An optoelectronic composite cable

Abstract

The invention discloses a photoelectric composite cable, comprising a cable core and a central reinforcement (6), characterized in that the cable core comprises a plurality of electrical units (24) and an optical unit; each of the electrical units (24 ) is provided with an insulating layer (25) outside, and the optical unit includes a sleeve (26) and a number of optical fibers located in the sleeve (26); a water-blocking tape (3) is longitudinally wrapped outside the cable core; A stainless steel belt (23), a polyethylene sheath (22) and a nylon sheath (21) are sequentially provided outside the water blocking belt (3). The photoelectric composite cable of the present invention has the characteristics that each unit is fixed and stable, and can meet not only mechanical performance, but also environmental performance 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 an optoelectronic composite cable. Background technique [0002] Conventional optoelectronic composite cables generally use 1+4 or 1+5 structures, such as figure 1 As shown, it usually uses high-strength auxiliary reinforcements, and the electrical 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. The steel strip is pressed into a toothed steel strip with a depth of 0.5-0.6mm after passing through a corrugating machine. The steel strip is easy to bend and form, which increases the bending performance of the optical cable. A layer of polyethylene with a thickness of about 1.8mm is extruded outside the steel strip. The sheath material forms the first layer of protection wall, which can smoothly pass the env...

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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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