Thermal insulation optical cable power transmission hybrid cable

Abstract

The invention discloses a thermal insulation optical cable power transmission hybrid cable, which comprises a filling layer, wherein the internal part of the filling layer is provided with an optical fiber assembly and isosceles trapezoid modules. The thermal insulation optical cable power transmission hybrid cable is characterized in that the filling layer is externally coated with an isolation layer, the isolation layer is externally coated with a PE outer sheath, the optical fiber assembly comprises a loose tube, the loose tube is internally provided with a fiber paste layer, the fiber paste layer is internally provided with optical fibers, the number of the isosceles trapezoid modules is six, the six isosceles trapezoid modules comprise three electrical conductors with the cross section being in the shape of an isosceles trapezoid and three isolation blocks with the cross section being in the shape of an isosceles trapezoid, the adjacent electrical conductors are arranged in a mode of being isolated by the isolation block, all of the isosceles trapezoid modules form a polygonal ring with the outer diameter being a hexagon and the inner diameter being a hexagon in an enclosing mode, the loose tube is arranged in the polygonal ring, and an axis of the loose tube is overlapped with an axis of the polygonal ring.

Description

technical field [0001] The invention relates to an optical cable structure, in particular to a heat-insulating optical cable power transmission hybrid cable. Background technique [0002] Optical cable is a light transmission tool that achieves the principle of total reflection of light in fibers made of glass or plastic. An optical cable is a communication line in which a certain number of optical fibers form a cable core in a certain way, and is covered with a sheath, and some are also covered with an outer sheath to realize optical signal transmission. In the prior art, the optical fiber is arranged in the loose tube, and at the same time, fiber paste is added to the loose tube. The fiber paste is indispensable in the production of central tube type and layer-stranded optical cables, and plays a role of sealing, stress resistance and buffering function, but it does not have the effect of heat insulation; in the prior art, in order to combine the optical fiber and the tra...

AI Technical Summary

Problems solved by technology

In the prior art, the optical fiber is arranged in the loose tube, and at the same time, fiber paste is added to the loose tube. The fiber paste is indispensable in the production of central tube type and layer-stranded optical cables, and plays a role of sealing, stress resistance and buffering function, but it does not have the effect of heat insulation; in the prior art, in order to combine the optical fiber and the transmission line, the market has begun to develop the optical fiber transmission cable, which combines the optical cable and the transmission cable, but because the electric wire in the transmission cable can Bear greater stress, while the optical cable bears less stress due to the fragility of the internal optical fiber, while the traditional structure simply integrates the electrical wire and optical fiber together, so this will reach the limit due to the small adaptive stress of the optical fiber At the same time, because the electric wire in the power transmission cable needs to overcome its own resistance in the process of transmitting current, it will generate a lot of heat, so the heat will affect the transmission performance of the optical fiber, so the existing power transmission optical cable needs to overcome the above important problems

Images