Reinforced protection micro-bunched cable and manufacturing process thereof

A reinforced protection micro-bunched cable, comprising an outer sheath, a reinforced layer, a reinforcement, and a cable core, the cable core cladded with the reinforced layer and the outer sheath successively, and the reinforcement symmetrically embedded in an inner wall of the outer sheath;

• wherein
• an outer wall of the outer sheath is circular, the inner wall of the outer sheath forms an oval inner cavity, a thickness of a short-axis wall of the outer sheath is greater than a thickness of a long-axis wall of the outer sheath, and the reinforcement is embedded in the short-axis wall of the outer sheath;
• the reinforced layer fits to the inner cavity of the outer sheath to form an oval outer wall, an inner wall of the reinforced layer forms a circular inner cavity, a thickness of a long-axis wall of the reinforced layer is greater than a thickness of a short-axis wall of the reinforced layer, and addition of the thickness of the long-axis wall of the reinforced layer and the thickness of the long-axis wall of the outer sheath is equal to the sum of the thickness of the short-axis wall of the reinforced layer and the thickness of the short-axis wall of the outer sheath;
• the cable core comprises a plurality of micro-bunched tube units comprising a micro-bunched tube, the micro-bunched tube filled with an optical fiber and water blocking material, an outer surface of the micro-bunched tube is uniformly arranged with bumps along a circumference of its radial section, a gap is disposed between adjacent bumps, a radius of each bump is same as a thickness of a micro-bunched tube wall;
• a Shore D hardness of the bump material is smaller than that of the micro-bunched tube wall material;
• and the bumps are configured to deform until they are depressed into the micro-bunched tube wall with increase of stress and to thereby cause an inner wall of the micro-bunched tube wall to extrude inside and form small convex arcs.