CN211045124U

CN211045124U - Halogen-free power cable

Info

Publication number: CN211045124U
Application number: CN201922064470.5U
Authority: CN
Inventors: 徐延华; 李书银
Original assignee: Jinhu Botong Technology Co ltd
Current assignee: Jinhu Botong Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-17
Anticipated expiration: 2029-11-26

Abstract

A halogen-free power cable comprises a cable core, wherein the cable core is structurally characterized in that: the inner layer is a copper conductor, a high-density polyethylene insulating layer is arranged outside the copper conductor, a plurality of silicon carbide fiber ropes are uniformly distributed in the high-density polyethylene insulating layer, a basalt fiber layer is arranged outside the high-density polyethylene insulating layer, a carbon fiber layer is arranged outside the basalt fiber layer, an aluminum tape wrapping layer is arranged outside the carbon fiber, and a high-temperature vulcanized silicone rubber sheathing layer is arranged outside the aluminum tape wrapping layer. The utility model provides a safe environmental protection, the halogen-free power cable of tensile simultaneously.

Description

Halogen-free power cable

Technical Field

The invention belongs to the technical field of cables, and particularly relates to a halogen-free power cable which is safe, environment-friendly and durable.

Background

In the traditional PVC (polyvinyl chloride) wire, when a fire disaster happens, a PVC mixture is easily decomposed to escape a large amount of highly toxic and corrosive hydrogen chloride gas after being heated, and a large amount of highly toxic dense smoke is generated, so that great life and property losses are caused, and great difficulty is brought to rescue work. In order to avoid and reduce fire and secondary damage caused by the fire as much as possible, a great deal of research for more than ten years shows that the problem can be effectively solved by changing the outer layer material and the process used by the product, but the halogen-free cable is relatively weak in tensile strength and large in use limitation, so that the design of the halogen-free power cable with good tensile strength is needed.

Disclosure of Invention

In order to meet the requirements, the invention provides a halogen-free power cable which is safe and environment-friendly, tensile and corrosion resistant and has a wide application market.

The technical scheme adopted by the invention for solving the technical problems is as follows: a halogen-free power cable comprises a cable core, wherein the cable core is structurally characterized in that: the inner layer is a copper conductor, a high-density polyethylene insulating layer is arranged outside the copper conductor, a plurality of silicon carbide fiber ropes are uniformly distributed in the high-density polyethylene insulating layer, a basalt fiber layer is arranged outside the high-density polyethylene insulating layer, a carbon fiber layer is arranged outside the basalt fiber layer, an aluminum tape wrapping layer is arranged outside the carbon fiber, and a high-temperature vulcanized silicone rubber sheathing layer is arranged outside the aluminum tape wrapping layer.

The high-density polyethylene is a halogen-free insulating material and has good toughness, a silicon carbide fiber rope is added into an insulating layer of the high-density polyethylene insulating layer, the highest service temperature of the silicon carbide fiber reaches 1200 ℃, the strength reaches 1960-4410 MPa, the strength retention rate is more than 80% at the highest service temperature, the modulus is 176.4-294 GPa, the chemical stability is good, the tensile capacity of the high-density polyethylene insulating layer is greatly improved, the basalt fiber and the carbon fiber layer play a role in barrier protection and simultaneously have good tensile capacity, the aluminum tape wrapping layer plays a role in shielding external electromagnetic interference, and the high-temperature silicon sulfide rubber layer is high-temperature resistant and corrosion resistant and is a very good sheath material.

The invention has the beneficial effects that: the halogen-free power cable is safe, environment-friendly, tensile and corrosion-resistant.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1. the cable comprises a copper conductor, 2 parts of a high-density polyethylene insulating layer, 3 parts of a silicon carbide fiber rope, 4 parts of a basalt fiber layer, 5 parts of a carbon fiber layer, 6 parts of an aluminum tape wrapping layer and 7 parts of a high-temperature vulcanized silicone rubber sheath layer.

Detailed Description

In fig. 1, a halogen-free power cable, in which: 1. the cable comprises a copper conductor, 2 parts of a high-density polyethylene insulating layer, 3 parts of a silicon carbide fiber rope, 4 parts of a basalt fiber layer, 5 parts of a carbon fiber layer, 6 parts of an aluminum tape wrapping layer and 7 parts of a high-temperature vulcanized silicone rubber sheath layer. The cable core structure is: the inner layer is a copper conductor, a high-density polyethylene insulating layer is arranged outside the copper conductor, a plurality of silicon carbide fiber ropes are uniformly distributed in the high-density polyethylene insulating layer, a basalt fiber layer is arranged outside the high-density polyethylene insulating layer, a carbon fiber layer is arranged outside the basalt fiber layer, an aluminum tape wrapping layer is arranged outside the carbon fiber, and a high-temperature vulcanized silicone rubber sheathing layer is arranged outside the aluminum tape wrapping layer.

Claims

1. The utility model provides a there is not steamed power cable, includes cable core, characterized by: the cable core structure is: the inner layer is a copper conductor, a high-density polyethylene insulating layer is arranged outside the copper conductor, a plurality of silicon carbide fiber ropes are uniformly distributed in the high-density polyethylene insulating layer, a basalt fiber layer is arranged outside the high-density polyethylene insulating layer, a carbon fiber layer is arranged outside the basalt fiber layer, an aluminum tape wrapping layer is arranged outside the carbon fiber, and a high-temperature vulcanized silicone rubber sheathing layer is arranged outside the aluminum tape wrapping layer.