CN215868751U - High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable - Google Patents
High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable Download PDFInfo
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- CN215868751U CN215868751U CN202120774784.9U CN202120774784U CN215868751U CN 215868751 U CN215868751 U CN 215868751U CN 202120774784 U CN202120774784 U CN 202120774784U CN 215868751 U CN215868751 U CN 215868751U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 31
- 230000007797 corrosion Effects 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 15
- 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 11
- 239000004020 conductor Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 7
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000004132 cross linking Methods 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 4
- 238000001354 calcination Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 37
- 239000003208 petroleum Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a high-flame-retardant, high-temperature-resistant, corrosion-resistant and wear-resistant cable, which relates to the technical field of power cables.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a high-flame-retardant, high-temperature-resistant, corrosion-resistant and wear-resistant cable.
Background
At present, the polyvinyl chloride insulated wire is mostly used as an indoor wiring wire in the building industry of China. The polyvinyl chloride insulated wire has the advantages of light weight, low price, good electrical insulation, good flame retardance and the like, thereby being popular with consumers. However, the polyvinyl chloride insulated wire has a safety hazard in the use process. Especially, in case of fire accident, the electric wire generates a great amount of smoke and halogen acid gas due to burning, and the smoke and gas seriously affect the fire fighting efficiency of fire fighters, even endanger their life safety, and cause so-called "secondary disaster", and besides, the corrosive halogen acid gas corrodes furniture and household appliances. Nowadays, people's awareness of environmental protection is increasing, and related regulations in China, polyvinyl chloride insulated wires are gradually being extruded, and replaced by halogen-free environmentally-friendly wires with flame retardant properties. The environment-friendly electric wire has the advantages of prolonging the service life of the electric wire, effectively preventing the electric wire from being aged in advance and reducing the occurrence probability of fire.
The outer sheath of the existing power cable is solid, the inside of the power cable can be extruded due to external force factors such as bending, impact or treading in the using process, the damage is easy to cause, more raw materials are needed for the solid, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is that the outer sheaths of the existing power cables are solid, the inner parts of the power cables are extruded due to external force factors such as bending, impact or treading in the using process, the damage is easy to cause, the solid outer sheaths need more raw materials, and the production cost is increased.
In order to solve the technical problems, the utility model provides a high-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable which comprises three cable cores which are twisted with each other, wherein a cabling wrapping layer is wrapped outside the cable cores, a cabling filling layer is filled between the cable cores and the cabling wrapping layer, and an outer sheath is wrapped outside the cabling wrapping layer; the cable core comprises a wire core, and a fire-resistant layer and an insulating layer are sequentially coated outside the wire core; a plurality of groups of buffer holes are formed in the outer sheath at intervals along the circumferential direction of the outer sheath, and a plurality of buffer holes are formed in each group of buffer holes at intervals along the length direction of the outer sheath.
The technical scheme of the utility model is further defined as follows: two side surfaces of the buffer hole along the length direction of the outer sheath are arc-shaped surfaces, and the arc-shaped surfaces protrude outwards.
Furthermore, two side faces of the buffer hole in the circumferential direction of the outer sheath are arc-shaped faces, and the arc-shaped faces protrude outwards.
In the high-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable, the distance between the adjacent buffer holes in the same group is set to be equal to the length of the buffer holes along the length direction of the outer sheath.
The distance between the buffer holes of different adjacent groups of the high-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable is equal to the length of the buffer holes in the circumferential direction of the outer sheath.
The high flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable is characterized in that 4 groups of buffer holes are arranged at intervals along the circumferential direction of the outer sheath.
The high-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable is characterized in that a wire core is arranged into six types of tin-plated soft copper conductors, a flame-retardant layer is arranged into two layers of calcined mica tapes, an insulating layer is arranged into irradiation ethylene propylene rubber, a cabling filling layer is arranged into a high-flame-retardant porous filling rope, a cabling wrapping layer is arranged into a low-smoke halogen-free high-flame-retardant wrapping tape, and an outer sheath is arranged into irradiation cross-linked CPE high-flame-retardant material.
The utility model has the beneficial effects that:
(1) according to the utility model, the six types of tin-plated soft copper conductors are arranged, so that the whole wire core has extremely high softness, and meanwhile, the conductor of the whole cable is prevented from being oxidized in the petroleum pollution environment, and the service life is longer; the two layers of calcined mica tapes are arranged, so that the temperature resistance grade of the fire-resistant layer is up to 1050 ℃, and the cable conductor can be ensured to continuously transmit current for more than 15 minutes when a petroleum fire disaster happens; the irradiation of the ethylene propylene rubber ensures that the elongation at break of the whole insulating layer is kept at 150%, and the insulating layer has extremely high flame retardant property, so that the insulating layer is not melted or scalded due to high temperature when a petroleum fire disaster happens, and can be quickly self-extinguished, and the conductor is protected as far as possible while the transmission current of a wire core is not influenced; the radiation crosslinking CPE high flame retardant material is arranged, so that the line integrity of the cable can be ensured after an oil fire occurs, the cable can be quickly encrusted, and the insulating layer and the cable core are protected from normal operation for 15 minutes; therefore, the whole power cable is more green and environment-friendly, higher in safety and longer in service life due to the arrangement of all the layers;
(2) according to the utility model, the buffer holes are arranged, so that when the outer sheath is subjected to external force, the hollow structure of the buffer holes can provide a certain space to deform the outer sheath, thereby not directly extruding linear and other functional layers in the cable, effectively playing roles of buffering and protecting, and simultaneously, the arrangement of the buffer holes also enables the materials required by the production of the outer sheath to be less, thereby reducing the manufacturing cost of the whole power cable;
(3) according to the utility model, the side surface of the buffer hole is set to be the arc-shaped surface, so that the buffer performance of the whole buffer hole is better, the structure of the buffer hole is better in elasticity, the original state can be quickly read after the buffer hole is subjected to external force, the normal use of the whole power cable is not influenced, the arrangement of the positions of the buffer holes ensures that all parts of the whole power cable can be effectively protected, and the integral strength of the power cable is not influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the distribution of buffer holes in the present invention.
Wherein: 1. a cable core; 11. a wire core; 12. a refractory layer; 13. an insulating layer; 2. a cabling lapping layer; 3. a cabling filling layer; 4. an outer sheath; 5. and a buffer hole.
Detailed Description
The structure of the high-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable provided by the embodiment is as shown in fig. 1 to fig. 2, and includes three cable cores 1 twisted mutually, each cable core 1 includes a wire core 11, the wire core 11 is wrapped with a fire-resistant layer 12 and an insulating layer 13 in sequence, the wire core 11 is set to six types of tin-plated soft copper conductors, the fire-resistant layer 12 is set to two layers of calcined mica tapes, and the insulating layer 13 is set to irradiation ethylene propylene rubber.
The outer package of cable core 1 has the stranding around covering 2, and cable core 1 and stranding are packed around having the stranding filling layer 3 around having filled between covering 2, and the stranding has oversheath 4 around the outside cladding of covering 2, and the stranding filling layer 3 sets up to high fire-retardant porous packing rope, and the stranding sets up to low smoke and zero halogen high fire-retardant band around covering 2, and oversheath 4 sets up to the high fire-retardant material of irradiation cross-linking CPE.
4 groups of buffer holes 5 are arranged in the outer sheath 4 at equal intervals along the circumferential direction of the outer sheath, and the distance between adjacent buffer holes 5 in the same group is equal to the length of the buffer holes 5 along the length direction of the outer sheath 4; a plurality of buffer holes 5 are arranged at equal intervals along the length direction of the outer sheath 4, and the distance between every two adjacent buffer holes 5 is equal to the length of the buffer holes 5 along the circumferential direction of the outer sheath 4; the two side faces of the buffer hole 5 in the length direction of the outer sheath 4 are arc-shaped faces, the arc-shaped faces protrude outwards, the two side faces of the buffer hole 5 in the circumferential direction of the outer sheath 4 are arc-shaped faces, and the arc-shaped faces protrude outwards.
The arrangement of the six types of tin-plated soft copper conductors ensures that the whole wire core 11 has extremely high softness, and simultaneously ensures that the conductor of the whole cable is not oxidized in the petroleum pollution environment and the service life is longer; the two layers of calcined mica tapes are arranged, so that the temperature resistance grade of the fire-resistant layer 12 is up to 1050 ℃, and the cable conductor can be ensured to continuously transmit current for more than 15 minutes when a petroleum fire disaster happens; the irradiation of the ethylene propylene rubber ensures that the elongation at break of the whole insulating layer 13 is kept at 150%, and the insulating layer has extremely high flame retardant property, so that the insulation is not melted or scalded due to high temperature when a petroleum fire disaster happens, the insulation can be rapidly self-extinguished, the conductor is protected as far as possible while the current transmission of the wire core 11 is not influenced; the irradiation crosslinking CPE high flame retardant material is arranged, so that the line integrity of the cable can be ensured after an oil fire occurs, the cable can be quickly encrusted, and the insulating layer 13 and the wire core 11 are protected to normally run for 15 minutes; therefore, through the arrangement of all the layers, the whole power cable is more green and environment-friendly, higher in safety and longer in service life
The cable insulation adopts irradiation ethylene propylene rubber insulation with the temperature resistance level of 150 ℃, the ethylene propylene rubber insulation with the general hardness of about 80 lx-A has the elongation at break of 150 percent and extremely high flame retardant property, and can be automatically extinguished within 11 seconds after being extinguished after inclined combustion at 45 ℃ for 30S, so that when an oil fire happens, the insulation layer 13 is not melted or scalded due to high temperature, can be quickly and automatically extinguished, does not influence the current transmission of the wire core 11, and simultaneously protects the wire core 11 as much as possible;
the cable sheath is made of a petroleum-resistant, wear-resistant and high-flame-retardant high-temperature-resistant rubber sheath material, a 125 ℃ irradiation crosslinking CPE high-flame-retardant sheath material is selected, the product is excellent in heat resistance, the tensile strength before aging is 11.3Mpa, the elongation at break is 328%, after the cable sheath is subjected to 125 ℃ heat aging for 7 days, the change rate of the tensile strength after aging is 2%, and the change rate of the elongation at break after aging is-5%. After a petroleum fire disaster occurs, the integrity of the cable can be guaranteed, the cable can be quickly encrusted, and the protective insulating layer 13 and the cable core 11 normally run for 15 minutes.
The arrangement of the buffer holes 5 enables the outer sheath 4 to be under external force, the hollow structure of the buffer holes 5 can provide a certain space to enable the outer sheath 4 to deform, linear and other functional layers inside the cable can not be directly extruded, the effects of buffering and protection are effectively achieved, meanwhile, the arrangement of the buffer holes 5 enables the outer sheath 4 to be made of fewer materials, and therefore the manufacturing cost of the whole power cable is reduced.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a high fire-retardant high temperature resistant corruption wear-resisting cable which characterized in that: the cable comprises three cable cores (1) which are twisted with each other, wherein a cabling wrapping layer (2) is wrapped outside the cable cores (1), a cabling filling layer (3) is filled between the cable cores (1) and the cabling wrapping layer (2), and an outer sheath (4) is wrapped outside the cabling wrapping layer (2); the cable core (1) comprises a cable core (11), and a fire-resistant layer (12) and an insulating layer (13) are sequentially coated outside the cable core (11); a plurality of groups of buffer holes (5) are formed in the outer sheath (4) at intervals along the circumferential direction of the outer sheath, and a plurality of buffer holes (5) are formed in each group at intervals along the length direction of the outer sheath (4); sinle silk (11) set up to six types of tin-plated soft copper conductors, and flame retardant coating (12) set up to two-layer calcination mica tape, and insulating layer (13) set up to irradiation ethylene propylene rubber, and stranding filling layer (3) set up to high fire-retardant porous packing rope, and the stranding sets up to low smoke and zero halogen high fire-retardant band around covering (2), and oversheath (4) set up to irradiation cross-linking CPE high flame retardant material.
2. The cable of claim 1, wherein the cable has a high flame retardance, high temperature resistance, corrosion resistance and abrasion resistance: the two side faces of the buffer hole (5) along the length direction of the outer sheath (4) are arc-shaped faces, and the arc-shaped faces protrude outwards.
3. The cable of claim 2, wherein the cable has a high flame retardance, high temperature resistance, corrosion resistance and abrasion resistance: two side faces of the buffer hole (5) in the circumferential direction of the outer sheath (4) are arc-shaped faces, and the arc-shaped faces protrude outwards.
4. The cable of claim 1, wherein the cable has a high flame retardance, high temperature resistance, corrosion resistance and abrasion resistance: the distance between the adjacent buffer holes (5) in the same group is set to be equal to the length of the buffer holes (5) along the length direction of the outer sheath (4).
5. The cable of claim 4, wherein the cable has a flame-retardant property, a high temperature resistance, a corrosion resistance and a wear resistance: the distance between the adjacent different groups of buffer holes (5) is set to be equal to the length of the buffer holes (5) along the circumferential direction of the outer sheath (4).
6. The cable of claim 1, wherein the cable has a high flame retardance, high temperature resistance, corrosion resistance and abrasion resistance: the buffer holes (5) are arranged in 4 groups at intervals along the circumferential direction of the outer sheath (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120774784.9U CN215868751U (en) | 2021-04-15 | 2021-04-15 | High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120774784.9U CN215868751U (en) | 2021-04-15 | 2021-04-15 | High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable |
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| Publication Number | Publication Date |
|---|---|
| CN215868751U true CN215868751U (en) | 2022-02-18 |
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| CN202120774784.9U Active CN215868751U (en) | 2021-04-15 | 2021-04-15 | High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012850A (en) * | 2021-04-15 | 2021-06-22 | 远程电缆股份有限公司 | High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable and preparation method thereof |
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2021
- 2021-04-15 CN CN202120774784.9U patent/CN215868751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012850A (en) * | 2021-04-15 | 2021-06-22 | 远程电缆股份有限公司 | High-flame-retardant high-temperature-resistant corrosion-resistant wear-resistant cable and preparation method thereof |
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