three jacket ADSS cable

The utility model relates to the technical field of optical cables, a three-layer sheathed central tube optical cable with FRP on four sides, comprising a colored optical fiber, a water-blocking tape, a low-smoke zero-halogen outer sheath, an FRP reinforcement, and a nylon outer sheath. The utility model is characterized in that a loose tube is provided outside the colored optical fiber, a water-blocking tape is provided outside the loose tube, an aramid yarn is provided outside the water-blocking tape, a low-smoke zero-halogen inner sheath is provided outside the aramid yarn, a glass fiber yarn is provided outside the low-smoke zero-halogen inner sheath, a low-smoke zero-halogen outer sheath is provided outside the glass fiber yarn, a nylon outer sheath is provided outside the low-smoke zero-halogen outer sheath, a fiber-reinforced plastic round rod reinforcement is embedded in the nylon outer sheath, the fiber-reinforced plastic round rod reinforcement is parallel to the axis of the loose tube, and the fiber-reinforced plastic round rod reinforcement is evenly and symmetrically distributed on the circumferential cross section. The utility model has reasonable design, simple structure, easy manufacturing, light weight, anti-lateral pressure, anti-stretching and anti-rat and ant performance, good flame retardant performance and mechanical performance, long service life, and is suitable for various laying methods.