CN113936848B - Fireproof B1-level cable - Google Patents
Fireproof B1-level cable Download PDFInfo
- Publication number
- CN113936848B CN113936848B CN202111156614.5A CN202111156614A CN113936848B CN 113936848 B CN113936848 B CN 113936848B CN 202111156614 A CN202111156614 A CN 202111156614A CN 113936848 B CN113936848 B CN 113936848B
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- China
- Prior art keywords
- cable
- armor
- cable core
- sheath
- class
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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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Links
- 230000002265 prevention Effects 0.000 claims abstract description 5
- 238000005253 cladding Methods 0.000 claims 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 14
- 239000003063 flame retardant Substances 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 10
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 14
- 239000002689 soil Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 206010012239 Delusion Diseases 0.000 description 2
- 241000256602 Isoptera Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 231100000868 delusion Toxicity 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The application relates to a fire prevention B1 level cable, it includes cable core, sheath and armor, the cable core is equipped with a plurality of, the sheath parcel is in a plurality of outside the cable core, the spout has been seted up to the armor inner wall, the sheath is equipped with a plurality of sliders outward, the slider is located in the spout, the spout includes straightway and a plurality of arc section, straightway is followed the armor axial setting, the arc section is followed armor circumference sets up, and is a plurality of the arc section is followed the length direction interval evenly distributed of straightway. The armor sleeve is hard in texture, the cable core can be prevented from being sheared, when a thief shears two parts of the cable, and the cable core is pulled out from one end, the sliding block on the sheath is clamped in the arc section of the sliding groove, so that the cable core is difficult to pull out, and the problem that the cable is easy to steal is solved.
Description
Technical Field
The application relates to the field of power cables, in particular to a fireproof B1-level cable.
Background
In power transportation, a cable is often used for remote power transmission. Cables are typically made of one or more mutually insulated conductors and an outer insulating protective layer, wires that transfer power or information from one location to another.
In the related art, the cable is laid in two modes, namely overhead and underground. Underground buried cables are typically buried below the ground surface by means of soil.
In view of the above-mentioned related art, the inventors consider that the soil of the surface layer for urban landscaping is soft, and that the cable buried in the ground is easily stolen because it is easily excavated, and that the cable is mostly cut off from two places and then pulled out from one end.
Disclosure of Invention
To reduce the problem of cables being easily stolen, the present application provides a fire-resistant B1 class cable.
The application provides a fire prevention B1 level cable adopts following technical scheme:
the utility model provides a fire prevention B1 level cable, includes cable core, sheath and armour cover, the cable core is equipped with a plurality ofly, the sheath parcel is in a plurality of outside the cable core, the spout has been seted up to armour cover inner wall, be equipped with a plurality of sliders outward the sheath, the slider is located in the spout, the spout includes straightway and a plurality of arc line section, the straightway is followed the armour cover axial setting, the arc line section is followed armour cover circumference sets up, a plurality of the arc line section is followed the length direction interval evenly distributed of straightway.
Through adopting above-mentioned technical scheme, when laying cable, insert cable core one end in the armor for slider on the sheath aligns with the straightway of spout in the armor, then in the one end of haulage cable core made the cable core wear to locate the armor completely, the slider slides along the straightway of spout in the slip process, when the cable core wear to locate the armor completely in, the slider is located the intersection department of straightway and pitch arc section of spout, rotates the armor this moment, makes the slider be located the pitch arc section of spout, then buries armor and cable under the earth surface, accomplish cable laying promptly. The armor sleeve is hard in texture, can prevent that the cable core from being cut, when the thief cuts two places of the cable, delusions take out the cable core from one end, the slider joint of sheath is in the arc section of spout to make the cable core be difficult to be taken out, thereby reduce the easy problem of stealing of cable.
Optionally, the armor in the arc section is kept away from the one end of straightway has run through and has seted up the through-hole, elastic connection has the stopper on the slider, the stopper is kept away from the one end of slider extends to outside the through-hole.
Through adopting above-mentioned technical scheme, when laying cable, the stopper on the slider passes the through-hole and extends to outside the armor, and the armor buries behind the earth's surface, in the stopper inserted soil, the stopper can increase the pulling force between armor and the soil to prevent that the thief from taking out cable core together with the armor, and then reduce the easy stolen problem of cable.
Optionally, the armor is equipped with a plurality ofly, and a plurality of armors are followed the length direction interval evenly distributed of cable core.
Through adopting above-mentioned technical scheme, when laying the cable, every one section distance cover establishes one section armor on the cable, then rotates the armor and make the stopper extend to outside the through-hole, then buries the armor below the earth's surface, and the armor of so setting need not rotate the cable core in the work progress, can reduce the required material cost of armor when reducing the construction degree of difficulty.
Optionally, the armor is equipped with the antislip strip in the straightway, antislip strip and armor fixed connection.
Through adopting above-mentioned technical scheme, set up the straight-line segment of antislip strip to the spout and shutoff, prevent that the slider from sliding to in the straight-line segment of spout to reinforcing cable core's connection stability in the armour cover, and then avoid the thief to take out the cable core in the armour cover, effectively strengthened the theftproof effect of cable.
Optionally, the stopper is kept away from the guide face that the slope set up has been seted up to the one end of slider, the guide face is used for guiding the cable core wears to locate in the armor.
Through adopting above-mentioned technical scheme, during the installation armour cover, the guide surface can make the smooth and easy slip of cable core to in the armour cover to reduce because of the stopper stops the problem that leads to the cable core to be difficult to wear to locate in the armour cover, can reduce the construction degree of difficulty of installation armour cover.
Optionally, a plurality of gag levers of armor external fixation.
Through adopting above-mentioned technical scheme, after the armor buries below the earth's surface, the gag lever post can insert in the soil, and the gag lever post can increase the pulling force between armor and the soil to prevent that the thief from taking out the cable core together with the armor, when the cable was stolen, the thief needed to dig out all armor below the earth's surface, very big increase the theft degree of difficulty, thereby further reduced the easy problem of being stolen of cable.
Optionally, the cable core includes conductor, flame retardant coating and insulating layer, the flame retardant coating cladding in outside the conductor, the insulating layer cladding in outside the flame retardant coating, be equipped with the cladding in the sheath, the cladding is in a plurality of outside the cable core, the cladding with be equipped with a plurality of filler strips between the cable core.
Through adopting above-mentioned technical scheme, the cable core and the sheath that so set up make cable compact structure stable to have better tensile strength and fire resistance, reduce the possibility that the thief's theft in-process is easy with cable damage, thereby can effectively prolong the life of cable and use.
Optionally, the fireproof layer is a mica tape.
Through adopting above-mentioned technical scheme, the mica tape has good high temperature resistance and resistant burning performance, when meeting open flame burning, the mica tape can effectively prevent the destruction of flame to the conductor, and the mica tape can not volatilize harmful smog simultaneously in the combustion process to make the cable have good fire resistance and environmental protection.
Optionally, the sheath and the insulating layer are halogen-free low-smoke flame-retardant polyolefin materials.
By adopting the technical scheme, the halogen-free low-smoke flame-retardant polyolefin material has better flame retardance, heat resistance and termite resistance, can effectively enhance the fire resistance of the cable, and simultaneously reduces the possibility that termites damage the cable, thereby prolonging the service life of the cable. The halogen-free low-smoke flame-retardant polyolefin material has low fuming performance, and does not generate harmful smoke during combustion, so that the whole cable has good flame retardance and environmental protection performance.
Optionally, the cladding is a halogen-free ceramic flame-retardant tape.
By adopting the technical scheme, the halogen-free ceramic flame-retardant belt can effectively inhibit flame from spreading to the inside of the cable core, so that the cable has good fireproof performance.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the fireproof B1-level cable comprises cable cores, a sheath and an armor sleeve, wherein the sheath is wrapped outside the cable cores, the sheath is provided with a sliding block connected with the inner wall of the armor sleeve, the armor sleeve is hard in texture and can prevent the cable cores from being sheared, when a thief shears the cable at two positions, delusions take out the cable cores from one end, the sliding block of the sheath is clamped in an arc section of a chute, so that the cable cores are difficult to be pulled out, and the problem that the cable is easy to be stolen is solved;
2. the sheath of the fireproof B1-level cable is provided with the sliding block, the sliding block is elastically connected with the limiting block which can extend out of the armor sleeve, the armor sleeve is buried below the ground surface, and the limiting block is inserted into the soil, so that the drawing force between the armor sleeve and the soil is increased, a thief is prevented from drawing out the cable core together with the armor sleeve, and the problem that the cable is easy to steal is solved;
3. the utility model provides a pair of a plurality of gag levers of fixedly connected with on armouring of fire prevention B1 level cable sheathes in, the gag lever post can increase the pulling force between armouring and the soil to prevent that the thief from taking out the cable core together with the armouring, when the cable is stolen, the thief needs to dig out all armouring from below the earth's surface, very big increase the theft degree of difficulty, thereby further reduce the easy problem of being stolen of cable.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of a cable core and jacket according to an embodiment of the present application;
fig. 3 is a schematic view of an exploded construction of an armor sleeve according to an embodiment of the present application;
fig. 4 is an exploded view of the slider and stopper according to the embodiment of the present application.
Reference numerals: 1. a cable core; 11. a conductor; 12. a fire-blocking layer; 13. an insulating layer; 2. a sheath; 21. a cladding layer; 22. filling strips; 23. a slide block; 231. a limiting hole; 232. a limiting block; 2321. a guide surface; 233. a spring; 3. an armor sleeve; 31. a limit rod; 32. a chute; 321. a straight line segment; 322. an arc segment; 323. an anti-slip strip; 324. and a through hole.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a fireproof B1-level cable. Referring to fig. 1, a fire-resistant B1 class cable includes a cable core 1, a jacket 2, and an armor sleeve 3.
Referring to fig. 1 and 2, the cable core 1 includes a conductor 11, a fireproof layer 12 and an insulating layer 13, the conductor 11 is formed by twisting a plurality of annealed soft copper wires, the fireproof layer 12 is coated outside the conductor 11, and the fireproof layer 12 is a mica tape; the insulating layer 13 is coated outside the fireproof layer 12, and the insulating layer 13 is made of halogen-free low-smoke flame-retardant polyolefin material. The number of the cable cores 1 is plural, and in this embodiment, two cable cores 1 are provided. The sheath 2 is made of halogen-free low-smoke flame-retardant polyolefin material, the inner wall of the sheath 2 is provided with a cladding 21, the cladding 21 is a halogen-free ceramic flame-retardant band, and the sheath 2 and the cladding 21 are wrapped outside the two cable cores 1. A plurality of filling strips 22 are arranged between the cladding 21 and the cable core 1, the filling strips 22 are made of halogen-free low-smoke flame-retardant polyolefin materials, and the filling strips 22 and the cable core 1 are distributed in a staggered mode at intervals.
Referring to fig. 1 and 3, the armor 3 is an iron-nickel alloy metal sleeve, the armor 3 is provided with a plurality of armor 3, the plurality of armor 3 are evenly distributed along the length direction interval of the cable core 1, four stop bars 31 are welded on the outer wall of the armor 3, and the axial direction of the stop bars 31 is perpendicular to the axial direction of the armor 3. The two limiting rods 31 are in a group, one end of the limiting rods 31, which is located at one end of the armor sleeve 3 along the length direction, of the one group of limiting rods 31 is opposite to the two limiting rods 31 located at one end of the armor sleeve 3.
Referring to fig. 1, 2 and 3, two rows of sliders 23 are integrally provided outside the sheath 2; the two rows of sliding blocks 23 are uniformly distributed along the circumferential direction of the sheath 2 at intervals, and the plurality of sliding blocks 23 of each row are uniformly distributed along the axial direction of the sheath 2 at intervals; two spouts 32 have been seted up to armoured cover 3 inner wall, and two spouts 32 are evenly distributed along the circumference interval of armoured cover 3 inner wall, and spout 32 includes straightway 321 and a plurality of arc section 322, and straightway 321 sets up along the axial of armoured cover 3, and arc section 322 sets up along the circumference of armoured cover 3.
Referring to fig. 1, 2 and 3, after the cable is laid, the sliding block 23 is located in the arc section 322 of the chute 32, the anti-slip strip 323 is embedded in the straight line section 321 of the chute 32, the anti-slip strip 323 is a rubber strip, the anti-slip strip 323 prevents the cable core 1 from rotating in the armor 3, when a thief cuts the cable at two places and attempts to withdraw the cable core 1 from one end, the sliding block 23 of the sheath 2 is clamped in the arc section 322 of the chute 32, so that the cable core 1 is difficult to withdraw, and the problem that the cable is easy to steal is reduced.
Referring to fig. 2, 3 and 4, a limiting hole 231 is formed in a side wall, far away from the sheath 2, of the sliding block 23, a limiting block 232 is connected in the limiting hole 231 in a sliding mode, a spring 233 is arranged in the limiting hole 231, one end of the spring 233 is welded with the bottom wall of the limiting hole 231, the other end of the spring 233 is welded with the limiting block 232, a guide surface 2321 which is obliquely arranged is formed in one end, far away from the sliding block 23, of the limiting block 232, and the guide surface 2321 is obliquely arranged along the axial direction of the cable core 1 towards the direction, close to the sheath 2. The armor 3 is provided with a through hole 324 at one end of the arc section 322 far away from the straight line section 321. After the cable is laid, the sliding block 23 is positioned in the arc section 322 of the sliding groove 32, one end of the limiting block 232, which is subjected to the elastic force of the spring 233, extends out of the through hole 324, and after the armor sleeve 3 is buried, the limiting block 232 is inserted into the soil, so that the drawing force between the armor sleeve 3 and the soil is increased, and a thief is prevented from drawing out the cable core 1 together with the armor sleeve 3.
The implementation principle of the fireproof B1-level cable provided by the embodiment of the application is as follows: when cabling, one end of the cable core 1 is inserted into the armor sleeve 3, so that the sliding block 23 on the sheath 2 is aligned with the straight line section 321 of the sliding groove 32 in the armor sleeve 3, then one end of the cable core 1 is pulled to enable the cable core 1 to slide in the armor sleeve 3, when the cable core 1 is pulled, the sliding block 23 outside the sheath 2 slides along the straight line section 321 of the sliding groove 32, when the sliding block 23 slides to the intersection of the straight line section 321 of the sliding groove 32 and the arc section 322, the armor sleeve 3 is rotated at the moment, so that the sliding block 23 slides into the arc section 322 of the sliding groove 32, at the moment, one end of the limiting block 232, which is subjected to the elasticity of the spring 233, extends out of the through hole 324, and then the cable and the armor sleeve 3 are buried in soil; the above operation is then repeated to uniformly install the plurality of armor jackets 3 at intervals along the length direction of the cable.
After the cable is installed, the sliding block 23 on the sheath 2 is clamped in the arc section 322 of the sliding groove 32, so that a thief is prevented from directly pulling out the cable core 1, the limiting block 232 on the sliding block 23 extends out of the through hole 324 and is inserted into soil, the cable core 1 and the armor sleeve 3 can be further prevented from being pulled out together by the thief, the limiting rod 31 on the armor sleeve 3 can prevent the cable core 1 and the armor sleeve 3 from being pulled out together by the thief, when the cable is stolen, the thief needs to dig out all the armor sleeves 3 from the position below the ground surface, the theft difficulty is greatly increased, and the problem that the cable is easy to steal is solved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. The utility model provides a fire prevention B1 level cable which characterized in that: the cable comprises a cable core (1), a sheath (2) and an armor sleeve (3), wherein a plurality of cable cores (1) are arranged, the sheath (2) is wrapped outside a plurality of cable cores (1), a sliding groove (32) is formed in the inner wall of the armor sleeve (3), a plurality of sliding blocks (23) are arranged outside the sheath (2), the sliding blocks (23) are positioned in the sliding groove (32), the sliding groove (32) comprises a straight line section (321) and a plurality of arc line sections (322), the straight line section (321) is axially arranged along the armor sleeve (3), the arc line sections (322) are circumferentially arranged along the armor sleeve (3), and the arc line sections (322) are uniformly distributed along the length direction of the straight line section (321) at intervals; the armor (3) is provided with an anti-slip strip (323) in the straight line section (321), and the anti-slip strip (323) is fixedly connected with the armor (3).
2. A fire resistant B1 class cable according to claim 1, characterized in that: the armor (3) is characterized in that a through hole (324) is formed in the end, away from the straight line section (321), of the arc section (322), a limiting block (232) is elastically connected to the sliding block (23), and one end, away from the sliding block (23), of the limiting block (232) extends out of the through hole (324).
3. A fire resistant B1 class cable according to claim 1, characterized in that: the cable core is characterized in that a plurality of armor sleeves (3) are arranged, and the armor sleeves (3) are uniformly distributed along the length direction of the cable core (1) at intervals.
4. A fire resistant B1 class cable according to claim 2, characterized in that: one end of the limiting block (232), which is far away from the sliding block (23), is provided with a guide surface (2321) which is obliquely arranged, and the guide surface (2321) is used for guiding the cable core (1) to penetrate into the armor sleeve (3).
5. A fire resistant B1 class cable according to claim 1, characterized in that: and a plurality of limiting rods (31) are fixedly connected to the outer part of the armor sleeve (3).
6. A fire resistant B1 class cable according to claim 1, characterized in that: the cable core (1) comprises a conductor (11), a fireproof layer (12) and an insulating layer (13), wherein the fireproof layer (12) is coated outside the conductor (11), the insulating layer (13) is coated outside the fireproof layer (12), a cladding (21) is arranged in the sheath (2), the cladding (21) is coated outside the cable core (1), and a plurality of filling strips (22) are arranged between the cladding (21) and the cable core (1).
7. A fire resistant class B1 cable according to claim 6, wherein: the fireproof layer (12) is a mica tape.
8. A fire resistant class B1 cable according to claim 7, wherein: the sheath (2) and the insulating layer (13) are made of halogen-free low-smoke flame-retardant polyolefin materials.
9. A fire resistant class B1 cable according to claim 7, wherein: the cladding (21) is a halogen-free ceramic flame-retardant tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156614.5A CN113936848B (en) | 2021-09-30 | 2021-09-30 | Fireproof B1-level cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156614.5A CN113936848B (en) | 2021-09-30 | 2021-09-30 | Fireproof B1-level cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113936848A CN113936848A (en) | 2022-01-14 |
| CN113936848B true CN113936848B (en) | 2024-01-23 |
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ID=79277692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111156614.5A Active CN113936848B (en) | 2021-09-30 | 2021-09-30 | Fireproof B1-level cable |
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| Country | Link |
|---|---|
| CN (1) | CN113936848B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208444643U (en) * | 2018-06-22 | 2019-01-29 | 广东东南电缆实业有限公司 | A kind of high temperature-proof armouring Multi-layer compressive cable |
| CN109346233A (en) * | 2018-12-10 | 2019-02-15 | 江苏艾克亚特电缆科技有限公司 | A kind of antitheft buried cable |
| CN211980274U (en) * | 2020-06-13 | 2020-11-20 | 上海南大集团浙江电缆有限公司 | Power cable and protective outer sleeve thereof |
| CN211981455U (en) * | 2020-05-25 | 2020-11-20 | 深圳中缆电缆集团有限公司 | Anti-theft high-safety underground cable |
| CN112017823A (en) * | 2020-09-03 | 2020-12-01 | 安徽中通电缆科技有限公司 | Low-smoke halogen-free BI-level fire-resistant power cable |
| CN212434291U (en) * | 2020-07-14 | 2021-01-29 | 上海南大集团浙江电缆有限公司 | Cable with improved insulation |
| CN212627013U (en) * | 2020-08-12 | 2021-02-26 | 重庆吉首电线电缆有限公司 | Fireproof flame-retardant sheath for mounting low-voltage cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070084046A1 (en) * | 2005-10-19 | 2007-04-19 | Allan Stikeleather | Method of Repairing Helical Cable Sheathing |
-
2021
- 2021-09-30 CN CN202111156614.5A patent/CN113936848B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208444643U (en) * | 2018-06-22 | 2019-01-29 | 广东东南电缆实业有限公司 | A kind of high temperature-proof armouring Multi-layer compressive cable |
| CN109346233A (en) * | 2018-12-10 | 2019-02-15 | 江苏艾克亚特电缆科技有限公司 | A kind of antitheft buried cable |
| CN211981455U (en) * | 2020-05-25 | 2020-11-20 | 深圳中缆电缆集团有限公司 | Anti-theft high-safety underground cable |
| CN211980274U (en) * | 2020-06-13 | 2020-11-20 | 上海南大集团浙江电缆有限公司 | Power cable and protective outer sleeve thereof |
| CN212434291U (en) * | 2020-07-14 | 2021-01-29 | 上海南大集团浙江电缆有限公司 | Cable with improved insulation |
| CN212627013U (en) * | 2020-08-12 | 2021-02-26 | 重庆吉首电线电缆有限公司 | Fireproof flame-retardant sheath for mounting low-voltage cable |
| CN112017823A (en) * | 2020-09-03 | 2020-12-01 | 安徽中通电缆科技有限公司 | Low-smoke halogen-free BI-level fire-resistant power cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113936848A (en) | 2022-01-14 |
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