Thermal-sensing material color-changing insulating sheath for power distribution equipment

Abstract

The invention relates to a thermal-sensing material color-changing insulating sheath for the power distribution equipment. A first temperature-sensing color-changing block and a second temperature-sensing color-changing block are arranged, the thermal-sensing material is used for assisting in manufacturing the insulating sheath of the corresponding specification and model, the insulating sheath is applied to power distribution equipment such as a transformer pile head and a line connector, and through the temperature-sensing color-changing characteristic of the thermal-sensing material, when the temperature of a wire clamp exceeds 80 DEG C, the insulating sheath changes color obviously and is irreversible, whether the temperature of the equipment wire clamp is abnormal or not can be effectively judged by observing the color change condition of the thermal-sensing material, hidden dangers can be found and processed in time, and the hidden dangers are prevented from being upgraded into defects to affect safe operation of lines and equipment; and the insulating sheath tube is sequentially provided with a heat-conducting insulating layer, a first protective layer and a second protective layer from inside to outside, the first protective layer is made of glass fibers, and the second protective layer is sequentially provided with a crosslinked polyethylene layer, a polyurethane film layer and a chlorosulfonated polyethylene layer from inside to outside, so, the insulating sheath has the advantages of high mechanical strength, strong weather resistance, excellent electrical insulating property and the like.

Description

technical field [0001] The invention relates to the technical field of supporting components of power transmission lines, in particular to a color-changing insulating sheath of heat-sensitive materials for power distribution equipment. Background technique [0002] The insulating protective cover for electrical equipment is formed by high-temperature molding of silicone rubber material, which has excellent electrical properties, aging resistance, high and low temperature resistance, and can be used under any conditions. The power equipment insulation protective sleeve is an insulation safety protection product that must be equipped with the terminals of power equipment such as transformers, lightning arresters, and outdoor switches. Or sundries overlap, wet flash salt spray and chemical gas corrosion caused by power outages, so as to avoid the resulting huge economic losses. [0003] At present, commonly used wiring sheaths such as distribution line joints and transformer p...

AI Technical Summary

Problems solved by technology

In the daily inspection process, it is impossible to intuitively find whether there is heat in the joints and pile heads. At present, it is mainly measured by infrared thermometers or thermal imagers. In daily work, the frequency of temperature measurement is relatively small, and it is impossible to timely grasp the transformer pile Whether the head is hot, so as to solve the heating defect of the equipment cable clamp in time

In the specific practice process, temperature measuring patches will also be pasted on the wiring sheaths of distribution line joints, transformer pile heads, etc. to assist inspection personnel to observe whether the joints and pile heads are heating, but the temperature measuring patches are easy to fall off and damaged, the use effect is not good

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