CN201681654U - Electric power cable for flexible emergency disposal of medium-voltage bypass - Google Patents
Electric power cable for flexible emergency disposal of medium-voltage bypass Download PDFInfo
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- CN201681654U CN201681654U CN2010201363616U CN201020136361U CN201681654U CN 201681654 U CN201681654 U CN 201681654U CN 2010201363616 U CN2010201363616 U CN 2010201363616U CN 201020136361 U CN201020136361 U CN 201020136361U CN 201681654 U CN201681654 U CN 201681654U
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Abstract
The utility model discloses an electric power cable for the flexible emergency disposal of a medium-voltage bypass, which consequentially consists of a cable core, a composite shielding layer and an outer protective layer from inside to outside, the cable core consists of a soft conductor twisted by multi-strands of conductors, a semi-conducting belt, a conductor semi-conducting layer extruded and covered outside the semi-conducting belt, and a cross linking polyethylene insulated and extruded and covered insulation semi-conducting layer which are sequentially arranged from inside to outside, the composite shielding layer consequentially consists of an insulation semi-conducting belt, a semi-conducting belt layer, a copper weaving shielding layer formed by weaving and cladding a plurality of soft copper wires outside the semi-conducting belt layer and a soft copper belt wound outside the copper wire woven shielding layer from inside to outside, and the outer protective layer consists of a covering belt and a polyethylene outer protective sleeve externally extruded and covered by the covering belt. The medium-voltage bypass electric power cable of the utility model has the emergency stress capability, improves the safety and the reliability when in use, ensures the safety of persons and equipment, saves a large amount of energy source consumption, and reduces the discharge quantity of contaminants.
Description
Technical field
The utility model relates to a kind of power cable, is specially the flexible emergency disposal power cable of a kind of intermediate pressure by-pass, belongs to the power cable field.
Background technology
When serious natural calamity such as the deficiency of urban distribution network maintenance at present, emergency service and generator car and ice and snow, rainwater, earthquake and sudden grid equipment operation troubles, rush to repair in the disaster relief process to ensureing that the supply of electric power whole piece circuit that normally breaks rushes to repair and safeguard people, using more emergency first-aid repair measure then is to adopt diesel engine generator as interim power supply, its weak point is: 1) the diesel generation capacity is little, and radius of electricity supply is little; 2) big, the air of energy consumption and noise pollution is serious, fuel cost is high, maintenance cost height; 3) be subjected to tunnel, the city condition restriction of passing through, can not in time arrive the repairing place; 4) generator car are in running, and vibrations are big, easily car body and equipment caused damage.
The utility model content
The purpose of this utility model is in order to provide a kind of intermediate pressure by-pass flexible emergency disposal power cable, to solve the problems referred to above of prior art.
The purpose of this utility model can be achieved through the following technical solutions.
The flexible emergency disposal power cable of a kind of intermediate pressure by-pass, it is followed successively by cable core, composite shielding layer and external protection from inside to outside; Described cable core is followed successively by outward by the lining: the conductor semi-conductive layer that is extruded outward by the stranded flexible conductor of multiply conductor, semi-conductive tape, semi-conductive tape, the crosslinked polyetylene insulated and insulation semi-conductive layer that extrudes; Described composite shielding layer is followed successively by outward by the lining: insulation semi-conductive tape, semiconductive belt, some soft copper wire braidings are coated on the outer copper wire woven shield of semiconductive belt and are wound in the outer soft copper band of copper wire woven shield to be formed; External protection is made up of the polyolefin oversheath that band and band extrude outward.
Described copper wire woven shield external series gap is surrounded with the soft copper band continuously.
Press the use of flexible bypass power cable in being somebody's turn to do, not only can increase substantially the emergent adaptability to changes of urban electricity supply company maneuverability ground reply natural calamity and electrical network burst accident, also increase substantially power failure working system technical merit and technical equipment, further strengthen and improve that the city power distribution system is active, the countermeasure type, coordinate the Prevention-Security system of control type, effectively ensure urban distribution network safety, stable, economical production operation; And, effectively the assurance power supply is sent to each user continuously by bypath system on the one hand, the repairing personnel are actually repairing operation or equipment replacement operation in the zone that has a power failure on the other hand, because of the special shielding harness of cable, security reliability when having improved use is greatly guaranteed the person and the safety of equipment.Particularly long in the activity duration, the repairing difficulty is big, road conditions difference etc. in particular cases, can replace diesel engine generator fully, save a large amount of energy resource consumptions, minimizing pollutant discharge amount, and accomplish that seasonable, emergent, disposal reaches characteristics such as efficient height flexibly.
Description of drawings
Fig. 1 is a cross-sectional structure schematic diagram of the present utility model;
Among the figure: 1, flexible conductor 2, semi-conductive tape 3, conductor semi-conductive layer 4, crosslinked polyetylene insulated 5, insulation semi-conductive layer 6, semiconductive belt 7, copper wire woven shield 8, soft copper band 9, band 10, polyolefin oversheath.
Embodiment
Further set forth design feature of the present utility model below in conjunction with accompanying drawing and specific embodiment.
The flexible emergency disposal power cable of a kind of intermediate pressure by-pass as shown in Figure 1, it is followed successively by cable core, composite shielding layer and external protection from inside to outside; Described cable core is followed successively by outward by the lining: by the stranded flexible conductor 1 of multiply conductor, semi-conductive tape 2, the semi-conductive tape 2 outer conductor semi-conductive layers 3 that extrude, crosslinked polyetylene insulated 4 and the insulation semi-conductive layer 5 that extrudes; Described composite shielding layer is followed successively by outward by the lining: 5 outer semiconductive belt 6, the some soft copper wire braidings of insulation semi-conductive tape are coated on the copper wire woven shield 7 outside the semiconductive belt 6 and are wound in copper wire woven shield 7 outer soft copper bands 8 to be formed; External protection is made up of band 9 and the band 9 outer polyolefin oversheaths 10 that extrude.
Described copper wire woven shield 7 external series gaps are surrounded with soft copper band 8 continuously.
Conductor of the present utility model is to form by the multiply flexible conductor is stranded, and cable core then is made up of the conductor semi-conductive layer that extrudes, insulation semi-conductive layer crosslinked polyetylene insulated, that extrude, and these three layers once extrude and finish.Outside the insulation semi-conductive layer, then form the composition metal shielding layer structure by semi-conductive tape and the braiding of some soft copper wires and the wrapped soft copper band of continuous gap, improved shield effectiveness and line security greatly, can select composite shielding layer structure and size according to the size of leakage current.The utility model particularly is applied to the cable of the flexible emergency first-aid repair power circuit of 8.7/15kV XLPE bypass.
Claims (2)
1. the flexible emergency disposal power cable of an intermediate pressure by-pass, it is followed successively by cable core, composite shielding layer and external protection from inside to outside; It is characterized in that: described cable core is followed successively by outward by the lining: the conductor semi-conductive layer that is extruded outward by the stranded flexible conductor of multiply conductor, semi-conductive tape, semi-conductive tape, the crosslinked polyetylene insulated and insulation semi-conductive layer that extrudes; Described composite shielding layer is followed successively by outward by the lining: insulation semi-conductive tape, semiconductive belt, some soft copper wire braidings are coated on the outer copper wire woven shield of semiconductive belt and are wound in the outer soft copper band of copper wire woven shield to be formed; External protection is made up of the polyolefin oversheath that band and band extrude outward.
2. the flexible emergency disposal power cable of a kind of intermediate pressure by-pass according to claim 1, it is characterized in that: copper wire woven shield external series gap is surrounded with the soft copper band continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363616U CN201681654U (en) | 2010-03-19 | 2010-03-19 | Electric power cable for flexible emergency disposal of medium-voltage bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363616U CN201681654U (en) | 2010-03-19 | 2010-03-19 | Electric power cable for flexible emergency disposal of medium-voltage bypass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681654U true CN201681654U (en) | 2010-12-22 |
Family
ID=43346691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201363616U Expired - Fee Related CN201681654U (en) | 2010-03-19 | 2010-03-19 | Electric power cable for flexible emergency disposal of medium-voltage bypass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099758A (en) * | 2016-08-18 | 2016-11-09 | 国网湖南省电力公司带电作业中心 | System is built in the bypass of a kind of agriculture distribution line |
-
2010
- 2010-03-19 CN CN2010201363616U patent/CN201681654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099758A (en) * | 2016-08-18 | 2016-11-09 | 国网湖南省电力公司带电作业中心 | System is built in the bypass of a kind of agriculture distribution line |
| CN106099758B (en) * | 2016-08-18 | 2017-10-20 | 国网湖南省电力公司带电作业中心 | System is built in a kind of bypass of agriculture distribution line |
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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: 20101222 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |