A low-smoke halogen-free rare earth aluminum alloy power cable

Abstract

The invention discloses a low-smoke halogen-free rare earth aluminum alloy power cable, comprising multiple conductors, wherein each conductor comprises a rare earth aluminum alloy wire and an insulating layer wrapped outside the rare earth aluminum alloy wire, the multiple conductors are stranded into a cable core, a single-sided metal and plastic composite tape is wrapped outside the cable core, a plastic layer surface of the single-sided metal and plastic composite tape faces inwards, a metal layer surface of the single-sided metal and plastic composite tape faces outwards, a coating is coated outside the metal layer of the single-sided metal and plastic composite tape, a sheathing layer is wrapped outside the coating, and the sheathing layer is made of low-smoke halogen-free cross-linked polyolefin materials. The invention provides the low-smoke halogen-free rare earth aluminum alloy power cable which is simple in structure and good in environment protecting performance, has low-noise halogen-free effects, and overcomes the defects that the cable is heavier in weight, larger in resistance, poor in conductivity, poor in safety performance and the like in the prior art.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a low-smoke halogen-free rare earth aluminum alloy power cable. Background technique [0002] With the rapid development of the power industry, the demand for cables is increasing at an annual growth rate of 10-15%. At present, the conductors used in the wire and cable industry are mainly copper and aluminum. Due to the rapid increase in copper prices, in order to reduce production costs, the world's wire and cable industry has proposed a method of replacing copper with aluminum as wire and cable conductors. At present, my country's aluminum production capacity is excessive. At the same time, the gap of copper needs to be imported. In order to change the dependence on copper, make full use of domestic resources, and ensure the sustainable development of the power industry, the key is to vigorously promote aluminum as the wire and cable conductor. . Aluminum is an ideal material t...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a low-smoke halogen-free rare-earth aluminum alloy power cable, which has a simple structure, good low-smoke and halogen-free environmental protection, and overcomes the heavy weight and resistance of the cable in the prior art. Larger, poor conductivity, poor safety performance and other defects

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