arrester

A surge arrester is a crucial protective device designed to safeguard electrical equipment by diverting excessive voltage and safely discharging surge currents. It prevents sustained follow-current to the ground and is engineered for repeated performance in accordance with ANSI C62.11 standards. Unlike common misconceptions, a surge arrester does not absorb or eliminate lightning; rather, it redirects high-voltage surges, limits potential damage, and ensures the continued safety of connected systems.

Surge arresters are widely used across various electrical infrastructures, from residential circuits to large-scale utility substations. They can be found in circuit breakers within homes, inside pad-mounted transformers, on pole-mounted transformers, as well as on riser poles and high-voltage substations, effectively mitigating the risks associated with power surges.