● Main principle
   Zno lighting arrester is one of the most advanced over-voltage protector at present in the world. Due to its core components of resistance applying zno and other metal oxide to make of ,compairing with traditional carborundum arrester, it improves V-A characterisitcs of resistance greatly, increases the getting though ability of resistance ,thereby it brings fundamental chage to features of arrester.
   Under normal working voltage,the current passing arrester is only uA class ,when bearing over-voltage, the excellent non-linear V-A features of arrester could make effect,the current passing through the arrester increase high to thousands of Ampere instant,the arrester of arrester wouldmake effect,to release over-voltage energy ,therefore it effective limits the damage to power transmission equipments due to over voltage.

●Usage &Feature
   Zno lighting arrester is one kind protecting equipment preventing electuic equipment In AC power system from high voltage and over -voltage operation.

●Technology standard
   《Metal oxide surge arresters without gaps for AC system》,《Metal oxide surge arrester polymeric housed without gaps for AC system》
● Rroduct Feature
   Small volumn ,light weight ,the whole packing pressure technique,good sealing ,wet proof, and explosion proof it is easy to installaton.
   Long leakage distance,good water proof,fine anti-pollution,light leakage current, anti-aging, it has a long life.
   It's rated D.C voltage,square wave impulse current withstand and high current impulse is higher than the national standard.
● Notice
   The Arrester should be put in the cleaning and drying room befor they are installed avoiding the corrosive gas and liquid.
   Before used, the arrester should be tested. After used it should be tested regularly,take the follow test and compare the date before
    a) insulate resistance
    b) votage in DC 1mA
    c) Leakge current(0.75×mA)
●Service condition
    Power freguency: 48HZ-62HZ
    Anbient temperature: -40℃-+50℃
    Wind speed:≤35m/s
    Altitude:≤2000m
    EarthguaRe:no more than seven grade
    EarthguuRe:no more than seven grade
    It can not operate long time in a voltage which over the contineous operation voltage
   Yadius of sun:
   We have taken into account the affection of sun shine(1.1≤kw/mm2)
   If there is other heat source near the Arrester ,its use should be discussed
●Arrestor discomector
   Arrestor discomector is a device for disconnecting an arrestor from the system in the event of arrestor failure, to prevent a persistent fault on the systm and to give visible indication of the failed arrestor. TL-1 is a thermal explode disconector.
our products as per IEC60099-4.Standard.