EN 283-1991 pdf download.Swap bodies-Testing.
In the case of swap bodies of identical construction (series production) it is acceptable for a single unit to undergo all the following tests, provided that the inspecting authority required to give type approval is satisfied that the other swap bodies have technical characteristics at least equivalent to those of the swap body tested.
Any proposal to alter plans or manufacturing procedures shall be submitted to the inspecting authority in advance who will decide whether to repeat the whole or part of the tests.
The swap body under test shall be considered as being approved, provided that the following conditions are met:
Upon completion of any of the following tests the swap body shall show neither permanent deformation which will render it unsuitable for use nor abnormality which will render it unsuitable for use, and the dimensional requirements affecting handling, securing and interchange shall be satisfied.
This approval will extend to all identical series produced, swap bodies subject to any production tests as required by the inspection authority.
4.2 Unless otherwise stated, swap bodies shall be capable of withstanding the tests specified in 5.1 to 5.10 inclusive, as applicable. Swap bodies shall be tested in the condition in which they are designed to be operated. Also. swap bodies equipped with removable structural items shall be tested with these items in position. It is recommended that the test for weatherproofness (see 5.9) be carried out last.
4.3 Supporting legs shall also be tested separately,
see 5.11.
4.4 The risk of overturning of an empty swap body
standing on its supporting legs shall be determined
according to Annex B.
5 Testing
5.1 Transportation strength
NOTE This test shall be carried out to prove the ability of the base structure of a swap body to withstand the vertical forces under dynamic conditions encountered in railway operations.
5.1.1 Swap bodies transported without centre supports
The swap body uniformly loaded to 1,5 R shall he placed on four level pads, one under each bottom fitting. The pads shall be centralized under the fittings and shall be substantially of the same plan dimensions as the fittings. The swap body shall he free to deflect. The swap body shall be supported for at least 5 minutes.
The test procedure for swap bodies of class A designed for transportation without centre supports shall be the same as required above except that in this case the combined mass of swap body and test load shall be 2 R.
5.1.2 Swap bodies of class A designed for transportation with centre supports
The test procedure described in 5.1.1 with 1,5 R shall be applied. In an additional 2nd test, level pads shall be placed under each intermediate support (load transfer zone). The max. force measured on the intermediate supports on each side of the swap body shall not exceed 75 kN during the entire test period.
5.2 Lifting from the slinging apertures This test shall be carried out to prove the ability of a swap body to withstand being lifted from its side bottom apertures. The swap body uniformly loaded to 1,5 R shall be lifted from all four side bottom apertures in such a way that no significant accelerations or decelerations are applied. The lifting forces shall be applied approximately vertically. The lifting device shall not exert any pressure on the side walls of the swap body. The line of action of the lifting force shall he applied 38 mm clear of the outer face of the side wall of the swap body.
The swap body shall remain lifted for 5 minutes. If bottom fittings of swap bodies of class A and B are equipped with side apertures and these apertures are not subjected to the above test, they shall be blanked off.EN 283-1991 pdf download.

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