Flat-shaped power cable connected through frame

Abstract

The invention discloses a flat-shaped power cable connected through a frame. The power cable comprises a plurality of lead wires which are arrayed side by side horizontally. Polyethylene insulation layers and low-smoke-zero-halogen flame retardant belt outer taped covering layers are wrapped outside the lead wires in sequence respectively. A flat-shaped structure inner protecting sleeve layer is wrapped outside all the low-smoke-zero-halogen flame retardant belt outer taped covering layers. The rubber frame is arranged in the inner protecting sleeve layer. Adjacent lead wires are connected together through the rubber frame. The inner portions of the low-smoke-zero-halogen flame retardant belt outer taped covering layers are filled with high-temperature-resistant fiber filaments. A flat-shaped structure copper belt shielding layer, an armor layer formed by steel wires which are twisted to form beams and a fluoroplastic outer protecting sleeve layer are wrapped outside the low-smoke-zero-halogen flame retardant belt outer taped covering layers in sequence. A fire-resistant mica layer is arranged between the copper belt shielding layer and the armor layer. The structure improvement is simple and practical, the whole pressure-resisting mechanical performance is improved, meanwhile, an inflaming-retarding fire-resistant structure layer is arranged, and practicability is good.

Description

technical field [0001] The invention relates to a cable, mainly a frame-connected flat power cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. They are often used in urban underground power grids, outgoing lines of power stations, and internal power supply of industrial and mining enterprises. Most of the existing power cables are circular structures, and the overall compressive mechanical properties are poor. , easy to deform; but while maintaining the overall mechanical properties of the power cable, it is also necessary to pay attention to the flame retardancy and fire resistance of the power cable. The insulation and sheath materials used in the current cables have poor toughness, brittleness and cracking, which affect the performance of the cables. [0003] The insulation and sheath materials used in the current cables have poor toughness, brittleness and cracking, which affect the performance of the cables. ...

AI Technical Summary

Problems solved by technology

[0002] Power cables are cables used to transmit and distribute electric energy. They are often used in urban underground power grids, outgoing lines of power stations, and internal power supply of industrial and mining enterprises. Most of the existing power cables are circular structures, and the overall compressive mechanical properties are poor. , easy to deform; but while maintaining the overall mechanical properties of the power cable, it is also necessary to pay attention to the flame retardancy and fire resistance of the power cable

The insulation and sheath materials used in the current cables have poor toughness and brittle cracks, which affect the performance of the cables

[0003] The insulation and sheath materials used in the current cables have poor toughness and brittle cracks, which affect the performance of the cables

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