Fireproof flexible cable

Abstract

The invention belongs to the technical field of cables, and discloses a fireproof flexible cable. The fireproof flexible cable comprises an outer insulation sleeve, the inner wall of the outer insulation sleeve is sleeved with a protection layer, the inner side of the protection layer is sleeved with a buffer sleeve, four copper core stranded conductors are inserted in the buffer sleeve, and the four copper core stranded conductors are annularly arranged with the axis of the buffer sleeve as the reference. The copper core stranded conductor is sleeved with a protection sleeve. According to the fireproof flexible cable, the innovative communication design of the buffer cavity, the isolation cavity and the buffer bag is adopted, the flame-retardant oil is used as a pressure transfer medium, excellent bending resistance and fireproof performance are provided for the cable, the cable is not prone to breakage after being bent for a long time, and recovery of cable formation can be achieved through hydraulic pressure generated by the flame-retardant oil after use; the copper core stranded conductor is protected from being damaged, the increasing high requirement of the industry is met, and the problems proposed in the background technology are solved.

Description

technical field [0001] The present invention relates to the technical field of cables, in particular to a cable with fireproof flexibility. Background technique [0002] A cable is a power or signal transmission device, usually composed of several or several groups of wires. As the demand increases, the requirements for the cable are getting higher and higher. meet demand. [0003] Fireproof cables are being recognized by more and more users for their excellent fire resistance, environmental protection and other advantages, and fireproof branch cables are a new type of cables derived from fireproof cables. At present, fireproof cables have been gradually applied in the basic In industrial and civil buildings, fireproof cables are divided into two types: rigid cables and flexible cables. Fireproof cables are not much different from ordinary cables. Usually, a flexible layer is added to the outside of ordinary cables to achieve the bending performance of fireproof cables. Wi...

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Problems solved by technology

[0003] Fireproof cables are being recognized by more and more users for their excellent fire resistance and environmental protection, and fireproof branch cables are a new type of cable derived from fireproof cables. At present, fireproof cables have been gradually applied in basic In industrial and civil buildings, fireproof cables are divided into two types: rigid cables and flexible cables. Fireproof cables are not much different from ordinary cables. Usually, a flexible layer is added to the outside of ordinary cables to achieve the bending performance of fireproof cables. With the development of society, this design has been difficult to meet the demand, the performance provided by the simple flexible layer is limited, and the cable is easy to be damaged in harsh usage scenarios, so we propose a fire-resistant flexible cable to meet the growing demand for use

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