CN211957175U - Explosion-proof fireproof cable - Google Patents
Explosion-proof fireproof cable Download PDFInfo
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- CN211957175U CN211957175U CN202020833572.9U CN202020833572U CN211957175U CN 211957175 U CN211957175 U CN 211957175U CN 202020833572 U CN202020833572 U CN 202020833572U CN 211957175 U CN211957175 U CN 211957175U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model relates to an explosion-proof fireproof cable, include: the multi-strand cable core comprises a conductor, and a low-capacitance insulating layer, a sub-shielding layer and a reinforcing layer are sequentially coated outside the conductor from inside to outside; the outer jacket, the outer jacket cladding is in all cable cores outsides, and the outer jacket includes total shielding layer, insulating layer, dual water barrier, ring protective sheath by inside to outside in proper order. The low capacitance and low inductance of the low capacitance insulating layer of the utility model make the energy stored in the cable smaller, reduce the energy of electric spark generated during fault and reduce the potential safety hazard; the sub-shielding layer and the total shielding layer play double roles of resisting static electricity, magnetic field and other interference, free electrons stored in the cable can be released, the energy of electric sparks is further reduced, and potential safety hazards are reduced; the double water-proof layer can play a better water-proof role when being wetted, thereby avoiding the erosion or deliquescence of the heat-insulating layer caused by water vapor and ensuring the heat-insulating and fireproof performances.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to an explosion-proof fireproof cable.
Background
The application range of the fireproof cable is wide, the fireproof cable comprises industrial environments with severe environments, when the existing fireproof cable is applied to the environments, although the fireproof performance of the existing fireproof cable generally can meet the strict use requirement, due to poor explosion-proof performance, when the existing fireproof cable is applied to the environments with flammable and explosive gases and circuit faults occur, the generated electric spark energy is large, so that explosion is easy to cause, and certain potential safety hazards exist.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing an explosion-proof fireproof cable.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
an explosion-proof, fire-resistant cable comprising:
the multi-strand cable core comprises a conductor, and a low-capacitance insulating layer, a sub-shielding layer and a reinforcing layer are sequentially coated outside the conductor from inside to outside;
the outer jacket, the outer jacket cladding is in all cable cores outsides, and the outer jacket includes total shielding layer, insulating layer, dual water barrier, ring protective sheath by inside to outside in proper order.
Furthermore, the conductor in the single-stranded cable core is formed by twisting a plurality of wires.
Furthermore, insulating fillers are filled among the leads of the conductor and between the conductor and the low-capacitance insulating layer, and the insulating fillers are made of ceramic silicon rubber.
Furthermore, fireproof fillers are filled among the multi-strand cable cores and between the cable cores and the total shielding layer.
Furthermore, the reinforcing layer is made of glass fiber in a wrapping mode.
Further, the low-capacitance insulating layer is made of high-density polyethylene.
Furthermore, the double waterproof layers are sequentially manufactured by wrapping waterproof tapes and wrapping waterproof ropes from inside to outside.
Furthermore, the heat insulation layer is manufactured by wrapping mica tapes.
Furthermore, the total shielding layer is a copper mesh woven shielding layer, and the sub-shielding layers are aluminum foil shielding layers.
Furthermore, steel stranded wires are stranded among the multiple cable cores.
The utility model has the advantages that: the low capacitance and low inductance of the low capacitance insulating layer of the utility model make the energy stored in the cable smaller, reduce the energy of electric spark generated during fault and reduce the potential safety hazard; the sub-shielding layer and the total shielding layer play double roles of resisting static electricity, magnetic field and other interference, free electrons stored in the cable can be released, the energy of electric sparks is further reduced, and potential safety hazards are reduced; the double water-proof layer can play a better water-proof role when being wetted, thereby avoiding the erosion or deliquescence of the heat-insulating layer caused by water vapor and ensuring the heat-insulating and fireproof performances.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-a cable core; 11-a conductor; 12-low capacitance insulating layer; 13-separating a shielding layer; 14-a reinforcement layer; 15-insulating filler; 2-an outer protective layer; 21-total shield layer; 22-a thermally insulating layer; 23-double water barrier; 24-ring protective sleeve; 25-a fire-retardant filler; 3-steel strand wires;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown, an explosion-proof and fire-proof cable includes:
the multi-strand cable core 1 is characterized in that a single-strand cable core 1 comprises a conductor 11, and a low-capacitance insulating layer 12, a sub-shielding layer 13 and a reinforcing layer 14 are sequentially coated outside the conductor 11 from inside to outside;
the outer jacket 2, outer jacket 2 cladding are in all cable cores 1 outsides, and outer jacket 2 includes total shielding layer 21, insulating layer 22, dual water barrier 23, ring sheath 24 from inside to outside in proper order.
Furthermore, the conductor 11 in the single-stranded cable core 1 is formed by twisting a plurality of wires.
Furthermore, insulating fillers 15 are filled between the leads of the conductor 11 and between the conductor 11 and the low-capacitance insulating layer 12, and the insulating fillers 15 are made of ceramic silicon rubber.
Furthermore, fireproof fillers 25 are filled between the multi-strand cable cores 1 and between the cable cores 1 and the total shielding layer 21.
Further, the reinforcing layer 14 is made of glass fiber wrapping.
Further, the low-capacitance insulating layer 12 is high-density polyethylene.
Further, the double waterproof layer 23 is sequentially formed by wrapping a waterproof tape and wrapping a waterproof rope from inside to outside.
Further, the heat insulation layer 22 is made by wrapping mica tapes.
Further, the total shielding layer 21 is a copper mesh braided shielding layer, and the sub-shielding layer 13 is an aluminum foil shielding layer.
Furthermore, a steel strand 3 is twisted among the multiple cable cores 1.
When the utility model is used, the energy stored in the cable is smaller due to the characteristics of low capacitance and low inductance of the low capacitance insulating layer 12, thereby reducing the energy of electric sparks generated during faults and reducing the potential safety hazard; the sub-shielding layer 13 and the total shielding layer 22 play double roles of resisting static electricity, magnetic field and other interference, free electrons stored in the cable can be released, the energy of electric sparks is further reduced, and potential safety hazards are reduced; the double water-proof layer 23 can play a good water-proof role when being affected with damp, thereby avoiding the corrosion or deliquescence of the heat-insulating layer 22 caused by water vapor and ensuring the heat-insulating and fireproof performances.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. An explosion-proof and fire-proof cable, comprising:
the multi-strand cable core (1), the single-strand cable core (1) comprises a conductor (11), and a low-capacitance insulating layer (12), a sub-shielding layer (13) and a reinforcing layer (14) are sequentially coated outside the conductor (11) from inside to outside;
outer jacket (2), outer jacket (2) cladding is in all cable cores (1) the outside, and outer jacket (2) includes total shielding layer (21), insulating layer (22), dual water barrier (23), ring sheath (24) from inside to outside in proper order.
2. Explosion-proof and fireproof cable according to claim 1, wherein the conductor (11) in the single-stranded cable core (1) is stranded from a plurality of wires.
3. The explosion-proof and fireproof cable according to claim 2, wherein the insulating filler (15) is filled between the wires of the conductor (11) and between the conductor (11) and the low-capacitance insulating layer (12), and the insulating filler (15) is made of ceramic silicone rubber.
4. Explosion-proof and fireproof cable according to claim 1, characterized in that the fireproof filling (25) is filled between the multi-strand cable cores (1) and between the cable cores (1) and the total shielding layer (21).
5. Explosion-proof and fireproof cable according to claim 1, wherein the reinforcing layer (14) is made of glass fibre wrapping.
6. Explosion-proof and fire-proof cable according to claim 1, characterized in that the low-capacitance insulation layer (12) is high-density polyethylene.
7. The explosion-proof and fireproof cable of claim 1, wherein the double water-proof layer (23) is made by sequentially wrapping water-proof tape and water-proof rope from inside to outside.
8. Explosion-proof and fireproof cable according to claim 1, wherein the insulating layer (22) is wrapped with mica tape.
9. Explosion-proof and fireproof cable according to claim 1, wherein the total shield layer (21) is a copper mesh braided shield layer and the partial shield layer (13) is an aluminum foil shield layer.
10. Explosion-proof and fireproof cable according to claim 1, characterized in that steel strands (3) are twisted between the multi-strand cable cores (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020833572.9U CN211957175U (en) | 2020-05-19 | 2020-05-19 | Explosion-proof fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020833572.9U CN211957175U (en) | 2020-05-19 | 2020-05-19 | Explosion-proof fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211957175U true CN211957175U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020833572.9U Active CN211957175U (en) | 2020-05-19 | 2020-05-19 | Explosion-proof fireproof cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN211957175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112700921A (en) * | 2020-12-21 | 2021-04-23 | 欧耐特线缆集团有限公司 | Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof |
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2020
- 2020-05-19 CN CN202020833572.9U patent/CN211957175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112700921A (en) * | 2020-12-21 | 2021-04-23 | 欧耐特线缆集团有限公司 | Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof |
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