Anti-electric arc nonmetallic leading-in optic cable

Abstract

The invention provides an anti-electric arc nonmetallic leading-in optic cable, which belongs to the technical field of communication optical cable manufacturing, and solves the problem that the existing indoor optical cable is difficult to mount. The anti-electric arc nonmetallic leading-in optic cable comprises a sheath; the sheath is molded through injection by a low-smoke flame-retardant non-halogen polyolefin material; central places on the upper surface and the lower surface of the sheath are provided with V-shaped tearing grooves; the central place of the sheath is provided with a loose tube; the central place of the loose tube is provided with an optical fiber; the outer side wall of the optical fiber and the inner side wall of the loose tube are filled with ointment; the left side of the loose tube in the sheath is provided with a pair of left reinforcing parts made by polyester fiber and a gap exists between the pair of left reinforcing parts; the right side of the loose tube in the sheath is provided with a pair of right reinforcing parts made by polyester fiber, and a gap exists between the pair of right reinforcing parts. The anti-electric arc nonmetallic leading-in optic cable has the advantage of both elasticity and strength.

Description

technical field [0001] The invention belongs to the technical field of communication optical cable manufacturing, and relates to an anti-arc non-metal lead-in optical cable. Background technique [0002] With the development of optical communication networks and the deepening of optical fiber access, FTTH network construction is increasing exponentially. At present, domestic mainstream operators have clearly stated that they will invest huge sums of money in large-scale commercialization of FTTH. From this series of According to the situation, in the next few years, the focus of optical fiber communication network construction will shift to FTTH, and specially designed optical cables will emerge as the times require, and the convenience of introduction, branching, and wiring will be the main considerations for new structural optical cables. , compact optical cable structure, convenient branching, installation and wiring, and strong versatility will be the development trend o...

AI Technical Summary

Problems solved by technology

[0006] The sheath is injection-molded with low-smoke, flame-retardant, halogen-free polyolefin material at one time, which is easy to process and makes the sheath have a certain strength. The impact on the optical cable is reduced and the service life is long; the gap between the loose tube and the optical fiber is covered with ointment. The existence of the ointment solves the problem of decreased transmission speed caused by unstable attenuation value during optical fiber transmission, improves product quality, and thus improves Internet access. speed; the number of left and right reinforcements is four in total, and they are arranged on both sides of the sheath. The tensile strength of the left and right reinforcements is greater than 2000N, and the left and right reinforcements make the sheath The bending radius is small and the modulus of elasticity is large, which makes this optical cable suitable for wiring between corridors and rooms. Both the left and right reinforcements are made of polyester fiber material, which is small in density and light in weight, and is easy to install, and the polyester fiber material It has the characteristics of no magnetic interference, solves the difficulty that the metal reinforcement cannot be connected with the strong current wiring, and at the same time makes the optical cable have certain advantages of tensile strength, lateral pressure resistance and high impact strength, and meets the technical requirements of indoor wiring. Simple

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