... ground wire 3. lightning protection 4.ISO 9001:2008 OPGW central tube 24 core optic cable ♣ Application ... Lighting protection and conduct the short circuit current.3. Optical fiber communication ability ♣ Charateristics 1 ... wire's requirement of mechanical and electric by adjusting proportion of steel and aluminium ... GYTS,GYFTY,GYXTY,GYXTW, GYXTA, GYXTS, POWER CABLE, ECT.Besides, we can do the products ...