During the production activities of the companies, various tests are carried out to determine the quality of the panels and cables and then for the maintenance operations during use. Special test devices are used for this purpose. These devices are automatic test devices used to test and verify electrical connections on a panel or anywhere installed.

With these devices, it is checked that the cable is laid in accordance with the design, in accordance with the plans and of the expected quality. In general, three basic points are identified with these devices: the suitability of the cables, the quality of the cabling and the functionality of the cables.

Under normal conditions, all electrical current delivered through a conductive cable reaches its destination. But sometimes for a variety of reasons, some current disappears along the way. The cables are insulated with a resistant sheath, which typically uses the conductivity of the copper or aluminum core.

However, even if this insulation is in place, a fault in the insulation may still cause the current to escape. This will damage electrical circuits and machines. The purpose of the tests to determine the panel and cable test quality is to determine whether the insulation performs at an effective and safe level.

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

• TS EN 60332 Electrical and optical fiber cable tests at risk of fire

• TS EN 61034 Measurement of smoke density of burning cables under specified conditions

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

• TS 7321 EN 60885 Cables - Electrical test methods

• 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)