CN220106088U - Multi-cable-core low-smoke halogen-free flame-retardant control cable - Google Patents
Multi-cable-core low-smoke halogen-free flame-retardant control cable Download PDFInfo
- Publication number
- CN220106088U CN220106088U CN202321377310.6U CN202321377310U CN220106088U CN 220106088 U CN220106088 U CN 220106088U CN 202321377310 U CN202321377310 U CN 202321377310U CN 220106088 U CN220106088 U CN 220106088U
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- Prior art keywords
- cable
- core
- layer
- cores
- flame retardant
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 34
- 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 31
- 239000000779 smoke Substances 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000004698 Polyethylene 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
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
The utility model discloses a multi-cable-core low-smoke halogen-free flame-retardant control cable, which comprises an outer sheath, wherein a plurality of first cable cores and a plurality of second cable cores are arranged in the outer sheath, the plurality of first cable cores and the plurality of second cable cores are distributed in a straight shape, a supporting block is arranged between any two adjacent first cable cores, the first cable cores comprise a first flame-retardant layer, a first outer shielding layer, a first wrapping layer and a filling layer which are sequentially arranged from outside to inside, a plurality of wire cores are arranged in the filling layer, each wire core comprises a first conductor, a first inner insulating layer and a first inner shielding layer which are sequentially arranged from inside to outside, and each second cable core comprises a second conductor, a second insulating layer, a second shielding layer, a second wrapping layer and a second flame-retardant layer which are sequentially arranged from inside to outside. The cable disclosed by the utility model has two cable cores, the first cable core is of a multi-wire core structure, and the second cable core is of a single-wire core structure, so that the cable can adapt to application requirements of various scenes, and the cable is good in fireproof and flame-retardant effects.
Description
Technical Field
The utility model relates to the field of cables, in particular to a multi-cable-core low-smoke halogen-free flame-retardant control cable.
Background
Along with the continuous and rapid growth of Chinese economy, the use amount of cables is also increasing, the control cables are power connection lines for directly transmitting electric energy to various electric equipment from distribution points of an electric power system, and the control cables are used for transmitting control signals and can be laid in tunnels, underground cable trenches or underground pipelines.
The current authority publication number is CN108281223A provides a multicore control cable, this cable has outer lag, it is not fragile, provide flame retardant performance, but the whole flame retardant efficiency of this cable is weaker, only lean on outer lag still can not reach current requirement to flame retardance, this cable is when meetting the fire source, the condition of burning still takes place easily, when outer lag is burnt out, the fire can still further spread the inside of cable, the flame retardant efficiency of cable inside is weaker, finally the cable will damage completely, produce the loss of inestimable, and the cable core structure of this cable is comparatively single, can't satisfy the application demand of multiple scene, consequently, this cable is difficult to satisfy present people's user demand.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a control cable.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a control cable, includes the oversheath, be provided with a plurality of first cable cores and a plurality of second cable cores in the oversheath, a plurality of first cable cores and a plurality of the second cable cores are a style of calligraphy and distribute, arbitrary adjacent two be provided with the supporting shoe between the first cable core, first cable core includes from outside to interior first fire-retardant layer, first outer shielding layer, first band layer and the filling layer that sets gradually, be provided with a plurality of sinle silk in the filling layer, the sinle silk includes from interior first conductor, first insulating layer, the first interior shielding layer that sets gradually to outside, the second cable core includes from interior second conductor, second insulating layer, second shielding layer, second band layer, the second fire-retardant layer that sets gradually to outside, the oversheath adopts low smoke zero halogen fire-retardant polyolefin material to make, first band layer and second band layer are alkali-free glass fiber tape layer, first insulating layer and second insulating layer all are crosslinked polyethylene insulating layer.
Preferably, the structure of the supporting block is in an i shape, the supporting block extends along the length direction of the outer sheath, and both sides of the supporting block are provided with accommodating grooves capable of accommodating the first cable core;
therefore, the supporting block plays a good supporting role on the first cable core, and the torsion resistance of the cable is good.
Preferably, the outer sheath comprises a first sheath part, a second sheath part and a connecting part for connecting the first sheath part and the second sheath part, wherein the first sheath part and the second sheath part are flat, a plurality of first cable cores are distributed in the first sheath part at equal intervals in a straight shape, and a plurality of second cable cores are distributed in the second sheath part at equal intervals in a straight shape;
so that the overall structure of the cable is compact and stable.
Preferably, the first cable core has four, and the second cable core has two;
the first cable core is of a multi-wire core structure, and the second cable core is of a single-wire core structure, so that the application requirements of various scenes can be met.
Preferably, the top surface and the bottom surface of the connecting part are provided with concave parts which are concave towards the inner side of the connecting part;
therefore, the connecting part is narrower than the first sheath part and the second sheath part, the cable is convenient to bend, the use of each cable core cannot be affected, and wiring is further facilitated.
Preferably, the number of the wire cores in each first cable core is four, and the four wire cores are distributed in a rectangular array;
thereby further improving the stability of the cable.
Compared with the prior art, the utility model has the following beneficial effects:
1. the cable has a first cable core and a second cable core, wherein the first cable core is of a multi-wire core structure, and the second cable core is of a single-wire core structure, so that the cable can adapt to application requirements of various scenes.
2. The outer sheath of the cable comprises a first sheath part, a second sheath part and a connecting part, wherein the connecting part is narrower, so that the cable is convenient to bend, the use of each cable core cannot be influenced, and the wiring of the cable is facilitated.
3. Both cable cores have flame retardant coating, and the tape layer and the insulating layer of both also adopt flame retardant material, and the oversheath also has fire behavior to fire prevention, flame retardant efficiency are good.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a cross-sectional view of the overall structure of the present utility model;
FIG. 4 is an enlarged schematic view of FIG. 3 at B;
reference numerals illustrate: 1. an outer sheath; 1.1, a first sheath part; 1.2, a second sheath part; 1.3, a connecting part; 1.3.1, a recess; 2. a first cable core; 2.1, a first flame retardant layer; 2.2, a first outer shielding layer; 2.3, a first tape layer; 2.4, a filling layer; 2.4.1, a first conductor; 2.4.2, a first insulating layer; 2.4.3, a first inner shielding layer; 3. a second cable core; 3.1, a second conductor; 3.2, a second insulating layer; 3.3, a second shielding layer; 3.4, a second tape layer; 3.5, a second flame retardant layer; 4. a support block; 4.1, accommodating groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a multi-cable-core control cable as shown in the figure, which comprises an outer sheath 1, wherein a plurality of first cable cores 2 and a plurality of second cable cores 3 are arranged in the outer sheath 1, the plurality of first cable cores 2 and the plurality of second cable cores 3 are distributed in a straight shape, a supporting block 4 is arranged between any two adjacent first cable cores 2, the first cable cores 2 comprise a first flame-retardant layer 2.1, a first outer shielding layer 2.2, a first tape layer 2.3 and a filling layer 2.4 which are sequentially arranged from outside to inside, a plurality of wire cores are arranged in the filling layer 2.4, the wire cores comprise a first conductor 2.4.1, a first insulating layer 2.4.2 and a first inner shielding layer 2.4.3 which are sequentially arranged from inside to outside, the second cable cores 3 comprise a second conductor 3.1, a second insulating layer 3.2, a second shielding layer 3.3, a second tape layer 3.4, a second tape layer 3.5, a second tape layer 3.3 and a second halogen-free insulating layer 3.5, wherein the first tape layer and the second tape layer 3.3 are made of a flame-retardant polyethylene tape layer, and the second tape layer 3.5 are made of an alkali-free insulating and non-crosslinked glass-coated layer.
The structure of the supporting block 4 is I-shaped, the supporting block 4 extends along the length direction of the outer sheath 1, and the two sides of the supporting block 4 are respectively provided with a containing groove 4.1 capable of containing the first cable core 2; the outer sheath 1 comprises a first sheath part 1.1, a second sheath part 1.2 and a connecting part 1.3 for connecting the first sheath part and the second sheath part, wherein the first sheath part 1.1 and the second sheath part 1.2 are flat, a plurality of first cable cores 2 are distributed in the first sheath part 1.1 at equal intervals in a straight shape, and a plurality of second cable cores 3 are distributed in the second sheath part 1.2 at equal intervals in a straight shape; the first cable core 2 has four, and the second cable core 3 has two; the top surface and the bottom surface of the connecting part 1.3 are provided with concave parts 1.3.1 which are concave towards the inner side of the connecting part 1.3; the number of the wire cores in each first cable core 2 is four, and the four wire cores are distributed in a rectangular array.
Working principle: the cable disclosed by the utility model has the first cable core and the second cable core, wherein the first cable core is of a multi-wire core structure, the second cable core is of a single-wire core structure, so that the cable can adapt to application requirements of various scenes, the two cable cores are provided with flame-retardant layers, the wrapping tape layers and the insulating layers of the two cable cores are also made of flame-retardant materials, and the outer sheath also has fireproof performance, so that the cable is fireproof and has good flame-retardant effect, further spreading of fire is avoided under the protection of the flame-retardant layers and the wrapping tape layers in the cable, and therefore loss can be reduced.
While the utility model has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the scope of the utility model as defined in the following claims.
Claims (6)
1. The utility model provides a many cable core low smoke and zero halogen flame retardant control cable, its characterized in that, including oversheath (1), be provided with a plurality of first cable core (2) and a plurality of second cable core (3) in oversheath (1), a plurality of first cable core (2) and a plurality of second cable core (3) are the style of calligraphy and distribute, arbitrary adjacent two be provided with supporting shoe (4) between first cable core (2), first cable core (2) include by outer to interior first flame retardant layer (2.1), first outer shielding layer (2.2), first band layer (2.3) and filling layer (2.4) that set gradually, be provided with a plurality of sinle silk in filling layer (2.4), the sinle silk includes by interior first conductor (2.4.1), first insulating layer (2.4.2), first inner shielding layer (2.4.3) that set gradually outside to, second cable core (3) include by interior second to setting gradually second flame retardant layer (2.1), second band layer (3.3), second insulating layer (3.3) are the second, and are flame retardant layer (2.4.3), second insulating layer (3.3) are all made for second glass fiber reinforced layer (3.5), flame retardant layer (3.5).
2. The multi-cable-core low-smoke halogen-free flame-retardant control cable according to claim 1, wherein the structure of the supporting block (4) is I-shaped, the supporting block (4) extends along the length direction of the outer sheath (1), and both sides of the supporting block (4) are provided with containing grooves (4.1) capable of containing the first cable core (2).
3. The multi-cable-core low-smoke halogen-free flame-retardant control cable according to claim 1, wherein the outer sheath (1) comprises a first sheath part (1.1), a second sheath part (1.2) and a connecting part (1.3) for connecting the first sheath part and the second sheath part, the first sheath part (1.1) and the second sheath part (1.2) are flat, a plurality of first cable cores (2) are distributed in the first sheath part (1.1) at equal intervals in a shape of a line, and a plurality of second cable cores (3) are distributed in the second sheath part (1.2) at equal intervals in a shape of a line.
4. A multi-core low smoke zero halogen flame retardant control cable according to claim 3, characterized in that the first core (2) has four and the second core (3) has two.
5. A multi-core low smoke zero halogen flame retardant control cable according to claim 3, characterized in that the top and bottom surfaces of the connection part (1.3) each have a recess (1.3.1) recessed inwards of the connection part (1.3).
6. Multi-core low smoke zero halogen flame retardant control cable according to claim 1, characterized in that the core in each first cable core (2) has four cores, four cores being distributed in a rectangular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377310.6U CN220106088U (en) | 2023-06-01 | 2023-06-01 | Multi-cable-core low-smoke halogen-free flame-retardant control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377310.6U CN220106088U (en) | 2023-06-01 | 2023-06-01 | Multi-cable-core low-smoke halogen-free flame-retardant control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106088U true CN220106088U (en) | 2023-11-28 |
Family
ID=88843381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321377310.6U Active CN220106088U (en) | 2023-06-01 | 2023-06-01 | Multi-cable-core low-smoke halogen-free flame-retardant control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106088U (en) |
-
2023
- 2023-06-01 CN CN202321377310.6U patent/CN220106088U/en active Active
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