CN220290510U - Twisted pair cable for intelligent detection system - Google Patents
Twisted pair cable for intelligent detection system Download PDFInfo
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- CN220290510U CN220290510U CN202322349601.0U CN202322349601U CN220290510U CN 220290510 U CN220290510 U CN 220290510U CN 202322349601 U CN202322349601 U CN 202322349601U CN 220290510 U CN220290510 U CN 220290510U
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- layer
- detection system
- intelligent detection
- fire
- twisted pair
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 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 22
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000003063 flame retardant Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 239000004636 vulcanized rubber Substances 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 9
- 229920001778 nylon Polymers 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 241000256602 Isoptera Species 0.000 abstract description 7
- 230000035929 gnawing Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 241000700159 Rattus Species 0.000 description 12
- 241000257303 Hymenoptera Species 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004718 silane crosslinked polyethylene Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 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
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
The utility model provides a twisted pair cable for an intelligent detection system, which comprises at least one twisted pair, wherein the twisted pair is obtained by twisting two wires, and the wires comprise conductors; a refractory belt which is wrapped outside the conductor; the insulating layer is wrapped on the outer side of the fire-resistant belt in an extrusion mode; the sheath layer is wrapped on the outer side of the insulating layer in an extrusion mode, wherein the insulating layer and the sheath layer are made of flame-retardant weather-proof thermoplastic vulcanized rubber materials, and the average thickness of the sheath layer is larger than that of the insulating layer. The utility model adopts the three-layer insulating structure of the fire-resistant belt and the double-layer flame-retardant weather-resistant TPV material, can improve the fire resistance grade of the electric wire, increase the high temperature resistance and the insulating property of the electric wire, and improve the operation performance of the electric wire; the flame retardant performance accords with the A level of bunched flame retardant, and the electric wire cannot be easily damaged by fire under the condition of fire; because the TPV material has higher hardness, the effects of preventing rat and termite gnawing can be achieved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a twisted pair cable for an intelligent detection system.
Background
The twisted pair cable is a cable comprising two independent insulated wires twisted together as a basic unit (a pair of wires) and then a plurality of pairs of wires. Typically, twisted pair cables are cables comprising a number (typically 15 to thousands) of twisted pairs (two insulated core pairs), which act similarly to twisted pairs to reduce the effects of electromagnetic radiation and external electromagnetic interference.
The twisted pair used in the traditional fire-fighting and alarm system is usually formed by coating an insulating wire core structure of a PVC insulating layer with the temperature resistant of 70 ℃ outside 6 types of conductors and then twisting the two insulating wire cores together at a certain pitch. However, the products have a plurality of defects: 1. the insulation material has poor weather resistance and low temperature resistance level, and the circuit is easy to break down; 2. the insulating material is softer, and the insulating layer is easy to damage during installation and laying, so that potential safety hazards are caused; 3. the insulating layer is easy to be eaten by rats and ants, so that line faults and the like are caused; 4. the insulation layer has serious aging phenomenon in the operation process, so that the service life of the cable is short.
At present, a plurality of researches adopt a novel insulating layer to improve the high temperature resistance of PVC (polyvinyl chloride), for example, chinese patent publication No. CN208351956U discloses an environment-friendly twisted pair, which comprises a three-layer insulating wire core, an oxygen-free copper conductor is sequentially longitudinally wrapped with a ceramic fire-resistant composite tape, and an extruded silane crosslinked polyethylene insulating layer and a silane crosslinked halogen-free low-smoke flame-retardant polyolefin insulating layer are sequentially wrapped. Although the technical scheme can improve the high temperature resistance of twisted pairs, the used silane crosslinked halogen-free low-smoke flame-retardant polyolefin insulating material has low hardness and is easy to be eaten by rats and ants to expose the silane crosslinked polyethylene insulating material; meanwhile, the silane crosslinked polyethylene insulating material has poor flame retardance, so that the electric wire is easy to damage by fire.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a twisted pair cable for an intelligent detection system, which has good high temperature resistance, insulating property and rat and termite gnawing prevention capability.
To achieve the above and other objects, the present utility model is achieved by comprising the following technical solutions: the utility model provides a twisted pair cable for an intelligent detection system, which comprises at least one twisted pair, wherein the twisted pair is obtained by twisting two wires, and the cable is characterized by comprising a conductor; a refractory belt which is wrapped outside the conductor; the insulating layer is wrapped on the outer side of the fire-resistant belt in an extrusion mode; the sheath layer is wrapped on the outer side of the insulating layer in an extrusion mode, wherein the insulating layer and the sheath layer are made of flame-retardant weather-proof thermoplastic vulcanized rubber materials, and the average thickness of the sheath layer is larger than that of the insulating layer.
Further, the conductor is a multi-strand fine soft copper conductor.
Further, the fire-resistant belt is a 2-layer mica belt, and the thickness is 0.14-0.17 mm.
Further, the average thickness of the insulating layer is 0.4 mm-0.6 mm, and the thickness of the thinnest point is not less than 90% of the average thickness.
Further, the average thickness of the sheath layer is 0.8-1.0 mm, and the thickness of the thinnest point is not less than 85% of the average thickness.
Further, a nylon layer is extruded between the insulating layer and the sheath layer.
Further, the nylon layer has a thickness of 0.2mm.
Further, an optical fiber unit is arranged at the center of the conductor, the optical fiber unit comprises an optical cable and a copper pipe, and the copper pipe is welded and armored on the outer side of the optical cable.
Further, the fiber optic cable is a single core multimode fiber optic cable.
Further, the breaking force of the optical fiber unit is not lower than 700N.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model adopts the three-layer insulating structure of the fire-resistant belt and the double-layer flame-retardant weather-resistant TPV material, can improve the fire resistance grade of the electric wire, increase the high temperature resistance and the insulating property of the electric wire, and improve the operation performance of the electric wire; the flame retardant performance accords with the A level of bunched flame retardant, and the electric wire cannot be easily damaged by fire under the condition of fire; the temperature resistant range of the TPV material is-55-125 ℃, so that the cold resistance and the high temperature resistance of the electric wire can be greatly improved; in addition, the TPV material has higher hardness and can play a role in preventing rat and termite gnawing;
2. the average thickness of the sheath layer is larger than that of the insulating layer, so that the protective effect on the insulating layer can be improved, and the flame retardant property of the electric wire is further improved;
3. a nylon layer is extruded between the insulating layer and the sheath layer, so that the conductor can be prevented from being exposed due to external mechanical damage after the sheath layer is damaged, the continuous use of the electric wire is ensured, the safety is improved, and the service life is prolonged; simultaneously, the nylon material can also prevent the biting of the rats and the ants, so that the wire has the function of preventing the rats and the ants;
4. an optical fiber unit is arranged in the center of the conductor, so that the safe operation condition of the household appliance is monitored, and faults such as overhigh temperature in a circuit are rapidly identified, thereby greatly prolonging the service life of an electric wire line.
Drawings
Fig. 1 is a schematic structural diagram of a twisted pair cable for an intelligent detection system according to the present utility model.
Fig. 2 is a schematic cross-sectional view of a single wire in a twisted pair cable for an intelligent detection system according to the present utility model.
Detailed Description
Please refer to fig. 1 and 2. Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof.
Unless defined otherwise, technical or scientific terms used herein should be taken as the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The use of the terms "a," "an," or "the" and similar referents in the context of describing the utility model are not to be construed to limit the scope of the utility model but are to be construed to mean that there is at least one. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.
As shown in fig. 1, the utility model provides a twisted pair cable for an intelligent detection system, which comprises at least one twisted pair 1, wherein the twisted pair 1 is obtained by twisting two wires 10, each wire 10 comprises a conductor 11, a fire-resistant belt 12, an insulating layer 13 and a sheath layer 14, the fire-resistant belt 12 is coated on the outer side of the conductor 11, the insulating layer 13 is coated on the outer side of the fire-resistant belt 12 in an extrusion manner, and the sheath layer 14 is coated on the outer side of the insulating layer 13 in an extrusion manner, wherein the insulating layer 13 and the sheath layer 14 are made of flame-retardant weather-resistant thermoplastic vulcanized rubber (TPV) materials, and the average thickness of the sheath layer 14 is larger than that of the insulating layer 13. The average thickness of the sheath layer 14 is larger than that of the insulating layer 13, so that the protective effect on the insulating layer 13 can be improved, and the flame retardant property of the electric wire can be further improved.
The utility model adopts a three-layer insulating structure of the fire-resistant belt and the double-layer flame-retardant weather-resistant TPV material, and has the characteristics of no halogen, low smoke, flame retardance, no toxicity of combustion products and no secondary pollution; the fire resistance grade of the electric wire can be improved, the high temperature resistance and the insulation performance of the electric wire are improved, and the operation performance of the electric wire is improved; in addition, the TPV material has higher hardness and can play a role in preventing rat and termite gnawing.
Referring to fig. 2, the conductor 11 may be a plurality of thin soft copper conductors, which are soft in texture and more convenient for installation and laying.
The fire-resistant belt 12 is a 2-layer mica tape, the thickness is controlled to be 0.14-0.17 mm, the fire-resistant grade of the electric wire can be improved, and the high temperature resistance and the insulation performance of the electric wire can be improved.
The insulating layer 13 is made of a flame-retardant weather-resistant thermoplastic vulcanized rubber (TPV) material, has the characteristics of scratch resistance, wear resistance and water resistance, has a temperature resistance range of-55-125 ℃, can greatly improve the cold resistance and high temperature resistance of the cable, and improves the operation performance of the electric wire; the flame retardant performance accords with the A level of bunched flame retardant, and the electric wire cannot be easily damaged by fire under the condition of fire; and the TPV material has higher hardness and can play a role in preventing rat and termite gnawing. The average thickness of the insulating layer is controlled to be 0.4-0.6 mm, and the thickness of the thinnest point is not less than 90% of the average thickness.
The sheath layer 14 is made of a flame-retardant weather-resistant thermoplastic vulcanized rubber (TPV) material, has the characteristics of scratch resistance, wear resistance and water resistance, has a temperature resistance range of-55-125 ℃, can greatly improve the cold resistance and high temperature resistance of the cable, and improves the running performance of the electric wire; the flame retardant performance accords with the A level of bunched flame retardant, and the electric wire cannot be easily damaged by fire under the condition of fire; and the TPV material has higher hardness and can play a role in preventing rat and termite gnawing. The average thickness of the sheath layer 14 is controlled to be 0.8 mm-1.0 mm, and the thickness of the thinnest point is not less than 85% of the average thickness. The use of the sheath layer 14 increases the protection of the insulating layer 13, further increasing the flame retardant properties of the cable.
Further, in order to ensure that the conductor 11 is still exposed from external mechanical damage after the sheath layer 14 is damaged, thereby ensuring the continuous use of the electric wire, increasing the safety and prolonging the service life, a nylon layer 15 may be extruded between the insulating layer 13 and the sheath layer 14, and the thickness of the nylon layer 15 may be 0.2mm. In addition, the nylon layer 15 can also prevent the biting of the rats and the ants, so that the electric wire has the function of preventing the rats and the ants.
Further, in order to realize monitoring of safe operation conditions of the household appliances, fast identification of faults such as excessive temperature in a circuit is performed, so that the service life of an electric wire line is greatly prolonged, an optical fiber unit 20 can be arranged at the center of the conductor 11, the optical fiber unit 20 comprises an optical cable 21 and a copper tube 22, the optical cable 21 can be a 50/125 single-core multimode optical cable, the copper tube 22 is welded and armored to the outer side of the optical cable 21, and the optical fiber unit 20 is used for monitoring safe operation conditions of the household appliances, and can fast identify temperature change conditions in the circuit and the like. Further, in order to prevent the optical fiber unit 20 from being damaged, the breaking force of the optical fiber unit 20 is not less than 700N.
In conclusion, the pair-twisted cable for the intelligent detection system provided by the utility model has good high temperature resistance and insulating property, and has better rat and termite gnawing prevention capability and service life than the prior art.
Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A twisted pair cable for a smart detection system, comprising at least one twisted pair of wires, said twisted pair being obtained by twisting two wires, said wires comprising
A conductor;
a refractory belt which is wrapped outside the conductor;
the insulating layer is wrapped on the outer side of the fire-resistant belt in an extrusion mode;
the sheath layer is wrapped outside the insulating layer in an extrusion mode;
the insulation layer and the sheath layer are made of flame-retardant weather-resistant thermoplastic vulcanized rubber materials, and the average thickness of the sheath layer is larger than that of the insulation layer.
2. The pair cable for an intelligent detection system according to claim 1, wherein the conductor is a multi-strand fine soft copper conductor.
3. The twisted pair cable for intelligent detection system according to claim 1, wherein said fire-resistant tape is a 2-layer mica tape having a thickness of 0.14mm to 0.17mm.
4. The pair cable for intelligent detection system according to claim 1, wherein the average thickness of the insulating layer is 0.4mm to 0.6mm, and the thinnest point thickness is not less than 90% of the average thickness.
5. The pair cable for intelligent detection system according to claim 4, wherein the average thickness of the sheath layer is 0.8 mm-1.0 mm, and the thinnest point thickness is not less than 85% of the average thickness.
6. The pair cable for an intelligent detection system according to claim 1, wherein a nylon layer is extruded between the insulating layer and the sheath layer.
7. The pair cable for an intelligent detection system according to claim 6, wherein the nylon layer has a thickness of 0.2mm.
8. The pair cable for an intelligent detection system according to claim 1, wherein an optical fiber unit is arranged at the center of the conductor, the optical fiber unit comprises an optical cable and a copper tube, and the copper tube is armored on the outer side of the optical cable in a welding manner.
9. The pair cable for an intelligent detection system according to claim 8, wherein the optical cable is a single core multimode optical cable.
10. The twisted pair cable for intelligent detection system according to claim 8 or 9, wherein a breaking force of said optical fiber unit is not less than 700N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349601.0U CN220290510U (en) | 2023-08-30 | 2023-08-30 | Twisted pair cable for intelligent detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349601.0U CN220290510U (en) | 2023-08-30 | 2023-08-30 | Twisted pair cable for intelligent detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220290510U true CN220290510U (en) | 2024-01-02 |
Family
ID=89327515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322349601.0U Active CN220290510U (en) | 2023-08-30 | 2023-08-30 | Twisted pair cable for intelligent detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220290510U (en) |
-
2023
- 2023-08-30 CN CN202322349601.0U patent/CN220290510U/en active Active
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