In fact, there are two methods for aerial optical cables laying: one is "fixed-pulley traction method", including "manual traction method" and "mechanical traction method"; the other is "cable tray moving and releasing method". Although there is no big difference between OPGW and ground wire in terms of construction methods and construction requirements, OPGW also carries the entire length of optical fiber at the same time, so it has special requirements in terms of bending, bending and installation. At present, the most. Many people are confused about the hanging of aerial optical cables. An optical cable is clamped by a method that an inner sleeve wall tightens inward, that is, through screw-thread fit, an outer sleeve is screwed into the inner sleeve wall. Since the outer wall of. The invention discloses an optical cable for oil and gas pipeline same-hole back-dragging, which comprises optical fibers, an optical fiber unit protection tube, an inner armored reinforcement, an inner sheath, a buffer layer, an outer armored reinforcement, a water-blocking material. With 20 years of experience in professional opitcal cable manufacturing, we have a set of mature methods and experience for optical cable construction. The shortest path is not necessarily the best.