Highly waterproof fireproof power cable

Abstract

The invention discloses a highly waterproof fireproof power cable. The highly waterproof fireproof power cable includes a cable core which is formed by parallelly intertwisting a plurality of insulated wire cores, a gap of the cable core is filled with a water-blocking rope and rounded, a water-blocking tape of an irregular shape whose centers of four sides are recessed inwards is extruded outside the cable core, four edges of the water-blocking tape of the irregular shape wrap the insulated wire cores, the water-blocking tape is longitudinally wrapped by an aluminum-plastic tape waterproof layer, a gap between the water-blocking tape and the aluminum-plastic tape waterproof layer is provided with a water-tolerant tree-shaped polyethylene extruded waterproof layer, and a water-tolerant tree-shaped polyethylene extruded waterproof layer, a ceramic silica gel fire insulation layer and a high-flame-retardant halogen-free low-smoke flame-retardant polyolefin sheath are extruded outside the aluminum-plastic tape waterproof layer in sequence. The cable has excellent high waterproof fireproof characteristics and the like, can be widely applied to places having waterproof flame-retardant fire-resistant requirements such as a power plant, a hydropower station, a transformer station and a high-rise building, and product performance is excellent.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a high waterproof and fireproof power cable. Background technique [0002] In recent years, among power system accidents worldwide, the proportion of power supply interruptions caused by fire or flooding of power cables has been on the rise. Therefore, it is increasingly important to use high waterproof and fireproof cables to ensure uninterrupted power supply of important circuits in power plants, substations, hydropower stations and other places where there are a large number of electrical equipment and a large number of cables are densely laid. With the continuous increase of high-rise buildings and the complexity of the on-site environment in the event of a fire, it brings great difficulty to the rescue of the on-site fire, which requires the supply of on-site power lines to have a longer time. Because of the need for fire fighting, there will also be a large amount of stagna...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the existing technology, a high waterproof and fireproof power cable is provided, which solves the problem of poor waterproof and fireproof effect of the existing cables, and can be widely used in power plants, hydropower stations, substations and high-rise buildings, etc. The place where the fire resistance is required, the product performance is excellent

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