CN203773975U - Two-core flame-retardant flexible cable used for communication power supply - Google Patents
Two-core flame-retardant flexible cable used for communication power supply Download PDFInfo
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- CN203773975U CN203773975U CN201420138900.8U CN201420138900U CN203773975U CN 203773975 U CN203773975 U CN 203773975U CN 201420138900 U CN201420138900 U CN 201420138900U CN 203773975 U CN203773975 U CN 203773975U
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- Prior art keywords
- retardant
- layer
- flame
- power supply
- communication power
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- Expired - Lifetime
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 title claims abstract description 32
- 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 24
- 239000004020 conductor Substances 0.000 claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 16
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 24
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 201000004569 Blindness Diseases 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
A two-core flame-retardant flexible cable used for a communication power supply belongs to the electric wire and cable technology field. The flexible cable comprises a pair of conductive cores which is covered with an insulating layer respectively, a wrapping tape layer winding the pair of conductive cores, a filling layer filled in a cavity between the insulating layer and the wrapping tape layer, a sheath layer located outside the wrapping tape layer or a lining layer, an armor layer and an outer sheath of the armor layer, wherein the lining layer, the armor layer and the outer sheath of the armor layer are successively arranged outside the wrapping tape layer. The flexible cable is characterized in that the conductive cores are formed through intertwisting bare aluminum wires with a diameter of 0.2-1.15mm and are bare aluminum wire stranded conductors with a sectional area of 1.5-300mm<2>, wherein an annealing treatment is performed on the bare aluminum wires; the insulating layer, the sheath layer and the outer sheath of the armor layer are flame-retardant polyvinyl chloride. Flexibility is greatly increased. A minimum bending radius is four times of an external diameter of the cable. During laying construction, adaptability is good. Manufacturing cost is greatly reduced. Transportation storage and construction working cost is decreased and working intensity of construction personnel can be mitigated. Usage safety can be guaranteed.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, is specifically related to a kind of communication power supply two core flame-retardant flexible electric cables.
Background technology
Communication power supply flexible cable is a kind of electric connection line that supplies of communications facility, in the distribution system of telecommunication bureau station, distribution box cabinet and so on, is widely used.Communication power supply not only requires to have good flexibility with flexible cable, to conveniently lay under situation, and requires to have desirable anti-flammability in narrow space or similarly, to adapt to the instructions for use under the harsh occasion of fire-protection rating.
About communication power supply, by the technical information of flexible cable, can in disclosed Chinese patent literature, be seen in, for example CN201247632Y recommends to have that " communication power supply is with fire-retardant, fire-resistant, shielding anti-interference flexible cable ", CN201302849Y provides " a kind of communication power supply flame-retardant refractory flexible electric cable ", CN202230791Y discloses " the flame-retardant crosslinking polyethylene insulated flexible cable of a kind of communication power supply ", CN202720953U introduces to be had " for watt form drag combustion shielded flexible cable of communication power supply ", CN202855416U discloses " communication power supply fire-resistant shield flexible cable " and CN202601277U disclosed " a kind of communication power supply flame-retardant flexible electric cable ", etc..
Although the communication power supply that is not limited to exemplify above respectively has corresponding technique effect with flexible cable, but there is following common shortcoming: one, owing to all usining stranded thin copper wire as conductor, and this conductor is called five class copper conductors by industry, thereby soft degree can not meet the desired requirement.And because pliability is poor, bending radius is restricted, thus at narrow space, hindered by immovable object and even when the occasion at the place of talking in a roundabout way and so on is laid, very easily affect speed of application; Its two, owing to generally selecting with copper as the conductor of flexible cable, thereby not only there is the blindness of rationally using raw material aspect under technology prejudice, and cause the manufacturing cost of flexible cable large; Its three, due to heavy weight, thereby not only logistics transportation, the cost of storage in link are high, and workmen's labour intensity is large in laid processes, to consume cost of labor high.
In view of above-mentioned prior art, still have improved necessity, the applicant has done useful design for this reason, has formed technical scheme described below.
Summary of the invention
Task of the present utility model is to provide a kind of and contributes to significantly to enter to increase flexibility and use embodiment and conveniently lay and promote adaptability when small space is laid, be conducive to avoid the blindness that conductor material is selected and use reduction manufacturing cost, be of value to remarkable weight reduction and use and save such as logistics, storage, cable laying operation expense and alleviate workmen's labour intensity and have and be convenient to embody excellent anti-flammability and use and ensure to use safe communication power supply two core flame-retardant flexible electric cables.
Task of the present utility model completes like this, and a kind of communication power supply two core flame-retardant flexible electric cables comprise a pair of conductor wire core that is covered with separately insulating barrier; Be wrapped in the belting layer outside described pair of conductive core; Be filled in the packed layer in the hole between insulating barrier and belting layer; Be positioned at the restrictive coating outside described belting layer or be positioned at successively inner covering, armour and the armour oversheath outside belting layer, feature is: stranded that form and the sectional area of naked aluminium wire that described conductor wire core is is 0.2-1.15mm by the diameter through annealing in process is 1.5-300mm
2naked aluminium wire stranded conductor, described insulating barrier, restrictive coating and armour oversheath are flame-proof polyvinyl chloride.
The outermost direction of lay of naked aluminium wire stranded conductor described in the utility model is that left-hand is stranded, and direction of lay is between layers opposite each other.
The stranded joint square of naked aluminium wire stranded conductor described in the utility model is 10～25 times of naked aluminium wire stranded conductor diameter.
Belting layer described in the utility model is fire-retardant twining package tape.
Fire-retardant twining package tape described in the utility model is flame-proof glass fibre band or fire-retardant Halogen band.
Packed layer described in the utility model is fire-retardant packed layer.
Fire-retardant packed layer described in the utility model is fire-retardant PP gasket for packing or flame-proof PVC packing.
Inner covering described in the utility model is fire-retardant inner covering.
Fire-retardant inner covering described in the utility model is flame-proof PVC band or extrudes flame-proof PVC.
Armour described in the utility model is steel band.
One of technique effect of the technical scheme that the utility model provides, because stranded that form and the sectional area of naked aluminium wire that to have adopted by diameter be 0.2-1.15mm is 1.5-300mm
2naked aluminium wire stranded conductor as conductor wire core, thereby flexibility significantly improved, minimum bending radius is the outside diameter of cable four times, when cable laying operation, there is the good adaptability to the place such as small space, talking in a roundabout way; Two, owing under the prerequisite having overcome technology prejudice, naked aluminium wire stranded conductor being substituted to the bare copper wire stranded conductor in prior art, thereby not only significantly reduced manufacturing cost, and the adaptability of ambient temperature is not affected when cable rated operational voltage and cable laying; Three, because overall weight is significantly alleviated for the copper conductor in prior art, thereby be conducive to reduce transport and storage and construction operation cost, and can alleviate workmen's operation intensity; Four, because insulating barrier, restrictive coating and armour oversheath are flame-proof polyvinyl chloride, thereby can ensure and use safety.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the first example structure of the present utility model.
Fig. 2 is the cross sectional representation of the second example structure of the present utility model.
Embodiment
Refer to Fig. 1, as the first execution mode, provided pair of conductive core 1, outside this pair of conductive core 1, be coated with separately by insulating barrier 11, the belting layer 2 that is wrapped outside pair of conductive core 1 and is filled the post of by fire-retardant twining package tape, fire-retardant twining package tape is preferably used flame-proof glass fibre band (being fire-retardant glass fiber belt), is filled in the packed layer 3 of preferably being filled the post of by fire-retardant PP gasket for packing between pair of conductive core 1 and belting layer 2.The squeeze jacket machinery generally using with wires and cables industry squeezes flame-proof polyvinyl chloride to overlay on outside belting layer 2, thereby at the outer formation restrictive coating 4 of belting layer 2.Hence one can see that, and pair of conductive core 1, belting layer 2 and packed layer 3 are configured in fact cable core, and packed layer 3 plays the effect (under being wrapped of belting layer 2) that makes cable core rounding.The technical essential of the technical scheme providing as the utility model: stranded that form and the sectional area of naked aluminium wire that pair of conductive core 1 is is 0.2-1.15mm by the diameter through annealing in process is 1.5-300mm
2naked aluminium wire stranded conductor, and insulating barrier 2 is flame-proof polyvinyl chloride.Aforesaid fire-retardant twining package tape also can be used fire-retardant Halogen band, and aforesaid packed layer 3 also can be used flame-proof PVC packing.
The direction of lay between layers of above mentioned naked aluminium wire stranded conductor is: it is stranded that outermost direction of lay should be left-hand, and it is contrary that the direction of lay between each layer keeps, in stranded process, twisting pitch is controlled to 10～25 times for naked aluminium wire stranded conductor diameter, being preferably 15～25 times, is 15～20 times better.
The i.e. communication power supply as shown in Figure 1 being obtained by embodiment of the present utility model is essentially communication power supply two core flame-retardant flexible electric cables of non-armored type with two core flame-retardant flexible electric cables, its rated operational voltage is 450～750V and 600～1000V; Long-term work adaptive temperature is :-20 ℃～70 ℃; Minimum bending radius is greater than four times of the outside diameter of cable.
Refer to Fig. 2, as the second execution mode, outside belting layer 2 successively in conjunction with inner covering 5, armour 6 and armour oversheath 7, inner covering 5 is fire-retardant inner covering, the present embodiment is selected with extruding flame-proof PVC (also can use flame-proof PVC band) as fire-retardant inner covering, and armour 6 adopts steel band, and armour oversheath 7 is flame-proof polyvinyl chloride, squeeze and overlay on outside armour 6, all the other are all with the description to the first execution mode.Hence one can see that this execution mode of the present utility model obtains communication power supply as shown in Figure 2 with two core flame-retardant flexible electric cables, be essentially communication power supply two core flame-retardant flexible electric cables of armored type, bending radius is to be greater than 15 times of the outside diameter of cable.
The conductor (being naked aluminium wire stranded conductor) that the utility model is recommended has difference substantial and that be difficult to be come to realize by those of skill in the art with a known class and two class aluminium conductors in wires and cables industry, because a known class and two class aluminium conductors are commonly a class duralumin conductor and two class duralumin conductors in wires and cables industry.Yet, the utility model adopts 5 classes (five classes) ultra-fine aluminium monofilament is stranded and forms, adopting aforesaid diameter is the naked aluminium wire stranded conductor of 0.2-1.15mm, the conductor of this structure in China's wires and cables industry up to now in space state, and there is no national standard and/or industry standard can follow, the applicant is applied to the cable that communication power supply is used, and has the positive effect that is confirmed the technique effect referring in superincumbent technique effect hurdle.
Above-mentioned conductor wire core 1 preferably but the cross section of 16 kinds of specifications being not limited to, the relation between the radical of naked aluminium wire and the diameter of naked aluminium wire monofilament by shown in following table:
。
Claims (10)
1.
communication power supply two core flame-retardant flexible electric cables, comprise a pair of conductor wire core (1) that is covered with separately insulating barrier (11); Be wrapped in the outer belting layer (2) of described pair of conductive core (1); Be filled in the packed layer (3) in the hole between insulating barrier (11) and belting layer (2); Be positioned at the outer restrictive coating (4) of described belting layer (2) or be positioned at successively belting layer (2) outer inner covering (5), armour (6) and armour oversheath (7), being characterized in: stranded that form and the sectional area of naked aluminium wire that described conductor wire core (1) is is 0.2-1.15mm by the diameter through annealing in process is 1.5-300mm 2 naked aluminium wire stranded conductor, described insulating barrier (11), restrictive coating (4) and armour oversheath (7) are flame-proof polyvinyl chloride.
2.
communication power supply according to claim 1 two core flame-retardant flexible electric cables, it is characterized in that the outermost direction of lay of described naked aluminium wire stranded conductor is that left-hand is stranded, and direction of lay are between layers opposite each other.
3.
communication power supply according to claim 1 and 2 two core flame-retardant flexible electric cables, the stranded joint square that it is characterized in that described naked aluminium wire stranded conductor is 10～25 times of naked aluminium wire stranded conductor diameter.
4.
communication power supply according to claim 1 two core flame-retardant flexible electric cables, is characterized in that described belting layer (2) is fire-retardant twining package tape.
5.
communication power supply according to claim 4 two core flame-retardant flexible electric cables, is characterized in that described fire-retardant twining package tape is flame-proof glass fibre band or fire-retardant Halogen band.
6.
communication power supply according to claim 1 two core flame-retardant flexible electric cables, is characterized in that described packed layer (3) is fire-retardant packed layer.
7.
communication power supply according to claim 6 two core flame-retardant flexible electric cables, is characterized in that described fire-retardant packed layer is fire-retardant PP gasket for packing or flame-proof PVC packing.
8.
communication power supply according to claim 1 two core flame-retardant flexible electric cables, is characterized in that described inner covering (5) is fire-retardant inner covering.
9.
communication power supply according to claim 8 two core flame-retardant flexible electric cables, is characterized in that described fire-retardant inner covering is flame-proof PVC band or extrudes flame-proof PVC.
10.
communication power supply according to claim 1 two core flame-retardant flexible electric cables, is characterized in that described armour (6) is steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138900.8U CN203773975U (en) | 2014-03-26 | 2014-03-26 | Two-core flame-retardant flexible cable used for communication power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138900.8U CN203773975U (en) | 2014-03-26 | 2014-03-26 | Two-core flame-retardant flexible cable used for communication power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773975U true CN203773975U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138900.8U Expired - Lifetime CN203773975U (en) | 2014-03-26 | 2014-03-26 | Two-core flame-retardant flexible cable used for communication power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN203773975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886953A (en) * | 2014-03-26 | 2014-06-25 | 中利科技集团股份有限公司 | Two-core inflaming retarding flexible cable for communication power supply |
-
2014
- 2014-03-26 CN CN201420138900.8U patent/CN203773975U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886953A (en) * | 2014-03-26 | 2014-06-25 | 中利科技集团股份有限公司 | Two-core inflaming retarding flexible cable for communication power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215542 Jiangsu city in Suzhou Province, Southeast of Changshu Economic Development Zone No. 8 Chang kunlu Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Address before: 215542 Jiangsu city in Suzhou Province, Southeast of Changshu Economic Development Zone No. 8 Chang kunlu Patentee before: ZHONGLI SCI-TECH GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |