The definition of the requirements for the burning behavior electrical products and cables for locomotives and cars to cover part of the protection objective 2 (see notes to DIN 5510-1) is geared to the requirements of current VDE-regulations and the current technical condition of railway vehicles.
DIN5510-2 Fire test to cable－Standard：
DIN5510-2 : Preventive fire protection in railway vehicles; Part 2: Fire behaviour and fire side effects of materials and parts, classification, requirement and test methods.
DIN5510-2 Fire test to cable－Brief：
The requirements for the requirements in terms of flammability, smoke development classes, Dripping and toxicity indicators take the form of allowable exposure lives here risk-based approach to classification of the vehicles on fire protection levels (see DIN 5510-1) and on mounting position of the materials and components in the vehicles (the ceiling area as critical floor area).
DIN5510-2Fire test to cable－Test Method & Requirement：
Test method：
- DIN EN 60332-1-2: Burning behaviour of Single Cable
- DIN EN 50266-2-4: Burning behaviour of Bunch Cable
- DIN EN 61034-2: Test for Smoke Density
- DIN EN 50305 9.2: Test for Toxicity
DIN 5510-2 fire test to cable - Requirement
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No.
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requiring proof
vehicle parts |
Fire Level
|
Demand
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Requirement
|
|
1
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Cable and Wire including data lines (Fiber optic cable,data bus, coaxial cable)
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1-4
|
DIN EN 60332-1-2
(VDE 0482-332-1-2)
|
When insulated wires and cables, the test is passed,if the distance between the lower end of the upper mounting and the start of charring more is over 50 mm. The flame expands by more than 540 mm from the bottom of the upper attachment to below, this must be called an error. Shall one failure recorded, two further tests perform. If both tests are passed, then the examination of individual wire or cable as passed.
|
|
2
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Cables and wires (without Data lines)
|
2-4
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DIN EN 50266-2-4
(VDE 0482-266-2-4)
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for cable diameter ≥ 12 mm; Category C. At the end of the test, the maximum distance of charred part measured and evaluated at the sample of the lower edge of the burner, on both sides of the Have not reached the head height of 2.5 meters.
|
|
DIN EN 50266-2-5
(VDE 0482-266-2-5)
|
for cable diameter> 6 mm and <12 mm; Category D. At the end of the test, the maximum distance of charred part measured and evaluated at the sample of the lower edge of the burner, on both sides of the Have not reached the head height of 2.5 meters.
|
|||
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DIN EN 50266-2-5
(VDE 0482-266-2-5)
|
for cable diameter ≤ 6 mm; Category D. Assignment to DIN EN 50306-1 (VDE 0260-306-1) :2003-05, 8.2.3 or DIN EN 50264-1 (VDE 0260-264-1) :2003-06, 8.2.3. At the end of the test, the greatest distance of the charred Part measured at the sample and evaluated by the lower edge of the burner, on both sides of the ladder have not reached the height of 1.5 meters.
|
|||
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Cable and Wire including data lines (Fiber optic cable,data bus, coaxial cable)
|
2-4
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DIN EN 61034-1
(VDE 0482-1034-1)
|
The value of light transmission allowed within the first 20 min not less than 60%.
|
Toxicity test for cable：
The toxicity of the constituent elements of cables and wires will be in accordance with DIN EN 50305 (VDE 0260-305): 2003-03, 9.2, determined. For cable, the evidence the requirements of DIN EN 50264-1 (VDE 0260-264-1) or comply with DIN EN 50306-1 (VDE 0260-306-1) and conform to DIN EN 50305 (VDE 0260-305) tested were described in C.2.3.3 test is not required but can be used alternatively; ie the smoke toxicity of cables can also carry the test according to DIN EN 50266-2-4 (VDE 0482-266-2-4) DIN EN 50266-2-5 or determined (VDE 0482-266-2-5).
DIN5510-2Fire test to cable－Reference Standard
> DIN EN 50264-1: Railway applications - Railway rolling stock cables having special fire performance; Standard wall - Part 1: General requirements
> DIN EN 50266-2-4 Common Test Methods for Cables under Fire Conditions - Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables Part 2-4: procedures – Category C
> DIN EN 50266-2-5 Common Test Methods for Cables under Fire Conditions - Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables Part 2-5: procedures – Category D
> DIN EN 50305: Railway applications. Railway rolling stock cables having special fire performance. Test methods
> DIN EN 50306-1: Railway applications - Railway rolling stock cables having special fire performances - Thin wall - Part 1: General requirements
> DIN EN 60332-1-2: Tests on electric and optical fibre cables under fire conditions Part 1-2: Test for vertical flame propagation for a single insulated wire or cable Procedure for 1 kW pre-mixed flame
> DIN EN 60332-2-2 Tests on electric and optical fibre cables under fire conditions Part 2-2: Test for vertical flame propagation for a single small insulated wire or cable Procedure for diffusion flame;
> DIN EN 61034-1: Measurement of smoke density of cables burning under defined conditions Part 1: Test apparatus.
For more detailed information about DIN 5510-2 fire test to cable