CN204991261U - Middling pressure waterproofing type cable - Google Patents
Middling pressure waterproofing type cable Download PDFInfo
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- CN204991261U CN204991261U CN201520592003.9U CN201520592003U CN204991261U CN 204991261 U CN204991261 U CN 204991261U CN 201520592003 U CN201520592003 U CN 201520592003U CN 204991261 U CN204991261 U CN 204991261U
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Abstract
The utility model discloses a middling pressure waterproofing type cable belongs to power cable technical field, from inside to outside, wraps the sheath for conductor part, inside semiconductor layer, insulating layer, outside semiconductor layer, shielding layer, absorb water layer and aluminium in proper order, the conductor part is equipped with a plurality of conductors, and has inserted between each conductor to absorb water and taken I, between inside semiconductor layer and the insulating layer, between insulating layer and the outside semiconductor layer, has all convoluteed to absorb water between outside semiconductor layer and the shielding layer and has taken II, absorb water and take II to be the four -layer structure, from inside to outside in proper order for base cloth, water proofness material layer, high cohesive material layer and the aluminium sheath of taking on guarantee. This middling pressure waterproofing type cable, simple structure, especially after the sheath breaks, having prevented that moisture from getting into the conductor part in a large number, having avoided causing the destruction to very long cable, corrosion behavior also obtains great improvement simultaneously.
Description
Technical field
The utility model relates to a kind of power cable, is specifically related to pressure drag water type cable in one.
Background technology
In recent years, the user of especially overseas power cable, increasing to the requirement of cable longitudinal water-blocking structure.At home, in the cable special circuit that power cable is generally all laid in groove or pipeline., overseas power cable is directly laid in underground (direct burial apply not) mostly, so cable is directly subject to the effect of external force, and suffers public's fault to cause the danger of wound very large.Because this of overseas power cable lays situation, mostly adopt mechanical protection and play the water blocking layer constructions of cable such as the metallic sheath of resistance effect or metal one plastic tape., even if inside such cable, in time occurring traumatic event or insulate impaired, it is inner that water will immerse cable from damage.Gap along the longitudinal to cable inside is spread, and makes to grow very much one section of cable and can not use due to immersion.When the cable of directly buried installation has an accident, very long one section of new cable must be changed near accident point.For this reason, people wish that the distance of leaking in cable should be shorter as far as possible.Therefore, in order to prevent leaking when soaking, be necessary to process the gap of cable inside.
Utility model content
In order to overcome above-mentioned defect, the utility model provides pressure drag water type cable in one, from inside to outside, is followed successively by conductor part, internal semiconductive layer, insulating barrier, outside semiconductive layer, screen, water accepting layer and aluminium jacket; Described conductor part is provided with multiple conductor, and is inserted with water sucting belt I between each conductor; Water sucting belt II is all wound with between described internal semiconductive layer and insulating barrier, between insulating barrier and outside semiconductive layer, between outside semiconductive layer and screen; Described water sucting belt II is four-layer structure, is followed successively by Ji Bu, watertight material layer, high viscosity material layer and aluminium bag protective layer from inside to outside.
Further, in order to absorb the water penetrated in conductor part fast, described water sucting belt I is made up of the water absorbent polymer of acrylic compounds.
Further, owing to can expand after water accepting layer water suction, the gap of 0.3 ~ 0.4mm between described water accepting layer and sheath, is reserved with.
Further, described aluminium jacket is the aluminium sheath that outer surface is extruded with one deck crosslinked polyethylene.Due to aluminium jacket sealed insulation core, there is good water proofing property.
The beneficial effects of the utility model are: middle pressure drag water type cable provided by the utility model, structure is simple, convenient for production, specifically, the conductor part of this product is inserted with water sucting belt I between each conductor, when water immerses conductor part, expand after water sucting belt I absorbs water, blocked the flowing of water at conductor part; Be further, water sucting belt II is all wound with between internal semiconductive layer and insulating barrier, between insulating barrier and outside semiconductive layer, between outside semiconductive layer and screen, and water sucting belt II is four-layer structure, Ji Bu, watertight material layer, high viscosity material layer and aluminium bag protective layer is followed successively by from interior putting in place, when after sheath breakage, block the immersion of water layer by layer, block-water effect is very outstanding, when electrician finds that cable occurs that breakage is repaired, the cable being soaked with water also can not be very long, greatly reduces and saved material resources; Further, because water sucting belt II is provided with one deck aluminium bag protective layer, while block-water effect excellence, its erosion-resisting ability is also strengthened greatly, has expanded the applied environment of pressing water repellent electric cable in this.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only an embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Reference numeral: 1-conductor, 2-internal semiconductive layer, 3-insulating barrier, 4-outside semiconductive layer, 5-screen, 6-water sucting belt, 7-aluminium jacket, 8-water sucting belt I, 9-water sucting belt II.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only an embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1, pressure drag water type cable in one, from inside to outside, is followed successively by conductor part 1, internal semiconductive layer 2, insulating barrier 3, outside semiconductive layer 4, screen 5, water accepting layer 6 and aluminium jacket 7; Described conductor part is provided with multiple conductor, and is inserted with water sucting belt I8 between each conductor; Between described internal semiconductive layer 2 and insulating barrier 3, between insulating barrier 3 and outside semiconductive layer 4, between outside semiconductive layer 4 and screen 5, be all wound with water sucting belt II9; Described water sucting belt I8 is made up of the water absorbent polymer of acrylic compounds; Described water sucting belt II9 is four-layer structure, is followed successively by Ji Bu, watertight material layer, high viscosity material layer and aluminium bag protective layer from interior putting in place; The gap of 0.3 ~ 0.4mm is reserved with between described water accepting layer 6 and sheath 7; Described aluminium jacket 7 is extruded with the aluminium sheath of one deck crosslinked polyethylene for outer surface.
In this, the conductor part 1 of pressure drag water type cable is provided with multiple conductor, and between multiple conductor, be inserted with water sucting belt I8, when arriving conductor part 1 after immersion in cable, can block the flowing of water in conductor part 1; And, water sucting belt II9 is all wound with between internal semiconductive layer 2 and insulating barrier 3, between insulating barrier 3 and outside semiconductive layer 4, between outside semiconductive layer 4 and screen 5, when after aluminium jacket 7 breakage, structurally block the immersion of water layer by layer, the distance achieving cable immersion can not be very long; And water sucting belt II9 is followed successively by the four-layer structure of Ji Bu, watertight material layer, high viscosity material layer and aluminium bag protective layer from interior putting in place, its water absorbing properties is quick, effective, and due to aluminium bag protective layer, greatly strengthen the corrosive nature of this cable.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments, equivalent replacement etc. done in protection range of the present utility model, all should be included within protection range of the present utility model.
Claims (4)
1. in, a pressure drag water type cable, is characterized in that: from inside to outside, is followed successively by conductor part, internal semiconductive layer, insulating barrier, outside semiconductive layer, screen, water accepting layer and aluminium jacket; Described conductor part is provided with multiple conductor, and is inserted with water sucting belt I between each conductor; Water sucting belt II is all wound with between described internal semiconductive layer and insulating barrier, between insulating barrier and outside semiconductive layer, between outside semiconductive layer and screen; Described water sucting belt II is four-layer structure, is followed successively by Ji Bu, watertight material layer, high viscosity material layer and aluminium bag protective layer from inside to outside.
2. middle pressure drag water type cable according to claim 1, is characterized in that: described water sucting belt I is made up of the water absorbent polymer of acrylic compounds.
3. middle pressure drag water type cable according to claim 1, is characterized in that: the gap being reserved with 0.3 ~ 0.4mm between described water accepting layer and sheath.
4. pressure drag water type cable according to any one of claims 1 to 3, is characterized in that: described aluminium jacket is the aluminium sheath that outer surface is extruded with one deck crosslinked polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592003.9U CN204991261U (en) | 2015-08-07 | 2015-08-07 | Middling pressure waterproofing type cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592003.9U CN204991261U (en) | 2015-08-07 | 2015-08-07 | Middling pressure waterproofing type cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991261U true CN204991261U (en) | 2016-01-20 |
Family
ID=55125604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520592003.9U Expired - Fee Related CN204991261U (en) | 2015-08-07 | 2015-08-07 | Middling pressure waterproofing type cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251392A (en) * | 2018-08-14 | 2019-01-22 | 重庆瑞普电气实业股份有限公司 | A kind of water-tree-resistantmedium medium voltage crosslinked cable |
-
2015
- 2015-08-07 CN CN201520592003.9U patent/CN204991261U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251392A (en) * | 2018-08-14 | 2019-01-22 | 重庆瑞普电气实业股份有限公司 | A kind of water-tree-resistantmedium medium voltage crosslinked cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |