CN202473377U

CN202473377U - Polyvinyl chloride (PVC) insulated, steel wire armored and polyethylene (PE) sheathed power cable

Info

Publication number: CN202473377U
Application number: CN2012200720102U
Authority: CN
Inventors: 胡建亚
Original assignee: Jiangsu Yafei Wire & Cable Co Ltd
Current assignee: Jiangsu Yafei Wire & Cable Co Ltd
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-10-03
Anticipated expiration: 2022-02-28

Abstract

The utility model relates to a PVC insulated, steel wire armored and PE sheathed power cable which comprises at least two metal conductors; a PVC insulated layer is covered outside each of the metal conductors; a PE outer sheathed layer is covered outside the PVC insulated layer; a PE inner sheathed layer is arranged between the PVC insulated layer and the PE outer sheathed layer; and wire armoring is formed between the PE inner sheathed layer and the PE outer sheathed layer. The cable has high insulation reliability and a good flame retardant effect, can prevent destroy caused by animals and plants and enhance the wear-resisting property, is laid indoors, in tunnels, cable ducts and shafts or the ground, and can bear mechanical external force and certain tension.

Description

Polyvinyl chloride insulation wire armoring pe sheath power cable

Technical field

The utility model relates to the technical field of power cable, especially a kind of polyvinyl chloride insulation wire armoring pe sheath power cable.

Background technology

The current capacity of cable is relevant with the sectional area of conductor thread core usually; Conductor temperature is raise; The temperature of the outer insulating barrier that coats of conductor surpasses the last change that can cause on the insulating barrier generation performance in limited time; Thereby the insulating reliability of insulating barrier is reduced greatly, influence the useful life of cable.

Existing common cable exists structural stability difference and incendive problem, so the fire-retardant problem of the lsafety level of electric wiring and cable more and more causes people's attention.

Even if cable has good heat resistance simultaneously, in the higher occasion of fail safe, but can not prevent vegeto-animal destruction, also possibly bring big indirect loss to power supply.The cable occasions such as monitoring loop and protection circuit that are laid in, in indoor, tunnel, cable trough, but present cable generally can not bear pulling force and mechanical external force effect, makes cable laying after these occasions, can have certain potential safety hazard more.

The utility model content

The technical problem that the utility model will solve is: in order to solve the problem that proposes in the above-mentioned background technology; The utility model provides a kind of polyvinyl chloride insulation wire armoring pe sheath power cable; Its insulating reliability is big, and good flame retardation effect can be prevented vegeto-animal destruction and strengthened anti-wear performance; Can bear mechanical external force and certain pulling force, enlarge its scope of application.

The utility model solves the technical scheme that its technical problem adopted: a kind of polyvinyl chloride insulation wire armoring pe sheath power cable; It comprises at least two metallic conductors; Each metallic conductor is coated with the polyvinyl chloride insulation layer; The polyvinyl chloride insulation layer is coated with the polyethylene external sheath layer, is provided with the polyethylene inner restrictive coating between polyvinyl chloride insulation layer and the polyethylene external sheath layer, is provided with wire armoring between polyethylene inner restrictive coating and the polyethylene external sheath layer.

Further: the cross section of each metallic conductor is circle or fan-like pattern.

Further: each metallic conductor is copper core or aluminium core.

Further: metallic conductor is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2.

Further: be equipped with packed layer between the outer polyvinyl chloride insulation layer that coats of polyethylene inner restrictive coating and each metallic conductor and between the outer polyvinyl chloride insulation layer that coats of each metallic conductor.

The beneficial effect of the utility model: each metallic conductor is coated with the polyvinyl chloride insulation layer in the cable of the utility model, and under rated voltage 0.6/1kV condition of power supply, the insulating reliability of polyvinyl chloride insulation layer is big; The polyvinyl chloride insulation layer is coated with the polyethylene external sheath layer, is provided with the polyethylene inner restrictive coating between polyvinyl chloride insulation layer and the polyethylene external sheath layer, the good flame retardation effect of polyethylene external sheath layer and polyethylene inner restrictive coating; Be provided with wire armoring between polyethylene inner restrictive coating and the polyethylene external sheath layer; Wire armoring can prevent vegeto-animal destruction and strengthen anti-wear performance; Prolonged the useful life of cable; Be used for indoor, tunnel, cable trough, vertical shaft or buried-pipe laying etc., can bear mechanical external force and certain pulling force, the scope of application is extensive.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the cross section structure sketch map of the utility model embodiment one;

Fig. 2 is the cross section structure sketch map of the utility model embodiment two;

Fig. 3 is the cross section structure sketch map of the utility model embodiment three;

Fig. 4 is the cross section structure sketch map of the utility model embodiment four;

Fig. 5 is the cross section structure sketch map of the utility model embodiment five;

Fig. 6 is the cross section structure sketch map of the utility model embodiment six;

Fig. 7 is the cross section structure sketch map of the utility model embodiment seven;

Fig. 8 is the cross section structure sketch map of the utility model embodiment eight;

Fig. 9 is the cross section structure sketch map of the utility model embodiment nine;

Figure 10 is the cross section structure sketch map of the utility model embodiment ten;

Figure 11 is the cross section structure sketch map of the utility model embodiment 11.

Among the figure 1, metallic conductor, 2, the polyvinyl chloride insulation layer, 4, the polyethylene external sheath layer, 5, packed layer, 7, the polyethylene inner restrictive coating, 8, wire armoring.

Embodiment

Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Polyvinyl chloride insulation wire armoring pe sheath power cable like the utility model of Fig. 1～shown in Figure 11; It comprises at least two metallic conductors 1, and each metallic conductor 1 is coated with polyvinyl chloride insulation layer 2, and the insulating reliability of polyvinyl chloride insulation layer 2 is big; Polyvinyl chloride insulation layer 2 is coated with polyethylene external sheath layer 4; Be provided with polyethylene inner restrictive coating 7 between polyvinyl chloride insulation layer 2 and the polyethylene external sheath layer 4, the good flame retardation effect of polyethylene external sheath layer 4 and polyethylene inner restrictive coating 7 is provided with wire armoring 8 between polyethylene inner restrictive coating 7 and the polyethylene external sheath layer 4; Wire armoring 8 can prevent vegeto-animal destruction and strengthen anti-wear performance; Prolong the useful life of cable, can bear mechanical external force and certain pulling force, made the scope of application of cable enlarge.

The cross section of above-mentioned each metallic conductor 1 is circle or fan-like pattern; Each metallic conductor 1 is copper core or aluminium core; Metallic conductor 1 is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2; Be equipped with packed layer 5 between polyethylene inner restrictive coating 7 and each metallic conductor 1 outer polyvinyl chloride insulation layer 2 that coats and between each metallic conductor 1 outer polyvinyl chloride insulation layer 2 that coats.

Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment one as shown in Figure 1 are that 2 cross sections are circular structures; The utility model embodiment two as shown in Figure 2 be provided with packed layer 5 and metallic conductor 1 is 2 structures that the cross section is a fan-like pattern; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment three as shown in Figure 3 are that 3 cross sections are circular structures; The utility model embodiment four as shown in Figure 4 be provided with packed layer 5 and metallic conductor 1 is 3 structures that the cross section is a fan-like pattern; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment five as shown in Figure 5 are that 4 cross sections are circular structures; The utility model embodiment six as shown in Figure 6 be provided with packed layer 5 and metallic conductor 1 is 4 structures that the cross section is a fan-like pattern; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment seven as shown in Figure 7 is the structure of 3+1 cross section for circle; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment eight as shown in Figure 8 is 3+1, and wherein 3 cross sections are fan-like pattern, and 1 cross section be the structure of circle; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment nine as shown in Figure 9 are that 5 cross sections are circular structures; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment ten shown in figure 10 is the structure of 3+2 cross section for circle; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment 11 shown in figure 11 is the structure of 4+1 cross section for circle.

With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.

Claims

1. polyvinyl chloride insulation wire armoring pe sheath power cable; It is characterized in that: comprise at least two metallic conductors (1); Each metallic conductor (1) is coated with polyvinyl chloride insulation layer (2); Polyvinyl chloride insulation layer (2) is coated with polyethylene external sheath layer (4), is provided with polyethylene inner restrictive coating (7) between polyvinyl chloride insulation layer (2) and the polyethylene external sheath layer (4), is provided with wire armoring (8) between polyethylene inner restrictive coating (7) and the polyethylene external sheath layer (4).

2. polyvinyl chloride insulation wire armoring pe sheath power cable according to claim 1, it is characterized in that: the cross section of described each metallic conductor (1) is circle or fan-like pattern.

3. polyvinyl chloride insulation wire armoring pe sheath power cable according to claim 1 is characterized in that: described each metallic conductor (1) is copper core or aluminium core.

4. polyvinyl chloride insulation wire armoring pe sheath power cable according to claim 1 is characterized in that: described metallic conductor (1) is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2.

5. polyvinyl chloride insulation wire armoring pe sheath power cable according to claim 1 is characterized in that: be equipped with packed layer (5) between the outer polyvinyl chloride insulation layer (2) that coats of described polyethylene inner restrictive coating (7) and each metallic conductor (1) and between the outer polyvinyl chloride insulation layer (2) that coats of each metallic conductor (1).