1. Zno lighting arrester is a kind of world advanced over-voltage protector at present, due to its core components of resistance applying Zno and other metal oxide to make of, comparing with traditional carborundum arrester, it improves greatly V-A characteristics of resistance increases the getting trough ability of resistance, thereby it brings fundamental change to features of arrester.
2. Under normal working voltage, the current passing through the arrester only is uA class, when bearing over voltage, the execellent non-linear V-A features of arrester would make effect, the current passing through the arrester increase high to th-ousands of Ampere instant, the arrester is under getting through state, to relesae over-voltage energy, therfore it effective limits the damage to power transmis-sion equipments due to over Voltage.
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