Substation optical cable

Abstract

The invention discloses a substation optical cable and belongs to the technical field of optical cables. The substation optical cable comprises an optical cable outer sheath; the inner end of the optical cable outer sheath is connected with an elastic buffering layer; the inner end of the elastic buffering layer is connected with a first flame-retardant layer; the inner end of the first flame-retardant layer is connected with a water-resisting layer; the inner end of the water-resisting layer is connected with a second flame-retardant layer; the inner end of the second flame-retardant layer isconnected with an optical cable inner tube; a plurality of cable cores in an annular array are arranged in the optical cable inner tube; metal phosphated steel wire reinforcing cores are arranged atthe center of the optical cable inner tube; the metal phosphated steel wire reinforcing cores are arranged between the plurality of cable cores; the optical cable inner tube is filled with grease; andthe cable cores are filled with a plurality of optical fibers; the outer end of the optical cable outer sheath is fixedly connected with a plurality of uniformly-distributed fixing sleeves; and therefore, the tensile strength and waterproofness of the optical cable can be improved, a condition that the optical cable is fractured and is subject to water infiltration due to natural environment andother external force factors can be almost avoided, and therefore, the stability and safety of the work of the optic cable can be improved.

Description

technical field [0001] The invention relates to the technical field of optical cables, and more specifically relates to an optical cable for a substation. Background technique [0002] With the development of science and technology, the substation has developed from traditional relay protection to microcomputer protection, and the connection between equipment has developed from traditional control power cable connection to optical cable connection. Optical cable transmission signals avoid electromagnetic compatibility brought by control cables. , transmission overvoltage and two-point grounding problems fundamentally solve the problem of anti-interference and improve transmission reliability. Optical cables are manufactured to meet optical, mechanical or environmental performance specifications. A communication cable assembly in which one or more optical fibers are used as the transmission medium and can be used alone or in groups. The optical cable is mainly composed of an ...

AI Technical Summary

Problems solved by technology

[0003] Generally, the optical cables in substations are laid outdoors and are directly affected by environmental changes. When encountering strong wind or other external forces, the cables are easy to be pulled and broken. Even if they are not broken in a short period of time, the optical cables are stretched back and forth for a long time. There is a risk of breakage under normal conditions. Once the cable breaks and interrupts signal transmission, it will cause irreparable losses. In rainy weather, rainwater can easily enter the inside of the cable from the gap and damage the cable core.

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