... oxide gapless type lightning arrester, polymer arrester insulator 1.brand: DCI 2. ISO9001,ISO14001 Surge arrester metal oxide gapless type lightning arrester, polymer arrester ... various electrical appliances in power system,rSurge Arrester insulator is a kind of overvoltage protector ... overvoltage etcComposite zinc oxide surge arresters, The silicone rubber replaces the original porcelain part and have ...