CN202615913U

CN202615913U - Power cable for enamelled copper wire ship

Info

Publication number: CN202615913U
Application number: CN 201220275280
Authority: CN
Inventors: 吴涛; 刘洪云; 缪一芳
Original assignee: Jiangsu Zhongmei Cable Group Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2012-06-12
Filing date: 2012-06-12
Publication date: 2012-12-19
Anticipated expiration: 2022-06-12

Abstract

The utility model discloses a power cable for an enamelled copper wire ship. The power cable comprises a cable core, an inner sheath is extruded outside the cable core, a tinned copper wire braid shielding layer is sheathed outside the inner sheath and an outer sheath is extruded at the outmost layer; the cable core is formed by stranding a plurality of enamelled copper wire cores; the enamelled copper wire cores consist of enamelled copper conductors and conductor insulators extruded outside the enamelled copper conductors; and furthermore, fillers are arranged between the enamelled copper wire cores. According to the power cable, the unbalance between the every two adjacent conductor resistor and insulation resistor of the power cable for the enamelled copper wire ship can be solved, meanwhile, the carrying capacity of the cable is improved, the cable loss is reduced, and the copper conductor material of the cable is saved.

Description

A kind of enamel covered wire core warship ship power cable

Technical field

The utility model relates to the electric wire field, specifically is meant a kind of enamel covered wire core warship ship power cable.

Background technology

Existing warship ship power cable is on the naval vessel, to provide power supply used as electric device, and existing warship ship power cable comprises conductor thread core, lapping layer in the conductor thread core outerwrap, inner covering, screen, restrictive coating.Be enclosed with many conductor thread cores in the cable, filled by packed layer between the conductor thread core, conductor thread core is by several copper conductors, and the separator and the insulating barrier that are wrapped in outside the copper conductor are formed.Conductor isolation layer is general to adopt fire-resistant mica tape wrapped; Ethylene-propylene rubber material or cross-linking polyethylene materials are adopted in insulation; Inner covering generally adopts the cross-linked polyolefin material to make sheath, and screen adopts tinned copper wire or zinc-coated wire braiding, and oversheath adopts the cross-linked polyolefin material to make sheath.

At present; The problem that exists in the prior art is: 1, conductor is a copper conductor; The conductor twisting pitch is bigger, and the conductor resistance deviation is bigger between the every phase of multicore cable, and transmission current is unstable; The resistance between the core and the instability of impedance can cause the obvious of skin and proximity effect comparison that become between every phase, can cause the pressure drop of cable excessive; 2, cable when the very high electric current of frequency passes through lead, flows through in electric current one deck very thin on conductive line surfaces, thereby causes the ampacity of cable less than normal in the transmission of electricity process.

The utility model content

The technical problem that the utility model will solve provides a kind of disequilibrium that solves between every adjacent conductor resistance of power cable and the insulation resistance; Improve ampacity, the reduction cable loss of cable simultaneously, practiced thrift the warship ship power cable of cable copper conductor material.

The described a kind of enamel covered wire core warship ship power cable of the utility model comprises cable core, outside cable core, extrudes inner sheath, and outer woven shield of inner sheath and outermost layer extrude oversheath; Described cable core is that the enamel covered wire core is stranded forms by several.

Above-mentioned described enamel covered wire core is by the enamel-cover copper conductor and is extruded in the outer conductor insulation of enamel-cover copper conductor and constitutes.

Be provided with filling between the said enamel covered wire core.

The beneficial effect of the utility model is:

The utility model provides a kind of enamel covered wire core warship ship power cable, and it is long-pending to reduce cross-sectional area of conductor, practices thrift copper conductor material; Can reduce the external diameter of cable, be used in the naval vessel and can save the space; Can alleviate cable weight, be used in the deadweight that the naval vessel can alleviate the naval vessel, improve load-carrying ability.

Description of drawings

Fig. 1 is the structure chart of the utility model.

Embodiment:

As shown in Figure 1, the described a kind of enamel covered wire core warship ship power cable of the utility model comprises cable core, outside cable core, extrudes inner sheath 4, and inner sheath 4 outer braiding tinned copper wire woven shields 5 and outermost layer extrude oversheath 6; Described cable core is that the enamel covered wire core is stranded forms by several; Described enamel covered wire core is by enamel-cover copper conductor 1 and is extruded in the outer conductor insulation 2 of enamel-cover copper conductor 1 and constitutes; Be provided with between said enamel covered wire core is mutual and fill 3.

The operation principle of the utility model:

1, the utility model adopts enamel covered wire to make conductor, extruded insulation between the conductor monofilament, and the total surface area of increase conductor thread core is utilized skin effect again, improves the ampacity of cable; In addition, the cable of same ampacity can adopt identical method, and it is long-pending to reduce cross-sectional area of conductor, practices thrift copper conductor material.

2, said conductor monofilament space deviations guarantees at ± 0.001mm; Adopt layer-stranding when stranded, every layer of pitch multiple proportions is controlled in 12, guarantees stranded compactness; The conductor distortion is little; Simultaneously, guarantee that every monofilament or synnema strand can not have welding or joint, guarantee every phase conductor resistance deviation≤1%.

3, the utility model insulation is adopted low medium (dielectric loss≤0.02), high-insulativity (the EPDM insulating cement of insulation resistance>=5000 M Ω/km) is guaranteed every phase insulation resistance deviation≤1%; The three-layer co-extruded moisture balance extruder of insulating exruded employing import is extruded, and guarantees insulating exruded tight type, does not have steam to get into conductor, guarantees insulation eccentricity degree≤10%.

4, during the stranded stranding of core, the pitch multiple proportions is controlled in 10 times, guarantees the stranded tight non-loosening of core, guarantees between every phase balance each other.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.

Claims

1. an enamel covered wire core warship ship power cable comprises cable core, outside cable core, extrudes inner sheath (4), and outer woven shield of inner sheath (4) (5) and outermost layer extrude oversheath (6); It is characterized in that: described cable core is that the enamel covered wire core is stranded forms by several.

2. enamel covered wire core warship ship power cable according to claim 1 is characterized in that: described enamel covered wire core is by enamel-cover copper conductor (1) and is extruded in outer conductor insulation (2) formation of enamel-cover copper conductor (1).

3. enamel covered wire core warship ship power cable according to claim 1 and 2 is characterized in that: be provided with filling (3) between the said enamel covered wire core.