Glow cables are used for pre- and post-heating of large diameters or surfaces, e.g. around welding processes. The connection is made using the cable box to which up to 8 cables can be connected. This box is connected to the actual generator. Depending on the application, air-cooled cables with a length of up to 30 m can be used. They can be used for stationary or mobile applications at process temperatures up to 500 °C.