At present, a considerable number of power cables are often set in various power facilities, especially in cable trays and shafts. At present, cables laid in these cable trays and shafts are exposed outside. Although the cables themselves are flame retardant cables, the flame retardant time is quite limited in case of fire, It can not prevent the direct baking combustion of high-temperature flame, and if the high temperature of about 1000 ℃ is produced due to short circuit, it will also cause combustion, which will lead to fire accidents. Moreover, toxic gas will be emitted when the cables are burning. According to the investigation, the toxic gas produced by the burning of cables and other objects in fire accidents is one of the important reasons for the casualties. Therefore, there is a need for a device that can prevent the power cable from burning due to high temperature in case of fire or short circuit, which can prevent the fire caused by the short circuit of the cable and the surrounding combustible materials from igniting the cable, and prevent the fire, so as to protect the safety of power facilities and improve the fire prevention ability of the building.

      The power cable can't cope with the problems of the fire caused by the short circuit of the cable and the ignition of the cable by the surrounding combustibles. The utility model relates to a flame-retardant and fireproof sleeve for the power cable. By installing the device on the power cable, the utility model obtains a higher flame-retardant and fireproof ability. The specific structure of the utility model is as follows: a flame-retardant and fireproof sleeve for the power cable, including a sleeve, a flame-retardant and fireproof sleeve, The utility model is characterized in that the sleeve is specifically a hollow semi cylindrical jacket with two semicircular openings;

      A fixed component is arranged at the joint of the semi cylindrical jacket. The semi cylindrical jacket of the utility model is made of a variety of non combustible materials through scientific deployment and pressing, and has the advantages of good flame retardant performance, non combustion time of more than 3 hours in case of fire, high mechanical strength, non explosion, water and oil resistance, strong chemical corrosion resistance, non-toxic and other characteristics, and the best flame temperature reaches 1000 ℃ ° All the indexes meet the requirements of GA161-1997, and the combustion performance meets the class A (incombustibility) standard of GB8624.