CN212782842U - High flame-retardant fire-resistant power cable - Google Patents
High flame-retardant fire-resistant power cable Download PDFInfo
- Publication number
- CN212782842U CN212782842U CN202021584015.4U CN202021584015U CN212782842U CN 212782842 U CN212782842 U CN 212782842U CN 202021584015 U CN202021584015 U CN 202021584015U CN 212782842 U CN212782842 U CN 212782842U
- Authority
- CN
- China
- Prior art keywords
- layer
- flame
- fire
- retardant
- power cable
- Prior art date
- 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.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 68
- 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 title claims abstract description 58
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 238000005253 cladding Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000017105 transposition Effects 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims description 19
- 229920000098 polyolefin Polymers 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 76
- 230000005540 biological transmission Effects 0.000 description 9
- 238000002955 isolation Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000006378 damage Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a high fire-retardant fire-resistant power cable, including a plurality of sinle silk 1 of group, every group sinle silk is outer cladding insulating layer 2, insulating screen 3 and metallic shield 4 in proper order, and a plurality of sinle silk 1 outsides after the transposition are cladding inner sheath 5 in proper order, separate oxygen layer 6, armor 7 and oversheath 8, characterized by, be provided with high temperature buffer area 9 between insulating screen 3 and the metallic shield 4, the outside cladding flame retardant coating 10 of metallic shield 4, it has flame retardant material to fill between flame retardant coating 10 and the inner sheath 8. According to the scheme, the high-temperature buffer belt 9 is wound outside the insulating shielding layer 3, so that when a circuit of the wire core is on fire, the metal shielding layer is prevented from damaging the insulating shielding layer due to expansion caused by heat and contraction caused by cold; each group of wire cores are extruded with a fireproof layer 10 behind the metal shielding layer, so that the heat insulation and fireproof effects are achieved, and the insulated wire cores are prevented from being deformed at high temperature; and a flame-retardant material is filled between the flame-retardant layer 10 and the inner sheath 8, so that the effects of fire resistance and heat insulation are achieved.
Description
Technical Field
The utility model belongs to the technical field of the cable technique and specifically relates to a high fire-retardant fire-resistant power cable.
Background
With the rapid development of national economy, the necessity of applying fire-resistant cables is greatly increased along with the demand of the cables, and the safety of the cables in use is widely concerned by people. Particularly, in places where cables are densely laid, fire disasters are easy to cause, and the places all put high requirements on the flame retardant and fire resistant performance of the cables. After a fire occurs, normal power supply of a line is guaranteed, and normal work of an elevator, an emergency lighting system, an automatic alarm system, a disaster relief system and the like is very important. The fireproof cable used in the current market has low fireproof performance, the metal shielding layer is directly coated outside the insulation shielding layer, the wire core expands after being heated, and the metal wire or the metal belt can damage the insulation; the oxygen-isolating layer with the flame-retardant and fire-resistant structure is added only after cabling, so that the transmission of external heat during combustion is difficult to be obstructed, the insulation deformation, yellowing and discharging are caused, and the requirements of long-time flame and high-temperature environment cannot be met. For example, a "copper core high flame retardant double insulation low smoke halogen-free fire resistant cable" disclosed in chinese patent document, whose publication number CN202534418U, comprises a stranded body formed by twisting three core wires, a flame retardant halogen-free glass fiber tape layer wrapped around the stranded body, and a low smoke halogen-free flame retardant sheath wrapped outside the flame retardant halogen-free glass fiber tape layer, wherein an inorganic mineral material is filled between the stranded body and the flame retardant halogen-free glass fiber tape layer; the core wire comprises a copper core conductor, a double-layer mica tape layer wrapped on the copper core conductor and a cross-linked polyethylene insulating layer extruded on the double-layer mica tape layer. The utility model discloses an except can transmit the electric energy under normal operating condition, still can keep the safe operation of certain time under the reburning condition. The low-smoke halogen-free flame-retardant sheath, the flame-retardant halogen-free glass fiber tape and the inorganic mineral material can resist high temperature, and the oxygen-insulating shell generated after decomposition plays a flame-retardant role. However, the prior art such as this has low fire resistance, and the wire core expands when heated, and the wire or the metal tape damages the insulating layer; the oxygen-isolating layer with the flame-retardant and fire-resistant structure is added only after cabling, so that the transmission of external heat during combustion is difficult to be obstructed, the insulation deformation, yellowing and discharging are caused, and the problems that the requirements of flame for a long time and a high-temperature environment cannot be met and the like are solved.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art's fire behavior low, the direct cladding metallic shield layer of insulating shield layer outside, the sinle silk is heated the back and is expanded, and wire or strap can harm insulatingly, only adds fire-retardant refractory structure behind the stranding and separates the oxygen layer and be difficult to the separation burning time outside thermal spreading into, lead to insulating variant, turn yellow, discharge, can't bear longer time flame and higher temperature environment scheduling problem, provide a high fire-retardant fire-resistant power cable, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme:
the utility model provides a high fire-retardant fire-resistant power cable, includes a plurality of groups sinle silk, every group sinle silk cladding insulating layer 2, insulating screen 3 and metallic shield 4 in proper order outward, a plurality of groups sinle silk 1 outsides after the transposition cladding inner sheath 5 in proper order, separate oxygen layer 6, armor 7 and oversheath 8, it has fire-retardant material, characterized by to fill between metallic shield 4 and the inner sheath 5, be provided with high temperature buffer area 9 between insulating screen 3 and the metallic shield 4, every group sinle silk cladding flame retardant coating 10 in the outside of metallic shield 4. According to the scheme, the buffer belt 9 is wound outside the insulating shielding layer 3, so that when the line of the wire core is on fire, the metal shielding layer is prevented from damaging the insulating shielding layer due to expansion with heat and contraction with cold; every group sinle silk wraps flame retardant coating 10 in crowded package behind the metallic shield layer, plays thermal-insulated fire-resistant effect, prevents that insulating sinle silk from receiving high temperature deformation, has overcome insulating deformation, yellowing, the discharge problem that the transmission of outside heat leads to when oxygen barrier is difficult to the separation burning, can bear longer time flame and higher temperature environment.
Preferably, the inner sheath 5 is made of halogen-free low-smoke flame-retardant polyolefin material, and the outer sheath 8 is made of environment-friendly low-smoke halogen-free flame-retardant polyolefin material. The halogen-free low-smoke flame-retardant polyolefin inner sheath plays a role in high flame retardance and heat insulation; the outer sheath is an environment-friendly low-smoke halogen-free flame-retardant polyolefin sheath, so that the energy-saving environment-friendly flame-retardant polyolefin sheath has the functions of energy conservation and high flame retardance.
Preferably, the oxygen-insulating layer 6 and the fire-resistant layer 10 both adopt ceramic halogen-free low-smoke flame-retardant polyolefin materials. The fire-retardant polyolefin fire prevention flame retardant coating 10 of zero halogen low smoke of pottery of every group sinle silk, outside thermal afferent into during the separation burning, can prevent spreading of flame better, and the effectual outside heat that slows down is to the inside transmission of cable, delays outside high temperature to the influence of insulating sinle silk, can adapt to more abominable environment than the fire prevention fire-resistant cable of individual layer flame retardant coating, reaches the fire-resistant requirement of high fire prevention. The ceramic halogen-free low-smoke flame-retardant polyolefin oxygen-insulating layer has the effects of heat insulation, cooling and incrustation after thermal decomposition, a large amount of hydrated oxides in the material are heated, water molecules are evaporated, a large amount of heat can be absorbed, the temperature of a cable is reduced, the oxygen concentration around the cable can be diluted by forming water vapor, flame and heat are prevented from spreading and transferring to the inside of the cable, on-site water pouring can be effectively resisted after the oxygen-insulating layer is incrusted, water is prevented from permeating into an insulating layer, and the normal operation of a circuit is maintained on a fire condition line.
Preferably, a layer of glass fiber tape is wrapped on the outer sides of the oxygen isolation layer 6 and the armor layer 7. The oxygen isolation layer 6 is wrapped with a layer of glass fiber tape, after the outer protective layer burns, the incrustation speed is high, the incrustation is very hard and compact, the horizontal burning can be self-extinguished without delayed burning, the transmission of external heat to the inside of the cable is powerfully slowed down, the integrity of the oxygen isolation layer can be better ensured by wrapping the glass fiber tape, and the transmission of heat is better prevented; the armor layer 7 is wrapped by a glass fiber tape to achieve the flame-retardant effect.
Preferably, the flame retardant material is a mineral paper rope. The flame-retardant material adopts the mineral paper rope, is flame-retardant, has excellent heat-conducting property and is beneficial to heat dissipation of the cable.
Preferably, the buffer zone 9 is made of a semiconductive high-temperature resistant material, and the thickness of the buffer zone 9 is 1.5 mm-2.5 mm. Wrap the semi-conductive high temperature resistant buffering area of one deck outside insulation shield, the sinle silk takes place to catch fire when the circuit, prevents that expend with heat and contract with cold from resulting in the metal shielding layer to produce the injury to insulation shield.
Preferably, the cable comprises three groups of cable cores, and the metal shielding layer 4 of each group of cable cores is shielded by a copper wire. Each group of wire cores is shielded by metal wires, so that the cross section of the metal shield is increased, and the requirement for larger short-circuit current is guaranteed.
Preferably, a reinforcing piece 12 is arranged in a cavity formed by twisting the three groups of wire cores, the cross section of the reinforcing piece 12 is triangular, and each corner of the triangle is embedded into a gap matched with every two wire cores. The reinforcing part 12 is simultaneously twisted with the three groups of wire cores, and the tensile strength of the cable can be enhanced by arranging the reinforcing part.
Therefore, the utility model discloses following beneficial effect has: (1) the high-temperature buffer belt is arranged, so that when the line is on fire, the wire core is prevented from being damaged by the metal shielding layer to the insulation shielding layer due to expansion caused by heat and contraction caused by cold; (2) the cable is filled with the mineral paper rope, so that the cable is flame-retardant, has excellent heat-conducting property and is beneficial to heat dissipation of the cable; (3) each group of wire cores are coated with a ceramic halogen-free low-smoke flame-retardant polyolefin fireproof fire-resistant layer, so that the cable is suitable for severe environment and meets the requirement of high fire resistance; (4) the heat-insulating fireproof layer is made of halogen-free low-smoke environment-friendly materials, has no toxicity after combustion, is soft in structure, small in bending radius, easy to install and lay and convenient to use; (5) every group sinle silk is crowded package flame retardant coating 10 behind the metallic shield layer, plays thermal-insulated fire-resistant effect, prevents that insulating sinle silk from receiving high temperature deformation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the cable comprises a cable core 2, an insulating layer 3, an insulating shielding layer 4, a metal shielding layer 5, an inner sheath 6, an oxygen isolation layer 7, an armor layer 8, an outer sheath 9, a high-temperature buffer zone 10, a fire-resistant layer 11, a mineral paper rope 12 and a reinforcement.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, a high-flame-retardant fire-resistant power cable comprises three groups of wire cores, each group of wire cores is sequentially coated with an insulating layer 2, an insulating shielding layer 3 and a metal shielding layer 4, a reinforcing member 12 is arranged in a cavity formed by twisting the three groups of wire cores 1, the cross section of the reinforcing member 12 is triangular, each corner of the triangle is embedded into a gap where every two wire cores are matched, the reinforcing member 12 is twisted with the three groups of wire cores simultaneously, and the tensile strength of the cable can be enhanced by arranging the reinforcing member. The outer sides of the three twisted wire cores 1 are sequentially coated with the inner sheath 5, the oxygen isolation layer 6, the armor layer 7 and the outer sheath 8, the metal shielding layer 4 is shielded by copper wires, each wire core is shielded by metal wires, the cross section of metal shielding is increased, and the requirement for large short-circuit current is guaranteed. The inner sheath 5 is made of halogen-free low-smoke flame-retardant polyolefin material, and the outer sheath 8 is made of environment-friendly low-smoke halogen-free flame-retardant polyolefin material. The halogen-free low-smoke flame-retardant polyolefin inner sheath plays a role in high flame retardance and heat insulation; the outer sheath is an environment-friendly low-smoke halogen-free flame-retardant polyolefin sheath, so that the energy-saving environment-friendly flame-retardant polyolefin sheath has the functions of energy conservation and high flame retardance. A high-temperature buffer zone 9 is arranged between the insulating shielding layer 3 and the metal shielding layer 4, a fire-resistant layer 10 is coated on the outer side of the metal shielding layer 4, and a flame-retardant material is filled between the fire-resistant layer 10 and the inner sheath 8. This scheme is taken 9 around wrapping the one deck buffering outside insulation screen 3, and buffering area 9 adopts semiconduction high temperature resistant material, and the thickness of buffering area 9 is 2mm, and when the sinle silk took place to catch fire in the circuit, prevented that expend with heat and contract with cold and lead to the metal shielding layer to produce the injury to insulation screen. Each group of wire cores are extruded with a fireproof layer 10 behind the metal shielding layer, so that the heat insulation and fireproof effects are achieved, and the insulated wire cores are prevented from being deformed at high temperature; the flame-retardant material is filled between the flame-retardant layer 10 and the inner sheath 5, and the flame-retardant material adopts the mineral paper rope, so that the flame-retardant cable is flame-retardant, has excellent heat-conducting property and is beneficial to heat dissipation of the cable. The provision of a carbon dioxide filled bladder provides the cable with a certain fire extinguishing capacity. And a layer of glass fiber tape is wrapped on the outer sides of the oxygen isolation layer 6 and the armor layer 7. The oxygen isolation layer 6 is wrapped with a layer of glass fiber tape, after the outer protective layer burns, the incrustation speed is high, the incrustation is very hard and compact, the horizontal burning can be self-extinguished without delayed burning, the transmission of external heat to the inside of the cable is powerfully slowed down, the integrity of the oxygen isolation layer can be better ensured by wrapping the glass fiber tape, and the transmission of heat is better prevented; the armor layer 7 is wrapped by a glass fiber tape to achieve the flame-retardant effect.
When a fire disaster happens, the buffer belt can prevent the metal shielding layer from damaging the insulating shielding layer due to expansion with heat and contraction with cold; the fire-resistant layer blocks the transmission of external heat during combustion; when a large amount of hydrated oxides in the oxygen insulation layer are heated, water molecules are evaporated, a large amount of heat can be absorbed, the temperature of the cable is reduced, water vapor is formed, the oxygen concentration around the cable can be diluted, flame and heat are prevented from spreading and transferring to the interior of the cable, on-site water pouring can be effectively resisted after the oxygen insulation layer is crusted, water is prevented from permeating into an insulating layer, normal operation is continued for at least 3 hours at the high temperature of 1150-1200 ℃, the insulating property can still be kept within a certain time, and the integrity of a line is ensured.
It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner of practicing the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (8)
1. The utility model provides a high fire-retardant fire-resistant power cable, includes a plurality of sinle silk of group (1), every sinle silk of group is outer cladding insulating layer (2), insulating shield (3) and metallic shield (4) in proper order, and a plurality of sinle silk of group (1) outside after the transposition is cladding inner sheath (5) in proper order, separates oxygen layer (6), armor (7) and oversheath (8), and it has flame retardant material, characterized by to fill between metallic shield (4) and inner sheath (5), be provided with between insulating shield (3) and the metallic shield (4) buffer zone (9), outside cladding flame retardant coating (10) of metallic shield (4).
2. A high flame-retardant fire-resistant power cable as claimed in claim 1, wherein said inner sheath (5) is made of halogen-free low-smoke flame-retardant polyolefin material, and said outer sheath (8) is made of environment-friendly low-smoke halogen-free flame-retardant polyolefin material.
3. A high flame-retardant fire-resistant power cable according to claim 1, wherein the oxygen-barrier layer (6) and the fire-resistant layer (10) are made of ceramic halogen-free low-smoke fire-resistant polyolefin material.
4. A high flame-retardant fire-resistant power cable as claimed in claim 1 or 3, wherein a layer of glass fiber tape is wrapped around the outside of the oxygen-barrier layer (6) and the armor layer (7).
5. The power cable as claimed in claim 1, wherein the flame retardant material is mineral paper rope.
6. A high flame-retardant fire-resistant power cable according to claim 1, wherein the buffer tape (9) is made of a semiconductive high-temperature-resistant material, and the thickness of the buffer tape (9) is 1.5mm to 2.5 mm.
7. A high flame-retardant fire-resistant power cable as claimed in claim 1, characterized by comprising three groups of cores (1), wherein the metal shielding layer (4) of each group of cores (1) is shielded by copper wire.
8. A high flame-retardant fire-resistant power cable as claimed in claim 7, wherein the cavity formed by the three groups of wire cores (1) is provided with a reinforcing member (12), the cross section of the reinforcing member (12) is triangular, and each corner of the triangle is embedded into the gap between two wire cores (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021584015.4U CN212782842U (en) | 2020-08-03 | 2020-08-03 | High flame-retardant fire-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021584015.4U CN212782842U (en) | 2020-08-03 | 2020-08-03 | High flame-retardant fire-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212782842U true CN212782842U (en) | 2021-03-23 |
Family
ID=75040066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021584015.4U Active CN212782842U (en) | 2020-08-03 | 2020-08-03 | High flame-retardant fire-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212782842U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141416A (en) * | 2021-11-30 | 2022-03-04 | 河北麟达铝合金线材有限公司 | Fireproof cable |
| CN114388189A (en) * | 2022-01-14 | 2022-04-22 | 夏雨辰 | Composite cable with good flame-retardant effect |
| CN115312247A (en) * | 2022-07-27 | 2022-11-08 | 深圳市成天泰电缆实业发展有限公司 | A high flame retardant cable with excellent flame retardant properties |
| CN118248399A (en) * | 2024-05-16 | 2024-06-25 | 无锡市群星线缆有限公司 | A vehicle-mounted high voltage cable and processing method |
| CN119092199A (en) * | 2024-09-04 | 2024-12-06 | 山东泰开电缆有限公司 | A fire-resistant cable |
-
2020
- 2020-08-03 CN CN202021584015.4U patent/CN212782842U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141416A (en) * | 2021-11-30 | 2022-03-04 | 河北麟达铝合金线材有限公司 | Fireproof cable |
| CN114141416B (en) * | 2021-11-30 | 2023-11-28 | 河北麟达铝合金线材有限公司 | Fireproof cable |
| CN114388189A (en) * | 2022-01-14 | 2022-04-22 | 夏雨辰 | Composite cable with good flame-retardant effect |
| CN115312247A (en) * | 2022-07-27 | 2022-11-08 | 深圳市成天泰电缆实业发展有限公司 | A high flame retardant cable with excellent flame retardant properties |
| CN118248399A (en) * | 2024-05-16 | 2024-06-25 | 无锡市群星线缆有限公司 | A vehicle-mounted high voltage cable and processing method |
| CN118248399B (en) * | 2024-05-16 | 2024-09-24 | 无锡市群星线缆有限公司 | A vehicle-mounted high voltage cable and processing method |
| CN119092199A (en) * | 2024-09-04 | 2024-12-06 | 山东泰开电缆有限公司 | A fire-resistant cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212782842U (en) | High flame-retardant fire-resistant power cable | |
| CN213123923U (en) | Armored high-flame-retardant fire-resistant power cable | |
| CN115171968B (en) | High-efficiency energy-saving medium-voltage fireproof cable | |
| CN209843344U (en) | Fireproof flame-retardant cable | |
| CN204760074U (en) | Super flexible fireproof cable of chain armor metal covering of mica insulation protection | |
| CN214505081U (en) | Fire-resistant fireproof three-core power cable | |
| CN217280178U (en) | Medium-voltage fire-resistant cable | |
| CN215450968U (en) | Stretch-proofing fire-retardant fire resisting cable | |
| CN213781624U (en) | A new type of low-smoke halogen-free fireproof 35kV power cable | |
| CN212061919U (en) | Water-blocking fireproof special cable | |
| CN211181712U (en) | Aluminum alloy interlocking armored cable | |
| CN212209008U (en) | Novel super A-level flame-retardant fire-resistant power cable | |
| CN203150200U (en) | Environment-friendly high flame resistant fireproof control cable used for fire-fighting security system | |
| CN218274069U (en) | A heat-resistant cable with good flame retardant effect | |
| CN222462431U (en) | A highly flame-retardant and fire-resistant power cable | |
| CN214377761U (en) | A fire-resistant super explosion-proof three-core cable for petroleum and petrochemical use | |
| CN216353498U (en) | Corrosion-resistant fireproof fire-fighting cable | |
| CN218497816U (en) | High-flame-retardant non-armored power cable | |
| CN111667944A (en) | A water-blocking and fire-proof special cable | |
| CN215770661U (en) | Water-cooled cable | |
| CN223728505U (en) | A flame-retardant and fire-resistant medium-voltage power cable | |
| CN223245323U (en) | A medium voltage fire-resistant power cable | |
| CN221261976U (en) | B (B)1Flexible mineral insulated cable of level | |
| CN220420316U (en) | Flame-retardant halogen-free super-crosslinked polyethylene insulated ultrahigh-voltage power cable | |
| CN223155710U (en) | Crosslinked polyethylene insulated steel tape armored polyvinyl chloride sheath flame-retardant power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |