Mechanical fatigue test
This involves a specific test for dropper wires to simulate the long-term fatigue of the wire resulting from railway traffic over time. The standard typically requires a cable to resist a minimum of 2 million cycles. The test simulates a typical movement of a dropper wire in realistic conditions.
Apart from being typically carried out on catenary wires, this test is suited for a variety of wires and cables. Typical standards are NFC 34 110-2/EN 50119 or customer specific requirements for speciality wires.