EMC – Electromagnetic compatibility

Electromagnetic compatibility (EMC) is crucial for the proper functioning of electrical equipment in an electromagnetic environment. This EMC refers to how well an electrical device is able to function in such an environment without unacceptably interfering with other devices. It is important to recognise that any electrical device must be considered as both a potential source of interference and a receiver of interference. Interference is transmitted by coupling, with the line itself often acting as the primary source of interference.

Electromagnetic interference must be minimised to ensure the trouble-free operation of radio and telecommunications equipment. This enables these devices to operate as intended. Suitable cable designs can usually effectively minimise or shield interference signals so that no negative effects are to be expected. The optical coverage of the shielding plays an important role here, whereby optimum shielding is often achieved with a combination of braiding and aluminium or copper foil.

It is also advisable to always lay data lines electromagnetically separated and not parallel to interfering power lines. The greatest possible distance between these lines reduces the risk of interference and contributes to EMC. These measures can improve electromagnetic compatibility and ensure the reliable functioning of electrical systems.