Halogen-free and flame-proof insulating power cable employing polytetrafluoroethylene composite material

Abstract

The invention provides a halogen-free and flame-proof insulating power cable. The halogen-free and flame-proof insulating power cable is that insulating cable cores are of a 3+2 structure and comprises a copper conducting core formed by stranding soft copper wires, and a covered insulating layer; halogen-free and flame-proof filling materials fill between the insulating cable cores and are wrapped through a water blocking tape; a composite belt is arranged at the outside of the water blocking tape; a shielding layer is arranged at the outside of the composite belt; an external halogen-free and flame-proof protecting sleeve is arranged at the outside of the shielding layer; the halogen-free and flame-proof filling materials and the external halogen-free and flame-proof protecting sleeve are prepared from polytetrafluoroethylene composite materials. According to the halogen-free and flame-proof insulating power cable, the water blocking tape, the outer protecting sleeve layer and the like are used as the waterproof parts; meanwhile, the internal filled material is high polymer material added with termite / rat repellents; therefore, the cable is resistant to water and termite and rat, and as a result, the use safety of the cable can be improved.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant insulated power cable, in particular to a power cable using a polytetrafluoroethylene composite material as a halogen-free flame-retardant filling material and a halogen-free flame-retardant outer sheath layer. Background technique [0002] With the continuous and rapid growth of my country's economy, it has provided a huge market prospect for the development of the cable industry. The strong temptation of the Chinese market has made the world focus on the Chinese market. In the short decades of reform and opening up, China The huge production capacity formed by the cable manufacturing industry has impressed the world. With the continuous expansion of industries such as electric power, communications, rail transit, automobiles, and shipbuilding, the demand for wires and cables is also growing rapidly. It can be predicted that the wires and cables industry will have huge development potential in the...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a halogen-free flame-retardant insulated power cable for the above-mentioned deficiencies in the prior art. The power cable with flame-retardant outer sheath can solve the problems of safety, reliability and low service life, and can effectively prevent the power cable from being damaged by rats and ants after laying

Images