Compliant with international standards including IEC 60794-1 and YD/T 901-2018, GYFTY's unique structure—featuring a fiber-reinforced plastic (FRP) central strength member, loose-tube design, and full-section water-blocking—delivers reliable performance for aerial, duct, and. Compliant with international standards including IEC 60794-1 and YD/T 901-2018, GYFTY's unique structure—featuring a fiber-reinforced plastic (FRP) central strength member, loose-tube design, and full-section water-blocking—delivers reliable performance for aerial, duct, and. GYFTY fiber optic cable, a premium all-dielectric (non-metallic) outdoor solution, is engineered to excel in high-lightning, high-electromagnetic interference (EMI) environments where traditional metallic-reinforced cables pose risks. It features a loose‑tube design with multiple singlemode or multimode fibers protected by water‑blocking. Outdoor FRP Aerial Fiber Optic Cable (GYFTY) For Duct And Aerial GYFTY fiber optic wire is an non-metallic cable used in power transmission system and high electromagnetic interface. It's a perfect fiber optic cable for lighting protection effect with all-dielectric materials. The tubes are filled with a water-resistant filling compound. A metallic or Fiber Reinforced Plastic (FRP) locates in the center of core as a strength member.