CN202839109U

CN202839109U - Three-core power cable

Info

Publication number: CN202839109U
Application number: CN 201220492611
Authority: CN
Inventors: 罗渐升; 周祺; 万晓峰
Original assignee: WUXI SHENGEN CABLE CO Ltd
Current assignee: WUXI SHENGEN CABLE CO Ltd
Priority date: 2012-09-25
Filing date: 2012-09-25
Publication date: 2013-03-27
Anticipated expiration: 2022-09-25

Abstract

The utility model relates to a three-core power cable, which comprises three conductors. A conductor shielding layer is arranged outside each conductor, insulating layers are arranged outside the conductor shielding layers, insulation shielding layers are arranged outside the insulating layers, copper strip shielding layers are arranged outside the insulation shielding layers, the copper strip shielding layers of the three conductors are arranged in an adjoining mode, a packing layer is arranged outside the copper strip shielding layers, a wrapping layer is arranged outside the packing layer, an inner sheath layer is arranged outside the wrapping layer, a steel wire armoring layer is arranged outside the inner sheath layer, and an outer sheath layer is arranged outside the steel wire armoring layer. The three-core power cable is good in shielding effect and flame-retarding effect, high in strength and suitable for long-distance erection.

Description

A kind of three core power cables

Technical field

The utility model relates to a kind of cable, is specifically related to a kind of power cable.

Background technology

Along with the fast development of national economy, as the aortal electric wire of national economy, its consumption and the scope of application are increasing.In recent years, the industries such as power plant, transformer station, smelting and petrochemical industry, very big to the demand of cable.

The single-core power cables of existing market can not satisfy instructions for use at some special occasions, and structure is more single, and function is also fewer.And unreasonable owing to arranging between the conductor in some multicore cables, can exert an influence each other, the shielding texts is bad, and the packed layer materials in the multicore cable are general, result of use is undesirable.In addition, the bulk strength of cable is inadequate, when built on stilts the use, can not grow distance and set up.

Summary of the invention

Goal of the invention: the purpose of this utility model is in order to overcome deficiency of the prior art, a kind of three cores to be provided, and shield effectiveness is good, good flame retardation effect, and intensity is high, is suitable for three core power cables that long distance is set up.

Technical scheme: in order to solve the problems of the technologies described above, a kind of three core power cables described in the utility model, it comprises three conductors, outside every conductor, all be provided with conductor shield, outside described conductor shield, be provided with insulating barrier, outside described insulating barrier, be provided with insulation screen, outside described insulation screen, be provided with the copper strip shielding layer, the copper strip shielding layer of three conductors is near setting, outside described copper strip shielding layer, be provided with packed layer, outside described packed layer, be provided with lapping layer, outside described lapping layer, be provided with inner restrictive coating, outside described inner restrictive coating, be provided with the wire armoring layer, outside described wire armoring layer, be provided with external sheath layer.

Described conductor is copper conductor or aluminium conductor or tinned copper conductor.

Described packed layer is composite material of silicon carbide packed layer or asbestos packed layer.

Described lapping layer is the polyester belt lapping layer.

Described external sheath layer is pvc sheath layer or halogen-free and low-smoke flame-retardant polyolefin sheathed layer.

Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the arrangement of the utility model hierarchical structure is reasonable, adopt multilayer screen, improved shield effectiveness, packed layer adopts composite material to fill layer, can the Effective Raise filling effect, adopt the wire armoring layer, greatly improved bulk strength, external sheath layer adopts halogen-free and low-smoke flame-retardant polyolefin sheathed layer, has improved flame retardant effect.

Description of drawings

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

Wherein:

1, conductor; 2, conductor shield; 3, insulating barrier; 4, insulation screen; 5, copper strip shielding layer; 6, packed layer; 7, lapping layer; 8, inner restrictive coating; 9, wire armoring layer; 10, external sheath layer

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1, a kind of three core power cables described in the utility model, it comprises three conductors 1, outside every conductor 1, all be provided with conductor shield 2, outside described conductor shield 2, be provided with insulating barrier 3, outside described insulating barrier 3, be provided with insulation screen 4, outside described insulation screen 4, be provided with copper strip shielding layer 5, the copper strip shielding layer 5 of three conductors 1 is near setting, outside described copper strip shielding layer 5, be provided with packed layer 6, outside described packed layer 6, be provided with lapping layer 7, outside described lapping layer 7, be provided with inner restrictive coating 8, outside described inner restrictive coating 8, be provided with wire armoring layer 9, outside described wire armoring layer 9, be provided with external sheath layer 10; Described conductor 1 is copper conductor or aluminium conductor or tinned copper conductor; Described packed layer 6 is composite material of silicon carbide packed layer or asbestos packed layer; Described lapping layer 7 is the polyester belt lapping layer; Described external sheath layer 10 is pvc sheath layer or halogen-free and low-smoke flame-retardant polyolefin sheathed layer.The arrangement of the utility model hierarchical structure is reasonable, adopt multilayer screen, improved shield effectiveness, packed layer adopts composite material to fill layer, can the Effective Raise filling effect, adopt the wire armoring layer, greatly improved bulk strength, external sheath layer adopts halogen-free and low-smoke flame-retardant polyolefin sheathed layer, has improved flame retardant effect.

The utility model provides a kind of thinking and method; method and the approach of this technical scheme of specific implementation are a lot; the above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications; these improvements and modifications also should be considered as protection range of the present utility model, in the present embodiment not clear and definite each part all available prior art realized.

Claims

1. core power cable, it is characterized in that: it comprises three conductors (1), outside every conductor (1), all be provided with conductor shield (2), outside described conductor shield (2), be provided with insulating barrier (3), outside described insulating barrier (3), be provided with insulation screen (4), outside described insulation screen (4), be provided with copper strip shielding layer (5), the copper strip shielding layer (5) of three conductors (1) is near setting, outside described copper strip shielding layer (5), be provided with packed layer (6), outside described packed layer (6), be provided with lapping layer (7), outside described lapping layer (7), be provided with inner restrictive coating (8), outside described inner restrictive coating (8), be provided with wire armoring layer (9), outside described wire armoring layer (9), be provided with external sheath layer (10).

2. three core power cables according to claim 1, it is characterized in that: described conductor (1) is copper conductor or aluminium conductor or tinned copper conductor.

3. three core power cables according to claim 1, it is characterized in that: described packed layer (6) is composite material of silicon carbide packed layer or asbestos packed layer.

4. three core power cables according to claim 1, it is characterized in that: described lapping layer (7) is the polyester belt lapping layer.

5. three core power cables according to claim 1 is characterized in that: described external sheath layer (10) is pvc sheath layer or halogen-free and low-smoke flame-retardant polyolefin sheathed layer.