CN211319787U - Fire-resistant cable - Google Patents
Fire-resistant cable Download PDFInfo
- Publication number
- CN211319787U CN211319787U CN202020293114.0U CN202020293114U CN211319787U CN 211319787 U CN211319787 U CN 211319787U CN 202020293114 U CN202020293114 U CN 202020293114U CN 211319787 U CN211319787 U CN 211319787U
- Authority
- CN
- China
- Prior art keywords
- layer
- fire
- cable
- cable core
- resistant
- 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
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 24
- 239000003063 flame retardant Substances 0.000 claims abstract description 15
- 229920000098 polyolefin Polymers 0.000 claims abstract description 9
- 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 claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 66
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 12
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- -1 armor Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model belongs to the technical field of the cable, especially, be a fire-resistant type cable, include the cable core and by interior and wrap up cable core band layer, inner sheath, waterproof layer, armor, magnesium oxide fire barrier layer, the fire-retardant layer of low smoke and zero halogen polyolefin and oversheath layer outside the cable core in proper order outward. The utility model discloses an interior sheath, the XLPE insulating layer, the setting on semiconduction shielding layer and copper shield band layer, can provide good high temperature resistance for the cable core, high insulation resistance and high electric strength, through the waterproof layer, the armor, magnesium oxide separates fire bed and the fire-retardant setting of low smoke and zero halogen polyolefin, can make the cable possess excellent waterproof performance, high mechanical properties and fire-resistant flame retardant property, can prevent that moisture from invading insulating inside and leading to the insulation failure, improve cable strength, guarantee cable safety and stability operation, guarantee the circuit simultaneously and continue steady operation certain time under the flame condition, the loss that causes the conflagration falls to minimumly.
Description
Technical Field
The utility model relates to the technical field of cables, specifically a fire-resistant type cable.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.
The cable on the market generally has the defect that fire-resistant insulating property is not good, fire-resistant property is unreliable, can not guarantee that the circuit continues steady operation for a certain time under the flame condition, and to the loss reduction that the conflagration caused limited, and mechanical strength is not high, and waterproof nature is not good, influences the life of cable.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a fire-resistant type cable has solved the not good, the insecure defect of fire-resistant insulating properties of cable ubiquitous on the existing market, can not guarantee that the circuit continues the steady operation for a certain time under the flame condition, and the loss that causes the conflagration reduces limitedly, and mechanical strength is not high, and waterproof nature is not good, influences the life's of cable problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-resistant cable, includes cable core and by interior and outer cable core band layer, inner sheath, waterproof layer, armor, magnesium oxide fire barrier, low smoke and zero halogen polyolefin fire-retardant layer and the oversheath of wrapping up in proper order outside the cable core, be equipped with fire-retardant filling layer between cable core and the cable core band layer, the cable core comprises conductor and by interior and outer inner sheath, XLPE insulating layer, semi-conductive shielding layer and the copper shield band layer of wrapping up in proper order outside the conductor
As an optimized technical scheme of the utility model, interior sheath adopts the mica tape.
As an optimized technical scheme of the utility model, the inner sheath adopts low density PE sheath.
As an optimized technical scheme of the utility model, the waterproof layer adopts the PE water proof membrane.
As an optimal technical scheme of the utility model, be equipped with the resistant high temperature layer of silicon rubber between waterproof layer and the armor.
As an optimized technical scheme of the utility model, the armor adopts the aluminum alloy area of interlocking formula arch structure design.
As an optimized technical scheme of the utility model, the oversheath adopts the PVC sheath.
(III) advantageous effects
Compared with the prior art, the utility model provides a fire-resistant type cable possesses following beneficial effect:
this fire-resistant type cable, through interior sheath, the XLPE insulating layer, the setting on semiconduction shielding layer and copper shield band layer, can provide good high temperature resistance ability for the cable core, high insulation resistance and high electric strength, through the waterproof layer, the armor, magnesium oxide separates fire layer and the fire-retardant setting of low smoke and zero halogen polyolefin, can make the cable possess excellent waterproof performance, high mechanical properties and fire-resistant flame retardant property, can prevent that moisture from invading insulating inside and leading to insulation failure, improve cable strength, guarantee cable safety and stability operation, guarantee the circuit simultaneously and continue steady operation certain time under the flame condition, the loss that causes the conflagration falls to minimumly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is the structural schematic diagram of the middle cable core of the present invention.
In the figure: 100. a cable core; 101. a conductor; 102. an inner protective layer; 103. an XLPE insulating layer; 104. a semiconductive shield layer; 105. a copper shield tape layer; 200. a cable core belting layer; 300. an inner sheath; 400. a waterproof layer; 500. an armor layer; 600. a magnesium oxide fire barrier layer; 700. a low smoke halogen-free polyolefin flame retardant layer; 800. an outer sheath; 900. and a flame-retardant filling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-2, the present invention provides the following technical solutions: a fire-resistant cable comprises a cable core 100, a cable core belting layer 200, an inner sheath 300, a waterproof layer 400, an armor layer 500, a magnesium oxide fire barrier layer 600, a low-smoke halogen-free polyolefin fire-retardant layer 700 and an outer sheath 800 which are sequentially wrapped outside the cable core 100 from inside to outside, a fire-retardant filling layer 900 is arranged between the cable core 100 and the cable core belting layer 200, and the cable core 100 consists of a conductor 101, an inner sheath 102, an XLPE insulating layer 103, a semi-conductive shielding layer 104 and a copper shielding belting layer 105 which are sequentially wrapped outside the conductor 101 from inside to outside.
In this embodiment, the cable core 100 is provided with three, and the flame-retardant filling layer 900 can be made of polyolefin filling strips, so that the cable has good flame-retardant performance.
Specifically, the inner sheath 102 is made of mica tape.
In the embodiment, the mica tape is a fire-resistant insulating material, has excellent high-temperature resistance and combustion resistance, and can be used as a main fire-resistant insulating layer of a cable.
Specifically, the inner sheath 300 employs a low density PE sheath.
In this embodiment, the PE sheath is used as the inner sheath 300, so that the cable has superior mechanical properties, chemical corrosion resistance, weather resistance and insulation properties.
Specifically, the waterproof layer 400 is a PE waterproof film.
In this embodiment, the PE waterproof film as the waterproof layer 400 can provide good waterproof performance for the cable, prevent that moisture from invading the insulating inside and leading to insulation failure, and guarantee the safe and stable operation of the cable.
Specifically, a silicone rubber high temperature resistant layer is disposed between the waterproof layer 400 and the armor layer 500.
In this embodiment, the high temperature resistant performance of cable can further be promoted in the setting on the resistant high temperature layer of silicon rubber, avoids the internal insulation thermal ageing insulating weak area to appear.
Specifically, armor 500 utilizes aluminum alloy strips designed with an interlocking arch configuration.
In this embodiment, armor 500 adopts the aluminum alloy area of interlocking formula arch structure design, can improve cable strength, and heat dispersion is good, and bending property is good, effectively protects the insulation core.
Specifically, the outer sheath 800 is a PVC sheath.
In the embodiment, the PVC sheath is used as the outer sheath 800, so that the cable has better corrosion resistance, mechanical property, weather resistance, wear resistance and vibration resistance, and can meet the requirement of the lowest operation temperature (-40 ℃) of the cable in a required place.
The utility model discloses a theory of operation and use flow: when the cable is used, the inner sheath layer 102, the XLPE insulating layer 103, the semi-conductive shielding layer 104 and the copper shielding belting layer 105 provide good high-temperature resistance, high insulation resistance, electric strength and high mechanical performance for a cable core, the PE inner sheath 300 enables the cable to have excellent mechanical performance, chemical corrosion resistance, weather resistance and insulation performance, the waterproof layer 400 enables the cable to provide good waterproof performance, moisture is prevented from invading into the insulation to cause insulation failure, the armor layer 500 can improve the strength and heat dissipation performance of the cable, the bending performance is good, the insulated cable core is effectively protected, the magnesium oxide fire insulation layer 600 and the low-smoke halogen-free polyolefin fire retardation layer 700 can improve the fire resistance, the fire resistance and the cracking resistance of the cable, and the PVC outer sheath 800 enables the cable to have good corrosion resistance, mechanical performance, weather resistance and wear resistance, The vibration resistance can meet the requirement of the lowest operation temperature (-40 ℃) of the cable in a required place.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A fire-resistant cable is characterized in that: the cable core comprises a cable core (100), a cable core belting layer (200), an inner sheath (300), a waterproof layer (400), an armor layer (500), a magnesium oxide fire barrier layer (600), a low-smoke halogen-free polyolefin flame retardant layer (700) and an outer sheath (800) which are sequentially wrapped outside the cable core (100) from inside to outside, wherein a flame retardant filling layer (900) is arranged between the cable core (100) and the cable core belting layer (200), and the cable core (100) is composed of a conductor (101) and an inner sheath (102), an XLPE insulating layer (103), a semi-conductive shielding layer (104) and a copper shielding belting layer (105) which are sequentially wrapped outside the conductor (101) from inside to outside.
2. A fire-resistant cable according to claim 1, characterized in that: the inner protective layer (102) is made of mica tapes.
3. A fire-resistant cable according to claim 1, characterized in that: the inner sheath (300) is a low-density PE sheath.
4. A fire-resistant cable according to claim 1, characterized in that: the waterproof layer (400) is a PE waterproof film.
5. A fire-resistant cable according to claim 1, characterized in that: and a silicon rubber high-temperature resistant layer is arranged between the waterproof layer (400) and the armor layer (500).
6. A fire-resistant cable according to claim 1, characterized in that: the armor (500) is an aluminum alloy strip designed with an interlocking arch structure.
7. A fire-resistant cable according to claim 1, characterized in that: the outer sheath (800) is a PVC sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020293114.0U CN211319787U (en) | 2020-03-11 | 2020-03-11 | Fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020293114.0U CN211319787U (en) | 2020-03-11 | 2020-03-11 | Fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211319787U true CN211319787U (en) | 2020-08-21 |
Family
ID=72079553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020293114.0U Active CN211319787U (en) | 2020-03-11 | 2020-03-11 | Fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211319787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635116A (en) * | 2020-11-19 | 2021-04-09 | 马鞍山安慧智电子科技有限公司 | Irradiation crosslinking polyolefin insulation photovoltaic cable |
| CN114927279A (en) * | 2022-06-01 | 2022-08-19 | 湖南湘江电缆有限公司 | High-temperature-resistant waterproof environment-friendly cable |
| CN117253666A (en) * | 2023-10-19 | 2023-12-19 | 建业电缆集团有限公司 | Low-smoke halogen-free mica mineral reinforced fireproof cable |
-
2020
- 2020-03-11 CN CN202020293114.0U patent/CN211319787U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635116A (en) * | 2020-11-19 | 2021-04-09 | 马鞍山安慧智电子科技有限公司 | Irradiation crosslinking polyolefin insulation photovoltaic cable |
| CN114927279A (en) * | 2022-06-01 | 2022-08-19 | 湖南湘江电缆有限公司 | High-temperature-resistant waterproof environment-friendly cable |
| CN117253666A (en) * | 2023-10-19 | 2023-12-19 | 建业电缆集团有限公司 | Low-smoke halogen-free mica mineral reinforced fireproof cable |
| CN117253666B (en) * | 2023-10-19 | 2024-03-01 | 建业电缆集团有限公司 | Low-smoke halogen-free mica mineral reinforced fireproof cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211319787U (en) | Fire-resistant cable | |
| CN104464911A (en) | Low smoke halogen-free flame-retardant fireproof medium-voltage flexible cable | |
| CN216119656U (en) | Moisture-proof and fire-resistant cable for outdoor construction | |
| CN220106062U (en) | Fire-resistant marine cable | |
| CN219143854U (en) | Environment-friendly medium-voltage flame-retardant fire-resistant cable | |
| CN214671950U (en) | High flame-retardant insulated wire and cable | |
| CN213958659U (en) | Multifunctional reinforced overhead insulated cable | |
| CN212587253U (en) | Fireproof low-voltage cable structure | |
| CN213339752U (en) | High-temperature-resistant insulated cable | |
| CN211125116U (en) | Silicon rubber insulation ultra-high temperature fire-resistant cable | |
| CN211181696U (en) | Low-smoke halogen-free flame-retardant water-blocking cable | |
| CN211788315U (en) | Isolated form mineral insulation fireproof cable | |
| CN210640007U (en) | Fireproof cable | |
| CN216772884U (en) | Special anti-freezing overhead insulated cable for wind power generation | |
| CN217386741U (en) | Watertight composite insulation flexible fireproof cable | |
| CN214253936U (en) | Cable for explosion-proof electrical equipment | |
| CN214152537U (en) | Cable with good waterproof effect for cabin | |
| CN221668564U (en) | High-efficiency fireproof flame-retardant cable for electric automation engineering | |
| CN222300366U (en) | An electromagnetic interference resistant power cable with insulating filler | |
| CN222394608U (en) | cable | |
| CN219534124U (en) | High temperature resistant cable subassembly | |
| CN213716552U (en) | Fire-resistant rubber cable | |
| CN217157788U (en) | A flexible flame-retardant and fire-resistant control cable | |
| CN210516296U (en) | Fire-resistant and flame-retardant ceramicized control cable | |
| CN221613577U (en) | Environment-friendly twisted pair for fire control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |