A transient voltage surge suppressor (TVSS) installed in a metal enclosure must be bonded to which part of the enclosure?

A transient voltage surge suppressor (TVSS) is an essential component in protecting electrical systems from voltage spikes. When it is installed within a metal enclosure, proper bonding is crucial to ensure that any surges are effectively redirected to ground, thereby safeguarding equipment and preventing damage.

Bonding a TVSS to both ends of the enclosure enhances the system’s grounding effectiveness by providing multiple paths for electrical surges. This dual connection minimizes the resistance along the path to ground, which helps to efficiently dissipate excess voltage away from sensitive components of the electrical system. By ensuring that both ends are bonded, you create redundancy and increase the reliability of the surge protection system.

Effective bonding also adheres to safety standards and practices, ensuring that the entire enclosure is at the same potential and mitigating the risk of shock to personnel working near or with the equipment. This comprehensive bonding approach is particularly important in residential wiring, where safety and protection from transient events are paramount.