A Thermal Lodging Type Low Aging Speed ​​Cable

Abstract

The invention discloses a thermal lodging type low aging speed cable, which belongs to the field of electric cables. The thermal lodging type low aging speed cable has an independent heat insulation ring formed by opposing heat shields in the outer protective layer at low temperature. layer, which can effectively prevent the external low temperature from being transmitted to the inside of the core layer, and at the same time, the self-lodging rod does not contact the surface of the wall-attached heat insulation layer, which effectively reduces the heat exchange between the inside and outside of the cable, thereby effectively ensuring that the cable is not easy to be frostbitten at low temperature, and is not easy to be frostbitten at high temperature. When the heat shield is stretched, the double-ended embedded heat-conducting rod can connect the sheath layer and the wall-attached heat-insulating layer, so that the heat generated by the cable can be dissipated continuously from the inside to the outside, and at the same time, it can be dissipated from the lodging rod Lodging and attaching to the surface of the heat insulation layer, effectively improving the heat dissipation of the cable, so that the cable can automatically adjust its own heat dissipation and heat insulation performance under different operating temperatures, thereby significantly reducing the aging speed and prolonging the use life and reduce potential safety hazards.

Description

technical field [0001] The invention relates to the field of cables, in particular to a thermal-lodging low-aging-speed cable. Background technique [0002] Cables are usually composed of several wires or groups of wires. Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mine cables, aluminum Alloy cables and more. They are all composed of single or multi-strand wires and insulation layers, and are used to connect circuits, electrical appliances, etc. [0003] The cable is usually provided with a sheath, and the use of a cable protection sleeve to protect the cable can achieve the following advantages: 1. Good corrosion resistance, long service life, and can be used in humid saline-alkaline areas. 2. Flame retardant and heat resistant, it can be used for a long time at a high temperature of 130 degrees without deformation, and it w...

AI Technical Summary

Problems solved by technology

[0004] For some cables used outdoors, in order to adapt to the use environment with large temperature changes, many different cables have been developed in the prior art, such as freeze-resistant cables, flame-retardant cables, etc., but they lack the ability to automatically adjust heat dissipation in different use environments. Due to the long-term use of the cable, the cable will continue to pass through the alternating environment of high temperature and low temperature, the aging speed will be accelerated, and the service life will be reduced, resulting in a greater safety hazard when the service life is approaching.

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