CN201374205Y - Special cable for mining transducer - Google Patents

Abstract

The utility model discloses a special cable for a mining transducer, which aims at providing a special cable for a mining transducer which can save the manufacturing cost, reduce the strength of the electric field and the density of the magnetic flux surrounding the cable and protect the health of the human body, and consists of three power-wire core conductors (1), three ground-wire core conductors (6), an overall shielding layer (7) and a jacket (8), wherein the power-wire core conductors (1) are provided with an insulation layer (2) and a metal shielding layer (3), the ground-wire core conductors (6) are provided with a semi-conduction layer (5), stuffing (4) is arranged among the power-wire core conductors (1) and the ground-wire core conductors (6), the power-wire core conductors, the ground-wire core conductors and the stuffing are wrapped by the overall shielding layer (7), an inner jacket (8) and an outer jacket (10) are arranged outside the overall shielding layer (7), and a braided layer (9) is arranged between the inner and the outer jackets. The special cable for the mining transducer is mainly applied to the mining transducer or the coal mining machine and similar devices.

Description

The mine-used frequency-converter private cable

Technical field

The utility model relates to a kind of mine-used frequency-converter private cable.

Background technology

At present, frequency converter employed cable in colliery is the common mining cable of quadrature arrangement mostly, its finished product external diameter is bigger, the waste raw material, can not suppress the interference of surge voltage that frequency converter produces at work and ultraharmonics near electrical equipment, electric field strength and magnetic density are higher around the cable, and the health of speaking sarcastically is arranged.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of finished product external diameter less; save manufacturing cost; can reduce mine-used frequency-converter at work; the interference that surge voltage that produces and ultraharmonics use near electrical equipment; can also reduce cable electric field strength and magnetic density on every side, the mine-used frequency-converter private cable of protection health.

The technical scheme that the utility model is taked is: it is made up of three power line core conductors, three ground wire core conductors, total screen and sheaths, on the power line core conductor, be provided with insulating barrier and metal screen layer, on the ground wire core conductor, be provided with semi-conductive layer, between power line core conductor and ground wire core conductor, be provided with filling, these three kinds of materials are by total screen parcel, be provided with inner sheath and oversheath outside total screen, braid is located between the two.

The beneficial effects of the utility model are as follows:

1, produced product external diameter is less, has saved raw material;

2, owing to adopted a plurality of screens, can reduce mine-used frequency-converter at work, the surge voltage of generation and ultraharmonics can reduce cable electric field strength and magnetic flux density on every side to the interference that near electrical equipment uses, and alleviate the infringement to health;

3, owing between inner sheath and oversheath, be provided with the intensity that braid has strengthened cable, prolonged useful life.

Description of drawings

Accompanying drawing is a section structure schematic diagram of the present utility model.

Among the figure: power line core conductor 1, insulating barrier 2, metal screen layer 3, filling 4, semi-conductive layer 5, ground wire core conductor 6, total screen 7, inner sheath 8, braid 9, oversheath 10.

Embodiment

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

By accompanying drawing as can be known: the utility model is made up of three power line core conductors 1, three ground wire core conductors 6, total screen 7 and sheaths 8, on power line core conductor 1, be provided with insulating barrier 2 and metal screen layer 3, on ground wire core conductor 6, be provided with semi-conductive layer 5, between power line core conductor 1 and ground wire core conductor 6, be provided with and fill 4, these three kinds of materials are by total screen 7 parcels, be provided with inner sheath 8 and oversheath 10 outside total screen 7, braid 9 is located between the two.

Manufacture craft of the present utility model and material are prior art.

Claims (1)

1. A kind of mine-used frequency-converter private cable, it is characterized in that: it is made up of three power line core conductors (1), three ground wire core conductors (6), total screen (7) and sheath (8), on power line core conductor (1), be provided with insulating barrier (2) and metal screen layer (3), on ground wire core conductor (6), be provided with semi-conductive layer (5), between power line core conductor (1) and ground wire core conductor (6), be provided with filling (4), these three kinds of materials are by total screen (7) parcel, be provided with inner sheath (8) and oversheath (10) outside total screen (7), braid (9) is located between the two.

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