Photoelectric composite cable

Abstract

The invention discloses a photoelectric composite cable, and the cable comprises a cable core and a central reinforcement part (6), and is characterized in that the cable core comprises a plurality ofelectric units (24) and an optical unit; an insulating layer (25) is arranged outside each electric unit (24); the optical unit comprises a sleeve (26) and a plurality of optical fibers positioned inthe sleeve (26); a water-blocking tape (3) is longitudinally wrapped outside the cable core; and a stainless steel band (23), a polyethylene sheath (22) and a nylon sheath (21) are sequentially arranged outside the water-blocking tape (3). The photoelectric composite cable disclosed by the invention has the characteristics that each unit is fixed stably, the mechanical property can be met, the environmental property can be met and the like.

Description

technical field [0001] The invention belongs to the technical field of communication optical cable manufacturing, and relates to a composite cable, in particular to a photoelectric composite cable. Background technique [0002] Conventional photoelectric composite cables generally adopt a 1+4 or 1+5 structure, such as figure 1 As shown, it usually adopts high-strength auxiliary reinforcements, and the electric units are generally two or four symmetrical. The structure is generally not round, and the internal structural units are not easy to produce relative sliding. Layer, the steel strip is pressed into a toothed steel strip with a depth of 0.5-0.6mm through an embossing machine. The steel strip is easy to bend and form, which increases the bending performance of the optical cable. A layer of polyethylene about 1.8mm is extruded outside the steel strip The sheath material forms the first protective wall, which can pass the environmental performance and mechanical performan...

AI Technical Summary

Problems solved by technology

[0002] Conventional photoelectric composite cables generally adopt a 1+4 or 1+5 structure, such as figure 1 As shown, it usually adopts high-strength auxiliary reinforcements. The electric unit is generally two or four symmetrical. The structure is generally not round. The internal structural unit is not easy to produce relative sliding. layer, the steel strip is pressed into a toothed steel strip with a depth of 0.5-0.6mm through the embossing machine, the steel strip is easy to bend and form, which increases the bending performance of the optical cable, and a layer of polyethylene about 1.8mm is extruded outside the steel strip The sheath material forms the first protective wall, which can pass the environmental performance and mechanical performance smoothly, but the outer diameter of the optical cable is large, the weight of the optical cable is relatively large, and the laying process is difficult

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