Cable tests are generally performed to determine the suitability, quality and functionality of the cables. Often, a cable malfunction can be seen before it becomes a real problem.

Therefore, visually inspecting all cables in cable tests is an effective way to find and solve the problem before a fault occurs. Corrosion of copper wires, cracks in insulation, moisture in cables and many other damages are indications of a future failure.

However, conducting cable tests in order to ensure that the cables and connections are in good condition and to quickly detect cable failures avoids future high costs. Cable problems are a vital concern for everyone involved with electricity. Various test methods and test equipment are used in these tests.

In general, cable tests include conductive resistance test, high voltage test, insulation resistance test, diameter measurement, tensile test, winding test, persulphate test and annealing test. In addition, the main physical tests applied to cables are: breakage, tensile strength and elongation test, aging tests, temperature test, tear resistance test, insulation resistance test, high tension test, flammability test and continuity test.

Here are a few standards that are based on cable testing by competent authorities:

• TS EN 60885 Cables - Test methods

• TS EN 60332 Cables - Tests in electrical and fiber optic cables under fire conditions

• TS EN 60754 cables - Test for gases released during combustion of electrical cables

• TS EN 60811-403 Electrical and fiber optic cables - Test methods for non-metallic materials - Part 403: Miscellaneous tests - Ozone resistance testing of cross-linked compounds (IEC 60811-403: 2012)

• TS EN 50565 Electric cables - Guidelines for the use of cables whose rated voltage does not exceed 450 / 750 V (U0 / U)