Air-blowing optical cable

Abstract

An air-blowing optical cable, includes a cable core (1) and an outer sheath (3) coated on the outside of the cable core (1). A protruding strip (5) is provided on an outer wall of the outer sheath (3), and a height direction of the protruding strip (5) extends outward along a radial direction of the optical cable, and the protruding strip (5) has a length direction extending along an axial direction of the air-blowing optical cable and spirally surrounds an outer surface of the outer sheath (3). Gas advances along a spiral direction of the protruding strip (5), generating a thrust component on the optical cable along the axial direction; and a propelling force Ff that is generated by the thrust component to propel each meter of optical cable to move is greater than 50N. The protruding strip (5) is provided on the outer side of the outer sheath (3), reducing friction during the laying of optical cable and external conduits, and ensuring the completion of the laying of air-blowing optical cable. Meanwhile, controlling the propelling force Ff exerted by the gas to propel the optical cable each meter to be greater than 50N, enables the laying of the optical cable to be completed more quickly and quickly and smoothly, saving time and effort.