Surge Arrester is a device to protect electrical equipment from over-voltage transients caused by external (lightning) or internal (switching) events.
Due to their very high mechanical stability, polymer arresters from YongDe are best suitable for applications up to 550 kV networks as well as for areas with high seismic activity. Even after an arrester failure our polymer arresters will maintain more than 75% of their mechanical stability.
Our arresters with silicone housing are available for applications up to 550 kV !