CN203966656U

CN203966656U - A kind of PVC insulated power cable

Info

Publication number: CN203966656U
Application number: CN201420349125.0U
Authority: CN
Inventors: 蒋军熙; 卫宇
Original assignee: Jiangsu Kai Da Cable Co Ltd
Current assignee: Jiangsu Kai Da Cable Co Ltd
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2014-11-26
Anticipated expiration: 2024-06-27

Abstract

The utility model discloses a kind of PVC insulated power cable, comprise by many insulated wire cores and a stranded cable core forming of strengthening core that is positioned at each insulated wire cores center, the gap of cable core is provided with packed layer, cable core is outside equipped with foam liner layer, foam liner layer extrudes metal armouring layer outward, and cable core outermost layer extrudes oversheath; Described insulated wire cores consists of conductor and the insulating barrier that is extruded in outside conductor; The polychloroethylene insulation material layer that described insulating barrier is identical by four layer materials, thickness is different forms.Of the present utility model have a very strong tensile strength, and fire resistance is good, security performance is good, shielding is good, anti-interference is good, the features such as long service life.

Description

A kind of PVC insulated power cable

Technical field

The utility model relates to electric wire field, especially a kind of PVC insulated power cable.

Background technology

At present, along with coal mine machinery, automaticity improve constantly, Electrical Control Technology has very important meaning in coal production.Special due to subsurface environment; cable core and polyvinyl chloride oversheath that the control cables that underground mine use lays in fixed-site and controls, the control signal of monitoring loop and protection circuit connects mainly consists of polyvinyl chloride insulation single line form; but Coal Electricity cable is because circumstance complication, the condition of work of use are severe and mobile frequent; useful life is not long; the region of methane accumulation is very dangerous again; therefore not only very high to the security requirement of cable own, and very high to the resistance to wear of frequent moving field all-in-one cable, anti-external tensile force performance requirement.

In view of above situation, need to improve conventional mining cable structure, not only to keep good fire resistance, and to there is wear-resisting, the resistance to performance of drawing that adapts to frequent mobile occasion, guarantee the cable safety and reliability that severe occasion is used in colliery, effectively extend the useful life of mining cable, reduce mining development cost.

Utility model content

The utility model provides a kind of very strong tensile strength that has in order to solve the deficiencies in the prior art, and fire resistance is good, security performance is good, shielding is good, anti-interference is good, the PVC insulated power cable of long service life.

For solving above technical problem, a kind of PVC insulated power cable described in the utility model, comprise by many insulated wire cores and a stranded cable core forming of strengthening core that is positioned at each insulated wire cores center, the gap of cable core is provided with packed layer, cable core is outside equipped with foam liner layer, foam liner layer extrudes metal armouring layer outward, and cable core outermost layer extrudes oversheath; Described insulated wire cores consists of conductor and the insulating barrier that is extruded in outside conductor; The polychloroethylene insulation material layer that described insulating barrier is identical by four layer materials, thickness is different forms.

Further improve, described insulating barrier is followed successively by the polychloroethylene insulation material layer that thickness is 1-1.5mm, 1.8-2.5mm, 3-3.5mm and 0.5-1mm from inside to outside.

Further improve, described metal armouring layer is copper strips.

The utility model beneficial effect is:

Compared with prior art, main improvement of the present utility model is: insulating barrier has adopted new structure, from original one deck structure, become four-layer structure, adopt the polychloroethylene insulation material that four layer materials are identical, thickness is different to form, insulation, fire resistance have been increased, security performance, with respect to original 3-4 doubly; In addition, at the center of insulated wire cores, be provided with a strengthening core, increased the intensity of cable; The utility model is provided with metal armouring layer, has strengthened shielding and the anti-interference of cable.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of insulating barrier of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, a kind of PVC insulated power cable described in the utility model, comprise by many insulated wire cores and a stranded cable core forming of strengthening core 3 that is positioned at each insulated wire cores center, the gap of cable core is provided with packed layer 4, cable core is outside equipped with foam liner layer 5, foam liner layer 5 is outer extrudes metal armouring layer 6, and cable core outermost layer extrudes oversheath 7; Described insulated wire cores consists of conductor 1 and the insulating barrier 2 that is extruded in outside conductor 1; The described polychloroethylene insulation material layer that insulating barrier 2 is identical by four layer materials, thickness is different forms.

Described insulating barrier 2 is followed successively by the polychloroethylene insulation material layer that thickness is 1-1.5mm, 1.8-2.5mm, 3-3.5mm and 0.5-1mm from inside to outside.

Described metal armouring layer 6 is copper strips.

Above-mentioned is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement and adjustment, these improvement and adjustment also should be considered as protection range of the present utility model.

Claims

1. a PVC insulated power cable, it is characterized in that: comprise by many insulated wire cores and a stranded cable core forming of strengthening core (3) that is positioned at each insulated wire cores center, the gap of cable core is provided with packed layer (4), cable core is outside equipped with foam liner layer (5), foam liner layer (5) is outer extrudes metal armouring layer (6), and cable core outermost layer extrudes oversheath (7); Described insulated wire cores is by conductor (1) and be extruded in outer insulating barrier (2) formation of conductor (1); The polychloroethylene insulation material layer that described insulating barrier (2) is identical by four layer materials, thickness is different forms.

2. PVC insulated power cable according to claim 1, described insulating barrier (2) is followed successively by the polychloroethylene insulation material layer that thickness is 1-1.5mm, 1.8-2.5mm, 3-3.5mm and 0.5-1mm from inside to outside.

3. PVC insulated power cable according to claim 1, described metal armouring layer (6) is copper strips.