CN206921507U

CN206921507U - A kind of frequency-conversion power cable

Info

Publication number: CN206921507U
Application number: CN201720740945.6U
Authority: CN
Inventors: 吕国武
Original assignee: JIANGSU HUAYA CABLE CO Ltd
Current assignee: JIANGSU HUAYA CABLE CO Ltd
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2018-01-23
Anticipated expiration: 2027-06-23

Abstract

A kind of frequency-conversion power cable described in the utility model, including cable core, described cable core are twisted by more master cores；It is corresponding in the cable core around more master cores to be provided with and master core quantity identical temperature measuring equipment, in the gap filling glass silk fiber packed layer of cable core, wrapped glass fiber tape, vertical bag metal tape and the oversheath for extruding low smoke and zero halogen A level fire proofings successively outside cable core；Described temperature measuring equipment includes positive pole and negative pole, the Co-knit shielding layer of copper wires outside positive pole and negative pole, low smoke and zero halogen A level fire proofing restrictive coatings is extruded outside shielding layer of copper wires；Described positive pole is made up of nickel chromium triangle and the red insulating barrier being extruded in outside nickel chromium triangle, and negative pole is made up of nisiloy and the brown insulating barrier being extruded in outside nisiloy.This cable has stronger proof voltage impact, is amenable at a high speed the frequently impact of variable-frequency pulse voltage, temperature monitoring, blocks water, prevents fires and the characteristic such as low-smoke non-halogen flame-retardant.

Description

A kind of frequency-conversion power cable

Technical field

Power cable field is the utility model is related to, specifically a kind of frequency-conversion power cable.

Background technology

In recent years, the demand of frequency control motor is increasing, because variable-frequency motor has the advantages of more, as equipment is thrown Rate are few, simple in construction, and small volume, cost is low, and energy-conservation, speed adjustable range is big, have invariable power, the characteristic of permanent rotating speed, use It is convenient, capacity is big etc..Therefore it is used widely in industrial aspects such as metallurgy, mine, railways, household electrical appliance are also big in addition Amount applies frequency control motor, and this is allowed for, and matched frequency-conversion power cable is in great demand, however, present frequency conversion electric power Cable can not gradually adapt to the demand of frequency control motor in performance, and particularly proof voltage impact property is relatively low, quality It is in urgent need to be improved.

Utility model content

The utility model cable solve technical problem be to provide it is a kind of there is stronger proof voltage impact, be amenable to height The frequency-conversion power cable of the fast frequently impact of variable-frequency pulse voltage, cable have temperature survey, low smoke and zero halogen, the spy of high fire-retardance Property.

A kind of frequency-conversion power cable described in the utility model, including cable core, described cable core are twisted by more master cores Form；In the cable core around more master cores it is corresponding be provided with master core quantity identical temperature measuring equipment, in cable core Gap filling glass silk fiber packed layer, wrapped glass fiber tape, vertical bag metal tape and extruded low successively outside cable core The oversheath of cigarette Halogen A level fire proofings；Described temperature measuring equipment includes positive pole and negative pole, common outside positive pole and negative pole Shielding layer of copper wires is woven, low smoke and zero halogen A level fire proofing restrictive coatings are extruded outside shielding layer of copper wires；Described positive pole by nickel chromium triangle with And the red insulating barrier being extruded in outside nickel chromium triangle is formed, negative pole is made up of nisiloy and the brown insulating barrier being extruded in outside nisiloy.

Further improve, described master core is externally provided with inner semiconductor layer, insulation by conductor and successively in conductor Layer, out semiconductor layer, screen layer are formed.

Further improve, described conductor is copper conductor.

Further improve, described insulating barrier is crosslinked polyetylene insulated layer.

Further improve, the copper belt that described shielding band is thickness 0.1mm.

Further improve, described vertical bag metal tape is aluminum alloy strip.

The beneficial effects of the utility model：

This technology, which is related to, merges transmission electric energy in a cable with temperature measuring equipment, on the one hand can monitor cable Self-produced temperature, while the temperature of surrounding environment can also be monitored, ensure the security and stability of cable operation, this cable mainly should For cable for nuclear power station and high temperature applicationss.This cable has stronger proof voltage impact, is amenable to the frequent frequency conversion of high speed The impact of pulse voltage, temperature monitoring, block water, prevent fires and the characteristic such as low-smoke non-halogen flame-retardant.

Brief description of the drawings

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

Embodiment

Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for Illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, art technology Modification of the personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.

As shown in figure 1, the utility model provides a kind of frequency-conversion power cable, including cable core, described cable core is by more masters Core is twisted；Described master core is externally provided with inner semiconductor layer 2, crosslinking by copper conductor 1 and successively in copper conductor Polyethylene layer 3, out semiconductor layer 4, the thickness 0.1mm screen layer 5 of copper belt are formed.Around more master cores Cable core in it is corresponding be provided with master core quantity identical temperature measuring equipment, in the gap filling glass silk fiber of cable core Packed layer 9, wrapped glass fiber tape 6, vertical bag metal tape 7 and low smoke and zero halogen A level fire proofings are extruded successively outside cable core Oversheath 8；Described temperature measuring equipment includes positive pole and negative pole, the Co-knit shielding layer of copper wires 14 outside positive pole and negative pole, Low smoke and zero halogen A level fire proofings restrictive coating 15 is extruded outside shielding layer of copper wires；Described positive pole is by nickel chromium triangle 10 and is extruded in nickel Red insulating barrier 11 outside chromium is formed, and negative pole is made up of nisiloy 12 and the brown insulating barrier 13 being extruded in outside nisiloy.

The utility model concrete application approach is a lot, and described above is only preferred embodiment of the present utility model, should Point out, for those skilled in the art, on the premise of the utility model principle is not departed from, can also make Go out some improvement, these improvement also should be regarded as the scope of protection of the utility model.

Claims

A kind of 1. frequency-conversion power cable, it is characterised in that：Including cable core, described cable core is twisted by more master cores； In cable core around more master cores it is corresponding be provided with master core quantity identical temperature measuring equipment, in the gap of cable core Filling glass silk fiber packed layer, wrapped glass fiber tape, vertical bag metal tape and low smoke and zero halogen A levels are extruded successively outside cable core The oversheath of fire proofing；Described temperature measuring equipment includes positive pole and negative pole, the Co-knit copper wire outside positive pole and negative pole Screen layer, low smoke and zero halogen A level fire proofing restrictive coatings are extruded outside shielding layer of copper wires；Described positive pole is by nickel chromium triangle and is extruded in Red insulating barrier outside nickel chromium triangle is formed, and negative pole is made up of nisiloy and the brown insulating barrier being extruded in outside nisiloy.
2. frequency-conversion power cable according to claim 1, it is characterised in that described master core exists by conductor and successively Conductor is externally provided with inner semiconductor layer, insulating barrier, out semiconductor layer, screen layer and formed.
3. frequency-conversion power cable according to claim 2, it is characterised in that described conductor is copper conductor.
4. frequency-conversion power cable according to claim 2, it is characterised in that described insulating barrier is crosslinked polyetylene insulated Layer.
5. frequency-conversion power cable according to claim 2, it is characterised in that the purple that described shielding band is thickness 0.1mm Copper strips.
6. frequency-conversion power cable according to claim 1, it is characterised in that described vertical bag metal tape is aluminum alloy strip.