CN207489550U - A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension - Google Patents
A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension Download PDFInfo
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- CN207489550U CN207489550U CN201721538618.9U CN201721538618U CN207489550U CN 207489550 U CN207489550 U CN 207489550U CN 201721538618 U CN201721538618 U CN 201721538618U CN 207489550 U CN207489550 U CN 207489550U
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- copper clad
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Abstract
The utility model discloses a kind of anti-interference crosslinked polyetylene insulated medium-pressure power cables of tension, including three copper conductors, co-extruded cross-linking polyethylene insulation tube forms insulated wire cores outside three copper conductors, wrapped copper clad steel band shielded layer is put up in overlapping outside insulated wire cores, every layer is overlapped the width put up and is not less than wide 20% of steel band, and the wrapping angle of copper clad steel is not more than 30 °；Silicon rubber separation sleeve is externally provided in copper clad steel band shielded layer, silicon rubber separation sleeve is externally provided with environmentally friendly high fire-retardance alkali-free glass cloth braid over braid, non magnetic steel wire is externally provided in high fire-retardance alkali-free glass cloth braid over braid and adds armor of the non-magnetic steel with metal structure, is finally externally provided with polyvinyl fluoride oversheath in cable.The cable has that good insulation preformance, loss is low, service life is long, the characteristics such as anti-interference, and has many advantages, such as that bending radius is small, is easy to lay.
Description
Technical field
The utility model is related to electric wire fields, and in particular to a kind of anti-interference crosslinked polyetylene insulated middle piezoelectricity of tension
Power cable.
Background technology
Cable laying is not taken up an area face, space, be conducive to appearance of the city beauty in underground in city；Same buried cable leads to
Road, can accommodate multi circuit transmission lines, transmission capacity it is adaptable；Natural conditions（Such as thunder and lightning, wind and rain, salt fog, filth）And week
Influence of the collarette border to cable is smaller, and power supply reliability is high；Cable is hidden in underground, safer to the person；Physical loop cabinet,
The equipment such as distribution box can carry out multi-line contact, form supply network, and the method for operation is extremely flexible, can reduce power failure time significantly
Number and power failure range, distribution automation easy to implement.The system of laying that city inner cable uses at present generally mainly has direct-burried to apply
If, cable installation in pipe, cable duct laying, tunnel laying etc. modes, directly buried installation mode is most passed through in all underground laying modes
The system of laying that Ji, difficulty of construction are minimum, construction speed is most fast, but this system of laying cable is easily damaged, service life
It is short, directly affect the confidence level of this system of laying.
With increasing rapidly for national economy, cities and towns electricity consumption is continuously increased, and people constantly put forward the dependence of electric energy
Height, by present with the improvement of construction of cable form with improve the construction speed of the laying of cable, reduce because cable laying is applied
Work is to final purpose that the inconvenient time that civil plantation is brought is this project development.
Utility model content
In order to overcome the deficiencies in the prior art, provide that a kind of good insulation preformance, loss is low, service life is long, anti-
The crosslinked polyetylene insulated medium-pressure power cables of characteristics such as interference.
To achieve the above object, the utility model, which provides, hands over a kind of anti-interference crosslinked polyetylene insulated medium voltage electricity electricity of tension
Cable, including three copper conductors, co-extruded cross-linking polyethylene insulation tube forms insulated wire cores outside three copper conductors, outside insulated wire cores
Wrapped copper clad steel band shielded layer is put up in overlapping, and every layer is overlapped the width put up and is not less than wide 20% of steel band, the lapping angle of copper clad steel
Degree is no more than 30 °；Be externally provided with silicon rubber separation sleeve in copper clad steel band shielded layer, silicon rubber separation sleeve be externally provided with environmentally friendly high fire-retardance without
Alkali glass cloth braid over braid is externally provided with non magnetic steel wire in high fire-retardance alkali-free glass cloth braid over braid and adds non-magnetic steel with metal structure
Armor is finally externally provided with polyvinyl fluoride oversheath in cable.
Preferably, it blocks water between the silicon rubber separation sleeve and environmentally friendly high fire-retardance alkali-free glass cloth braid over braid equipped with PVC thin
Film can also play the role of blocking water.
Preferably, copper part of the copper clad steel with shielded layer is more than 99.95% oxygen-free copper, conductivity using purity
Not less than 102%, cable current capacity ensure that；The steel part of copper clad steel use No. 304 steel of austenite, because its for it is non magnetic not
Become rusty Steel material, can avoid the tape generated during alternating current transmission loss and eddy-current loss, and can preferably play shielding electric field
Effect.
Compared with prior art, the beneficial effects of the utility model are：
1st, insulation uses crosslinked polyetylene insulated pipe, instead of the structure that an existing conductor one insulate, not plasticizer-containing,
Bacterium will not be gone mouldy and grow, heat-resist, normal operating temperatures can be subjected to 110 DEG C of environment lower 8000 hours up to 95 DEG C,
Good pressure-resistant performance, corrosion resistance and good are amenable to the corrosion of most of chemicals, and good heat-insulation effect is energy saving, Neng Gouren
Meaning bending, will not embrittlement, under equal conditions, water flow is bigger than metal tube, and creep strength is high, can match metal tube, can save
Connecting pipe reduces installation cost, accelerates installation period, easy to repair, the key property of crosslinked polyethylene pipe is its intensity
And heat resistance, particularly its creep strength, intensity is not notable with the variation of usage time, and the service life was up to 50 years as long as.
2nd, the metal screen layer for setting copper clad steel, non magnetic steel wire are added into the structures shapes such as non-magnetic steel band metal armor layers
Formula, to reach good pull resistance, anti-interference, service life length and other effects.
3rd, compression strength is increased to 5000N/m by the 3000N/m of standard, and tensile capacity improves 35%；In cable laying
When, the hauling speed of cable is increased to 20m/min by 15m/min；The degree of eccentricity of insulated wire cores is not more than 15% as defined in standard
It is reduced within 5%.
4th, cable be for directly buried installation with cable there are the shortcomings that be improved, and increase new functional characteristics, make
Speed of application is improved, and the impaired probability of cable reduces, and it also has absolutely in work progress and normal course of operation
Edge performance is good, loss is low, service life is long, the characteristics such as anti-interference, and has many advantages, such as that bending radius is small, is easy to laying.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, art technology
Personnel fall within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figure 1, the utility model provides a kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension, including
Three copper conductors 1, co-extruded cross-linking polyethylene insulation tube 2 forms insulated wire cores outside three copper conductors, is overlapped outside insulated wire cores
Wrapped copper clad steel band shielded layer 3 is put up, every layer is overlapped the width put up and is not less than wide 20% of steel band, the wrapping angle of copper clad steel
No more than 30 °；Be externally provided with silicon rubber separation sleeve 4 in copper clad steel band shielded layer, silicon rubber separation sleeve be externally provided with environmentally friendly high fire-retardance without
Alkali glass cloth braid over braid 5 is externally provided with non magnetic steel wire in high fire-retardance alkali-free glass cloth braid over braid and adds non-magnetic steel band metal structure
Armor 7, be finally externally provided with polyvinyl fluoride oversheath 8 in cable.
In order to which cable is made to have better water resistance, the silicon rubber separation sleeve and environmentally friendly high fire-retardance alkali-free glass cloth are compiled
It blocks water film 6 equipped with PVC between ribbon.
Copper part of the copper clad steel with shielded layer is more than 99.95% oxygen-free copper using purity, and conductivity is not less than
102%, it ensure that cable current capacity；The steel part of copper clad steel uses No. 304 steel of austenite, because it is non-magnetic stainless steel material
Material can avoid the tape generated during alternating current transmission loss and eddy-current loss, and can preferably play the role of shielding electric field.
The cable be for directly buried installation with cable there are the shortcomings that be improved, and increase new functional characteristics, make
Speed of application is improved, and the impaired probability of cable reduces, and it also has absolutely in work progress and normal course of operation
Edge performance is good, loss is low, service life is long, the characteristics such as anti-interference, and has many advantages, such as that bending radius is small, is easy to laying.Gesture
Must urban aerial cable go underground laying-out transformation form under will bring vast potential for future development to enterprise.
The above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill people of this field
For member, under the premise of the utility model principle is not departed from, several variations and modifications can also be made, these also should be regarded as belonging to
In the scope of protection of the utility model.
Claims (3)
1. a kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension, it is characterised in that：Including three copper conductors, three
The outer co-extruded cross-linking polyethylene insulation tube of root copper conductor forms insulated wire cores, is overlapped outside insulated wire cores and puts up wrapped copper clad steel band screen
Layer is covered, every layer is overlapped the width put up and is not less than wide 20% of steel band, and the wrapping angle of copper clad steel is not more than 30 °；In copper clad steel band
Shielded layer is externally provided with silicon rubber separation sleeve, and silicon rubber separation sleeve is externally provided with environmentally friendly high fire-retardance alkali-free glass cloth braid over braid, in high resistant
Combustion alkali-free glass cloth braid over braid is externally provided with non magnetic steel wire and adds armor of the non-magnetic steel with metal structure, finally in cable peripheral hardware
There is polyvinyl fluoride oversheath.
2. the anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension according to claim 1, it is characterised in that：It is described
It blocks water film equipped with PVC between silicon rubber separation sleeve and environmentally friendly high fire-retardance alkali-free glass cloth braid over braid.
3. the anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension according to claim 1, it is characterised in that：It is described
Copper part of the copper clad steel with shielded layer using purity be more than 99.95% oxygen-free copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538618.9U CN207489550U (en) | 2017-11-17 | 2017-11-17 | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538618.9U CN207489550U (en) | 2017-11-17 | 2017-11-17 | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207489550U true CN207489550U (en) | 2018-06-12 |
Family
ID=62473952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721538618.9U Expired - Fee Related CN207489550U (en) | 2017-11-17 | 2017-11-17 | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207489550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731401A (en) * | 2017-11-17 | 2018-02-23 | 江苏凯达电缆有限公司 | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension |
-
2017
- 2017-11-17 CN CN201721538618.9U patent/CN207489550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731401A (en) * | 2017-11-17 | 2018-02-23 | 江苏凯达电缆有限公司 | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20191117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |