Self-support type building hoisting intelligent medium-voltage power cable and manufacturing method thereof

Abstract

The invention discloses a self-supporting intelligent medium-voltage power cable for building hoisting and a manufacturing method thereof. The cable consists of a cable core, a low-smoke, halogen-free wrapping tight belt, and a low-smoke, halogen-free, and weather-resistant outer sheath from the inside to the outside. ; The cable core includes three insulated wire cores, intelligent control on-line monitoring components and low-smoke and halogen-free filling; each insulated wire core is a copper-magnesium alloy conductor, a composite insulation layer and a copper tape shielding layer from the inside to the outside; The composite insulating layer is a three-layer cross-linked co-extruded conductor semi-conductive shielding layer, a cross-linked polyethylene insulating layer and an insulating semi-conductive shielding layer; the magnesium content of the copper-magnesium alloy conductor is 0.01%-0.1%. Conductor resistivity ≥ 95% IACS, tensile strength not less than 390MPa. The copper-magnesium alloy conductor of the present invention has a tensile strength of 390 MPa, can withstand 300±5°C, softens at a high temperature for 2 hours, has a strength retention rate of 95%, and does not weaken the tensile strength at a long-term working temperature of 150°C. The conductor is a regular stranded non-tight conductor Pressed round conductors can bear load for a long time.

Description

technical field [0001] The invention relates to a self-supporting building hoisting intelligent medium-voltage power cable and a manufacturing method thereof. Background technique [0002] At present, there is no self-supporting high-strength copper-magnesium alloy conductor low-smoke halogen-free building hoisting intelligent medium-voltage power cable manufacturing method in the market. Now, the steel wire rope load-bearing unit is generally used on the medium-voltage cable. This method is used to produce The existing building hoisting cables have the following defects: the outer diameter of the combined cable is large, the required cable bending radius is large, and the channel size for installing the hoisting cables is large; the steel wire rope bearing unit is added, the overall weight increases, and the hoisting load is large; Intelligent control of online monitoring components cannot monitor the operation of medium voltage cables. Contents of the invention [0003]...

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Problems solved by technology

[0002] At present, there is no self-supporting high-strength copper-magnesium alloy conductor low-smoke halogen-free building hoisting intelligent medium-voltage power cable manufacturing method in the market. Now, the steel wire rope load-bearing unit is generally used on the medium-voltage cable. This method is used to produce The existing building hoisting cables have the following defects: the outer diameter of the combined cable is large, the required cable bending radius is large, and the channel size for installing the hoisting cables is large; the steel wire rope bearing unit is added, the overall weight increases, and the hoisting load is large; Intelligent control of online monitoring components, unable to monitor the operation of medium voltage cables

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