Optical fiber composite aerial insulated cable

Abstract

The invention discloses an optical fiber composite aerial insulated cable which comprises a combined body in the center of the cable. The combined body is formed by twisting a plurality of steel wires and an optical unit, conductive filaments are twisted outside the combined body to form a conductive layer, the conductive layer is sequentially wrapped by a semi-conductive electric shielding layer and an insulating layer, and the optical unit is formed by twisting an optical fiber and a steel loose sleeve wrapping the optical fiber. The optical fiber composite aerial insulated cable is of a combined structure of the communication optical unit and an aerial insulated cable body, reduces construction amount and reduces construction period. Furthermore, the optical unit is protected by a bearing stranded wire, a conductor metal filament and the insulating layer simultaneously. Thus, the optical unit can achieve better mechanical performance protection, and the problem that the optical unit is prone to being damaged is well solved without affecting electric energy transmission.

Description

[0001] technical field [0002] The invention belongs to the field of power cables, and in particular relates to an optical fiber composite overhead insulated cable. Background technique [0003] At present, in order to avoid the safety of offline facilities and pedestrians due to discharge, overhead insulated cables are used in urban overhead lines. In the current urban poles and towers, overhead insulated cables that provide electrical energy and optical cables that provide communication are laid at the same time. "Secondary construction" appears in the construction, that is, the construction of overhead insulated cables and communication optical cables are constructed separately, which increases the amount of construction and the construction period. At the same time, the construction cost is high, and the strength of communication optical cables is low. easily damaged. Contents of the invention [0004] The object of the present invention is to provide an optical f...

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Problems solved by technology

[0003] At present, in order to avoid the safety of offline facilities and pedestrians due to discharge, overhead insulated cables are used in urban overhead lines. In the current urban poles and towers, overhead insulated cables that provide electrical energy and optical cables that provide communication are laid at the same time. "Secondary construction" appears in the construction, that is, the construction of overhead insulated cables and communication optical cables are constructed separately, which increases the amount of construction and the construction period. At the same time, the construction cost is high, and the strength of communication optical cables is low. easily damaged

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