Power cable

Abstract

The invention relates to the technical field of power and cables, and particularly relates to a power cable. The power cable is composed of a cable core and a sheath layer coating the cable core. The cable core is formed by twisting a plurality of insulated wires, and each insulated wire is composed of a conductor and an insulating layer coating the conductor. The power cable is characterized in that the sheath layer is made of the following raw materials (by weight): 80-90 parts of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halide-free flame-retardant polyethylene or low-smoke low-halide flame-retardant polyethylene, 4-6 parts of commercial red or yellow or green or brown or purple or blue or orange or violet or pink or cyan polyethylene color concentrates, 2-4 parts of transparent glass beads with the fineness of less than 300 meshes, and 2-4 parts of colorful fluorescent glass beads with the fineness of less than 300 meshes. The power cable is easy to manufacture, identity and construct, convenient for first-aid repair and maintenance at night, and can be identified very clearly under the conditions of bright light, weak light and no light.

Description

technical field [0001] The invention relates to the technical fields of electric power, cables and materials, in particular to a light-emitting cable. Background technique [0002] In the prior art, the appearance of cables and optical cables is mostly uniform in color. When multiple cables and optical cables are laid in the same pipe, groove, ditch, and pole, there are problems that are not easy to identify. have brought inconvenience. For this reason, a lot of research has been done on the identification of optical cables at home and abroad. For example, the authorized announcement number is CN2521627Y, and the name is: color strip identifiable optical cable; the authorized announcement number is CN2840081Y, and the name is: a kind of photoelectric integrated cable; CN201698067U, name: a new type of optical cable with colored strips or colored leather on the surface of the outer sheath; authorization announcement number: CN202196211U, name: 8-shaped self-supporting overhe...

AI Technical Summary

Problems solved by technology

[0002]In the prior art, most of the cables and optical cables are in the same color. , there is a problem that is not easy to identify, which brings inconvenience to installation, maintenance and testing.

For this reason, a lot of research has been done on the identification of optical cables at home and abroad. For example, the authorized announcement number is CN2521627Y, and the name is: color strip identifiable optical cable; the authorized announcement number is CN2840081Y, and the name is: a kind of photoelectric integrated cable; CN201698067U, name: a new type of optical cable with colored strips or colored leather on the surface of the outer sheath; authorization announcement number: CN202196211U, name: 8-shaped self-supporting overhead optical cable with color stripes on the surface; authorization announcement number is CN202256824U , the name is: optical cable with logo; etc. all use color bars to identify optical cables, but this identification is often only suitable for occasions with sufficient light, and cannot be identified in dim light

The authorized announcement number is CN202615012U and the name is: anti-gunshot night vision optical cable; the authorized announcement number is CN2862065Y and the name is: night luminous optical cable; although the technical characteristics of using luminous color bars for identification are disclosed, due to insufficient disclosure of documents, People in the technical field simply cannot implement

The authorization number is CN201310025774.5, and the name is: A night vision optical cable, which discloses an optical cable for night vision and bright light recognition. Due to its complex composition, it is difficult to control in manufacturing; and it is poor in environmental protection

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