CN210516301U - Novel double-layer flame-retardant cable - Google Patents
Novel double-layer flame-retardant cable Download PDFInfo
- Publication number
- CN210516301U CN210516301U CN201921881809.4U CN201921881809U CN210516301U CN 210516301 U CN210516301 U CN 210516301U CN 201921881809 U CN201921881809 U CN 201921881809U CN 210516301 U CN210516301 U CN 210516301U
- Authority
- CN
- China
- Prior art keywords
- flame
- layer
- retardant
- cable
- fire
- 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.)
- Expired - Fee Related
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 74
- 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 69
- 239000010445 mica Substances 0.000 claims abstract description 41
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 239000010949 copper Substances 0.000 claims abstract description 29
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 73
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 14
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical compound C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 claims description 7
- 229920002050 silicone resin Polymers 0.000 claims description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 239000011490 mineral wool Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 239000002355 dual-layer Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 9
- 230000036541 health Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000007096 poisonous effect Effects 0.000 abstract description 2
- 238000000197 pyrolysis Methods 0.000 abstract description 2
- 229910052736 halogen Inorganic materials 0.000 description 7
- 150000002367 halogens Chemical class 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a novel double-layer flame-retardant cable, which comprises a first flame-retardant layer, a second flame-retardant layer, a copper conductor wrapped with a fire-resistant mica tape, an insulating layer and an oxygen-isolating layer; the insulating layer is arranged on the copper conductor wrapped with the fire-resistant mica tape and is arranged inside the first flame-retardant layer; the first flame retardant layer is arranged inside the second flame retardant layer; the oxygen isolation layer is arranged between the first flame-retardant layer and the second flame-retardant layer. The utility model discloses a provide, the health threat problem that a large amount of smog and poisonous and harmful gas that has solved wire, cable material's pyrolysis and burning production result in improves and has improved the cable and at fire-retardant fire-resistant aspect performance, has satisfied people's requirement to safe and environment-friendly wire and cable.
Description
Technical Field
The utility model relates to a safety protection technique especially relates to a novel double-deck flame retarded cable.
Background
With the development of industrial technology, the continuous complication of urban and industrial building structures and scales and the increase of fire safety awareness, people have higher and higher requirements on the safety and environmental protection of wire and cable products. Although the traditional common flame-retardant fire-resistant wire and cable has flame-retardant and fire-resistant functions, the material contains a large amount of halogen polymer and halogen flame retardant, and can release toxic and harmful gas and smoke dust in a combustion state, so that the requirements of safety and environmental protection cannot be met.
When a fire accident happens, a large amount of smoke and toxic and harmful gas can be generated due to thermal decomposition and combustion of traditional wire and cable materials, and the smoke and the toxic and harmful gas have light reducing property and irritation, so that people can not find a safe exit to escape, and suffocation is caused to cause casualties. The main reason for this is that the insulation layer of the conventional flame-retardant and fire-resistant cable is made of a flame-retardant material which is a mixture of a halogen-containing polymer and a halogen-containing flame retardant. In addition, the material also contains a certain amount of bromide and lead, which are harmful to human bodies and the environment, can slowly corrode fire-fighting facilities, and bring great influence to human health and fire rescue.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a novel double-deck flame retarded cable possesses low smoke and zero halogen flame retardant fire resisting cable's performance, has solved the health threat problem that a large amount of smog and the poisonous and harmful gas that wire, cable material's pyrolysis and burning produced result in, has satisfied people to the requirement of safe and environment-friendly wire and cable, improves and has improved the cable in fire-retardant fire-resistant aspect performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel double-layer flame-retardant cable comprises a first flame-retardant layer, a second flame-retardant layer, a copper conductor wrapped with a fire-resistant mica tape, an insulating layer and an oxygen isolation layer;
the insulating layer is arranged on the copper conductor wrapped with the fire-resistant mica tape and is arranged inside the first flame-retardant layer;
the first flame retardant layer is arranged inside the second flame retardant layer;
the oxygen isolation layer is arranged between the first flame-retardant layer and the second flame-retardant layer.
Preferably, the first flame retardant layer comprises: flame-retardant wrapping tapes and rock wool;
and a flame-retardant wrapping tape is filled between the first flame-retardant layer and the copper conductor wrapped by the insulating layer and wrapped by the fireproof mica tape and is filled and compacted through rock wool.
Preferably, the second flame retardant layer comprises: polyolefin materials and halogen-free flame retardants.
Preferably, the copper conductor adopts a circular twisted copper conductor structure.
Preferably, the exterior coating with fire resistant mica comprises: large-scale mica paper, methyl phenyl silicone resin and alkali-free glass cloth;
the large-scale mica paper is bonded with the alkali-free glass cloth through the methyl phenyl silicone resin.
Preferably, the insulating layer comprises thermosetting crosslinked polyethylene;
the thermosetting crosslinked polyethylene is used for tightly extruding and wrapping the copper conductor wrapped with the fire-resistant mica tape in a molten state, and cannot damage the copper conductor.
Preferably, the fire-resistant mica tape is wrapped outside the copper conductor, so that when the cable is burnt by flame on the outside, the cable can be ensured to keep normal power supply operation characteristics within a preset time.
Preferably, the oxygen barrier layer comprises a hydrated metal oxide;
the hydrated metal oxide is heated to contact with oxygen to generate a decomposition reaction to generate crystal water, and then water vapor is formed.
Compared with the closest prior art, the utility model provides a technical scheme has following beneficial effect:
the novel double-layer flame-retardant cable provided by the utility model can meet the requirements of low smoke, zero halogen and flame retardance, and solves the health threat problem caused by a large amount of smog and toxic and harmful gases generated by the thermal decomposition and combustion of electric wires and cable materials, thereby meeting the requirements of people on safe and environment-friendly electric wires and cables; compare general cable, durable more wear-resisting and resistance to compression ageing resistance can be strong, has effectively prolonged the life of cable conductor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic view of the overall architecture of the cross-space cascade fault detection system provided by the present invention;
in the figure: 1. the fireproof mica tape comprises a copper conductor, 2 a fireproof mica tape, 3 an insulating layer, 4 a flame-retardant wrapping tape, 5 an oxygen isolation layer, 6 and a flame-retardant outer protective layer.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
In order to specifically understand the technical solutions provided by the present invention, the technical solutions of the present invention will be described and illustrated in detail in the following embodiments. It is obvious that the embodiments presented are not limited to the particular details that are familiar to a person skilled in the art. The preferred embodiments of the present invention are described in detail below, and other embodiments are possible in addition to these descriptions.
The utility model discloses in the design, its fire-retardant layer material mainly adopts the polyolefin, and insulating layer material should adopt the XLPE type crosslinked polyethylene who lists in GB/T9330.
The overall structure is shown in fig. 1, and a novel double-layer flame-retardant cable is provided, as shown in fig. 1, the double-layer flame-retardant cable comprises a first flame-retardant layer, a second flame-retardant layer, a copper conductor wrapped with a fire-resistant mica tape, an insulating layer and an oxygen isolation layer; the insulating layer is arranged on the copper conductor wrapped with the fire-resistant mica tape and is arranged inside the first flame-retardant layer; the first flame retardant layer is arranged inside the second flame retardant layer; the oxygen isolation layer is arranged between the first flame-retardant layer and the second flame-retardant layer.
Wherein the first flame retardant layer comprises: flame-retardant wrapping tapes and rock wool; and a flame-retardant wrapping tape is filled between the first flame-retardant layer and the copper conductor wrapped by the insulating layer and wrapped by the fireproof mica tape and is filled and compacted through rock wool.
Lapping and wrapping a mica tape on the round copper conductor to play a role of a fire-resistant layer structure, and extruding a cross-linked polyethylene insulating layer on the fire-resistant layer of the mica tape. The fire-resistant mica tape has fire resistance, and particularly, the cable can still keep normal power supply operation characteristics when the fire-resistant mica tape is burnt in flame under specified test conditions and within specified test time. Mica tapes and mineral insulating materials are mainly adopted, while the manufacturing process of mineral insulating fire-resistant cables is complex, and most fire-resistant cables mainly adopt mica tape structures.
The mica tape is made by bonding large-scale mica paper between two layers of alkali-free glass cloth with methyl phenyl silicone resin and baking, and has fire resistance. The mica tape mainly has the functions of fire resistance and heat insulation and does not have the combined function, so the mica tape is matched with an insulating layer and an outer protective layer which have the flame retardant function for use. The mica tape is easy to fall off during the bending process, and the electrical performance of the mica tape can be changed under the high-temperature environment, so that the mica tape structure is matched with the round copper conductor and is mainly used in low-voltage fire-resistant cables not exceeding 1000 v.
Preferably, the second flame retardant layer comprises: polyolefin materials and halogen-free flame retardants.
The copper conductor adopts a circular twisted copper conductor structure.
The outsourcing has fire-resistant mica to include: large-scale mica paper, methyl phenyl silicone resin and alkali-free glass cloth;
the large-scale mica paper is bonded with the alkali-free glass cloth through the methyl phenyl silicone resin.
The insulating layer comprises thermosetting crosslinked polyethylene; for example, crosslinked polyethylene of the XLPE type listed in GB/T9330, i.e., thermosetting crosslinked polyethylene, is used. The cross-linked polyethylene insulating material is tightly extruded on the conductor in a molten state, and does not damage the conductor and the insulating layer.
The thermosetting crosslinked polyethylene is used for being tightly extruded and wrapped on the copper conductor wrapped with the fire-resistant mica tape in a molten state, and cannot damage the copper conductor.
Further, the fire-resistant mica tape is wrapped outside the copper conductor and used for ensuring that the cable keeps normal power supply operation characteristics within a preset time when flame burns outside the cable.
The oxygen isolation layer comprises hydrated metal oxide and is used for being heated to be in contact with oxygen to generate decomposition reaction to generate crystal water so as to form water vapor. A large amount of hydrated metal oxide is added into the cross-linked polyethylene material to extrude and wrap the outer protective layer structure. The adopted materials do not contain halogen elements, and even in a combustion state, toxic and harmful gases and dense smoke are not generated, only a small amount of smoke is generated, and the content of acid gas is below 5%. The principle that the hydrated metal oxide can play a flame-retardant role is that decomposition reaction can occur after being heated, a large amount of crystal water is generated, the crystal water is changed into water vapor, heat is absorbed, and the concentration of combustible gas is diluted, so that the effect of controlling temperature rise and preventing combustion is achieved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and those skilled in the art should understand with reference to the above embodiments: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is not to be limited except as by the claims.
Claims (8)
1. A novel double-layer flame-retardant cable is characterized by comprising a first flame-retardant layer, a second flame-retardant layer, a copper conductor wrapped with a fire-resistant mica tape, an insulating layer and an oxygen isolation layer;
the insulating layer is arranged on the copper conductor wrapped with the fire-resistant mica tape and is arranged inside the first flame-retardant layer;
the first flame retardant layer is arranged inside the second flame retardant layer;
the oxygen isolation layer is arranged between the first flame-retardant layer and the second flame-retardant layer.
2. The dual layer flame retardant cable of claim 1, wherein the first flame retardant layer comprises: flame-retardant wrapping tapes and rock wool;
and a flame-retardant wrapping tape is filled between the first flame-retardant layer and the copper conductor wrapped by the insulating layer and wrapped by the fireproof mica tape and is filled and compacted through rock wool.
3. The dual layer flame retardant cable of claim 1, wherein the second flame retardant layer comprises: polyolefin materials and halogen-free flame retardants.
4. The double-layer flame-retardant cable according to claim 1, wherein the copper conductor is in a round twisted copper conductor structure.
5. The two-layer flame-retardant cable of claim 2, wherein the coated fire-resistant mica comprises: large-scale mica paper, methyl phenyl silicone resin and alkali-free glass cloth;
the large-scale mica paper is bonded with the alkali-free glass cloth through the methyl phenyl silicone resin.
6. The bi-layer flame retardant cable of claim 2, wherein the insulating layer comprises a thermoset cross-linked polyethylene;
the thermosetting crosslinked polyethylene is used for tightly extruding and wrapping the copper conductor wrapped with the fire-resistant mica tape in a molten state, and cannot damage the copper conductor.
7. The double-layer flame-retardant cable according to claim 1, wherein the fire-resistant mica tape is wrapped outside the copper conductor for ensuring that the cable maintains normal power supply operation characteristics for a preset time when the cable is externally flamed.
8. The bi-layer flame retardant cable of claim 1 wherein the oxygen barrier layer comprises a hydrated metal oxide;
the hydrated metal oxide is heated to contact with oxygen to generate a decomposition reaction to generate crystal water, and then water vapor is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921881809.4U CN210516301U (en) | 2019-11-04 | 2019-11-04 | Novel double-layer flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921881809.4U CN210516301U (en) | 2019-11-04 | 2019-11-04 | Novel double-layer flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516301U true CN210516301U (en) | 2020-05-12 |
Family
ID=70574072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921881809.4U Expired - Fee Related CN210516301U (en) | 2019-11-04 | 2019-11-04 | Novel double-layer flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516301U (en) |
-
2019
- 2019-11-04 CN CN201921881809.4U patent/CN210516301U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206639628U (en) | A kind of mineral insulation aluminium sheath flexible optical fibre composite fireproof cable | |
| CN207602250U (en) | A kind of metallic spacer flexible fire-proof cable | |
| CN211907047U (en) | Energy-saving environment-friendly high-flame-retardant high-fire-resistant cable | |
| CN201910285U (en) | Branch cable used in high-security place | |
| CN203026246U (en) | Halogen-free low-smoke flame-retardant fire-proof power cable | |
| CN202796113U (en) | Fire-insulating type low-smoke and halogen-free fire-resisting cable | |
| CN201707950U (en) | Environment-friendly low-smoke halogen-free fire-retardant refractory control cable | |
| CN203706730U (en) | High-flame-retardant low smoke halogen-free medium-voltage fire resisting cable | |
| CN208335828U (en) | Fire-resisting cable is pressed in one kind | |
| CN209515293U (en) | A kind of wear-resisting weather-proof water proof fire retardant power cable | |
| CN210516301U (en) | Novel double-layer flame-retardant cable | |
| CN206774295U (en) | A kind of A classes flame-retardant fire-resistant power cable | |
| CN205943517U (en) | Fire -resistant power cable of improved generation middling pressure | |
| CN213424621U (en) | Aluminum alloy core isolated form fire resisting cable | |
| CN211062486U (en) | Flexible mineral insulation fireproof cable | |
| CN210443320U (en) | Flame-retardant heat-resistant cable | |
| CN207074570U (en) | Low-smoke zero-halogen fire-resistant cable | |
| CN203377011U (en) | Ant and rat-proof flexible fireproof cable for fire elevator | |
| CN202796162U (en) | Fire-retarding type halogen-free low-smoke fire-resistant cable | |
| CN208400602U (en) | Fire-resisting cable is pressed in a kind of high fire-retardance minerals refuge floor | |
| CN207611623U (en) | A kind of mineral insulation metal shield monitoring type coal mine fireproof cable | |
| CN206432060U (en) | Silicone insulation fire prevention cable | |
| CN205303039U (en) | Fire -resistant low tension cable of flexible insulation aluminium sheath | |
| CN110660506A (en) | Fireproof cable | |
| CN2739768Y (en) | High temperature fire-resistant environmental-protection control cable |
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: 20200512 |