combustion Protection

DIN 5510-2 Railway Vehicles: Classification、 Requirements and Test Methods

DIN 5510-4 Railway Vehicles: Prevention of Combustion: Vehicle Structural Design; Safety technical requirements

DIN 53438-1 Combustible material testing - Combustion characteristics of burners; General parameters

DIN 53438-2 Combustible material test - Combustion characteristics of the burner - Edge combustion

DIN 53438-3 Combustible material test - Combustion characteristics of the burner - Plane combustion

DIN 54332 fabric test - Determination of fabric combustion characteristics

DIN 54333-1 fabric test - Determination of combustion characteristics; Horizontal method; Edge Burning

DIN 54341 Railway Vehicle Seat Test - Determination of Burning Characteristics with Paper Mats

DIN 54837 Railway Vehicle Materials and Small Components Test - Determination of Burning Characteristics of Gas Burners

ISO 9239-1 Floor Fire Performance Test - Part 1: Testing of Burning Performance of Radiated Heat Sources

EN 5659-2 Smoke Density and Toxicity Test

DIN EN 50266-2-4 Wire and Cable Multiple Bundled Vertical Burning Test (Cable Diameter ≥ 12mm)

DIN EN 50266-2-5 Wire and Cable Multiple Bundle Vertical Combustion Test (Cable Diameter<12mm)

DIN EN 61034-2 Wire and Cable Smoke Density Test

DIN EN 60332-1-2 Wire and Cable Single Vertical Flame Combustion

DIN EN 60332-3-24 Wire and Cable Multiple Bundle Vertical Flame Combustion Test

DIN EN 60332-3-25 Wire and Cable Multiple Bundle Vertical Flame Combustion Test

DIN 66082 Fabric Product Combustion Characteristics - Curtain and Curtain Materials

DIN 66084 Sleeper Cushion Composite Material Combustion Characteristics Measurement

BOStab Tram Construction and Operation Regulations

EBO Railway Construction and Operation Regulations

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

inspection and testing process:

1. Telephone communication and confirmation of requirements

Testing and testing characteristics:

1. The testing industry is fully covered、 meeting different testing needs

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing、 with no testing fees charged

5. Self service order delivery for free on-site sampling