Zinc oxide arrester test standards

1. The characteristic of zinc oxide arrester is that there is no gap in series, so when working in the power grid system, the current will directly pass through the zinc oxide arrester body. Under the action of electric current, the zinc oxide arrester will continue to generate heat. In the long run, the result will be that the valve plate of the zinc oxide arrester will age until it is scrapped. Therefore, it is necessary to conduct a test in advance to ensure that the current passes through the upper load limit.
2. Since the zinc oxide arrester itself is used as a conductive device, if it is exposed to moisture, it will cause problems with the overall insulation performance. Such problems will not only increase current demand and increase power consumption, but may even cause internal discharge. The overall zinc oxide arrester loses its original required effect. Therefore, it is necessary to test the moisture resistance.
3. Zinc oxide arresters are generally installed under high-voltage power grid systems, so the voltage they receive is very strong. Under long-term voltage shock, the valve plates of zinc oxide arresters may also be heated like current, and then age. Therefore, the upper limit test of voltage is also necessary.