Water-blocking optical cable with high pressure resistance and high impact resistance

Abstract

The invention provides a water-blocking optical cable with high pressure resistance and high impact resistance. The water-blocking optical cable comprises a cable core and a protective layer structure on the outer side of the cable core. The protective layer structure comprises a PET belt wrapping layer, a braided shielding layer, an outer buffer layer, an armor layer and an outer sheath layer which are sequentially wrapped from inside to outside. The cable core comprises a central reinforcing support piece and a plurality of optical communication units arranged around the periphery of the central reinforcing support piece, and a water blocking piece is arranged in a gap between every two adjacent optical communication units and the PET belt wrapping layer; the optical communication unit comprises a sleeve and an optical fiber in the sleeve. The cable is reasonable in structural design, resistant to bacteria and mildew, resistant to aging and corrosion, good in environmental protection performance, low in hygroscopicity, low in heat conductivity coefficient, high in heat preservation performance, resistant to extrusion, high in impact resistance, long in service life, stable and reliable in signal transmission and the like.

Description

technical field [0001] The invention belongs to the technical field of optical cable design and manufacture, and in particular relates to a water-blocking optical cable with high compression resistance and impact resistance. Background technique [0002] With the development of communication technology, the application of optical cables has become more and more popular, and at the same time, higher requirements have been put forward for optical cables. Due to the particularity of optical cables, optical cables often need to be used in some harsh environments. For example, in some severe cold areas, water in pipes or tanks often freezes. Once the water freezes, the volume of water will increase, causing the optical cable to be compressed. Deformation, optical fiber breakage, resulting in communication interruption. In areas with harsh working conditions, facility maintenance is also difficult. Once the optical cable is damaged, the input of manpower and material resources is ...

AI Technical Summary

Problems solved by technology

Due to the particularity of optical cables, optical cables often need to be used in some harsh environments. For example, in some severe cold areas, water in pipes or tanks often freezes. Once the water freezes, the volume of water will increase, causing the optical cable to be compressed. Deformation, optical fiber breakage, resulting in communication interruption. In these areas with harsh working conditions, it is difficult to repair and maintain facilities. Once the optical cable is damaged, the input of manpower and material resources is relatively high.

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