CN216719575U - Fire-resistant control cable resistant to mechanical impact and water spraying and used for fire-fighting system - Google Patents
Fire-resistant control cable resistant to mechanical impact and water spraying and used for fire-fighting system Download PDFInfo
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- CN216719575U CN216719575U CN202123062657.5U CN202123062657U CN216719575U CN 216719575 U CN216719575 U CN 216719575U CN 202123062657 U CN202123062657 U CN 202123062657U CN 216719575 U CN216719575 U CN 216719575U
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- insulating layer
- control cable
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000005507 spraying Methods 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 93
- 239000003063 flame retardant Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 18
- 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 description 15
- 239000007921 spray Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000005191 phase separation Methods 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 12
- 239000000919 ceramic Substances 0.000 description 5
- 239000010445 mica Substances 0.000 description 5
- 229910052618 mica group Inorganic materials 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model discloses a fire-resistant control cable for a fire-fighting system, which is resistant to mechanical impact and water spraying and belongs to the technical field of wires and cables. The utility model relates to a fire-resistant control cable for a fire-fighting system, which is resistant to mechanical impact and water spraying and structurally comprises a conductor, a split-phase fire-resistant insulating layer, an insulating layer, a filling layer, a wrapped fire-resistant insulating layer, a metal fire-resistant layer and an outer sheath.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a fire-resistant control cable for a fire-fighting system, which is resistant to mechanical impact and water spraying.
Background
The cable is not only subjected to simple combustion of flame in a real fire scene, but also to impact vibration caused by collapse of various objects or building components and the like, and impact and spraying for preventing water spraying in the fire fighting process. Therefore, to ensure the normal operation of the cable and the normal power supply to the equipment in a fire scene, the cable must also have the additional functions of mechanical shock resistance and water spray resistance.
GB51348-2019 newly published in 2019, electrical design Standard of civil buildings, specifies that: the alarm bus of the automatic fire alarm system adopted in the sparse channel of the dense personnel place is a wire cable with the combustion performance of B1 grade. For public buildings with the building height of 100m, wires and cables with the combustion performance of B1 grade and above, the smoke generating toxicity of t0 grade and the combustion drop/particle grade of d0 grade are selected.
The utility model discloses a utility model patent with publication number 201420175450.X and name 'a fire-resistant electric wire and fire-resistant cable with vibration resistance and water-resistant spraying function' by the national intellectual property office in 11/02/2015, and discloses a fire-resistant electric wire and fire-resistant cable with vibration resistance and water-resistant spraying function. The fire-resistant wire comprises a conductor and a mica tape layer wound on the conductor, wherein a ceramic silicon rubber insulating layer is extruded outside the mica tape layer. The fire resistant cable includes a plurality of fire resistant wires. The mica tape layer of the fire-resistant wire and the fire-resistant cable is arranged in the ceramic silicon rubber layer, and cannot fall off under the protection of the ceramic silicon rubber layer outside, and the mica on the mica tape layer cannot fall off to lose the fire-resistant function due to vibration or bending. The insulation of the utility model requires ceramic silicon rubber, which is not suitable for a fire-fighting system adopting a cross-linked polyethylene insulated cable, and the ceramic silicon rubber has higher cost, thus increasing the project cost; in the aspect of combustion performance, the cable does not meet the performance requirement of combustion performance B1 level, does not meet the requirement of fire fighting on the safety of the cable in actual fire and does not meet the regulation of civil building electrical design standard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the technical defects and provides a fire-resistant control cable for a fire-fighting system, which is resistant to mechanical impact and water spraying, can meet fire-resistant, impact and spraying tests specified by national fire-fighting test standards and British BS6387 standards, and ensures a good electrical insulation state of a product in case of fire so as to maintain normal power supply for a long time. Meanwhile, the cable belongs to a green environment-friendly safe cable relative to a traditional fire-resistant cable, and meets the requirement of fire fighting on the safety of the cable in an actual fire.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a fire-resistant control cable for a fire-fighting system with mechanical impact resistance and water spraying resistance structurally comprises a conductor, a split-phase fire-resistant insulating layer, an insulating layer, a filling layer, a fire-resistant layer, a metal fire-resistant layer and an outer sheath, wherein the insulation layer is filled with a filler; the outside parcel of conductor has the phase separation fire-resistant insulation layer, phase separation fire-resistant insulation layer outside parcel has the insulating layer, the outside parcel of insulating layer has the package fire-resistant insulation layer of system, the filling layer is in the gap department of many insulation core transposition, the package fire-resistant insulation layer outside parcel of system has the metal flame retardant coating, the outside parcel of metal flame retardant coating has the oversheath.
The conductor is a copper conductor for electricians.
The split-phase fire-resistant insulating layer is formed by lapping and wrapping synthetic mica tapes on the surface of a conductor in an overlapping way; the lapping is smooth and compact, and the lapping rate of the lapping is 15 to 20 percent; the number of layers was 3.
The insulating layer is formed by extruding a layer of plastic insulating material on the surface of the phase-splitting fire-resistant insulating layer.
The filling means that the high-temperature flame-retardant filling rope is tightly filled in the gap of the cable core to ensure that the cable core is round and tight.
The dry flame retardant coating is formed by lapping and covering synthetic mica tapes on the surface of the cable core in an overlapping way, wherein the lapping and covering rate is 15-20%;
the metal fireproof layer is formed by lapping soft copper tapes in a single-layer overlapping mode, and the lapping and covering rate of the lapping is 15% -20%;
the outer sheath is made of high-flame-retardant low-smoke halogen-free flame-retardant polyolefin sheath material.
The utility model has the beneficial effects that:
compared with the traditional fire-resistant cable, the fire-resistant control cable for the fire-fighting system with mechanical impact resistance and water spraying resistance, which is designed by the utility model, has the following fire resistance:
1. simple fire resistance: the fire-resistant temperature is 830-870 ℃, which is higher than the test temperature of 750-800 ℃ of the traditional fire-resistant cable.
2. And (3) fire supply time: 120min, which is 90min higher than the fire resistance test of the traditional fire-resistant cable.
3. Mechanical impact resistance: the mechanical impact vibration generating device is composed of a low-carbon steel round bar with the diameter of (25.0 +/-0.1) mm and the length of (600 +/-5) mm, 5min +/-10 s after the combustor is started and ignited in a fire resistance test and 5min +/-10 s every other after the combustor is started, the impact vibration generating device impacts a test ladder frame, and after each impact, the impact bar is lifted from the test ladder frame within 20s after the impact. During this time, the applied voltage should be maintained and the cable is not short circuited.
4. Water spray resistance: the water spraying is a scene for preventing water spraying in a simulated fire scene and is continuously carried out after 105min of a fire resistance test. The spraying time is 15min, water flow in the spraying process is uninterrupted, fire supply and mechanical impact are not stopped during the continuous water spraying test, the voltage applied to the cable is kept during the continuous water spraying test, and the cable is not short-circuited.
5. Environmental protection performance: the fire-resistant cable belongs to a fire-fighting line and is generally laid indoors, so that the requirement on environmental protection is met, the product disclosed by the utility model has the advantages that the released heat is low, the smoke generation is small, toxic and harmful corrosive gases such as HCL (hydrogen chloride), HF (hydrogen fluoride) and the like can not be released under the condition of fire burning, the influence of the fire on the life safety is reduced, the influence degree of the cable burning on the combustion supporting of the surrounding environment is reduced, and the requirement of fire fighting on the cable safety in actual fire is met.
6. B1 grade combustion performance: the product meets the performance requirement of the combustion performance level B1, and meets the regulation in GB51348-2019 civil building electrical design Standard which is newly released in 2019: the alarm bus of the automatic fire alarm system adopted in the sparse channel of the dense personnel place is a wire cable with the combustion performance of B1 grade. For public buildings with the building height of 100m, wires and cables with the combustion performance of B1 grade and above, the smoke generating toxicity of t0 grade and the combustion drop/particle grade of d0 grade are selected.
7. The fire resistance of the utility model can not only pass the national fire test standard, but also meet the line integrity test specified in the international electrotechnical commission standard IEC60331 and British standards BS6387 and BS 8491.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
The labels in the figure are: 1. a conductor; 2. a phase-splitting fire-resistant insulating layer; 3. an insulating layer; 4. filling; 5. packaging a refractory insulating layer; 6. a metal fire-resistant layer; 7. an outer sheath.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to the attached drawings 1 as a preferred embodiment of the utility model:
the fire-resistant control cable for the fire fighting system with mechanical impact resistance and water spraying resistance is structurally characterized by comprising a conductor 1; the cable comprises a conductor 1, a split-phase fire-resistant insulating layer 2 is wrapped on the outer side of the conductor 1, an insulating layer 3 is wrapped on the outer side of the split-phase fire-resistant insulating layer 2, a totally wrapped fire-resistant insulating layer 5 is wrapped on the outer side of the insulating layer 3, a filling layer 4 is arranged in a gap between cable cores, a metal fire-resistant layer 6 is wrapped on the outer side of the totally wrapped fire-resistant insulating layer 5, an outer sheath 7 is wrapped on the outer side of the metal fire-resistant layer 6, the conductor 1 is a single solid round copper single wire, the diameter of the single wire is 1.38mm, 5 single wires are formed, and the split-phase fire-resistant insulating layer 2 is formed by overlapping and wrapping a synthetic mica tape on the surface of the conductor 1; the lapping needs to be smooth and compact, and the lapping rate of the lapping is 20%; 3 layers of insulating materials are extruded on the surface of the split-phase fire-resistant insulating layer 2, the insulating materials are made of cross-linked polyethylene, the extrusion thickness is 0.6mm, 5 insulating materials are extruded, the filling 4 is that a high-temperature flame-retardant filling rope is tightly filled in a gap where the 5 insulating cores are twisted, the 5 insulating cores are twisted to form a round cable core, the uniformly-coated fire-resistant layer 5 is that a synthetic mica tape is overlapped and wrapped on the surface of the cable core, and the wrapping and covering rate is 15%; the number of layers is 1, metal flame retardant coating 6 is to adopt soft copper tape individual layer to overlap around package 5 surfaces on the package fire-resistant insulation layer of system, overlaps to take the lid percentage 15% around the package, and institute oversheath 7 is to adopt high fire-retardant low smoke and zero halogen fire-retardant polyolefin sheath material crowded package at metal flame retardant coating 6 surfaces, extrudes thickness 1.2 mm.
Example 2
The fire-resistant control cable for the fire-fighting system with mechanical impact resistance and water spraying resistance is structurally characterized by comprising a conductor 1; the cable comprises conductors 1, phase-splitting fire-resistant insulating layers 2, insulating layers 3, a primary package fire-resistant insulating layer 5, a filling layer 4 and a metal fire-resistant layer 6, wherein the phase-splitting fire-resistant insulating layers 2 wrap the outer sides of the insulating layers 3, the primary package fire-resistant insulating layers 5 wrap the outer sides of the insulating layers 3, the filling layer 4 is arranged in a cable core gap, the metal fire-resistant layer 6 wraps the outer sides of the primary package fire-resistant insulating layers 5, an outer sheath 7 wraps the outer side of the metal fire-resistant layer 6, the conductors 1 are 30 conductors twisted by thin round copper monofilaments with the diameter of 0.2mm, the conductors 3 are arranged, and the phase-splitting fire-resistant insulating layers 2 are formed by overlapping synthetic mica tapes on the surfaces of the conductors 1; the lapping needs to be smooth and compact, and the lapping rate of the lapping is 20%; the number of layers is 3, 3 layers are wrapped, the insulation 3 means that a layer of plastic insulation material is extruded on the surface of the split-phase fire-resistant insulation layer 2, the insulation material adopts low-smoke halogen-free flame-retardant polyolefin, the extrusion thickness is 0.6mm, 3 layers are extruded, the filling 4 means that a high-temperature flame-retardant filling rope is tightly filled in gaps formed by twisting 3 insulating cores, the 3 insulating cores are twisted to form a round cable core, the unified wrapping fire-resistant layer 5 means that a synthetic mica tape is overlapped and wrapped on the surface of the cable core, and the wrapping cover ratio is 20%; the number of layers is 1, metal flame retardant coating 6 is to adopt soft copper tape individual layer to overlap around package 5 surfaces on the package fire-resistant insulation layer of system, overlaps to take the lid percentage 15% around the package, and institute oversheath 7 is to adopt high fire-retardant low smoke and zero halogen fire-retardant polyolefin sheath material crowded package at metal flame retardant coating 6 surfaces, extrudes thickness 1.2 mm.
Claims (8)
1. A fire-resistant control cable for a fire-fighting system with mechanical impact resistance and water spraying resistance structurally comprises a conductor (1), a split-phase fire-resistant insulating layer (2), an insulating layer (3), a filling layer (4), a totally wrapped fire-resistant insulating layer (5), a metal fire-resistant layer (6) and an outer sheath (7); the outside parcel of conductor (1) has phase separation fire-resistant insulation layer (2), phase separation fire-resistant insulation layer (2) outside parcel has insulating layer (3), the outside parcel of insulating layer (3) contains system fire-resistant insulation layer (5), filling layer (4) are in the gap department of many insulation core transposition, it has metal flame retardant coating (6) to contain fire-resistant insulation layer (5) outside parcel, the outside parcel of metal flame retardant coating (6) has oversheath (7).
2. The fire-resistant control cable for fire fighting system resistant to mechanical shock and water spray according to claim 1, characterized in that the conductor (1) is a single solid round copper single wire or a conductor formed by stranding a plurality of fine round copper wires.
3. The fire-resistant control cable for fire fighting system with mechanical shock and water spray resistance according to claim 1, wherein the split-phase fire-resistant insulating layer (2) is formed by lapping a synthetic mica tape on the surface of the conductor (1); the lapping whiskers are flat and compact, and the lapping and covering rate is 15% -20%; the number of layers was 3.
4. The fire-resistant control cable for fire-fighting system with mechanical shock and water spray resistance according to claim 1, characterized in that the insulation layer (3) is formed by extruding a layer of plastic insulation material on the surface of the split-phase fire-resistant insulation layer (2), wherein the insulation material can be cross-linked polyethylene, polyethylene or polyolefin material, and the extrusion thickness is 0.6-1.0 mm.
5. The fire-resistant control cable with mechanical shock resistance and water spray for the fire fighting system as recited in claim 1, wherein the filling layer (4) is a high temperature fire-resistant filling rope tightly filled in the twisted gaps of the plurality of insulated wire cores to ensure that the plurality of insulated wire cores are twisted to form a round cable core.
6. The fire-resistant control cable for the fire fighting system with the mechanical impact resistance and the water spray resistance as recited in claim 1, wherein the wrapped fire-resistant insulating layer (5) is formed by lapping a synthetic mica tape on the surface of the insulating layer (3) in an overlapping manner, and the lapping rate of the lapping is 15-20%; the number of layers was 1.
7. The fire-resistant control cable for the fire fighting system with mechanical shock resistance and water spray resistance according to claim 1, wherein the metal fire-resistant layer (6) is wrapped on the surface of the fire-resistant insulating layer (5) in a single-layer overlapping manner by adopting a soft copper strip, and the wrapping and covering rate is 15-20%.
8. The fire-resistant control cable for the fire fighting system with the mechanical impact resistance and the water spray resistance according to claim 1, wherein the outer sheath (7) is formed by extruding a high-flame-retardant low-smoke halogen-free flame-retardant polyolefin sheath material on the surface of the metal fire-retardant layer (6) to achieve an extrusion thickness of 1.2-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062657.5U CN216719575U (en) | 2021-12-08 | 2021-12-08 | Fire-resistant control cable resistant to mechanical impact and water spraying and used for fire-fighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062657.5U CN216719575U (en) | 2021-12-08 | 2021-12-08 | Fire-resistant control cable resistant to mechanical impact and water spraying and used for fire-fighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216719575U true CN216719575U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123062657.5U Active CN216719575U (en) | 2021-12-08 | 2021-12-08 | Fire-resistant control cable resistant to mechanical impact and water spraying and used for fire-fighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216719575U (en) |
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2021
- 2021-12-08 CN CN202123062657.5U patent/CN216719575U/en active Active
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