What is the purpose of a bonding jumper in metal cable trays?

The purpose of a bonding jumper in metal cable trays is to make electrical connections between trays. This is crucial because it ensures that all metal components of the cable tray system are at the same electrical potential. By bonding the trays together, the risk of electrical shock or equipment damage due to potential differences is minimized. Moreover, this practice helps to provide a continuous path for grounding conductors, which is essential for the safety and reliability of electrical systems.

In the context of cable management, proper bonding also aids in reducing electromagnetic interference (EMI), which can be critical in sensitive electronic environments. Therefore, the establishment of an effective electrical connection through bonding jumpers is vital for maintaining both safety and performance within a metal cable tray system.