... oxide gapless type lightning arrester, polymer arrester insulator 1.brand: DCI 2. ISO9001,ISO14001 Surge arrester metal oxide gapless type lightning arrester, polymer arrester insulator1.brand: ... of various electrical appliances in power system,rSurge Arrester insulator is a kind of overvoltage protector ... usually red,gray and white.3 we can design and produce according to the drawings and ...