CN216250121U

CN216250121U - Novel insulating aerial [ insulated ] cable

Info

Publication number: CN216250121U
Application number: CN202122949982.7U
Authority: CN
Inventors: 苏浩晴; 苏璇; 张金利
Original assignee: Nanjing Sulan Cable Manufacturing Co ltd
Current assignee: Nanjing Sulan Cable Manufacturing Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-08
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a novel insulated overhead cable, which comprises a cable body, wherein the cable body comprises a filling layer, a plurality of cable cores are fixedly inserted in the filling layer, the outer side of the filling layer is fixedly connected with a shielding layer, the outer side wall of the shielding layer is fixedly connected with a buffer layer, the outer side wall of the buffer layer is fixedly connected with a heat insulation layer, the outer side wall of the heat insulation layer is fixedly connected with a protection layer, and the outer side of the protection layer is fixedly connected with a sheath layer.

Description

Novel insulating aerial [ insulated ] cable

Technical Field

The utility model relates to the field of related products of cables, in particular to a novel insulated overhead cable.

Background

At present, the 10kV cable is convenient to construct and maintain and high in power supply reliability along with deep development of rural power grid transformation and starting of urban power grid transformation, is more and more widely applied to rural power grid box transformer substations and urban power grid distribution lines, and is an aluminum conductor overhead insulated cable widely applied to rural power grids and urban power grid lines.

However, the existing insulated overhead cable has low strength and small total conductor breaking force, so that the service life of the cable is shortened when the cable meets severe weather outdoors, and the cable has defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel insulated overhead cable which has excellent impact resistance through the arrangement of a multilayer mechanism, can meet the use condition of the cable in a severe environment, greatly prolongs the service life of the cable and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel insulating aerial [ insulated ] cable, includes the cable body, the cable body includes the filling layer, the inside fixed inserting of filling layer is equipped with a plurality of cable cores, the outside fixedly connected with shielding layer of filling layer, the lateral wall fixedly connected with buffer layer of shielding layer, the lateral wall fixedly connected with insulating layer of buffer layer, the lateral wall fixedly connected with inoxidizing coating of insulating layer, the outside fixedly connected with restrictive coating of inoxidizing coating.

Preferably, the filling layer is a radiation cross-linked low-smoke halogen-free high-flame-retardant polyolefin layer.

Preferably, the shielding layer is made of a polyester aluminized film and chlorinated polyethylene composite material.

Preferably, the buffer layer is made of insulating rubber.

Preferably, the heat insulation layer is made of superfine glass wool.

Preferably, the protective layer is made of glass fiber interwoven.

Preferably, the material of the sheath layer is a polyethylene layer.

Compared with the prior art, the utility model has the beneficial effects that:

this novel insulating aerial [ insulated ] cable, the filling layer coats a plurality of cable cores, adopt irradiation cross-linking low smoke and zero halogen high flame retardant polyolefin layer to make the packing more closely knit, round, the shielding layer in the outside adopts polyester aluminizer and chlorinated polyethylene composite material to have prevents static, prevent the radio frequency, waterproof vapor infiltration, a great deal of functions such as salt fog, the setting of buffer layer adopts insulating rubber to increase resilience performance, difficult fracture, the insulating layer of constituteing by superfine glass cotton effectively stops external high temperature invasion, the protective layer adopts glass silk interweaving and carries out secondary protection to inner structure, the outside restrictive coating adopts the polyethylene layer to have advantages such as mechanical strength height, shock resistance, the utility model has excellent impact resistance through the setting of multilayer mechanism, can satisfy the service condition of cable under adverse circumstances, the life of cable has been improved greatly.

Drawings

Fig. 1 is a schematic structural diagram of a novel insulated overhead cable according to the present invention.

In the figure: 1. a cable body; 2. a filling layer; 3. a cable core; 4. a shielding layer; 5. a buffer layer; 6. a thermal insulation layer; 7. a protective layer; 8. a sheath layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, an embodiment of the present invention: the utility model provides a novel insulating aerial [ insulated ] cable, includes cable body 1, and cable body 1 includes filling layer 2, and the inside fixed insertion of filling layer 2 is equipped with a plurality of cable cores 3, and the outside fixedly connected with shielding layer 4 of filling layer 2, the lateral wall fixedly connected with buffer layer 5 of shielding layer 4, the lateral wall fixedly connected with insulating layer 6 of buffer layer 5, the lateral wall fixedly connected with inoxidizing coating 7 of insulating layer 6, the outside fixedly connected with restrictive coating 8 of inoxidizing coating 7.

In this embodiment, the filling layer 2 is a cross-linked low-smoke halogen-free high-flame-retardant polyolefin layer by irradiation; the shielding layer 4 is made of a polyester aluminized film and chlorinated polyethylene composite material; the buffer layer 5 is made of insulating rubber; the heat insulation layer 6 is made of superfine glass wool; the protective layer 7 is made of glass fiber by interweaving; the material of the sheath layer 8 is a polyethylene layer.

The working principle is as follows: at first, filling layer 2 carries out the cladding to a plurality of cable cores 3, adopt irradiation cross-linking low smoke zero halogen high flame retardant polyolefin layer to make the packing more closely knit, round, shielding layer 4 in the outside adopts polyester aluminizer and chlorinated polyethylene composite material to have prevents static, prevent the radio frequency, waterproof vapor infiltration, a great deal of functions such as salt fog are prevented, buffer layer 5's setting adopts insulating rubber to increase resilience performance, difficult fracture, the invasion of external high temperature is effectively stopped to insulating layer 6 by the cotton constitution of superfine glass, inoxidizing coating 7 adopts the glass silk to interweave and carries out the secondary protection to inner structure, outside restrictive coating 8 adopts the polyethylene layer to have mechanical strength height, advantages such as shock resistance.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel insulated overhead cable comprises a cable body (1), and is characterized in that: the cable comprises a cable body (1) and is characterized in that the cable body comprises a filling layer (2), a plurality of cable cores (3) are fixedly inserted inside the filling layer (2), a shielding layer (4) is fixedly connected to the outer side of the filling layer (2), a buffer layer (5) is fixedly connected to the outer side wall of the shielding layer (4), a heat insulation layer (6) is fixedly connected to the outer side wall of the buffer layer (5), a protection layer (7) is fixedly connected to the outer side wall of the heat insulation layer (6), and a sheath layer (8) is fixedly connected to the outer side of the protection layer (7).

2. The new insulated overhead cable of claim 1, wherein: and the filling layer (2) is an irradiation crosslinking low-smoke halogen-free high-flame-retardant polyolefin layer.

3. The new insulated overhead cable of claim 1, wherein: the shielding layer (4) is made of a polyester aluminized film and chlorinated polyethylene composite material.

4. The new insulated overhead cable of claim 1, wherein: the buffer layer (5) is made of insulating rubber.

5. The new insulated overhead cable of claim 1, wherein: the heat insulation layer (6) is made of superfine glass wool.

6. The new insulated overhead cable of claim 1, wherein: the protective layer (7) is made of glass fiber interwoven.

7. The new insulated overhead cable of claim 1, wherein: the material of the sheath layer (8) is a polyethylene layer.