CN209374144U - Isolated fire-retardant cable electric wire - Google Patents
Isolated fire-retardant cable electric wire Download PDFInfo
- Publication number
- CN209374144U CN209374144U CN201920464007.7U CN201920464007U CN209374144U CN 209374144 U CN209374144 U CN 209374144U CN 201920464007 U CN201920464007 U CN 201920464007U CN 209374144 U CN209374144 U CN 209374144U
- Authority
- CN
- China
- Prior art keywords
- layer
- flame
- retardant
- water blocking
- retardant layer
- 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 79
- 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 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 230000000903 blocking effect Effects 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 5
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 4
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 4
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 4
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 4
- 229920006122 polyamide resin Polymers 0.000 claims abstract description 4
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 3
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims 1
- 239000004702 low-density polyethylene Substances 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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 discloses a kind of isolated fire-retardant cable electric wires, it is related to power cable technical field, the central part of the cable and wire is equipped with copper core conductor, the outside of the copper core conductor is successively coated with PTFE insulating layer, first flame-retardant layer, first water blocking layer, second flame-retardant layer, second water blocking layer and third flame-retardant layer, first flame-retardant layer, second flame-retardant layer and the third flame-retardant layer are Corvic, polyvinyl resin, acrylic resin, EVA resin or polyamide resin layer, first water blocking layer and second water blocking layer are high-density polyethylene resin of the saturated water absorption less than 0.5%, ldpe resin or linear low density polyethylene resin layer, the outer diameter of the cable and wire is 2.2mm to 6mm.It takes into account the anti-flammability, insulating properties and electric property that ensure that cable and wire by outer diameter refinement, the structure optimization of lightweight.
Description
Technical field
The utility model relates to power cable technical field, in particular to a kind of isolated fire-retardant cable electric wire.
Background technique
Cable can be divided into power cable, communication cable and control cable etc. by its purposes.Cable is usually by several or several
The cable of similar rope made of wire stranding, mutually insulated between every group of conducting wire are organized, and is often twisted into around a center, it is whole
A outside is surrounded by the coating of high-insulation, and multi rack is located at aerial or is mounted in underground, the bottom, is used for telecommunication or power Transmission.Closely
Several years, insulated cable electric wire increasingly developed to lightweight quantized directions, and the trend for seeking the refinement of cable and wire outer diameter is also more come
Obviously, however, how to take into account ensures the fire-retardant of cable and wire in the case where reducing cable and wire flame-retardant layer and thickness of insulating layer
Property, insulating properties and electric property are a unavoidable important topics.
Utility model content
In view of the deficiencies of the prior art, the technical problem to be solved is that provide a kind of isolated fire-retardant cable for the utility model
Electric wire takes into account the anti-flammability that ensure that cable and wire, insulating properties and electrical by outer diameter refinement, the structure optimization of lightweight
Performance.
The utility model is to be addressed above-mentioned technical problem by the following technical programs.
The central part of isolated fire-retardant cable electric wire, the cable and wire is equipped with copper core conductor, the outside of the copper core conductor
It is successively coated with PTFE insulating layer, the first flame-retardant layer, the first water blocking layer, the second flame-retardant layer, the second water blocking layer and third flame-retardant layer,
First flame-retardant layer, second flame-retardant layer and the third flame-retardant layer are Corvic, polyvinyl resin, poly- third
Olefine resin, EVA resin or polyamide resin layer, first water blocking layer and second water blocking layer are that saturated water absorption is less than
0.5% high-density polyethylene resin, ldpe resin or linear low density polyethylene resin layer, the cable and wire
Outer diameter be 2.2mm to 6mm.
Preferably, the thickness of first water blocking layer and second water blocking layer is 25 μm to 75 μm.
Preferably, first flame-retardant layer and the second flame-retardant layer thickness are 50 μm to 150 μm.
Preferably, the third flame-retardant layer with a thickness of 50 μm to 120 μm.
Preferably, first flame-retardant layer, second flame-retardant layer and the third flame-retardant layer in total with a thickness of 200
μm to 400 μm.
Preferably, first flame-retardant layer, the thickness in total of second flame-retardant layer and the third flame-retardant layer and institute
The ratio of thickness in total for stating the first water blocking layer and second water blocking layer is 2:1 to 8:1.
Preferably, the PTFE insulating layer is that three layers of PTFE semi-directional band are sealed through seamless wrapped and sintering.
Preferably, the degree of orientation of the PTFE semi-directional band is 1.2 to 1.4, with a thickness of 0.05 to 0.1mm.
Preferably, the density of first water blocking layer and second water blocking layer is 0.85g/cm3To 1.2g/cm3。
The utility model has the beneficial effects that compared with common flame retardant property cable and wire, the outer diameter of the cable and wire
The thinning processing of 2.2mm to 6mm is obtained, quality is lighter.It is true by the first flame-retardant layer, the second flame-retardant layer and third flame-retardant layer
While environment friendly flame-retardant characteristic, the saturated water absorption of the first water blocking layer and the second water blocking layer is less than 0.5%, and block-water performance is high, effectively
Inhibition aqueous vapor be impregnated with externally to internal flame-retardant layer, prevent flame retardant property from deteriorating, to guarantee internal excellent fire-retardant spy
Property, insulating properties and electric property.
Detailed description of the invention
The following drawings is intended to not constitute the limitation to scope of protection of the utility model convenient for description preferred embodiment.
Fig. 1 is the section structure diagram of the utility model embodiment.
In figure: 1- copper core conductor, 2-PTFE insulating layer, the first flame-retardant layer of 3-, the first water blocking layer of 4-, the second flame-retardant layer of 5-,
The second water blocking layer of 6-, 7- third flame-retardant layer.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.
As shown in Figure 1, the isolated fire-retardant cable electric wire of the utility model embodiment, the central part of the cable and wire are equipped with
Copper core conductor 1, copper core conductor 1 can be naked copper monofilament and be twisted, and the outer diameter of copper core conductor 1 is greater than 1mm and is less than 6mm.
The outside of the copper core conductor 1 is successively coated with PTFE insulating layer 2, the first flame-retardant layer 3, the first water blocking layer 4, second
Flame-retardant layer 5, the second water blocking layer 6 and third flame-retardant layer 7, for example, the PTFE insulating layer 2 is three layers of PTFE semi-directional band through seamless
Wrapped and sintering seals, and further, the degree of orientation of the PTFE semi-directional band is 1.2 to 1.4, with a thickness of 0.05 to
0.1mm。
First flame-retardant layer 3, second flame-retardant layer 5 and the third flame-retardant layer 7 are Corvic, poly- second
Olefine resin, acrylic resin, EVA resin or polyamide resin layer, first water blocking layer 4 and second water blocking layer 6 are
High-density polyethylene resin of the saturated water absorption less than 0.5%, ldpe resin or linear low density polyethylene resin
Layer, further, the density of first water blocking layer 4 and second water blocking layer 6 is 0.85g/cm3To 1.2g/cm3, have
Good water resistance characteristic.
In order to realize that thinning is handled, specifically, the thickness of first water blocking layer 4 and second water blocking layer 6 is equal
It is 25 μm to 75 μm, first flame-retardant layer 3 and 5 thickness of the second flame-retardant layer are 50 μm to 150 μm, and the third is fire-retardant
Layer 7 with a thickness of 50 μm to 120 μm, in order to guarantee good structural strength, further, first flame-retardant layer 3, described the
Two flame-retardant layers 5 and the third flame-retardant layer 7 in total with a thickness of 200 μm to 400 μm, first flame-retardant layer 3, second resistance
Fire the thickness in total of layer 5 and the third flame-retardant layer 7 and the thickness in total of first water blocking layer 4 and second water blocking layer 6
Than obtaining the outer diameter of the cable and wire in turn for 2:1 to 8:1 as 2.2mm to 6mm.
Above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although with reference to the foregoing embodiments
The application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the range of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. isolated fire-retardant cable electric wire, it is characterized in that: the central part of the cable and wire is equipped with copper core conductor (1), the copper core
The outside of conductor (1) is successively coated with PTFE insulating layer (2), the first flame-retardant layer (3), the first water blocking layer (4), the second flame-retardant layer
(5), the second water blocking layer (6) and third flame-retardant layer (7), first flame-retardant layer (3), second flame-retardant layer (5) and described
Three flame-retardant layers (7) are Corvic, polyvinyl resin, acrylic resin, EVA resin or polyamide resin layer, described
First water blocking layer (4) and second water blocking layer (6) are saturated water absorption less than 0.5% high-density polyethylene resin, low
Density Polyethylene Resin or linear low density polyethylene resin layer, the outer diameter of the cable and wire are 2.2mm to 6mm.
2. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: first water blocking layer (4) and described
The thickness of two water blocking layers (6) is 25 μm to 75 μm.
3. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: first flame-retardant layer (3) and described
Two flame-retardant layers (5) thickness is 50 μm to 150 μm.
4. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: the third flame-retardant layer (7) with a thickness of
50 μm to 120 μm.
5. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: first flame-retardant layer (3), described second
Flame-retardant layer (5) and the third flame-retardant layer (7) in total with a thickness of 200 μm to 400 μm.
6. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: first flame-retardant layer (3), described second
The thickness in total of flame-retardant layer (5) and the third flame-retardant layer (7) and first water blocking layer (4) and second water blocking layer (6)
The ratio of thickness in total be 2:1 to 8:1.
7. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: the PTFE insulating layer (2) is three layers
PTFE semi-directional band is sealed through seamless wrapped and sintering.
8. isolated fire-retardant cable electric wire according to claim 7, it is characterized in that: the degree of orientation of the PTFE semi-directional band is
1.2 to 1.4, with a thickness of 0.05 to 0.1mm.
9. isolated fire-retardant cable electric wire according to claim 1, it is characterized in that: first water blocking layer (4) and described
The density of two water blocking layers (6) is 0.85g/cm3To 1.2g/cm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920464007.7U CN209374144U (en) | 2019-04-08 | 2019-04-08 | Isolated fire-retardant cable electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920464007.7U CN209374144U (en) | 2019-04-08 | 2019-04-08 | Isolated fire-retardant cable electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209374144U true CN209374144U (en) | 2019-09-10 |
Family
ID=67824602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920464007.7U Expired - Fee Related CN209374144U (en) | 2019-04-08 | 2019-04-08 | Isolated fire-retardant cable electric wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209374144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007603A (en) * | 2019-12-02 | 2020-04-14 | 广州亚太线缆科技有限公司 | High-strength fire-resistant optical cable |
-
2019
- 2019-04-08 CN CN201920464007.7U patent/CN209374144U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007603A (en) * | 2019-12-02 | 2020-04-14 | 广州亚太线缆科技有限公司 | High-strength fire-resistant optical cable |
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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: 20190910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |