CN207602258U - A kind of cold-resistant frequency-conversion power cable - Google Patents
A kind of cold-resistant frequency-conversion power cable Download PDFInfo
- Publication number
- CN207602258U CN207602258U CN201721602206.7U CN201721602206U CN207602258U CN 207602258 U CN207602258 U CN 207602258U CN 201721602206 U CN201721602206 U CN 201721602206U CN 207602258 U CN207602258 U CN 207602258U
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- cold
- resistant
- outside
- resistant polyethylene
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Abstract
The utility model is related to a kind of cold-resistant frequency-conversion power cables, cable core is formed including 3 leading bodies and 3 neutral conductor bundle strands, the outside of the cable core is equipped with stranding belting layer, Ceramic silicon rubber layer is provided on the outside of the stranding belting layer, metal screen layer is provided with outside the Ceramic silicon rubber layer, cold-resistant polyethylene layer is provided on the outside of the metal screen layer, the outer surface of the cold-resistant polyethylene layer is equipped with several salient points, several described salient points are evenly distributed on the outer surface of the cold-resistant polyethylene layer, the diameter of the salient point is less than or equal to 3mm, and the quantity of the salient point on cold-resistant polyethylene layer every square centimeter is at least 3.For the utility model by the cold-resistant polyethylene layer of setting, cold-resistant polyethylene is not in the situation of cracking under cryogenic, thus the cold-resistant polyethylene layer of cable will not cracking, and can ensure that cable inside is intact, ensure the normal use under the cryogenic conditions of cable.
Description
Technical field
The utility model is related to a kind of cold-resistant frequency-conversion power cables, belong to cable protection technical field.
Background technology
With the gradual development of cable industry, cable is used for the various aspects of people's life, especially in cold district,
Cable can usually cause insulation bursting by freezing to lead to the generation of accident because of low temperature.
Utility model content
Of the existing technology in order to solve the problems, such as, the utility model provides a kind of cold-resistant frequency-conversion power cable, mainly
Improve the low temperature resistant characteristic of cable itself.
Technical solution is used by the utility model：
A kind of cold-resistant frequency-conversion power cable, including 3 leading bodies and 3 neutral conductors, 3 leading bodies and 3 institutes
It states neutral conductor to be centrosymmetric setting, the first mica layer is enclosed on the outside of the leading body and the neutral conductor,
Crosslinked polyetylene insulated layer is enclosed on the outside of first mica layer, the number of plies of first mica layer is 2 layers, described in 3
Leading body and 3 neutral conductors are used forms cable core with core type bundle strand, and the outside of the cable core is equipped with stranding belting layer, institute
It states and Ceramic silicon rubber layer is provided on the outside of stranding belting layer, metal screen layer is provided with outside the Ceramic silicon rubber layer,
Cold-resistant polyethylene layer is provided on the outside of the metal screen layer, the cross section of the stranding band layer by layer is circular ring shape, described
Expanding powder is filled in gap between cable core and the stranding belting layer；If the outer surface of the cold-resistant polyethylene layer is equipped with
Dry salient point, several described salient points are evenly distributed on the outer surface of the cold-resistant polyethylene layer, and the diameter of the salient point is small
In equal to 3mm, and the quantity of the salient point on cold-resistant polyethylene layer every square centimeter is at least 3.
Preferably, it is additionally provided with the second mica layer between the metal screen layer and the cold-resistant polyethylene layer, described
The number of plies of two mica layers is 1 layer.
Further, the first waterstop can be equipped between first mica layer and the crosslinked polyetylene insulated layer
Layer, the number of plies of first water blocking tape layer is 2 layers.
Further, the second water blocking tape layer can be provided between second mica layer and the cold-resistant polyethylene layer,
The number of plies of second water blocking tape layer is 1 layer.
In general, the leading body and the neutral conductor are made of oxygen-free copper bar.
The beneficial effects of the utility model：
The utility model is not in the feelings of cracking under cryogenic by the cold-resistant polyethylene layer of setting, cold-resistant polyethylene
Condition, thus the cold-resistant polyethylene layer of cable will not cracking, and can ensure that cable inside is intact, under the cryogenic conditions for ensureing cable
Normal use.
The setting of salient point, when needing to wrap up cable, salient point can increasing friction force, it is convenient that cable is wrapped
It wraps up in.
Description of the drawings
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the sectional view of leading body；
Fig. 3 is the front view of cable part.
Wherein：1st, leading body；2nd, neutral conductor；3rd, expanding powder；4th, stranding belting layer；5th, Ceramic silicon rubber layer；6th, it is golden
Belong to shielded layer；7th, the second mica layer；8th, the second water blocking tape layer；9th, resist cold polyethylene layer；10th, the first mica layer；11st, it first blocks water
Belt；12nd, crosslinked polyetylene insulated layer；13rd, salient point.
Specific embodiment
Referring to Fig. 1, the utility model provides a kind of cold-resistant frequency-conversion power cable, including 3 leading bodies 1 and 3 neutrality
2,3 leading bodies 1 of conductor and 3 neutral conductors 2 are centrosymmetric setting, the leading body 1 and the neutrality
The outside of conductor 2 is enclosed with the first mica layer 10, and crosslinked polyetylene insulated layer is enclosed in the outside of first mica layer 10
12, the number of plies of first mica layer 10 is 2 layers, and 3 leading bodies 1 and 3 neutral conductors 2 are using the same as core type bundle strand
Cable core is formed, the outside of the cable core is equipped with stranding belting layer 4, and the outside of the stranding belting layer 4 is provided with ceramic SiClx rubber
Glue-line 5, is provided with metal screen layer 6 outside the Ceramic silicon rubber layer 5, and the outside of the metal screen layer 6 is provided with cold-resistant
Polyethylene layer 9, the cross section of 4 layers of the stranding belting layer are circular ring shape, between the cable core and the stranding belting layer 4 between
Expanding powder 3 is filled in gap；The outer surface of the cold-resistant polyethylene layer 9 is equipped with several salient points 13, several described salient points
13 are evenly distributed on the outer surface of the cold-resistant polyethylene layer 9, and the diameter of the salient point 13 is less than or equal to 3mm, and every square
Centimetre cold-resistant polyethylene layer 9 on the quantity of salient point 13 be at least 3.
For the utility model by the cold-resistant polyethylene layer 9 of setting, the polyethylene that resists cold is not in cracking under cryogenic
Situation, thus the cold-resistant polyethylene layer 9 of cable will not cracking, and can ensure that cable inside is intact, ensure the cryogenic conditions of cable
Under normal use.
Cable is under the open-air condition of low temperature, is usually associated with and is blown, and under cryogenic, wind is to the outer layer of cable
(cold-resistant polyethylene layer 9) has destruction, influences the service life of cold-resistant polyethylene layer 9, thus people are toward back in cable
Upper protection band is wound on outer surface, prevents erosion of the wind to cable, and by setting salient point 13, be more convenient protection band and cable
Attachment, it is convenient to wind protection band in the outer surface of cable by way of increasing friction force.
The second mica layer 7, second cloud are additionally provided between the metal screen layer 6 and the cold-resistant polyethylene layer 9
The number of plies of mother layer 7 is 1 layer.
The first water blocking tape layer 11, institute can be equipped between first mica layer 10 and the crosslinked polyetylene insulated layer 12
The number of plies for stating the first water blocking tape layer 11 is 2 layers.
It can be provided with the second water blocking tape layer 8 between second mica layer 7 and the cold-resistant polyethylene layer 9, described
The number of plies of two water blocking tape layers 8 is 1 layer.
The leading body 1 and the neutral conductor 2 are made of oxygen-free copper bar.The utility model mainly solve low cigarette without
3 problems of halogen sheath frequency-conversion power cable, respectively, the heat dissipation problem of cable, the waterproof problem of cable and fireproofing of cable
Problem.
The utility model is by setting the first water blocking tape layer 11 and the second water blocking tape layer 8, water blocking tape layer to have the energy of waterproof
Power when cable occurs damaged, can prevent moisture from entering by water blocking tape layer, ensure power supply safety.
The setting of expanding powder 3, when there is broken hole on stranding belting layer 4, moisture can connect through the broken hole with expanding powder 3
It touches, expanding powder 3 will block the broken hole after expanding, and so as to prevent moisture from continuing to penetrate into, ensure power supply safety.
First mica layer 10 and the second mica layer 7 all have the function of fireproof, and Ceramic silicon rubber layer 5 also has certain
Fire resistance property.
Claims (5)
1. a kind of cold-resistant frequency-conversion power cable, including 3 leading bodies and 3 neutral conductors, it is characterised in that：3 described leading
Body and 3 neutral conductors are centrosymmetric setting, and first is enclosed on the outside of the leading body and the neutral conductor
Mica layer is enclosed with crosslinked polyetylene insulated layer on the outside of first mica layer, and the number of plies of first mica layer is 2
Layer, 3 leading bodies and 3 neutral conductors are used forms cable core with core type bundle strand, the outside of the cable core be equipped with into
Cable belting layer is provided with Ceramic silicon rubber layer on the outside of the stranding belting layer, is provided with outside the Ceramic silicon rubber layer
Metal screen layer is provided with cold-resistant polyethylene layer on the outside of the metal screen layer, and the cross section of the stranding belting layer is circle
Annular is filled with expanding powder in the gap between the cable core and the stranding belting layer；The appearance of the cold-resistant polyethylene layer
Face is equipped with several salient points, several described salient points are evenly distributed on the outer surface of the cold-resistant polyethylene layer, described convex
The diameter of point is less than or equal to 3mm, and the quantity of the salient point on cold-resistant polyethylene layer every square centimeter is at least 3.
2. a kind of cold-resistant frequency-conversion power cable according to claim 1, it is characterised in that：The metal screen layer with it is described
The second mica layer is additionally provided between cold-resistant polyethylene layer, the number of plies of second mica layer is 1 layer.
3. a kind of cold-resistant frequency-conversion power cable according to claim 2, it is characterised in that：First mica layer with it is described
The first water blocking tape layer is equipped between crosslinked polyetylene insulated layer, the number of plies of first water blocking tape layer is 2 layers.
4. a kind of cold-resistant frequency-conversion power cable according to claim 3, it is characterised in that：Second mica layer with it is described
The second water blocking tape layer is provided between cold-resistant polyethylene layer, the number of plies of second water blocking tape layer is 1 layer.
5. a kind of cold-resistant frequency-conversion power cable according to claim 4, it is characterised in that：The leading body and the neutrality
Conductor is made of oxygen-free copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602206.7U CN207602258U (en) | 2017-11-25 | 2017-11-25 | A kind of cold-resistant frequency-conversion power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602206.7U CN207602258U (en) | 2017-11-25 | 2017-11-25 | A kind of cold-resistant frequency-conversion power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602258U true CN207602258U (en) | 2018-07-10 |
Family
ID=62761165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602206.7U Expired - Fee Related CN207602258U (en) | 2017-11-25 | 2017-11-25 | A kind of cold-resistant frequency-conversion power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602258U (en) |
-
2017
- 2017-11-25 CN CN201721602206.7U patent/CN207602258U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20181125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |