CN203941756U - Longitudinally waterproof medium-pressure power cable - Google Patents
Longitudinally waterproof medium-pressure power cable Download PDFInfo
- Publication number
- CN203941756U CN203941756U CN201420285867.1U CN201420285867U CN203941756U CN 203941756 U CN203941756 U CN 203941756U CN 201420285867 U CN201420285867 U CN 201420285867U CN 203941756 U CN203941756 U CN 203941756U
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Abstract
The utility model relates to power cable field, be specially a kind of longitudinally waterproof medium-pressure power cable, it is characterized in that: it comprises copper conductor and is coated on the semiconductive nylon tape of copper conductor outer surface, be coated on the conductor shield outside semi-conductive tape, be coated on the insulating barrier on conductor shield surface, be coated on the insulation screen of surface of insulating layer, be coated on the metal screen layer on insulation screen surface, for filling the waterproof filler in space, be coated on into the band on cable core surface, be coated on the inner sheath on band surface, be coated on the oversheath on inner sheath surface.This cable adopts characteristics such as having met water resistant tree and cold-resistant, wear-resisting, high mechanical properties, can meet the requirement that the power circuit of wet environment lays and uses in cold district completely.Can be widely used in the 26/35kV power circuit of cold district.
Description
Technical field
The utility model relates to power cable field, is specially a kind of longitudinally waterproof medium-pressure power cable.
Background technology
The a large amount of 26/35kV power cable with cross-linked polyethylene insulation of electrical network electrical power trans mission/distribution system is in underground operation, As time goes on, extraneous moisture can be penetrated into gradually in the insulation of cable and grow Cheng Shuishu, As time goes on continued growth of water tree meeting, under electric circumstance, finally cause insulation breakdown, become the major reason of cable early damage.In addition, in some cold districts, ambient temperature below-30 time cable can there is cold short phenomenon, the cable that this occasion is used also requires to possess cold-resistant performance.
Summary of the invention
The purpose of this utility model be to provide a kind of under wet environment and cold district the cable of 26/35kV grade electric power transfer.
In order to achieve the above object, the utility model is achieved in that
A kind of longitudinally waterproof medium-pressure power cable, it comprises copper conductor and is coated on the semiconductive nylon tape of copper conductor outer surface, be coated on the conductor shield outside semi-conductive tape, be coated on the insulating barrier on conductor shield surface, be coated on the insulation screen of surface of insulating layer, be coated on the metal screen layer on insulation screen surface, for filling the waterproof filler in space, be coated on into the band on cable core surface, be coated on the inner sheath on band surface, be coated on the oversheath on inner sheath surface.
Described longitudinal waterproof medium-pressure power cable, copper conductor is many stranded the forming of copper wire, and wherein fills water-proofing powder.
Described longitudinal waterproof medium-pressure power cable, conductor shield forms for conduction polyolefin material extrudes.
Described longitudinal waterproof medium-pressure power cable, insulating barrier is that water resistant tree XLPE Insulation Material extrudes and forms.
Described longitudinal waterproof medium-pressure power cable, waterproof filler forms for the packing that blocks water adds the plasticine that blocks water.
Described longitudinal waterproof medium-pressure power cable, inner sheath is that cold-resistant PVC protective cover material extrudes and forms, oversheath forms for cold-resistant waterproof polyurethane elastomer extrudes.
This cable adopts characteristics such as having met water resistant tree and cold-resistant, wear-resisting, high mechanical properties, can meet the requirement that the power circuit of wet environment lays and uses in cold district completely.Can be widely used in the 26/35kV power circuit of cold district.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Further illustrate the utility model by specific embodiment below.
As shown in Figure 1, the cold-resistant water resistant tree cable of a kind of 26/35kV, comprise copper conductor 1 and the semiconductive nylon tape 2 that is coated on copper conductor outer surface, be coated on the conductor shield 3 outside semi-conductive tape, be coated on the insulating barrier 4 on conductor shield surface, be coated on the insulation screen 5 of surface of insulating layer, be coated on the metal screen layer 6 on insulation screen surface, for filling the waterproof filler 7 in space, be coated on into the band 8 on cable core surface, be coated on the inner sheath 9 on band surface, be coated on the oversheath 10 on inner sheath surface.
Described copper conductor 1 is many stranded the forming of copper wire, and in copper conductor, fills water-proofing powder;
Described semi-conductive tape 2 is put up wrapped forming for semiconductive nylon tape;
Described conductor screen 3 forms for conduction polyolefin material extrudes;
Described insulation 4 forms for water resistant tree XLPE Insulation Material extrudes;
Described insulation shielding 5 forms for semiconductive polyolefin material extrudes;
Described metallic shield 6 is put up wrapped forming for copper strips;
Described filling 7 is for the packing that blocks water+plasticine blocks water;
Described band 8 forms for waterstop is wrapped;
Described inner sheath 9 forms for cold-resistant PVC protective cover material extrudes;
Described oversheath 10 forms for cold-resistant waterproof polyurethane elastomer extrudes;
Being a little of this cable:
1, conductor shield is conducive to the Electric Field Distribution of even conductor.
2, insulating barrier ensures that electric energy transmits in conductor, adopts the XLPE Insulation Material of water resistant tree, compared with general XLPE Insulation Material, adopts this material can suppress water tree and produces in insulation, improves the fail safe of cable, increases the service life.
3, insulation shielding prevents the gathering of electrostatic charge at insulating surface, causes insulation breakdown.
4, electric charge is imported in time the earth by metallic shield.
6, cold-resistant oversheath employing cold-resistant PVC and cold-resistant waterproof polyurethane elastomer sheathing material extrude and form, and the brittle temperature of this material is-40 DEG C, and this material makes cable can use the occasion below-30 DEG C.
This cable can meet the characteristics such as water resistant tree and cold-resistant, wear-resisting, high mechanical properties, can meet the requirement that the power circuit of wet environment lays and uses in cold district completely.Can be widely used in the 26/35kV power circuit of cold district.
Claims (6)
1. a longitudinal waterproof medium-pressure power cable, it is characterized in that: it comprises copper conductor and is coated on the semiconductive nylon tape of copper conductor outer surface, be coated on the conductor shield outside semi-conductive tape, be coated on the insulating barrier on conductor shield surface, be coated on the insulation screen of surface of insulating layer, be coated on the metal screen layer on insulation screen surface, for filling the waterproof filler in space, be coated on into the band on cable core surface, be coated on the inner sheath on band surface, be coated on the oversheath on inner sheath surface.
2. longitudinal waterproof medium-pressure power cable according to claim 1, is characterized in that: copper conductor is many stranded the forming of copper wire, and wherein fills water-proofing powder.
3. longitudinal waterproof medium-pressure power cable according to claim 1, is characterized in that: conductor shield forms for conduction polyolefin material extrudes.
4. longitudinal waterproof medium-pressure power cable according to claim 1, is characterized in that: insulating barrier is that water resistant tree XLPE Insulation Material extrudes and forms.
5. longitudinal waterproof medium-pressure power cable according to claim 1, is characterized in that: waterproof filler forms for the packing that blocks water adds the plasticine that blocks water.
6. longitudinal waterproof medium-pressure power cable according to claim 1, is characterized in that: inner sheath is that cold-resistant PVC protective cover material extrudes and forms, and oversheath forms for cold-resistant waterproof polyurethane elastomer extrudes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285867.1U CN203941756U (en) | 2014-05-30 | 2014-05-30 | Longitudinally waterproof medium-pressure power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285867.1U CN203941756U (en) | 2014-05-30 | 2014-05-30 | Longitudinally waterproof medium-pressure power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941756U true CN203941756U (en) | 2014-11-12 |
Family
ID=51861055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285867.1U Expired - Fee Related CN203941756U (en) | 2014-05-30 | 2014-05-30 | Longitudinally waterproof medium-pressure power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751979A (en) * | 2015-03-27 | 2015-07-01 | 安徽华电线缆集团有限公司 | Low voltage power cable installable under low temperature |
| WO2016206715A1 (en) * | 2015-06-23 | 2016-12-29 | Abb Schweiz Ag | Electric power cable and a process for the production of the power cable |
-
2014
- 2014-05-30 CN CN201420285867.1U patent/CN203941756U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751979A (en) * | 2015-03-27 | 2015-07-01 | 安徽华电线缆集团有限公司 | Low voltage power cable installable under low temperature |
| WO2016206715A1 (en) * | 2015-06-23 | 2016-12-29 | Abb Schweiz Ag | Electric power cable and a process for the production of the power cable |
| CN107980164A (en) * | 2015-06-23 | 2018-05-01 | Nkt Hv 电缆有限责任公司 | Electric power cable and the process for producing electric power cable |
| US10679772B2 (en) | 2015-06-23 | 2020-06-09 | Nkt Hv Cables Ab | Electric power cable and a process for the production of the power 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20180530 |