Equipotential bonding of power cable trays

The equipotential bonding system is mounted on cable tray systems. All conductive system parts and electrical equipment are integrated in the Ex equipotential bonding by means of equipotential bonding plates and clamps as well as a closed ring equipotential bonding . In practice, however, conductive parts of the construction or cable tray system are often defined as “equipotential bonding conductors”. These do not guarantee the required safe, consistent and permanently effective electrical connection. Screws are secured against self-loosening according to DIN EN 62305-3 Supplement 2 by means of a spring washer. Electrical continuity provides safety to people and property, and plays an essential role in the EMC. [pdf]