CN201584209U

CN201584209U - Fluoroplastic power cable

Info

Publication number: CN201584209U
Application number: CN2009202627657U
Authority: CN
Inventors: 李明斌
Original assignee: DONGGUAN NISSEI TRANSMITTING TECHNOLOGY Co Inc
Current assignee: DONGGUAN NISSEI TRANSMITTING TECHNOLOGY Co Inc
Priority date: 2009-11-16
Filing date: 2009-11-16
Publication date: 2010-09-15
Anticipated expiration: 2019-11-16

Abstract

The utility model discloses a fluoroplastic power cable. The cable comprises a plurality of first conducting wires, a second conducting wire and a ground wire, wherein each first conducting wire, the second conducting wire and the ground wire respectively include a conductor and a fluoroplastic insulation layer wrapping the conductor; the first conducting wires are stranded with each other to form a first conducting wire group; the first conducting wire group is wrapped by a non-woven fabric tape, an inner sheathing layer and an inner armor layer in sequence; the first conducting wire group wrapped by the inner armor layer is stranded with the second conducting wire to form a power supply wire core; the power supply wire core is sequentially wrapped by a halogen-free flame-retardant glass fiber layer and an inner sheath and then stranded with the ground wire to form a cable core; and the cable core is wrapped by an outer tape layer, an outer sheathing layer, an outer armor and an outer sheath in sequence. The fluoroplastic insulation layers and the sheaths with higher thermal resistance and excellent electric insulation performance are applicable to high-temperature environments, and produce no toxic gases when burned. The fluoroplastic power cable provided by the utility model has the advantages of better transmission performance, higher safety and high-temperature resistance.

Description

The fluoroplastics power cable

Technical field

The utility model relates to a kind of cable, relates in particular to a kind of have higher-security energy and resistant to elevated temperatures fluoroplastics power cable.

Background technology

High speed development along with China's industry, improving constantly of people's living standard, electric energy is to become indispensable important energy source in people's life, and the application of electric energy and development, make power industry obtain developing more rapidly, a new agenda has been put in the transmission of electric energy, also corresponding electric power facility has been proposed higher requirement, especially the electric wire production industry has been proposed new challenge.The power cable line extensive use is layed in occasions of all kinds such as resident living area, industrial production district and the various environment, whether power cable transmission the safe and reliable life security that concerns people, social public security and interests, thereby also come high more to performance demands such as the heat-proof combustion-resistant of power cable and safety.Expansion along with the power cable application surface, many times need in the environment of some high temperature, use, the power cable that requirement is used for electric energy transmitting not only needs to bear higher ambient temperature as 90-105 ℃, also need to bear higher conductor temperature as about 130 ℃, the overload capacity of common plastics insulated cable and short circuit thermal capacity are little, the long-term work temperature is 10 ℃ or 90 ℃, can not bear higher ambient temperature, polyvinyl chloride insulation is heated and can shrinks simultaneously, thermal circulation performance is poor, influence the fail safe of circuit working, in case and breaking out of fire, have a large amount of poisonous and harmful substances during burning and produce, personnel and facilities and equipment are formed secondary pollution, have big potential safety hazard.

Therefore, be badly in need of a kind of high temperature resistant, fluoroplastics power cable that security performance is good.

The utility model content

The purpose of this utility model is to provide a kind of have higher-security energy and resistant to elevated temperatures fluoroplastics power cable.

For achieving the above object, the technical solution of the utility model is: a kind of fluoroplastics power cable is provided, it comprises some first leads, second lead and ground wire, described first lead, second lead and ground wire form by the insulating barrier coating conductor that fluoroplastics form, the mutual stranded formation first lead group of some described first leads, the described first lead group is coated with the nonwoven fabrics band, described nonwoven fabrics band is coated with the sheath of fluoroplastics, described sheath is coated with the inner armor layer, be coated with the first lead group and the stranded formation power supply of described second lead core of described inner armor layer, described power supply core is surrounded with the fine layer of halogen-free flameproof glass outward, the outer inner sheath that coats fluoroplastics of the fine layer of described halogen-free flameproof glass, be coated with the power supply core and the stranded formation cable of the described ground wire core of described inner sheath, the outsourcing of described cable core is wound with outer belting layer, described outer belting layer is extruded with the outer jacket of fluoroplastics outward, described outer jacket is woven with armoured layer outward, the outer oversheath that is extruded with fluoroplastics of described armoured layer.

Preferably, also comprise fire-retardant obturator, described fire-retardant obturator is filled between first lead of the described first lead group of stranded formation and between described power supply core and the ground wire.Fire-retardant obturator is convenient to stranded moulding between the lead.

Preferably, described armour is formed by copper, copper alloy, aluminium alloy or zinc-coated wire braiding.Have intensity height, flexibility good etc. characteristic, guarantee the tensile property and the softness of cable.

Compared with prior art, because the utility model fluoroplastics power cable, it comprises some first leads, second lead and ground wire, described first lead, second lead and ground wire form by the insulating barrier coating conductor that fluoroplastics form, the mutual stranded formation first lead group of some described first leads, the described first lead group is coated with the nonwoven fabrics band outward successively, sheath, the inner armor layer, be coated with the first lead group and the stranded formation power supply of described second lead core of described inner armor layer, described power supply core is coated with the fine layer of halogen-free flameproof glass outward successively, inner sheath, be coated with the power supply core and the stranded formation cable of the described ground wire core of described inner sheath, described cable core is coated with outer belting layer outward successively, outer jacket, armoured and oversheath.Described nonwoven fabrics band can prevent that conductor is corroded and insulate; Fluoroplastic insulation layer, sheath all have higher heat resistance and excellent cold tolerance, also has excellent electric insulation, be applicable in the hot environment, and not having pernicious gas during burning produces, described armour intensity height, softness are good, and therefore, described fluoroplastics power cable is when having better transmission performance, also have the good temperature resistance energy is arranged, security performance is good.

Description of drawings

Fig. 1 is the cross section structure schematic diagram of the utility model fluoroplastics power cable.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.

As shown in Figure 1, the utility model embodiment fluoroplastics power cable 1 comprises first lead 111, second lead 120 and ground wire 130, described first lead 111, second lead 120 and ground wire 130 form by insulating barrier 124 coating conductors 122 that fluoroplastics form, demand according to reality, conductor 122 sizes of forming described first lead 111 and second lead 120 can be different, but described conductor 122 should be to meet the 1st kind of GB/T3956 or the 2nd kind of naked annealed copper conductor or metal cladding annealed copper conductor, perhaps the 5th kind of bare copper conductor or metal cladding annealed copper conductor.Tinned wird also should meet the regulation of GB/T4910.Three groups of described first lead, 111 mutual stranded formation first lead groups 110, the described first lead group 110 is coated with nonwoven fabrics band 112, and described nonwoven fabrics band 112 is coated with the sheath 114 of fluoroplastics, and this sheath 114 can extrude or be wrapped.Described sheath 114 is coated with inner armor layer 116, be coated with the first lead group 110 and described second lead, 120 stranded formation power supply cores 100 of described inner armor layer 116, the described power supply core 100 outer fine layers 200 of halogen-free flameproof glass that are surrounded with, the fine layer 200 outer inner sheath 300 that coats fluoroplastics of described halogen-free flameproof glass, be coated with the power supply core 100 and described ground wire 130 stranded formation cable cores 10 of described inner sheath 300, the described cable core 10 outer outsourcing belts 20 that are surrounded with, described outer belting layer 20 adopts the mica belting layer, has fire resistance.The described outer belting layer 20 outer outer jackets 30 that are extruded with fluoroplastics, described outer jacket 30 outer armoured layer 40, the described armoured layer 40 outer oversheath 50 that is extruded with fluoroplastics of being woven with.

Preferably, described inside and

outside armour

116,40 is formed by copper, copper alloy, aluminium alloy or zinc-coated wire braiding, and adhesion outer jacket 30 or oversheath 50.Have intensity height, flexibility good etc. characteristic, guarantee the tensile property and the softness of cable.The joint of litzendraht wire should weld, the goods of twisting joint is compiled into braid, but whole braid should be not continuous, and braid is answered uniformity, and the density of described armouring braid is not less than 80%.

Preferably, also comprise fire-retardant obturator 70, this obturator 70 also can adopt non-hygroscopic material, and filler is answered the adhesion insulated wire cores.Described fire-retardant obturator 70 is filled in the form of gasket for packing between first lead 111 of the described first lead group 110 of stranded formation and between described power supply core 100 and the ground wire 130.Fire-retardant obturator 70 is convenient to stranded moulding between the lead.

The long-term permission working temperature of the conductor 122 in the utility model fluoroplastics power cable 1 is 200 ℃, and minimum environment for use temperature is-65 ℃, prevents that by nonwoven fabrics band 112 conductor 122 is corroded and insulate; Fluoroplastic insulation layer, sheath all have higher heat resistance and excellent cold tolerance, also has excellent electric insulation, adopt multilayer fluoroplastic insulation, sheath, reinforced insulation, resistance to elevated temperatures, be applicable in the hot environment, and do not have pernicious gas during burning and produce, utilize the double armor layer to realize favorable waterproof property.Therefore, described fluoroplastics power cable 1 also has the good temperature resistance energy is arranged when having better transmission performance, and security performance is good.

The utility model fluoroplastics power cable is made related material and parameter, all decides according to actual conditions, for well known to those of ordinary skill in the art, no longer is described in detail at this.

Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. fluoroplastics power cable, it is characterized in that: comprise some first leads, second lead and ground wire, described first lead, second lead and ground wire form by the insulating barrier coating conductor that fluoroplastics form, the mutual stranded formation first lead group of some described first leads, the described first lead group is coated with the nonwoven fabrics band, described nonwoven fabrics band is coated with the sheath of fluoroplastics, described sheath is coated with the inner armor layer, be coated with the first lead group and the stranded formation power supply of described second lead core of described inner armor layer, described power supply core is surrounded with the fine layer of halogen-free flameproof glass outward, the outer inner sheath that coats fluoroplastics of the fine layer of described halogen-free flameproof glass, be coated with the power supply core and the stranded formation cable of the described ground wire core of described inner sheath, the outsourcing of described cable core is wound with outer belting layer, described outer belting layer is extruded with the outer jacket of fluoroplastics outward, described outer jacket is woven with armoured layer outward, the outer oversheath that is extruded with fluoroplastics of described armoured layer.

2. fluoroplastics power cable as claimed in claim 1 is characterized in that: also comprise fire-retardant obturator, described fire-retardant obturator is filled between first lead of the described first lead group of stranded formation and between described power supply core and the ground wire.

3. fluoroplastics power cable as claimed in claim 1 is characterized in that: described armour is formed by copper wire or tinned copper wire or zinc-coated wire braiding.