CN218782825U - Insulated cable with flame retardant function - Google Patents
Insulated cable with flame retardant function Download PDFInfo
- Publication number
- CN218782825U CN218782825U CN202223103439.6U CN202223103439U CN218782825U CN 218782825 U CN218782825 U CN 218782825U CN 202223103439 U CN202223103439 U CN 202223103439U CN 218782825 U CN218782825 U CN 218782825U
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- CN
- China
- Prior art keywords
- cable
- fire
- flame retardant
- retardant
- layer
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- 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.)
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- 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 group 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 42
- 239000003063 flame retardant Substances 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 46
- 239000000779 smoke Substances 0.000 claims abstract description 40
- 229920000098 polyolefin Polymers 0.000 claims abstract description 25
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 22
- 150000002367 halogens Chemical class 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 9
- 229910052618 mica group Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Images
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
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- Insulated Conductors (AREA)
Abstract
The utility model discloses an insulated cable with fire-retardant function, including the outer protective layer, the internally mounted of outer protective layer has the pyrocondensation structure, and the internally mounted of pyrocondensation structure has the cable shielding layer, is fixed with the equidistant wall of three groups on the inner wall of cable shielding layer, and it has the fire-retardant polyolefin of low smoke and zero halogen to fill between the adjacent wall through separating the oxygen layer stopping, and the fire-retardant sinle silk main part of three groups of internally mounted of the fire-retardant polyolefin of low smoke and zero halogen through separating the oxygen layer stopping. The utility model discloses carry out three flame retardant treatments to the cable, effectively improve the high temperature resistant of cable, fire resistance, strengthen the operation security of cable to improve the structural strength and the insulation shielding performance of cable.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be an insulated cable with fire-retardant function.
Background
The basic structure of the power cable consists of four parts, namely a wire core (conductor), an insulating layer, a shielding layer and a protective layer, wherein the conductive wire core is used for transmitting electric energy; the insulating layer ensures that electric energy is transmitted along the wire core, and the wire core is electrically isolated from the outside; the protective layer plays the protection sealing effect, makes the insulating layer not soaked by moisture, does not receive external damage, keeps insulating properties, but current insulating power cable adds a flame retardant coating between conductor and insulating layer usually, leads to the cable to catch fire and the flame retardant coating when appearing damaged when other external factors, is difficult to guarantee that inside sinle silk does not receive the influence under high temperature state, has reduced the job stabilization nature of cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an insulated cable with fire-retardant function to it is difficult to guarantee its inside sinle silk job stabilization nature's problem to solve the flame retardant coating among the above-mentioned background art among the insulated cable of proposing.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an insulated cable with fire-retardant function, includes the outer protective layer, the internally mounted of outer protective layer has pyrocondensation structure, the internally mounted of pyrocondensation structure has cable shielding layer, be fixed with the equidistant wall of three groups on cable shielding layer's the inner wall, it is adjacent it has the fire-retardant polyolefin of low smoke and zero halogen to fill between the wall through separating the oxygen layer stopping, the fire-retardant sinle silk main part of three groups of internally mounted of fire-retardant polyolefin of low smoke and zero halogen through separating the oxygen layer stopping.
Preferably, the outer protective layer comprises an outer sheath, a flat steel band armor and an inner woven mesh pipe, the flat steel band armor is installed on the inner wall of the outer sheath, the inner woven mesh pipe is installed on the inner wall of the flat steel band armor, the outer peripheral face of the heat-shrinkable structure is wrapped by the inner woven mesh pipe, and the outer sheath is made of a modified polypropylene insulating material.
Preferably, the thermal shrinkage structure is thermal shrinkage cloth which is woven by halogen-free environment-friendly polyester fibers and polyolefin monofilaments and shrinks after being heated.
Preferably, the cable shielding layer is formed by wrapping a semi-conductive material and a copper strip or a copper wire.
Preferably, the partition is made of a fluoroplastic insulating silicone rubber material.
Preferably, fire-retardant sinle silk main part includes flame retardant coating, low smoke and zero halogen inner sheath and core conductor, low smoke and zero halogen inner sheath is installed in the fire-retardant polyene of low smoke and zero halogen at a distance from the oxygen layer stopping material, the flame retardant coating winding is at the outer peripheral face of low smoke and zero halogen inner sheath, core conductor installs the inside at low smoke and zero halogen inner sheath.
Preferably, the fire-resistant layer is made of fire-resistant mica tapes.
Compared with the prior art, the beneficial effects of the utility model are that: this insulated cable with fire-retardant function is through being provided with the structure of mutually supporting of thermal contraction cloth and low smoke and zero halogen fire-retardant polyolefin through oxygen barrier filler etc. when this cable high temperature appears or local combustion, thermal contraction cloth can contract fast after the heat is met, make thermal contraction cloth closely laminate the peripheral surface at the cable shield, utilize thermal contraction cloth to tighten up cable shield and inside low smoke and zero halogen fire-retardant polyolefin through oxygen barrier filler, thereby reduce the amount of space between the fire-retardant polyolefin of low smoke and zero halogen through oxygen barrier filler, and then realize preliminary fire-retardant function, at the outer peripheral face winding flame retardant coating of low smoke and zero halogen inner sheath, the flame retardant coating is fire-resistant mica tape, fire-resistant mica tape can be able to bear or endure long-time burning, even apply the high polymer of flame department and burnt, also can guarantee the normal power supply of sinle silk conductor, the operation, this cable prevents through three times and fires the processing, effectively improve the high temperature resistant of cable, fire resistance, the operation security of reinforcing cable.
Drawings
Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic perspective view of the present invention;
fig. 4 is a schematic side view of the inner woven mesh tube of the present invention;
FIG. 5 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
in the figure: 1. an outer protective layer; 101. an outer sheath; 102. armoring with a flat steel belt; 103. internally weaving a net pipe; 2. thermal shrinking cloth; 3. a cable shielding layer; 4. separating; 401. the low-smoke halogen-free flame-retardant polyolefin is filled with an oxygen isolation layer; 5. a flame retardant core body; 501. a refractory layer; 502. a low-smoke halogen-free inner sheath; 503. and a core conductor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: an insulated cable with a flame retardant function comprises an outer protective layer 1, wherein a heat-shrinkable structure is arranged inside the outer protective layer 1, the heat-shrinkable structure is a heat-shrinkable cloth 2, and the heat-shrinkable cloth 2 is woven by halogen-free environment-friendly polyester fibers and polyolefin monofilaments and shrinks after being heated;
the cable shielding layer 3 is arranged in the heat-shrinkable structure, the cable shielding layer 3 is formed by wrapping a semi-conductive material and a copper strip or a copper wire, and when the temperature of the cable is too high or the cable is locally burnt, the heat-shrinkable cloth 2 can be quickly shrunk after being heated, so that the heat-shrinkable cloth 2 is tightly attached to the peripheral surface of the cable shielding layer 3;
the cable shielding layer 3 is formed by wrapping a semi-conductive material with low resistivity and thin thickness and a copper strip or a copper wire, so that the cable has excellent insulating and shielding properties;
three groups of partitions 4 with equal intervals are fixed on the inner wall of the cable shielding layer 3, the partitions 4 are made of fluoroplastic insulating silicon rubber materials, low-smoke halogen-free flame-retardant polyolefin oxygen-isolating layer filling materials 401 are filled between the adjacent partitions 4, three groups of flame-retardant wire core main bodies 5 are installed in the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating layer filling materials 401, and the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating layer filling materials 401 have the characteristics of no halogen, no combustion and low smoke generation amount and can avoid ignition points in the cable;
the cable shielding layer 3 and the low-smoke halogen-free flame-retardant polyolefin in the cable are tightened by the thermal shrinkable cloth 2 through the oxygen barrier layer filler 401, so that the amount of gaps between the low-smoke halogen-free flame-retardant polyolefin and the oxygen barrier layer filler 401 is reduced, the higher the temperature of the cable is, the lower the gap between the low-smoke halogen-free flame-retardant polyolefin and the oxygen barrier layer filler 401 is, the ignition point in the cable is reduced, and the function of primary flame retardance is realized;
the flame-retardant wire core main body 5 comprises a flame-retardant layer 501, a low-smoke halogen-free inner sheath 502 and a wire core conductor 503, the low-smoke halogen-free inner sheath 502 is arranged in the low-smoke halogen-free flame-retardant polyolefin epoxy insulation layer filler 401, the flame-retardant layer 501 is wound on the outer peripheral surface of the low-smoke halogen-free inner sheath 502, the wire core conductor 503 is arranged inside the low-smoke halogen-free inner sheath 502, and the flame-retardant layer 501 is made of a flame-retardant mica tape;
the outer peripheral surface of the low-smoke halogen-free inner sheath 502 is wound with the fire-resistant layer 501, the fire-resistant layer 501 is a fire-resistant mica tape, the fire-resistant mica tape can resist long-time combustion, and even if high polymers at the position where flame is applied are burnt, normal power supply and operation of the core conductor 503 can be guaranteed;
the outer protection layer 1 comprises an outer sheath 101, a flat steel strip armor 102 and an inner woven mesh pipe 103, the flat steel strip armor 102 is installed on the inner wall of the outer sheath 101, the inner woven mesh pipe 103 is installed on the inner wall of the flat steel strip armor 102, the inner woven mesh pipe 103 is wrapped on the outer peripheral surface of a heat-shrinkable structure, and the outer sheath 101 is made of a modified polypropylene insulating material;
the outer protective layer 1 is formed by sequentially wrapping an outer sheath 101, a flat steel band armor 102 and an inner woven mesh pipe 103, and the structural strength and the self-protection performance of the cable are improved.
When the cable is used, firstly, when the cable is over-high in temperature or partially burns, the thermal shrinkage cloth 2 can be quickly shrunk after being heated, so that the thermal shrinkage cloth 2 is tightly attached to the peripheral surface of the cable shielding layer 3, the thermal shrinkage cloth 2 is utilized to tighten the cable shielding layer 3 and the internal low-smoke halogen-free flame-retardant polyolefin epoxy interlayer filler 401, and therefore the amount of gaps between the low-smoke halogen-free flame-retardant polyolefin epoxy interlayer filler 401 is reduced, the cable temperature is higher, the gaps between the low-smoke halogen-free flame-retardant polyolefin epoxy interlayer filler 401 materials are lower, the ignition point inside the cable is reduced, the primary flame-retardant function is realized, the low-smoke halogen-free flame-retardant polyolefin epoxy interlayer filler 401 has the characteristics of no halogen, no combustion and low smoke quantity, the ignition point inside the cable can be avoided, the flame-retardant mica tape can be burnt for a long time, even if a high polymer at the flame is burnt, the normal power supply and the operation of the conductor can be ensured, the cable is treated by the flame-retardant mica tape, and the high-temperature resistance of the cable can be effectively enhanced.
Claims (7)
1. An insulated cable with flame retardant function which characterized in that: including outer protective layer (1), the internally mounted of outer protective layer (1) has pyrocondensation structure, the internally mounted of pyrocondensation structure has cable screen (3), be fixed with three equidistant wall (4) of group on the inner wall of cable screen (3), it is adjacent cut off and fill between (4) and have the fire-retardant polyolefin of low smoke and zero halogen through separating oxygen layer filler (401), the fire-retardant polyolefin of low smoke and zero halogen has fire-retardant sinle silk main part (5) of three groups through the internally mounted that separates oxygen layer filler (401).
2. The insulated cable with flame retardant function according to claim 1, wherein: the outer protection layer (1) comprises an outer sheath (101), a flat steel band armor (102) and an inner woven mesh pipe (103), the flat steel band armor (102) is installed on the inner wall of the outer sheath (101), the inner woven mesh pipe (103) is installed on the inner wall of the flat steel band armor (102), the inner woven mesh pipe (103) is wrapped on the outer peripheral surface of the heat-shrinkable structure, and the outer sheath (101) is made of a modified polypropylene insulating material.
3. The insulated cable with flame retardant function according to claim 2, wherein: the thermal shrinkage structure is thermal shrinkage cloth (2), the thermal shrinkage cloth (2) is formed by weaving halogen-free environment-friendly polyester fibers and polyolefin monofilaments, and the thermal shrinkage cloth shrinks after being heated.
4. The insulated cable with flame retardant function according to claim 1, wherein: the cable shielding layer (3) is formed by wrapping a semi-conductive material and a copper strip or a copper wire.
5. The insulated cable with flame retardant function according to claim 1, wherein: the partition (4) is made of a fluoroplastic insulating silicon rubber material.
6. The insulated cable with flame retardant function according to claim 1, wherein: fire-retardant sinle silk main part (5) are including flame retardant coating (501), low smoke and zero halogen inner sheath (502) and sinle silk conductor (503), low smoke and zero halogen inner sheath (502) are installed in low smoke and zero halogen fire-retardant polyolefin through separating oxygen layer filler (401), flame retardant coating (501) winding is at the outer peripheral face of low smoke and zero halogen inner sheath (502), the inside at low smoke and zero halogen inner sheath (502) is installed in sinle silk conductor (503).
7. The insulated cable with flame retardant function according to claim 6, wherein: the fire-resistant layer (501) is made of fire-resistant mica tapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223103439.6U CN218782825U (en) | 2022-11-22 | 2022-11-22 | Insulated cable with flame retardant function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223103439.6U CN218782825U (en) | 2022-11-22 | 2022-11-22 | Insulated cable with flame retardant function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218782825U true CN218782825U (en) | 2023-03-31 |
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ID=85716236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223103439.6U Active CN218782825U (en) | 2022-11-22 | 2022-11-22 | Insulated cable with flame retardant function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218782825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118675805A (en) * | 2024-06-11 | 2024-09-20 | 上海沪安电缆(无锡)有限公司 | High fire-retardant fire-resistant cable |
-
2022
- 2022-11-22 CN CN202223103439.6U patent/CN218782825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118675805A (en) * | 2024-06-11 | 2024-09-20 | 上海沪安电缆(无锡)有限公司 | High fire-retardant fire-resistant cable |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |