Thermal lodging type low-aging-speed cable

Abstract

The invention discloses a thermal lodging type cable with a low aging speed, and belongs to the fields of cable. According to the thermal lodging type low-aging-speed cable, at a low temperature, opposite heat insulation sheets form a circle of independent heat insulation layer in an outer protection layer so as to effectively avoid external low temperature from being conducted into a wire core layer while a self-lodging rod is not in contact with the surface of the wall-attached heat insulation layer so as to effectively reduce heat exchange inside and outside the cable, so that the cable iseffectively prevented from being frostbitten at a low temperature; at a high temperature, the opposite heat insulation sheets are propped open after being heated, and a double-end embedded heat conduction rod can be communicated with a sheath layer and the wall-attached heat insulation layer so as to continuously dissipate the heat generated by the cable from inside to outside while the self-lodging rod falls down and is attached to the surface of the wall-attached heat insulation layer, so that the heat dissipation performance of the cable is effectively improved; and the heat dissipation andheat insulation performance of the cable can be automatically adjusted at different use temperatures, so that the aging speed is remarkably reduced, the service life is prolonged, and potential safety hazards are reduced.

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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