EN 12642 XL
The European Standard DIN EN 12642 describes the minimum requirements for the strength of vehicle bodies. It applies to all structural elements (side walls, front and back walls) of trucks and trailers with a maximum permitted gross vehicle weight exceeding 3.500 kg.
Testing of a trailer for compliance to the normal (Code: L) and reinforced structures (code: XL, higher test loads), can be performed by static or dynamic tests. Vehicles, whose structure has been approved for the EN 12642 XL regulation, require less or no additional lashing of their loads. This simplifies the loading and unloading process, saving time and therefore providing an economic benefit for the operator.
To statically test a trailers’ body for compliance to the EN 12642 XL regulation, following test loads (absolute values) are required for the determination of the structure firmness with a payload of 27.000 kg:
|DC 9.5||EN 12642 L||EN 12642 XL|
|Front wall (0,5 x payload)||13.500 daN||5.000 daN||13.500 daN|
|Side wall (0,4 x payload)||8.100 daN||8.100 daN||10.800 daN|
|Rear wall (0,3 x payload)||8.100 daN||3.100 daN||8.100 daN|
To perform a static test, a wall needs to be installed in the trailer. A balloon is then inflated between the wall and the side-curtain, to simulate a lateral pressure of 10.800 kg.
A dynamic test is performed by driving with a fully loaded trailer on an airfield. The EN 12642 XL regulation stipulates that 2 different driving tests are to be performed 3 times one after another. For the test to succeed, the trailers’ body structure must remain fully functional in all aspects once all driving tests are finished. During these tests, following forces are to be obtained at each driving test:
- Deceleration of 0.8 g in the driving direction
- Lateral acceleration of 0.5 g
- Lane change test with 0.5 g
- Backward acceleration of 0.5
Following videos show how these tests are performed with a trailer loaded with 27.000 kg of beverages and with a CARAPAX roof curtain installed on the sliding roof.