Fire-retardant fireproof self-temperature measuring low-voltage power cable

By embedding temperature sensors in the cable and using flame-retardant materials, the problem of difficult cable temperature monitoring has been solved, enabling real-time temperature monitoring and fire resistance, thus ensuring the safety and reliability of the cable.

CN114974717BActive Publication Date: 2026-04-24ZHEJIANG LIZHOU CABLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG LIZHOU CABLE
Filing Date
2022-06-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing cables are prone to a sharp rise in temperature after prolonged overload operation, and it is difficult to measure the temperature in real time in high-altitude, strong magnetic field and field environments, which can easily lead to power accidents.

Method used

The fire-retardant and self-temperature-measuring low-voltage power cable adopts a flame-retardant and fire-resistant design. By embedding a linear temperature sensor on the outside of the skeleton support assembly, the temperature semiconductor material is used to detect the temperature change of the cable. The temperature sensor is also embedded in a spiral groove on the outside of the outer sheath. Combined with the flame-retardant material design of the polyester film layer and polyolefin layer, the fire-retardant performance and temperature monitoring capability of the cable are enhanced.

Benefits of technology

It enables real-time monitoring and alarm of cable temperature, allowing for timely evacuation of people, accurate location of faults, prevention of fires, and improvement of the fire resistance and flame retardancy of cables and their safety in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of fire-retardant fireproof type self-temperature low-voltage power cable, including framework support component, the framework support component includes cross type rubber framework, slidingly connected with I-shaped slider on the free end of cross type rubber framework, rotationally connected with pressure rod between adjacent I-shaped slider, triangular region is formed between the pressure rod and cross type rubber framework, and power line core is equipped in triangular region, and the fire-retardant layer is polyester film layer or polyolefin layer.In the application, wire type temperature sensor is provided on the outer side of outer sheath, when the temperature of cable rises, heat is transferred into wire type temperature sensor, the temperature of temperature semiconductor material rises, resistance decreases, voltage variation signal appears in first electrode layer and second electrode layer, cable temperature change can be detected, when cable temperature is abnormal, early warning can be carried out, so as to evacuate crowd in time, and the position of abnormal cable can be accurately positioned, fault can be removed in time, and fire can be avoided.
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Citation Information

Patent Citations

  • Photovoltaic cable with temperature monitoring function and preparation method thereof

    CN113539568A

  • Fireproof cable for robot

    CN209822328U