CN203941711U - Middle pressure tension power cable - Google Patents
Middle pressure tension power cable Download PDFInfo
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- CN203941711U CN203941711U CN201420325100.7U CN201420325100U CN203941711U CN 203941711 U CN203941711 U CN 203941711U CN 201420325100 U CN201420325100 U CN 201420325100U CN 203941711 U CN203941711 U CN 203941711U
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Abstract
The utility model discloses a kind of middle pressure tension power cable, relate to power cable technical field.Comprise three power insulated wire cores, power insulated wire cores comprises conductor, conductor semiconductive shielding layer, insulating barrier and insulation semiconductive shielding layer, conductor is by aluminum-alloy wire and nylon yarn or aramid fiber yarn is stranded forms, and three power insulated wire cores are " product " set up of character patt ern in oversheath; " product " font center and three power insulated wire cores outside, between power insulated wire cores, be respectively arranged with strengthening core between two, strengthening core is comprised of the tension element resilient coating outside steel wire rope tension element and tension element, and steel wire rope tension element forms by carbon steel wire is stranded; The mutual stranded formation cable core of power insulated wire cores and strengthening core, cable core is coated inner covering and oversheath outward successively, between cable core and inner covering, fills gasket for packing.The utility model has alleviated cable weight greatly, has effectively avoided the destruction of cable deadweight to cable body, saves raw material, has strengthened the tensile property of cable.
Description
Technical field
The utility model relates to power cable technical field.
Background technology
In deep-well (ore deposit) and the large power transmission lines of drop, especially in dark mine, need a large amount of tension power cables to ensure supply and the transmission of electric power, at present multiselect steel wire armored power cable.Because the weight ratio of this cable self is larger, the difficulty of cable when laying and install increased, be easy to cause the body damage of cable, even cause construction accident.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of middle pressure tension power cable, owing to greatly having alleviated the weight of cable, effectively avoided the destruction of cable deadweight to cable body, also increased the fail safe of construction, save raw material simultaneously, strengthened the tensile property of cable.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of middle pressure tension power cable, comprise three power insulated wire cores and oversheath, three power insulated wire cores comprise respectively conductor, conductor is coated with conductor semiconductive shielding layer, insulating barrier and insulation semiconductive shielding layer outward successively, conductor is by many aluminum-alloy wires and at least one nylon yarn or aramid fiber yarn is stranded forms, and three power insulated wire cores are " product " set up of character patt ern in oversheath; " product " font center of three power insulated wire cores is provided with strengthening core, and three power insulated wire cores outside, between power insulated wire cores, be respectively arranged with strengthening core between two, strengthening core is comprised of steel wire rope tension element and tension element resilient coating, steel wire rope tension element is by many stranded the forming of carbon steel wire, and steel wire rope tension element has extruded tension element resilient coating outward; Three power insulated wire cores and the mutual stranded formation cable core of strengthening core, cable core is coated with inner covering, and inner covering has extruded oversheath outward, in the gap between cable core and inner covering, is filled with gasket for packing.
Preferably, insulating barrier is crosslinked polyetylene insulated layer; Tension element resilient coating is polyvinyl chloride, crosslinked polyethylene or polyethylene tensile body resilient coating.
Preferably, gasket for packing is polypropylene mesh, polyvinyl chloride or polyethylene gasket for packing; Inner covering is polyvinyl chloride or polyethylene liner layer; Oversheath is polyvinyl chloride or outer protective polyethylene cover.
This cable design is to take GB/T 12706.2-2008 < < rated voltage 1kV(Um=1.2kV) to 35kV(Um=40.5kV) extrusion insulating power cable and annex part 2: rated voltage 6 kV(Um=7.2 kV) to 30 kV(Um=36 kV) cable > > is for basic, and with reference to the demand of technical standard of steel wire rope and steel wire armored cable, design rated voltage 6kV uses tension power cable to 30kV deep-well (ore deposit).
Press in this tension power cable be applicable to deep-well (ore deposit) and in the power transmission lines of fall laying, use greatly.
The beneficial effect that adopts technique scheme to produce is:
(1) the utility model is owing to greatly having alleviated the weight of cable, effectively avoided the destruction of cable deadweight to cable body, also increased the fail safe of construction, raw material have been saved simultaneously, strengthened the tensile property of cable, be applicable to use in the power transmission lines of deep-well (ore deposit) and large fall laying, Social benefit and economic benefit is all improved a lot.
(2) the utility model conductor is by many aluminum-alloy wires and nylon yarn or aramid fiber yarn is stranded forms, and aluminum-alloy wire has alleviated the deadweight of cable, and cost is low simultaneously, energy savings; Nylon yarn and aramid fiber yarn have been strengthened the tensile strength of conductor, have increased the pliability of cable, make cable be not easy fracture, have extended the useful life of cable.
" product " font center of (3) three power insulated wire cores is provided with strengthening core, and the tensile strength of this cable has been strengthened in three power insulated wire cores outside, the design that is respectively arranged with between two strengthening core between power insulated wire cores, and compare with steel wire armored power cable, cut wire armoring, alleviate cable own wt, effectively avoided the destruction of cable deadweight to cable body, also increased the fail safe of construction, save raw material simultaneously, reduced the manufacturing cost of cable; Steel wire rope tension element is by many stranded the forming of carbon steel wire, and carbon steel wire intensity is high, corrosion-resistant; Steel wire rope tension element extrudes the design of tension element resilient coating outward, avoids the carbon steel wire power insulated wire cores of stabbing, fray; Three power insulated wire cores and the mutual stranded formation cable core of strengthening core, make whole cable stressed evenly, strengthened the tensile strength of this cable, extended cable useful life.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
In figure, 1, conductor; 2, nylon yarn; 3, aluminum-alloy wire; 4, steel wire rope tension element; 5, carbon steel wire; 6, tension element resilient coating; 7, insulation semiconductive shielding layer; 8, insulating barrier; 9, conductor semiconductive shielding layer; 10, inner covering; 11, oversheath; 12, gasket for packing.
Embodiment
Embodiment 1
A kind of tension power cable, as shown in Figure 1, comprise three power insulated wire cores and oversheath 11, three power insulated wire cores comprise respectively conductor 1, outer conductor semiconductive shielding layer 9, insulating barrier 8 and the insulation semiconductive shielding layer 7 of being coated with successively of conductor 1, conductor 1 is by many aluminum-alloy wires 3 and three stranded forming of nylon yarn 2, and insulating barrier 8 is crosslinked polyetylene insulated layer, and three power insulated wire cores are " product " set up of character patt ern in oversheath 11.
" product " font center of three power insulated wire cores is provided with strengthening core, and three power insulated wire cores outside, between power insulated wire cores, be respectively arranged with a strengthening core between two, strengthening core is comprised of steel wire rope tension element 4 and tension element resilient coating 6, steel wire rope tension element 4 forms by many carbon steel wires 5 are stranded, steel wire rope tension element 4 is outer has extruded tension element resilient coating 6, and tension element resilient coating 6 is polyvinyl chloride tension element resilient coating.
Three power insulated wire cores and the mutual stranded formation cable core of strengthening core, cable core is coated with inner covering 10, and inner covering 10 is outer has extruded oversheath 11, in the gap between cable core and inner covering 10, is filled with gasket for packing 12.Gasket for packing 12 is polypropylene mesh gasket for packing; Inner covering 10 is polyethylene liner layer; Oversheath 11 is polyvinyl chloride oversheath.
Conductor 1 is by many aluminum-alloy wires 3 and three stranded forming of nylon yarn 2, and aluminum-alloy wire has alleviated the deadweight of cable, and cost is low simultaneously, energy savings; Nylon has very high mechanical strength, and nylon yarn can be strengthened the tensile strength of conductor, increases the pliability of cable, makes cable be not easy fracture, has extended the useful life of cable.The design of conductor semiconductive shielding layer 9 and insulation semiconductive shielding layer 7; Main Function is to make Electric Field Distribution even; reduce electric field strength; reduce the air gap on conductor 1 and insulating barrier 8 interfaces; improve the initial corona voltage of cable and the resistance to free discharge performance of cable; and reduce to a certain extent the temperature rise of insulating barrier 8, protection insulation." product " font center of three power insulated wire cores is provided with strengthening core, and the tensile strength of this cable has been strengthened in three power insulated wire cores outside, the design that is respectively arranged with between two a strengthening core between power insulated wire cores, and compare with steel wire armored power cable, cut wire armoring, alleviate cable own wt, effectively avoided the destruction of cable deadweight to cable body, also increased the fail safe of construction, save raw material simultaneously, reduced the manufacturing cost of cable.Steel wire rope tension element 4 forms by many carbon steel wires 5 are stranded, and carbon steel wire intensity is high, corrosion-resistant; The outer design that extrudes tension element resilient coating 6 of steel wire rope tension element 4, avoids the carbon steel wire power insulated wire cores of stabbing, fray.Three power insulated wire cores and the mutual stranded formation cable core of strengthening core, make whole cable stressed evenly, strengthened the tensile strength of this cable, extended cable useful life.Inner covering 10 can be protected cable core, and can make cable rounding; Oversheath 11 is polyvinyl chloride oversheath, both can protect cable, cost-saving again.
Embodiment 2
A tension power cable, as shown in Figure 2, is with the difference of embodiment 1, and conductor 1 is by many aluminum-alloy wires 3 and stranded forming of nylon yarn 2; Three power insulated wire cores outside, between power insulated wire cores, be respectively arranged with two strengthening cores between two; Tension element resilient coating 6 is crosslinked polyethylene tension element resilient coating; Gasket for packing 12 is polyvinyl chloride gasket for packing; Oversheath 11 is outer protective polyethylene cover.
Embodiment 3
A tension power cable, is with the difference of embodiment 1, and conductor 1 is by many aluminum-alloy wires 3 and four stranded forming of aramid fiber yarn; Tension element resilient coating 6 is polyethylene tensile body resilient coating; Gasket for packing 12 is polyethylene gasket for packing; Inner covering 10 is polyvinyl chloride inner covering; Oversheath 11 is outer protective polyethylene cover.
Aramid fiber full name is " PPTA ", a kind of novel high-tech synthetic fibers, the premium properties such as there is superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, lightweight, insulation, anti-aging, life cycle is long, its intensity is 5-6 times of steel wire, modulus is 2-3 times of steel wire, toughness is 2 times of steel wire, and weight is only 1/5 left and right of steel wire.Conductor has been strengthened the tensile strength of conductor by many aluminum-alloy wires and the stranded design forming of aramid fiber yarn, increased the pliability of cable, makes cable be not easy fracture, has extended the useful life of cable.
Our country has a vast territory and abundant resources, and particularly the province such as Shanxi, Shaanxi, Henan, exists a large amount of coal resources and other mineral resources, and these areas need a large amount of tension power cables to ensure supply and transmission of electric power.The mesolow electric line of Small And Medium Capacity will get a promotion the quality of its power supply after adopting this tensile cable, will greatly reduce the accident of power supply being caused by line arrangement.Because the reliability of this tension power cable is high, the advantage such as simple installation, environmental requirement be low, non-maintaining, be the cable product that meets modern architecture and the requirement of modern industry facility.
Claims (3)
1. press tension power cable in one kind, comprise three power insulated wire cores and oversheath (11), it is characterized in that: described three power insulated wire cores comprise respectively conductor (1), outer conductor semiconductive shielding layer (9), insulating barrier (8) and the insulation semiconductive shielding layer (7) of being coated with successively of conductor (1), described conductor (1) is by many aluminum-alloy wires (3) and at least one nylon yarn (2) or aramid fiber yarn is stranded forms, and three power insulated wire cores are " product " set up of character patt ern in described oversheath (11); " product " font center of three power insulated wire cores is provided with strengthening core, and three power insulated wire cores outside, between power insulated wire cores, be respectively arranged with strengthening core between two, described strengthening core is comprised of steel wire rope tension element (4) and tension element resilient coating (6), described steel wire rope tension element (4), by stranded the forming of many carbon steel wires (5), has extruded tension element resilient coating (6) outside steel wire rope tension element (4); Three power insulated wire cores and the mutual stranded formation cable core of strengthening core, cable core is coated with inner covering (10), and inner covering (10) is outer has extruded oversheath (11), is filled with gasket for packing (12) in the gap between cable core and inner covering (10).
2. middle pressure tension power cable according to claim 1, is characterized in that described insulating barrier (8) is for crosslinked polyetylene insulated layer; Tension element resilient coating (6) is polyvinyl chloride, crosslinked polyethylene or polyethylene tensile body resilient coating.
3. middle pressure tension power cable according to claim 1 and 2, is characterized in that described gasket for packing (12) is polypropylene mesh, polyvinyl chloride or polyethylene gasket for packing; Inner covering (10) is polyvinyl chloride or polyethylene liner layer; Oversheath (11) is polyvinyl chloride or outer protective polyethylene cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325100.7U CN203941711U (en) | 2014-06-18 | 2014-06-18 | Middle pressure tension power cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420325100.7U CN203941711U (en) | 2014-06-18 | 2014-06-18 | Middle pressure tension power cable |
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| CN203941711U true CN203941711U (en) | 2014-11-12 |
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| CN201420325100.7U Active CN203941711U (en) | 2014-06-18 | 2014-06-18 | Middle pressure tension power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229047A (en) * | 2016-09-28 | 2016-12-14 | 上海卡迪夫电缆有限公司 | A kind of high temperature resistant anti tear silicone rubber flexible cable and preparation method thereof |
| CN107331451A (en) * | 2017-07-18 | 2017-11-07 | 无锡市恒汇电缆有限公司 | Environment-friendly type intelligent power network is with from load bearing complex structure multifunctional high pressure electric power cable and preparation method thereof |
| CN108932998A (en) * | 2018-07-17 | 2018-12-04 | 安徽鸿海电缆有限公司 | A kind of low temperature resistant crack resistence power cable |
| CN113345628A (en) * | 2021-01-26 | 2021-09-03 | 陈跃超 | Special cable for mechanical equipment |
-
2014
- 2014-06-18 CN CN201420325100.7U patent/CN203941711U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229047A (en) * | 2016-09-28 | 2016-12-14 | 上海卡迪夫电缆有限公司 | A kind of high temperature resistant anti tear silicone rubber flexible cable and preparation method thereof |
| CN107331451A (en) * | 2017-07-18 | 2017-11-07 | 无锡市恒汇电缆有限公司 | Environment-friendly type intelligent power network is with from load bearing complex structure multifunctional high pressure electric power cable and preparation method thereof |
| CN108932998A (en) * | 2018-07-17 | 2018-12-04 | 安徽鸿海电缆有限公司 | A kind of low temperature resistant crack resistence power cable |
| CN113345628A (en) * | 2021-01-26 | 2021-09-03 | 陈跃超 | Special cable for mechanical equipment |
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