CN213123845U - Two-core outdoor power supply cable - Google Patents
Two-core outdoor power supply cable Download PDFInfo
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- CN213123845U CN213123845U CN202022036920.2U CN202022036920U CN213123845U CN 213123845 U CN213123845 U CN 213123845U CN 202022036920 U CN202022036920 U CN 202022036920U CN 213123845 U CN213123845 U CN 213123845U
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- outdoor power
- power cable
- wrapped outside
- core outdoor
- electric wires
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Abstract
The utility model discloses a two-core outdoor power cable, relating to the technical field of power cables; the protection device comprises a conductive part and a protection part wrapped outside the conductive part, wherein the conductive part comprises two electric wires; the wire comprises a lead with a D-shaped cross section and an insulating layer wrapped outside the lead; the insulating layer is made of irradiation cross-linked polyolefin; the electric wires are symmetrically arranged with the axial section of the protection part as the center. The utility model provides a two-core outdoor power cable, it is more durable, be difficult to ageing.
Description
Technical Field
The utility model belongs to the technical field of the power cable, in particular to two-core outdoor power cable.
Background
In recent years, with the increasing development of fireproof cables and the market demand of various cable enterprises and research institutes, more and more flexible fireproof cables are widely applied to high-rise buildings, petrochemical industry, airports, aerospace, parking lots, hospitals and other occasions.
However, the conventional cable has poor durability and is easily deteriorated by wind and sun in the open air.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned shortcoming of prior art, provide a two-core outdoor power cable, be difficult to ageing.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a two-core outdoor power supply cable comprises a conductive part and a protection part wrapped outside the conductive part, wherein the conductive part comprises two electric wires; the wire comprises a lead with a D-shaped cross section and an insulating layer wrapped outside the lead; the insulating layer is made of irradiation cross-linked polyolefin; the electric wires are symmetrically arranged with the axial section of the protection part as the center. Radiation crosslinked polyolefins are more durable.
Preferably, the protection part comprises a fire-resistant layer wrapped outside the conductive part, a shielding layer wrapped outside the fire-resistant layer, and a sheath wrapped outside the shielding layer.
Preferably, the material of the fire-resistant layer is ceramic silicon rubber. The ceramic silicon rubber can resist the high temperature of more than 1000 ℃, simultaneously the heat emitted after combustion is relatively small, and the ceramic silicon rubber is hardened after combustion, does not generate drops and has good fire resistance.
Preferably, the shielding layer is made of a tin-plated woven mesh.
Preferably, the material of the sheath is radiation cross-linked polyolefin. So that the utility model is more durable.
Preferably, the wires are in clearance fit, and the wires are filled with filling ropes.
Preferably, a supporting pipe is further arranged between the electric wires, a plurality of first holes are formed in the supporting pipe, the supporting pipe is made of ceramic silicon rubber, a plurality of second holes are formed in the upper side of the protection portion, a rainproof cover plate is arranged on the upper cover of each second hole, one end of the rainproof cover plate is connected to the sheath, the rainproof cover plate is made of irradiation cross-linked polyolefin, and the lower end of each second hole is located between the two electric wires.
The utility model has the advantages that: the utility model provides a two-core outdoor power cable is difficult to produce the drippage, and the fire proofness is good.
Drawings
FIG. 1 is a schematic view of example 1;
FIG. 2 is a schematic view of example 2.
In the figure: the waterproof cable comprises a lead 1, an insulating layer 2, a fire-resistant layer 4, a shielding layer 5, a sheath 6, a filling rope 7, a supporting tube 8, a first hole 9, a second hole 10 and a rainproof cover plate 11.
Detailed Description
The invention will be further explained in detail with reference to the drawings and the following detailed description:
example 1:
referring to fig. 1, a two-core outdoor power cable includes a conductive portion and a protection portion wrapped outside the conductive portion, wherein the conductive portion includes two electric wires; the wire comprises a lead 1 with a D-shaped cross section and an insulating layer 2 wrapped outside the lead 1; the insulating layer 2 is made of irradiation cross-linked polyolefin; the electric wires are symmetrically arranged with the axial section of the protection part as the center.
The protection part comprises a fire-resistant layer 4 wrapped outside the conductive part, a shielding layer 5 wrapped outside the fire-resistant layer 4, and a sheath 6 wrapped outside the shielding layer 5.
The material of the fire-resistant layer 4 is ceramic silicon rubber. The shielding layer 5 is made of a tin-plated wire woven mesh. The material of the sheath 6 is irradiation cross-linked polyolefin.
Principle of embodiment:
adopt the wire 1 of D font, can reduce the radius of power cable, simultaneously, the high temperature that the pottery silicon rubber can tolerate more than 1000 degrees centigrade, and the heat that emits after the burning is relative little simultaneously to the sclerosis after the burning can not produce the drippage, has fine fire proofness, and sheath 6 adopts irradiation cross-linked polyolefin more durable.
Example 2:
referring to fig. 2, a two-core outdoor power cable includes a conductive portion and a protection portion wrapped outside the conductive portion, wherein the conductive portion includes two electric wires; the wire comprises a lead 1 with a D-shaped cross section and an insulating layer 2 wrapped outside the lead 1; the insulating layer 2 is made of irradiation cross-linked polyolefin; the electric wires are symmetrically arranged with the axial section of the protection part as the center.
The protection part comprises a fire-resistant layer 4 wrapped outside the conductive part, a shielding layer 5 wrapped outside the fire-resistant layer 4, and a sheath 6 wrapped outside the shielding layer 5.
The material of the fire-resistant layer 4 is ceramic silicon rubber. The shielding layer 5 is made of a tin-plated wire woven mesh. The sheath 6 is made of irradiation cross-linked polyolefin, the wires are in clearance fit, and the filling ropes 7 are filled between the wires. Still be equipped with the stay tube 8 between the electric wire, be equipped with a plurality of first holes 9 on the stay tube 8, the material of stay tube 8 is ceramic silicon rubber, the guard portion upside is equipped with a plurality of second holes 10, second hole 10 upper cover is equipped with rain-proof apron 11, the one end of rain-proof apron 11 is connected on sheath 6, the material of rain-proof apron 11 is irradiation cross-linked polyolefin, the lower extreme of second hole 10 is located between two electric wires.
Principle of embodiment:
the flame retardant coating can shrink after the burning, and at this moment, two electric wire intervals reduce, and the stay tube shrink, and the inside air of guard division can be followed the second hole and gone out to prevented the fracture of flame retardant coating, and then prevented that the inside thing of guard division from dropping. The rain-proof cover plate 11 prevents rain water from entering the inside of the protection part.
Claims (7)
1. A two-core outdoor power cable comprises a conductive part and a protection part wrapped outside the conductive part, and is characterized in that,
the conductive portion includes two electric wires;
the wire comprises a lead with a D-shaped cross section and an insulating layer wrapped outside the lead;
the insulating layer is made of irradiation cross-linked polyolefin;
the electric wires are symmetrically arranged with the axial section of the protection part as the center.
2. The two-core outdoor power cable according to claim 1, wherein the protection part comprises a fire-resistant layer wrapped outside the conductive part, a shielding layer wrapped outside the fire-resistant layer, and a sheath wrapped outside the shielding layer.
3. The two-core outdoor power cable according to claim 2, wherein the fire-resistant layer is made of ceramic silicone rubber.
4. The two-core outdoor power cable according to claim 2, wherein the shielding layer is made of a tin-plated woven mesh.
5. The two-core outdoor power cable according to claim 2, wherein the material of the sheath is radiation cross-linked polyolefin.
6. A two-core outdoor power cable according to claim 1, wherein said wires are clearance-fitted and filled with a filler cord.
7. The two-core outdoor power cable according to claim 6, wherein a supporting tube is further arranged between the electric wires, a plurality of first holes are formed in the supporting tube, the supporting tube is made of ceramic silicon rubber, a plurality of second holes are formed in the upper side of the protecting portion, a rainproof cover plate is arranged on the upper cover of each second hole, one end of the rainproof cover plate is connected to the protecting sleeve, the rainproof cover plate is made of radiation cross-linked polyolefin, and the lower end of each second hole is located between the two electric wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022036920.2U CN213123845U (en) | 2020-09-16 | 2020-09-16 | Two-core outdoor power supply cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022036920.2U CN213123845U (en) | 2020-09-16 | 2020-09-16 | Two-core outdoor power supply cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213123845U true CN213123845U (en) | 2021-05-04 |
Family
ID=75662890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022036920.2U Active CN213123845U (en) | 2020-09-16 | 2020-09-16 | Two-core outdoor power supply cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213123845U (en) |
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2020
- 2020-09-16 CN CN202022036920.2U patent/CN213123845U/en active Active
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