A kind of three-hole fluoroplastic polymer heat-resistant fireproof cable
technical field:
The utility model relates to cable, relates in particular to a kind of three-hole fluoroplastic polymer heat-resistant fireproof cable.
background technology:
Traditional fluoroplastic cable is owing to existing corona resistance not good, and because fluoroplastics hardness is high, resistance to wear is not strong, has stress cracking phenomenon, and in addition, the conductor of cable is in the time being subject to ambient pressure, and extruding is easily impaired mutually, and therefore useful life is not long.
utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of three-hole fluoroplastic polymer heat-resistant fireproof cable, has improved the mechanical performance of cable, has extended useful life.
The technical solution of the utility model is as follows:
Three-hole fluoroplastic polymer heat-resistant fireproof cable, comprise three conductors, it is characterized in that: three described conductors are coated respectively fluoroplastic polymer insulating barrier outward and form insulated wire cores, between insulated wire cores, be provided with the isolating pad that cross section is Y shape, in isolating pad, be provided with the support belt of Y shape, described insulated wire cores and isolating pad form cable core jointly, cable core is coated with Teflon turning film strip and nylon tape weaves webbed coating layer, and coating layer outside is provided with screen, separator, fluoroplastic polymer restrictive coating successively.
Described three-hole fluoroplastic polymer heat-resistant fireproof cable, is characterized in that: Teflon turning film strip and the nylon tape count of described coating layer are not less than 80%.
The utility model has the advantages that:
The utility model structural design novelty, selects fluoroplastic polymer insulating barrier and restrictive coating, by isolating pad, insulated wire cores is kept apart, in isolating pad, be designed with support belt structure, improved the mechanical performance of cable, the design of coating layer guarantees structural compactness, increases the service life.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
embodiment:
Referring to Fig. 1:
Three-hole fluoroplastic polymer heat-resistant fireproof cable, comprise three conductors 1, three outer coated fluoroplastic polymer insulating barriers 2 respectively of conductor 1 form insulated wire cores, between insulated wire cores, being provided with cross section is the isolating pad 3 of Y shape, in isolating pad 3, be provided with the support belt 4 of Y shape, the common formation cable core of insulated wire cores and isolating pad 3, cable core is coated with Teflon turning film strip and nylon tape weaves webbed coating layer 5, and coating layer 5 outsides are provided with screen 6, separator 7, fluoroplastic polymer restrictive coating 8 successively.
Teflon turning film strip and the nylon tape count of coating layer 5 are not less than 80%, have improved construction of cable compactedness, extend the useful life of cable.
In addition, between cable core and coating layer 5, be also provided with the packed layer 9 that heat-resistant fireproof material forms.