CN203433862U - Waterproof cable applied on beach - Google Patents
Waterproof cable applied on beach Download PDFInfo
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- CN203433862U CN203433862U CN201320484537.0U CN201320484537U CN203433862U CN 203433862 U CN203433862 U CN 203433862U CN 201320484537 U CN201320484537 U CN 201320484537U CN 203433862 U CN203433862 U CN 203433862U
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Abstract
The utility model discloses a waterproof cable applied on the beach, which comprises a cable core at the center of the cable. The cable core is composed of a plurality of inter-twisted wire cores. Each wire core is composed of a conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a semi-conductive wrapping layer and a metallic shielding layer, wherein the conductor shielding layer, the insulating layer, the insulating shielding layer, the semi-conductive belting layer and the metallic shielding layer are arranged outside the conductor successively. A filling layer is arranged in the cable core. The outside of the cable core is successively provided with a belting layer, a metallic armor layer, a waterproof inner sheath and a waterproof outer sheath layer. Due to the adoption of the above structure, the cable is not only in fully-water-blocking property, but also better in corrosion resistance and safety performance. Therefore, the waterproof cable can be used as a power transmission line in beach areas.
Description
Technical field
The utility model relates to electric wire field, relates in particular to a kind of seabeach water-proof cable.
Background technology
At present in the wind energy turbine set in China coastal seas area and some other occasions in beach area, coastal waters, what power transmission medium-pressure power cable used generally adopted is common medium-pressure power cable, yet common medium-pressure power cable in use exposes following problem:
1, because the medium-pressure power cable of use is laid in beach area, coastal waters, may be periodically or regular by sea water immersion, and common medium-pressure power cable is owing to not having superior radially longitudinal water-blocking performance, cause water vapor permeable in insulation, and be easy to cause water tree to puncture after there is steam in crosslinked polyetylene insulated, finally make the security reliability of cable greatly reduce.
2, in the seawater in coastal waters beach area and have a large amount of salinities and other some chemical substances in air, and common medium-pressure power cable is owing to not having superior sea water resistance and salt air corrosion performance, cable is after sea water immersion and salt fog erosion, its oversheath and cable inner member are corroded very soon, finally cause cable often very short in useful life.
Utility model content
In order to overcome prior art defect, the purpose of this utility model is to provide a kind of waterproof and dampproof sea water resistance salt air corrosion type medium-pressure power cable, this product not only has superior full block-water performance and water resistant tree breakdown performance, sea water resistance salt air corrosion performance, but also has superior electric property and higher safety and reliability and stable transmission performance and longer useful life.
The utility model comprises and being positioned in the middle of cable by the stranded cable core forming of several wire core, described core by conductor and the conductor shield, insulating barrier, insulation screen, semiconductive belting layer and the metal screen layer that are extruded in successively outside conductor form; Between cable core, be provided with packed layer, at cable core, set gradually belting layer, metal tape armour layer, waterproof inner sheath, waterproof external sheath layer outward.
Further improve, described conductor adopts the high circular stranded conductor that presses, and is added with water blocking yarn simultaneously between stranded conductor.
Further improve, described metal tape armour layer adopts anticorrosion stainless steel band to indulge and wraps and weld.
Further improve, described insulating barrier is crosslinked polyetylene insulated layer.
Further improve, described metal tape armour layer is the wrapped armour of steel band.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
Conductor adopts and presses circular stranded conductor, by improving the coefficient that presses of conductor, prevents that moisture from permeating along conductor, adds water blocking yarn when stranded conductor simultaneously, guarantees longitudinal water resistance of conductor; Insulating material adopts the water resistant tree Insulation Material of high-quality, even if cable insulation is being subject to also guaranteeing that insulation water tree can not occur and punctures when steam is invaded, improves the security performance of cable; Wrapped one deck semiconductive zone of swelling that blocks water also outside insulated wire cores, this band not only has balanced insulating surface electric field and also has good resistance effect, ensures the resistance effect of insulated wire cores; In cable core gap, be filled with the expanded yarns that blocks water, while outside is the wrapped zone of swelling that blocks water also, and these materials can expand rapidly after running into moisture, and then stops moisture to permeate along cable core, guarantees the block-water performance of whole cable core.The vertical covering of metal tape adopts the vertical bag welding of anticorrosion stainless steel band embossing, adopting stainless steel band to indulge wraps and welds, in cable core outside, formed the fluid-tight metal protection layer of one deck, utilize the impermeability of metal to form the firm barrier that blocks water one, finally guarantee the water resistance of cable, stainless steel band has superior anticorrosive property simultaneously, can stand the permanent immersion of seawater and can not be corroded, even like this cable cable lay or use procedure in oversheath be subject to mechanical damage, seawater is invaded also can further not corrode the inside of cable, guarantees the normal use of cable; The vertical covering of stainless steel band of cable also extrudes one deck high density high polymer polyolefin outward, utilizes the intermolecular compactness of high density polymer, guarantees the radially waterproof of cable; The oversheath of cable adopts acrylonitrile-butadiene rubber and polyvinyl chloride composite material; by adding acrylonitrile-butadiene rubber and other some additives to carry out modification in pvc sheathing compound; make the oversheath of cable there is excellent sea water resistance and salt fog erosion performance; through checking this sheath after seawater long period of soaking; its mechanical performance does not have to change substantially, has protected cable inner member not to be subject to the corrosion of seawater salt fog.The utility model has solved the waterproof and dampproof poor performance that common medium-pressure power cable is applied in beach area, coastal waters, cable easily causes the water tree of whole cable insulation to puncture after steam immerses, and the sea water resistance salt air corrosion of cable is poor, security reliability is low, the problems such as useful life is short, can be widely used in coastal beach area and make power transmission line.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
As Fig. 1, a kind of seabeach water-proof cable, it comprises the cable core that is positioned at cable centre, described cable core forms by several wire core is stranded, and core is comprised of conductor 1 and the conductor shield 2, insulating barrier 3, insulation screen 4, semiconductive belting layer 5 and the metal screen layer 6 that are successively set on outside conductor 1; Between cable core, be provided with packed layer 7, at cable core, set gradually belting layer 8, metal tape armour layer 9, waterproof inner sheath 10, waterproof external sheath layer 11 outward.Conductor 1 employing is wherein pressed more than 0.92 height of coefficient and is pressed circular stranded conductor, is added with water blocking yarn between stranded copper wire simultaneously.
Described metal tape armour layer 9 adopts anticorrosion stainless steel band to indulge and wraps and weld.Described insulating barrier 3 is crosslinked polyetylene insulated layer.
The conductor 1 of the present embodiment cable adopts and presses circular stranded conductor, conductor production process wire drawing-annealing-stranded-press several stages, and the wire drawing and annealing of copper single line is by completing on wire drawing machine, and the strand system of conductor is pressed by implementing on stranding machine.Conductor screen, insulation, insulation shielding by crosslinked plastic extruding machine three layers once extruded, and by crosslinked pipeline, insulate crosslinked.Semiconductive belting layer 5 adopts the overlapping wrapped mode of semiconductive waterstop to produce, and this production process completes on winding machine.Metal screen layer 6 adopts the overlapping wrapped mode of copper strips to produce, and this production process completes on metallic shield machine.Packed layer 7 and belting layer 8 are in insulated wire cores twisted synthesizing cable, fill, and on cable core surface, carry out wrappedly between the space of cable core, and this production process completes on cabler.The vertical covering 9 of metal tape adopts the vertical mode of production of wrapping and welding embossing of anticorrosion stainless steel band, and it is first stainless steel band to be indulged and wrapped in cable core surface, then vertical overseam gap is welded and embossing, and this production process completes on the vertical chartered plane of metal tape.The mode that inner sheath 10 adopts high density polymer to extrude is produced, and this production process completes on plastic extruding machine.Oversheath 11 adopts acrylonitrile-butadiene rubber and polyvinyl chloride composite to extrude mode and produces, and this production process completes on plastic extruding machine.
The above is only preferred implementation of the present utility model.It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection range of the present utility model.
Claims (5)
1. a seabeach water-proof cable, it is characterized in that comprising being positioned in the middle of cable by the stranded cable core forming of several wire core, described core is by conductor (1) and be extruded in successively conductor (1) outer conductor shield (2), insulating barrier (3), insulation screen (4), semiconductive belting layer (5) and metal screen layer (6) and form; Between cable core, be provided with packed layer (7), at cable core, set gradually belting layer (8), metal tape armour layer (9), waterproof inner sheath (10), waterproof external sheath layer (11) outward.
2. seabeach according to claim 1 water-proof cable, is characterized in that: described conductor (1) adopts the high circular stranded conductor that presses, and is added with water blocking yarn simultaneously between stranded conductor.
3. a kind of seabeach according to claim 1 water-proof cable, is characterized in that: described metal tape armour layer (9) adopts anticorrosion stainless steel band to indulge and wraps and weld.
4. a kind of seabeach according to claim 1 water-proof cable, is characterized in that: described insulating barrier (2) is crosslinked polyetylene insulated layer.
5. a kind of seabeach according to claim 1 water-proof cable, is characterized in that: described metal tape armour layer (9) is the wrapped armour of steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484537.0U CN203433862U (en) | 2013-08-09 | 2013-08-09 | Waterproof cable applied on beach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484537.0U CN203433862U (en) | 2013-08-09 | 2013-08-09 | Waterproof cable applied on beach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433862U true CN203433862U (en) | 2014-02-12 |
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ID=50062887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484537.0U Expired - Lifetime CN203433862U (en) | 2013-08-09 | 2013-08-09 | Waterproof cable applied on beach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928143A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion control cable |
| CN109147995A (en) * | 2018-10-09 | 2019-01-04 | 江苏亨通光电股份有限公司 | A kind of optoelectronic composite cable |
-
2013
- 2013-08-09 CN CN201320484537.0U patent/CN203433862U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928143A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion control cable |
| CN109147995A (en) * | 2018-10-09 | 2019-01-04 | 江苏亨通光电股份有限公司 | A kind of optoelectronic composite cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |