Overhead ribbon cable, manufacturing method and manufacturing system for overhead ribbon cable

An overhead ribbon cable, comprising an optical fiber ribbon array, wherein the optical fiber ribbon array comprises a plurality of optical fiber ribbons arranged in an array, a surface of the optical fiber ribbon array being wrapped sequentially with a water-blocking assembly and an outer protection layer in an axial direction of the optical fiber ribbon array, the water-blocking assembly comprising a water-blocking sealing layer formed by heating and curing a sealant, and the water-blocking sealing layer wrapping the surface of the optical fiber ribbon array in the axial direction of the optical fiber ribbon array and filling a gap between two adjacent optical fiber ribbons;

• wherein the water-blocking sealing layer is of an elastic structure, the sealant is a water swellable water-blocking filling adhesive, and the cured water-blocking filling adhesive has a hardness of 25 HA to 40 HA, a density of 0.8 g/cm3 to 1.1 g/cm3, and a use temperature of −60° C. to 200° C.;
• wherein the optical fiber ribbon array is formed by stacking the plurality of optical fiber ribbons in parallel with each other, each optical fiber ribbon comprises a plurality of optical fibers and a connection layer, wherein the plurality of optical fibers are linearly arranged, the connection layer is located between two adjacent optical fibers, the connection layer wraps a surface of each optical fiber in an axial direction of the each optical fiber, and the connection layer, after photo-curing, forms the optical fiber ribbon together with the optical fibers,
• the connection layer has a viscosity of 3800 mPa·S to 4500 mPa·S at 25° C. and a density of 1.08 g/cm3 to 1.15 g/cm3 before curing, and the connection layer has an elastic modulus of 350 MPa to 650 MPa, an elongation at break of not less than 35%, and a tensile strength of not less than 15 MPa under preset conditions, wherein the preset conditions are 2.5% elastic deformation and 23° C.