High-strength insulated power cable

Abstract

The invention discloses a high-strength insulated power cable which comprises a polyethylene insulating filling core, three hole grooves which are tightly connected with each other are formed in the insulating filling core, an aluminum alloy conductor is arranged in each hole groove, a binding belt is wound outside the polyethylene insulatiing filling core, an inorganic heat-insulating fireproof layer is extruded outside the binding belt, a barium titanate thin film is attached outside the inorganic heat-insulating fireproof layer, the carbon-plated polyester fiber cloth wraps the surface of the barium titanate thin film, a flame-retardant corrugated composite paperboard is arranged outside the polyester fiber cloth, and a wrinkle aluminum sheath is arranged outside the flame-retardant corrugated composite paperboard. The method has the characteristics of low smoke, no toxicity, no halogen and flame retardancy; the electromagnetic interference is resisted when the mechanical external force is borne, the cost is low, and the performance index is good.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a high-strength insulated power cable. Background technique [0002] Fire refers to the disaster caused by burning out of control in time and space. Among various disasters, fire is one of the main disasters that most frequently and commonly threaten public safety and social development. [0003] With the continuous development of society, while the social wealth is increasing, the risk of fire is also increasing, and the danger of fire is also increasing. [0004] In order to save more lives, property and information from the ruthless fire scene, the application of fire-resistant cables has become the top priority, and the fire-resistant cables currently on the market can be divided into rigid and flexible according to their structural characteristics. Due to the defects of rigid mineral insulated cables (Mineral Insulated Cable) in terms of reliability, production and laying, ...

AI Technical Summary

Problems solved by technology

Generally, the metal sheath of the cable is made of copper, the process is more complicated, the efficiency is low, and the cost is high. The isolation layer is often made of a material with a lower heating temperature, which cannot form isolation, so that the insulation material will be damaged by heat, which often leads to cable short circuit and other phenomena.

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