CN220252897U - Halogen-free low-smoke flame-retardant polyolefin sheath power cable - Google Patents
Halogen-free low-smoke flame-retardant polyolefin sheath power cable Download PDFInfo
- Publication number
- CN220252897U CN220252897U CN202320684865.9U CN202320684865U CN220252897U CN 220252897 U CN220252897 U CN 220252897U CN 202320684865 U CN202320684865 U CN 202320684865U CN 220252897 U CN220252897 U CN 220252897U
- Authority
- CN
- China
- Prior art keywords
- layer
- flame retardant
- halogen
- free low
- power cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 84
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 25
- 239000000779 smoke Substances 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 230000009970 fire resistant effect Effects 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 7
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 84
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 10
- 238000005728 strengthening Methods 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011850 water-based material Substances 0.000 description 1
Abstract
The utility model discloses a halogen-free low-smoke flame-retardant polyolefin sheath power cable, which comprises a cable core, wherein the cable core consists of a plurality of fireproof wire cores, a filling layer and a central reinforcing rib, the central position of the cable core is provided with the central reinforcing rib, the central reinforcing rib is longitudinally arranged along with the fireproof wire cores in an extending mode, the periphery of the central reinforcing rib is annularly arrayed with the plurality of fireproof wire cores, the filling layer is arranged between the plurality of fireproof wire cores, the outer side of the cable core is wrapped with an outer insulating layer, the outer side of the outer insulating layer is provided with a shielding layer, the outer side of the shielding layer is provided with a composite flame-retardant layer, and the outer side of the shielding layer is provided with an outer sheath.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a halogen-free low-smoke flame-retardant polyolefin sheath power cable.
Background
A cable is an electrical energy or signal transmission device, generally consisting of several wires or groups of wires, defined as 1: the cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and in many scenes, the cable is required to have good flame retardant performance, but most of flame retardant cables on the market are mainly flame retardant and flame retardant by the outer insulating layer, generally flame retardant by a single rubber sheath, single in means and poor in effect, and therefore the halogen-free low-smoke flame retardant polyolefin sheath power cable is provided.
Disclosure of Invention
The utility model aims to provide a halogen-free low-smoke flame-retardant polyolefin sheath power cable, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: including cable core, its characterized in that: the cable core comprises a plurality of fire-resistant wire cores, a filling layer and a central reinforcing rib, wherein the central reinforcing rib is arranged at the central position of the cable core and longitudinally follows the fire-resistant wire core to extend, the central reinforcing rib is provided with a plurality of fire-resistant wire cores in an annular array, the plurality of fire-resistant wire cores are provided with the filling layer, the outer side of the cable core is wrapped with an outer insulating layer, the outer side of the outer insulating layer is provided with a shielding layer, the outer side of the shielding layer is provided with a composite flame-retardant layer, the outer side of the composite flame-retardant layer is provided with an armor layer, and the outer side of the armor layer is provided with an outer sheath.
As a further preferable mode of the technical scheme, the fireproof wire core is composed of a plurality of conductors, a wrapping belt and an insulating layer, wherein the wrapping belt is wrapped on the outer side of the conductors, the insulating layer is wrapped on the outer side of the wrapping belt, the conductors) are made of annealed soft copper in a stranding mode, the wrapping belt is a coating mica tape overlapping wrapping belt, and the insulating layer is made of crosslinked polyethylene materials in an extrusion mode.
As a further preferable mode of the technical scheme, the filling layer is filled with solid fireproof mud at the gaps between the plurality of fireproof wire cores and the central reinforcing rib to form a compact structure.
As a further preferred aspect of the present utility model, the center reinforcing rib is provided as a silica gel core.
As a further preferable mode of the technical scheme, the shielding layer is woven by double-layer copper wires.
As a further preferred aspect of the present technical solution, the composite flame retardant layer includes a flame retardant layer, and a heat insulation wear resistant layer; the fire-retardant layer outside is provided with the flame retardant coating, the flame retardant coating outside is provided with thermal insulation wearing layer, the flame retardant coating is the fire-retardant polyolefin material of no halogen low smoke, and flame retardant coating thickness is 3mm, the flame retardant coating adds the fire retardant that prevents fires for emulsion aqueous material, thermal insulation wearing layer is made by polymeric ceramic composite.
As a further preferable mode of the technical scheme, the armor layer is a chain armor aluminum alloy belt.
As a further preferred aspect of the present technical solution, the outer sheath is a halogen-free low-smoke flame retardant polyolefin sheath.
The utility model provides a halogen-free low-smoke flame-retardant polyolefin sheath power cable, which has the following beneficial effects:
(1) The utility model adopts the halogen-free low-smoke flame-retardant polyolefin sheath, can provide excellent fireproof performance, the inner composite flame-retardant layer comprises a flame-retardant layer, a fireproof layer and a heat insulation wear-resistant layer, the flame-retardant layer is made of halogen-free low-smoke flame-retardant polyolefin, the fireproof layer is made of emulsion water-based materials, the heat insulation wear-resistant layer is made of polymeric ceramic composite materials, the cable structure is improved, and the fireproof and heat insulation performance of the cable are enhanced by adopting the multi-protection flame-retardant structure.
(2) According to the cable, the mica tape and the crosslinked polyethylene are correspondingly wrapped outside the conductor, so that the fireproof insulation effect of the cable is improved, meanwhile, the normal operation of the conductor can be ensured by means of the crosslinked polyethylene shielding layer, the external interference is avoided, and meanwhile, the insulation reinforcing layer is correspondingly added outside the cable core, so that the integral insulation performance of the cable can be reinforced, and the safety and stability of the normal operation of the cable are ensured.
(3) According to the utility model, the solid fireproof mud is adopted to squeeze the filling layer between the fireproof wire cores to form a compact structure, so that the inner fireproof wire cores are protected, and the phenomenon of thermal breakdown caused by fire is avoided under the condition of fire.
(4) The central reinforcing rib is arranged in the middle of the cable core, is a silica gel core, increases the firmness of the cable body, resists dragging, and has good fire resistance and high temperature resistance.
Drawings
FIG. 1 is an overall cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional view of a refractory core of the present utility model;
FIG. 3 is a schematic view of a composite flame retardant layer of the present utility model.
In the figure: 1. a refractory core; 2. a central reinforcing rib; 3. a filling layer; 4. a cable core; 5. an outer insulating layer; 6. a shielding layer; 7. a composite flame retardant layer; 8. an armor layer; 9. an outer sheath; 71. a flame retardant layer; 72. a fire-blocking layer; 73. a thermal insulation wear-resistant layer; 11. a conductor; 12. a belting; 13. an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
The utility model provides the technical scheme that: as shown in fig. 1, the cable core 4 is included in the embodiment, the cable core 4 is composed of a plurality of fire-resistant wire cores 1, a filling layer 3 and a central reinforcing rib 2, a central reinforcing rib 2 is arranged at the central position of the cable core 4, the central reinforcing rib 2 is longitudinally arranged along with the fire-resistant wire cores 1 in an extending mode, a plurality of fire-resistant wire cores 1 are arranged around the central reinforcing rib 2 in an annular array mode, the filling layer 3 is arranged between the fire-resistant wire cores 1, an outer insulating layer 5 is wrapped outside the cable core 4, a shielding layer 6 is arranged outside the outer insulating layer 5, a composite flame-retardant layer 7 is arranged outside the shielding layer 6, an armor layer 8 is arranged outside the composite flame-retardant layer 7, an outer jacket 9 is arranged outside the armor layer 8, the filling layer 3 is extruded between the fire-resistant wire cores 1 through solid fire-resistant mud, a compact structure is formed, the central reinforcing rib 2 is arranged as a silica gel core, firmness of a cable body is improved, the towing resistance is good, the shielding layer 6 is a double-layer copper wire braided, the armor layer 8 is an interlocking aluminum alloy belt, and the outer jacket 9 is a halogen-free low-smoke flame-resistant polyolefin jacket.
As shown in fig. 2, the refractory core 1 is composed of a plurality of conductors 11, a wrapping band 12 and an insulating layer 13, the wrapping band 12 is wrapped outside the conductors 11, the insulating layer 13 is wrapped outside the wrapping band 12, the conductors 11 are made of annealed soft copper in a stranding mode, the wrapping band 12 is a coated mica tape overlapping wrapping bag, the insulating layer 13 is made of a crosslinked polyethylene material in an extrusion mode, the coated mica tape and the crosslinked polyethylene are correspondingly wrapped outside the conductors, the fireproof insulating effect of the cable is improved, and meanwhile normal operation of the conductors can be guaranteed by means of the crosslinked polyethylene shielding layer, and external interference is avoided.
As shown in fig. 3, the composite flame retardant layer 7 includes a flame retardant layer 71, a flame retardant layer 72, and a heat insulating and wear resistant layer 73. The fire-retardant layer 71 outside is provided with flame retardant coating 72, and the flame retardant coating 72 outside is provided with thermal insulation wearing layer 73, and flame retardant coating 71 is the low smoke and zero halogen flame retardant polyolefin material, and flame retardant coating 71 thickness is 3mm, and flame retardant coating 72 adds the fire-retardant fire retardant for emulsion waterborne material, and thermal insulation wearing layer 73 is made by polymeric ceramic composite material, has improved from cable structure, adopts multiple protection fire-resistant flame retardant structure, has strengthened the fire prevention and the thermal insulation performance of cable.
The utility model provides a halogen-free low-smoke flame-retardant polyolefin sheath power cable, which has the following specific working principle: this cable installs central strengthening rib 2 in its center department, the vertical extension setting of following fire-resistant core 1 of central strengthening rib 2, can fix a position fire-resistant core 1 with the help of central strengthening rib 2, can carry out certain absorption to the extrusion force between the fire-resistant core 1 simultaneously, central strengthening rib 2 sets up to the silica gel core, the fastness of cable body has been increased, it drags to bear or endure, and fire-resistant high temperature resistant performance is better, annular array all around of central strengthening rib 2 has many fire-resistant core 1, be provided with filling layer 3 between many fire-resistant core 1, filling layer 2 adopts solid fire-proof mud crowded package between fire-resistant core 1, form closely knit structure, the phenomenon that the occurrence is influenced by the conflagration and take place thermal breakdown has been avoided in the cable core 4 outside to wind the package to have outer insulating layer 5, the outer insulating layer 5 outside is provided with shielding layer 6, shielding layer 6 is double-deck copper wire to weave and forms, the shielding layer 6 outside is provided with compound flame retardant layer 7, compound flame retardant layer 7 includes flame retardant layer 71, flame retardant layer 72 and heat insulating wear-resisting layer 73. The fire-retardant layer 71 outside is provided with flame retardant coating 72, the flame retardant coating 72 outside is provided with thermal insulation wearing layer 73, flame retardant coating 71 is halogen-free low smoke flame retardant polyolefin material, and flame retardant coating 71 thickness is 3mm, flame retardant coating 72 adds fire retardant for emulsion waterborne material, thermal insulation wearing layer 73 is made by polymeric ceramic composite material, has improved from cable structure, adopts multiple protection fire-retardant structure, has strengthened the fire prevention and the thermal insulation performance of cable, and the composite flame retardant coating 7 outside is provided with armor 8, and armor 8 outside is provided with oversheath 9, and the fire prevention and the thermal insulation performance of cable have been strengthened to the utility model.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A halogen-free low-smoke flame-retardant polyolefin sheath power cable, a cable core (4), characterized in that: the cable core (4) consists of a plurality of fireproof wire cores (1), a filling layer (3) and a central reinforcing rib (2), wherein the central reinforcing rib (2) is arranged at the central position of the cable core (4), the central reinforcing rib (2) is longitudinally arranged along with the fireproof wire cores (1) in an extending mode, the plurality of fireproof wire cores (1) are annularly arranged around the central reinforcing rib (2), and the filling layer (3) is arranged between the plurality of fireproof wire cores (1); the cable core (4) outside is around package has outer insulating layer (5), outer insulating layer (5) outside is provided with shielding layer (6), shielding layer (6) outside is provided with compound fire-retardant layer (7), compound fire-retardant layer (7) outside is provided with armor (8), armor (8) outside is provided with oversheath (9).
2. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the fire-resistant wire core (1) comprises a plurality of conductors (11), a wrapping belt (12) and an insulating layer (13), wherein the wrapping belt (12) is wrapped on the outer side of the conductors (11), the insulating layer (13) is wrapped on the outer side of the wrapping belt (12), the conductors (11) are made of annealed soft copper in a stranding mode, the wrapping belt (12) is formed by overlapping and wrapping a coating mica tape, and the insulating layer (13) is made of crosslinked polyethylene materials in an extrusion mode.
3. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the filling layer (3) is filled in gaps between the plurality of fireproof wire cores (1) and the central reinforcing rib (2) by adopting solid fireproof mud to form a compact structure.
4. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the central reinforcing rib (2) is arranged as a silica gel core.
5. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the shielding layer (6) is woven by double-layer copper wires.
6. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the composite flame-retardant layer (7) comprises a flame-retardant layer (71), a flame-retardant layer (72) and a heat-insulating wear-resistant layer (73); the flame retardant coating is characterized in that a flame retardant layer (72) is arranged on the outer side of the flame retardant layer (71), a heat insulation wear-resistant layer (73) is arranged on the outer side of the flame retardant layer (72), the flame retardant layer (71) is made of halogen-free low-smoke flame retardant polyolefin, the thickness of the flame retardant layer (71) is 3mm, and the heat insulation wear-resistant layer (73) is made of a polymeric ceramic composite material.
7. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the armor layer (8) is a chain armor aluminum alloy belt.
8. A halogen-free low smoke flame retardant polyolefin jacketed power cable as set forth in claim 1, wherein: the outer sheath (9) is a halogen-free low-smoke flame-retardant polyolefin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320684865.9U CN220252897U (en) | 2023-03-31 | 2023-03-31 | Halogen-free low-smoke flame-retardant polyolefin sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320684865.9U CN220252897U (en) | 2023-03-31 | 2023-03-31 | Halogen-free low-smoke flame-retardant polyolefin sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252897U true CN220252897U (en) | 2023-12-26 |
Family
ID=89263729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320684865.9U Active CN220252897U (en) | 2023-03-31 | 2023-03-31 | Halogen-free low-smoke flame-retardant polyolefin sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220252897U (en) |
-
2023
- 2023-03-31 CN CN202320684865.9U patent/CN220252897U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201877143U (en) | Fire-resistant cable | |
| CN209822310U (en) | Ceramic silicon rubber insulation temperature-resistant cable | |
| CN208622457U (en) | A kind of subway fire prevention signal cable | |
| CN220252897U (en) | Halogen-free low-smoke flame-retardant polyolefin sheath power cable | |
| CN102122540A (en) | Highly-insulated flame-resistant cable | |
| CN211181696U (en) | Low-smoke halogen-free flame-retardant water-blocking cable | |
| CN205810400U (en) | LSOH anti-flaming fire-resistant ground shield photoelectric compound cable | |
| CN204102616U (en) | A kind of novel flame-retardant fireproof cable | |
| CN106653173A (en) | Novel middle-voltage optical fiber composite cable laid behind optical unit | |
| CN202183258U (en) | Cross-linked polyethylene insulation steel-tape armoring low-smoke zero-halogen fire-resistant control cable | |
| CN212907194U (en) | Flame-retardant B1-grade fire-resistant armored control cable for rail transit | |
| CN215868762U (en) | Composite cable | |
| CN214956089U (en) | Power cable resistant to special combustion conditions | |
| CN216054005U (en) | Halogen-free low-smoke flame-retardant B1-grade fireproof waterproof variable frequency cable | |
| CN212624925U (en) | High structural strength flame retarded cable | |
| CN214796799U (en) | Improved flexible mineral insulated cable | |
| CN216671227U (en) | Steel wire braided armored low-smoke halogen-free fire-resistant flame-retardant B1-grade intrinsically safe explosion-proof cable | |
| CN216697952U (en) | High-shielding track traffic axle counting cable | |
| CN212907199U (en) | Composite waterproof power cable | |
| CN217280201U (en) | Medium voltage cable | |
| CN218568491U (en) | Mineral insulation crosslinked polyolefin sheath fireproof cable for nuclear industry | |
| CN209591613U (en) | A kind of wiring mineral insulating flexible fireproof cable | |
| CN210865717U (en) | Environment-friendly fireproof variable-frequency power cable | |
| CN219105815U (en) | Low-smoke flame-retardant fire-resistant power cable | |
| CN214152507U (en) | Tensile silver-plated alloy wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |