CN203491003U

CN203491003U - Major loop power cable for frequency converter

Info

Publication number: CN203491003U
Application number: CN201320520874.0U
Authority: CN
Inventors: 王辅斌
Original assignee: ANHUI HANGTIAN CABLE GROUP Co Ltd
Current assignee: ANHUI HANGTIAN CABLE GROUP Co Ltd
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-03-19
Anticipated expiration: 2023-08-26

Abstract

The utility model discloses a major loop power cable for a frequency converter. The power cable is composed of aluminum conductors, inner insulating layers, a filling layer, a shielding layer, copper conductors, an outer insulating layer and a sheath. The inner insulating layers wrap the outsides of the aluminum conductors to form three cable cores, the filling layer wraps the outsides of the three cable cores, the shielding layer wraps the outside of the filling layer, and a plurality of copper conductors are extruded in the shielding layer uniformly. The major loop power cable for the frequency converter has excellent electromagnetic compatibility, aging resistance and oil resistance, and good damp-proof and waterproof functions; and the dielectric strength of the cable can be stabilized, and the service life of the cable can be extended in a safe and reliable way.

Description

A kind of main-loop power cable for frequency changer

Technical field

The utility model relates to field of cables, relates in particular to a kind of main-loop power cable for frequency changer.

Background technology

At present, along with socioeconomic development, electric wire consumption increases rapidly, the quality requirement of cable is also constantly improved, such as the cable using in the fields such as iron and steel, chemical industry, power plant, papermaking, to the electromagnetic compatibility of cable, resistance to ag(e)ing, oil resistance and to keep off the requirement of damp water-proof function aspect all high especially.

Utility model content

In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of good electromagnetic compatibility that has, the main-loop power cable for frequency changer that extends the useful life of cable.

The utility model takes following technical scheme to realize: a kind of main-loop power cable for frequency changer, it is comprised of aluminium conductor, inner insulating layer, packed layer, screen, copper conductor, external insulation layer and sheath, described aluminium conductor is wrapped with inner insulating layer and forms three groups of cable cores, three groups of cable cores are wrapped with one deck packed layer, described packed layer outer wrapping one deck screen, is evenly extruded with many copper conductors in described screen.

In described restrictive coating, be furnished with a copper wire drainage thread.

The utlity model has in sum following beneficial effect: the utlity model has good electromagnetic compatibility, resistance to ag(e)ing and oil resistance; also there is good gear tide water-proof function; can protect cable insulation intensity stabilization, the useful life of safe and reliable prolongation cable.

Accompanying drawing explanation

Fig. 1 is the utility model cross-sectional structure schematic diagram;

Wherein: 1, aluminium conductor; 2, inner insulating layer; 3, packed layer; 4, screen; 5, copper conductor; 6, external insulation layer; 7, sheath; 8, copper wire drainage thread.

Embodiment

As shown in Figure 1, a kind of main-loop power cable for frequency changer, it is comprised of aluminium conductor 1, inner insulating layer 2, packed layer 3, screen 4, copper conductor 5, external insulation layer 6 and sheath 7, aluminium conductor 1 is wrapped with inner insulating layer 2 and forms three groups of cable cores, three groups of cable cores are wrapped with one deck packed layer 3, packed layer 3 outer wrapping one deck screens 4, the interior many copper conductors 5 that are evenly extruded with of screen 4.

In 7 layers of sheaths, be furnished with a copper wire drainage thread 8.

The above is embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model application range therefore all changes or modifies, and is included in the utility model patent claim.

Claims

1. a main-loop power cable for frequency changer, it is comprised of aluminium conductor, inner insulating layer, packed layer, screen, copper conductor, external insulation layer and sheath, it is characterized in that: described aluminium conductor is wrapped with inner insulating layer and forms three groups of cable cores, three groups of cable cores are wrapped with one deck packed layer, described packed layer outer wrapping one deck screen, is evenly extruded with many copper conductors in described screen.

2. main-loop power cable for frequency changer according to claim 1, is characterized in that: in described restrictive coating, be furnished with a copper wire drainage thread.