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Apply our regulations of entity in charge of maintenance

We can provide you with our regulations of entity in charge of maintenance for non-destructive testing of rolling stock and their components.

In all DB maintenance depots, NDT test centres exist that meet the requirements of
DIN 27201-7. The test centres are recognised by the inspection body of the non-destructive testing department of DB Systemtechnik GmbH in Brandenburg-Kirchmöser.
Our NDT test centres have extensive experience in NDT testing of all types of rolling stock and their components.


The NDT test centres use the following approved test methods, which are adapted to the product portfolio of the respective depot: visual testing (VT), magnetic particle testing (MT), penetration testing (PT), ultrasonic testing (UT), radiographic testing (RT) and eddy current testing (ET). The NDT test centres also meet the requirements of DIN EN 15085
(weld inspection in railway vehicle manufacturing).


We conduct mechanised tests as well as manual tests at our depots, especially in the area of wheelset inspection. Furthermore, our depots are equipped with state-of-the-art ultrasonic test equipment used to test solid shafts, shafts with a longitudinal bore and wheels. By using this equipment, defects can be detected more quickly and documented in accordance with legal requirements.

In accordance with DIN 27201-7, test instructions must be approved for non-destructive testing of safety-critical rolling stock components. The "entity in charge of maintenance" for a vehicle must provide the test instructions required for conducting the tests.


If the required instructions cannot be provided, we recommend you use in-house instructions. In this case, you as the customer can decide whether the test instructions are suitable for the case in question. If so, we will include their implementation in the contractual agreement.


We have our own NDT test instructions, which, based on the experience of our maintenance personnel, are required for testing different types of rolling stock. The test instructions are created and approved by an NDT certification agency in accordance with DIN 27201-7. This ensures that all work is carried in compliance with applicable standards.

Developing new non-destructive test methods for new areas of application is more important than ever. The use of fibre reinforced materials and adhesive bonds (e.g. screens) in the manufacture of railway vehicles is steadily increasing. So far, there is no practical solution for conducting non-destructive tests on these composites.


We have recognised the urgency of this matter and, as part of the DB Innovation Challenge, have decided to tackle this challenge. Together with creative minds from industry, science and start-up companies we have come up with a solution.

 

Our solution for fibre reinforced materials and adhesive bonds
The depots' concept is based on a test method that is already being used in a similar way in aviation and for wind turbine rotors. The test method was adapted to suit the fibre composite materials commonly used for rolling stock. The method reveals the position and dimension of hidden damage so that it can be systematically repaired.

 

Benefits for our customers
Thanks to this test method, downtimes caused by unforeseen and unnecessary repairs can be avoided, thus increasing vehicle availability. At the same time, the method reduces material consumption and improves the predictability of repairs. Thanks to our mobile test equipment, we can even conduct this new test method at your premises.


Definition:
Fibre composite materials are hybrid materials consisting of two or more laminated components. The special thing about these materials is that the interaction between the components results in properties that a single material cannot offer. An example of a fibre composite material is glass fibre reinforced plastic.