CN113274668A - Cable overload protection device for communication network capable of preventing fire - Google Patents
Cable overload protection device for communication network capable of preventing fire Download PDFInfo
- Publication number
- CN113274668A CN113274668A CN202110584486.8A CN202110584486A CN113274668A CN 113274668 A CN113274668 A CN 113274668A CN 202110584486 A CN202110584486 A CN 202110584486A CN 113274668 A CN113274668 A CN 113274668A
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- fixedly connected
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- cable
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- 238000004891 communication Methods 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005485 electric heating Methods 0.000 claims abstract description 18
- 238000002844 melting Methods 0.000 claims abstract description 18
- 230000008018 melting Effects 0.000 claims abstract description 16
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 11
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 63
- 238000002955 isolation Methods 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 7
- 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 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- 150000003254 radicals Chemical class 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0045—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using solid substances, e.g. sand, ashes; using substances forming a crust
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing Compositions (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of communication equipment, and discloses a cable overload protection device for a communication network, which can prevent fire from happening and comprises a cable insulating layer and fire extinguishing dry powder, wherein a power-on conducting wire is fixedly connected inside the cable insulating layer, a positive conducting post is fixedly connected to the outer side of the cable insulating layer, a negative conducting post is fixedly connected to the outer side of the cable insulating layer, a supporting and fixing layer is fixedly connected to the outer side of the positive conducting post, an electric heating wire is fixedly connected to the outer side of the supporting and fixing layer, and a hot melting fault is fixedly connected to the outer side of the electric heating wire. This but cable overload protection device for communication network that fire prevention takes place opens the switch valve of giving vent to anger simultaneously for carbon dioxide gas contacts with the dry powder of putting out a fire, and the dry powder of putting out a fire adopts sodium bicarbonate fire extinguishing agent, leans on the volatile decomposition thing of the inorganic salt in the dry powder of putting out a fire, and produced free radical or active group of fuel take place chemical inhibition and negative catalysis in the combustion process, makes the chain reaction of burning interrupt and put out a fire.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a cable overload protection device for a communication network, which can prevent fire.
Background
Communication technology, also called communication engineering, is an important branch of electronic engineering, and communication engineering researches that information is transmitted from a transmitting end (information source) to one or more receiving ends (information sinks) through electric pulses in the form of electromagnetic waves, sound waves or light waves, along with the arrival of 3G and 4G communication and the development of future communication, the popularization of communication technology is more and more extensive, and the development of communication technology cannot leave the construction of cable infrastructure.
A cable is an electrical energy or signal transmission device, generally a rope-like cable made up of several twisted sets of conductors (at least two in each set), each set being insulated from the other and usually twisted around a center, the entire outer surface being covered with a highly insulating covering, the cable having internal current-carrying and external insulation characteristics. The current amount allowed to continuously pass through an electric line without overheating an electric wire is called safe ampacity or safe current, if the current flowing through a wire exceeds the safe ampacity, the wire is called overload, the maximum allowable working temperature of the wire is 65 ℃, and when the temperature exceeds the temperature, insulation can be rapidly aged and the line burns, so that a cable overload protection device for a communication network capable of preventing fire is provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the cable overload protection device for the communication network, which can prevent fire from happening, has the advantages of high safety factor and can prevent fire from happening, and solves the problems that the current flowing through a wire exceeds the safe current-carrying capacity, namely the wire is overloaded, the maximum allowable working temperature of the general wire is 65 ℃, and the insulation is rapidly aged or even the line burns when the temperature exceeds the temperature during overload.
(II) technical scheme
In order to realize the purposes of high safety factor and fire prevention, the invention provides the following technical scheme: a cable overload protection device for a communication network capable of preventing fire disaster comprises a cable insulating layer and fire extinguishing dry powder, wherein a power-on conducting wire is fixedly connected inside the cable insulating layer, a positive conducting column is fixedly connected to the outer side of the cable insulating layer, a negative conducting column is fixedly connected to the outer side of the cable insulating layer, a supporting and fixing layer is fixedly connected to the outer side of the positive conducting column, an electric heating wire is fixedly connected to the outer side of the supporting and fixing layer, a hot melting fault is fixedly connected to the outer side of the hot melting fault, a sealing layer is fixedly connected to the outer side of the sealing layer, the fire extinguishing dry powder is fixedly connected to the outer side of the fire extinguishing dry powder, a temperature isolation layer is arranged inside the temperature isolation layer, a gas outlet switch valve is fixedly connected inside the gas outlet, an electromagnet is fixedly connected to the outer side of the temperature isolation layer, a flexible supporting column is fixedly connected to the outer side of the temperature isolation layer, and an outer protective layer is fixedly connected to the outer side of the flexible supporting column, the inside carbon dioxide gas that is filled of outer protective layer, outer protective layer outside fixedly connected with magnet ejector pad.
Preferably, the negative conductive column is electrically connected to the electric heating wire, the electric heating wire is fixedly connected inside the hot melting fault, and the negative conductive column is electrified after being contacted with the electrified conducting wire, so that the electric heating wire is electrified, and the hot melting fault is melted.
Preferably, the air outlet switch valve adopts an electromagnetic control valve, the negative conductive column is electrically connected to the air outlet switch valve, and when the negative conductive column is in contact with the electrified conducting wire, the air outlet switch valve is powered on, so that carbon dioxide gas is in contact with the extinguishing dry powder.
Preferably, the fire extinguishing dry powder adopts a sodium bicarbonate fire extinguishing agent, and chemical inhibition and negative catalysis are performed on volatile decomposition products of inorganic salts in the fire extinguishing dry powder and free radicals or active groups generated by fuel in the combustion process, so that the combustion chain reaction is interrupted to extinguish fire.
Preferably, the negative conductive column is electrically connected to the electromagnet, the magnetism of the corresponding surface of the electromagnet and the magnet pushing block is opposite, and when the negative conductive column is in contact with the electrified conducting wire, the electromagnet is electrified to have magnetism, and attraction force is generated between the electromagnet and the magnet pushing block.
Preferably, the outer side of the outer protection layer is fixedly connected with a wear-resistant layer, and the outer side of the magnet push block is fixedly connected with an anti-slip layer, so that the outer protection layer is prevented from being worn, and the service life of the cable is shortened.
Preferably, the outer side of the electromagnet is fixedly connected with an elastic connecting rope, and the electromagnet is connected into a whole through the elastic connecting rope, so that the extrusion effect is better
Preferably, the hot melt fault is made of a wax sealing material with an insulation effect, and the inner side of the hot melt fault is fixedly connected with the flame-retardant layer, so that the hot melt fault has good sealing performance and an insulation effect.
(III) advantageous effects
Compared with the prior art, the invention provides a cable overload protection device for a communication network, which can prevent fire from happening and has the following beneficial effects:
1. the cable overload protection device for the communication network capable of preventing fire disaster has the advantages that when the current in the electrified conducting wire is overloaded and the temperature of the electrified conducting wire is increased to cause the combustion of the electrified conducting wire, the cable insulating layer is burnt out, so that the positive conducting post and the negative conducting post are contacted with the electrified conducting wire, when the negative conducting post is contacted with the electrified conducting wire, the electrification is carried out, so that the electric heating wire is electrified, the hot melting fault is melted, the fire extinguishing dry powder escapes, meanwhile, when the negative conducting post is contacted with the electrified conducting wire, the electromagnet is electrified to have magnetism, so that the magnet push block extrudes the outer protective layer, and carbon dioxide gas is extruded,
2. this but cable overload protection device for communication network that fire prevention takes place opens the switch valve of giving vent to anger simultaneously for carbon dioxide gas contacts with the dry powder of putting out a fire, and the dry powder of putting out a fire adopts sodium bicarbonate fire extinguishing agent, leans on the volatile decomposition thing of the inorganic salt in the dry powder of putting out a fire, and produced free radical or active group of fuel take place chemical inhibition and negative catalysis in the combustion process, makes the chain reaction of burning interrupt and put out a fire.
Drawings
FIG. 1 is a side view of a current carrying lead according to the present invention;
FIG. 2 is a schematic side view of a thermal fuse fault of the present invention;
FIG. 3 is a schematic side view of an outer protective layer according to the present invention;
FIG. 4 is a schematic side view of a temperature insulating layer according to the present invention.
In the figure: 1. a cable insulation layer; 2. a power-on wire; 3. a positive conductive post; 4. a negative conductive post; 5. a support fixing layer; 6. an electric heating wire; 7. thermally fusing the fault; 8. a sealing layer; 9. fire extinguishing dry powder; 10. a temperature insulating layer; 11. an air outlet; 12. an air outlet switch valve; 13. an electromagnet; 14. a flexible support column; 15. an outer protective layer; 16. carbon dioxide gas; 17. a magnet push block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an overload protection device for a communication network cable capable of preventing a fire disaster includes a cable insulating layer 1 and a dry powder extinguishing agent 9, a power-on wire 2 is fixedly connected inside the cable insulating layer 1, a positive conductive post 3 is fixedly connected outside the cable insulating layer 1, a negative conductive post 4 is fixedly connected outside the cable insulating layer 1, a supporting and fixing layer 5 is fixedly connected outside the positive conductive post 3, an electric heating wire 6 is fixedly connected outside the supporting and fixing layer 5, a hot melting fault 7 is fixedly connected outside the electric heating wire 6, the hot melting fault 7 is made of a wax sealing material with an insulating effect, a flame retardant layer is fixedly connected inside the hot melting fault 7, so that the overload protection device has good sealing performance and an insulating effect, the negative conductive post 4 is electrically connected to the electric heating wire 6, the electric heating wire 6 is fixedly connected inside the hot melting fault 7, and is powered on when the negative conductive post 4 contacts with the power-on wire 2, electrifying the electric heating wire 6 to melt the hot melting fault 7, fixedly connecting a sealing layer 8 on the outer side of the hot melting fault 7, fixedly connecting a fire extinguishing dry powder 9 on the outer side of the sealing layer 8, fixedly connecting a temperature isolation layer 10 on the outer side of the fire extinguishing dry powder 9, and carrying out chemical inhibition and negative catalysis on volatile decomposers of inorganic salts in the fire extinguishing dry powder 9 and free radicals or active groups generated by fuel in a combustion process by using a sodium bicarbonate fire extinguishing agent to interrupt a combustion chain reaction to extinguish fire;
an air outlet 11 is formed in the temperature isolation layer 10, an air outlet switch valve 12 is fixedly connected in the air outlet 11, the air outlet switch valve 12 adopts an electromagnetic control valve, a negative conductive column 4 is electrically connected to the air outlet switch valve 12, when the negative conductive column 4 is in contact with a power-on lead 2, the air outlet switch valve 12 is opened, so that carbon dioxide gas 16 is in contact with the fire extinguishing dry powder 9, an electromagnet 13 is fixedly connected at the outer side of the temperature isolation layer 10, a flexible support column 14 is fixedly connected at the outer side of the temperature isolation layer 10, an outer protection layer 15 is fixedly connected at the outer side of the flexible support column 14, a wear-resistant layer is fixedly connected at the outer side of the outer protection layer 15, an anti-slip layer is fixedly connected at the outer side of a magnet push block 17, so as to prevent the outer protection layer 15 from being worn, the service life of the cable is reduced, the carbon dioxide gas 16 is filled in the outer protection layer 15, the magnet push block 17 is fixedly connected at the outer side of the outer protection layer 15, and the negative conductive column 4 is electrically connected to the electromagnet 13, the electromagnet 13 and the corresponding surface of the magnet pushing block 17 are opposite in magnetism, when the negative conductive column 4 is in contact with the electrified conducting wire 2, the electromagnet 13 is electrified to have magnetism, attraction force is generated between the electromagnet 13 and the magnet pushing block 17, the outer side of the magnet pushing block 17 is fixedly connected with an elastic connecting rope, the magnet pushing block 17 is connected into a whole through the elastic connecting rope, and the extrusion effect is better.
The working principle is as follows: when the current in the electrified conducting wire 2 is overloaded and the temperature of the electrified conducting wire 2 is increased to cause the electrified conducting wire 2 to burn, the cable insulating layer 1 is burnt, so that the positive conducting post 3 and the negative conducting post 4 are in contact with the electrified conducting wire 2, and the negative conducting post 4 is electrified after being in contact with the electrified conducting wire 2, so that the electric heating wire 6 is electrified, the hot melting fault layer 7 is melted, the fire extinguishing dry powder 9 escapes, meanwhile, the negative conducting post 4 is electrified after being in contact with the electrified conducting wire 2, so that the electromagnet 13 is electrified and has magnetism, and attraction force is generated between the electromagnet push block 17, so that the magnet push block 17 extrudes the outer protective layer 15, and the carbon dioxide gas 16 is extruded;
and meanwhile, the air outlet switch valve 12 is opened, so that the carbon dioxide gas 16 is in contact with the fire extinguishing dry powder 9, the fire extinguishing dry powder 9 adopts a sodium bicarbonate fire extinguishing agent, and chemical inhibition and negative catalysis are performed on volatile decomposition products of inorganic salts in the fire extinguishing dry powder 9 and free radicals or active groups generated by fuel in the combustion process, so that the combustion chain reaction is interrupted to extinguish fire.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a but cable overload protection device for communication network that prevention conflagration took place, includes cable insulating layer (1) and dry powder (9) of putting out a fire, its characterized in that: the cable comprises a cable insulating layer (1), a power-on wire (2) fixedly connected with the inside of the cable insulating layer (1), a positive conductive column (3) fixedly connected with the outer side of the cable insulating layer (1), a negative conductive column (4) fixedly connected with the outer side of the cable insulating layer (1), a supporting and fixing layer (5) fixedly connected with the outer side of the positive conductive column (3), an electric heating wire (6) fixedly connected with the outer side of the supporting and fixing layer (5), a hot melting fault (7) fixedly connected with the outer side of the electric heating wire (6), a sealing layer (8) fixedly connected with the outer side of the hot melting fault (7), a fire extinguishing dry powder (9) fixedly connected with the outer side of the sealing layer (8), a temperature isolation layer (10) fixedly connected with the outer side of the fire extinguishing dry powder (9), a gas outlet (11) formed in the temperature isolation layer (10), a gas outlet (11) fixedly connected with a gas outlet switch valve (12) in the gas outlet (11), and an electromagnet (13) fixedly connected with the outer side of the temperature isolation layer (10), temperature insulating layer (10) outside fixedly connected with flexible support column (14), flexible support column (14) outside fixedly connected with outer protective layer (15), the inside carbon dioxide gas (16) that is filled of outer protective layer (15), outer protective layer (15) outside fixedly connected with magnet ejector pad (17).
2. The apparatus of claim 1, wherein the apparatus comprises: the negative conductive column (4) is electrically connected to the electric heating wire (6), and the electric heating wire (6) is fixedly connected inside the hot melting fault layer (7).
3. The apparatus of claim 1, wherein the apparatus comprises: the air outlet switch valve (12) adopts an electromagnetic control valve, and the negative conductive column (4) is electrically connected to the air outlet switch valve (12).
4. The apparatus of claim 1, wherein the apparatus comprises: the fire extinguishing dry powder (9) adopts sodium bicarbonate fire extinguishing agent.
5. The apparatus of claim 1, wherein the apparatus comprises: the negative conductive column (4) is electrically connected to the electromagnet (13), and the magnetism of the corresponding surface of the electromagnet (13) and the magnet push block (17) is opposite.
6. The apparatus of claim 1, wherein the apparatus comprises: the outer side of the outer protection layer (15) is fixedly connected with a wear-resistant layer, and the outer side of the magnet push block (17) is fixedly connected with an anti-slip layer.
7. The apparatus of claim 1, wherein the apparatus comprises: and an elastic connecting rope is fixedly connected to the outer side of the electromagnet (13).
8. The apparatus of claim 1, wherein the apparatus comprises: the hot-melting fault (7) is made of a wax sealing material with an insulating effect, and a flame-retardant layer is fixedly connected to the inner side of the hot-melting fault (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584486.8A CN113274668B (en) | 2021-05-27 | 2021-05-27 | Cable overload protection device for communication network capable of preventing fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584486.8A CN113274668B (en) | 2021-05-27 | 2021-05-27 | Cable overload protection device for communication network capable of preventing fire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113274668A true CN113274668A (en) | 2021-08-20 |
| CN113274668B CN113274668B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110584486.8A Active CN113274668B (en) | 2021-05-27 | 2021-05-27 | Cable overload protection device for communication network capable of preventing fire |
Country Status (1)
| Country | Link |
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| CN (1) | CN113274668B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167792A (en) * | 2021-12-15 | 2022-03-11 | 安徽航天立安安全科技有限公司 | Fire extinguishing driving self-checking control system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001035267A (en) * | 1999-07-22 | 2001-02-09 | Yazaki Corp | Fire resisting wire and fire resisting cable |
| CN105957609A (en) * | 2016-06-16 | 2016-09-21 | 安徽太平洋电缆股份有限公司 | Medium-voltage hoisting fire-resistant cable and preparation method thereof |
| CN109087748A (en) * | 2018-08-15 | 2018-12-25 | 金学庆 | A kind of fire-retardant fireproof power cable |
| CN111192718A (en) * | 2020-01-06 | 2020-05-22 | 广西广缆科技集团有限公司 | Medium-voltage fire-resistant power cable |
| CN210956201U (en) * | 2019-11-25 | 2020-07-07 | 江苏昌德嘉电缆有限公司 | High flame-retardant fire-resistant special power cable |
| CN111564255A (en) * | 2020-06-23 | 2020-08-21 | 安徽天星电缆科技有限公司 | Vehicle-mounted data cable |
| CN111768912A (en) * | 2020-07-09 | 2020-10-13 | 安徽凌宇电缆科技有限公司 | Cable with fire extinguishing function |
| CN212782827U (en) * | 2020-08-25 | 2021-03-23 | 鑫泰线缆有限公司 | Flame-retardant nontoxic low-voltage cable |
| CN212998129U (en) * | 2020-04-30 | 2021-04-20 | 李丹 | Ultra-high temperature resistant self-extinguishing protection structure, self-extinguishing net sleeve, self-extinguishing cloth and cable joint sheath |
| US10996413B2 (en) * | 2019-03-26 | 2021-05-04 | Prysmian S.P.A. | Fire resistant optical fibre cable with high fibre count |
-
2021
- 2021-05-27 CN CN202110584486.8A patent/CN113274668B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001035267A (en) * | 1999-07-22 | 2001-02-09 | Yazaki Corp | Fire resisting wire and fire resisting cable |
| CN105957609A (en) * | 2016-06-16 | 2016-09-21 | 安徽太平洋电缆股份有限公司 | Medium-voltage hoisting fire-resistant cable and preparation method thereof |
| CN109087748A (en) * | 2018-08-15 | 2018-12-25 | 金学庆 | A kind of fire-retardant fireproof power cable |
| US10996413B2 (en) * | 2019-03-26 | 2021-05-04 | Prysmian S.P.A. | Fire resistant optical fibre cable with high fibre count |
| CN210956201U (en) * | 2019-11-25 | 2020-07-07 | 江苏昌德嘉电缆有限公司 | High flame-retardant fire-resistant special power cable |
| CN111192718A (en) * | 2020-01-06 | 2020-05-22 | 广西广缆科技集团有限公司 | Medium-voltage fire-resistant power cable |
| CN212998129U (en) * | 2020-04-30 | 2021-04-20 | 李丹 | Ultra-high temperature resistant self-extinguishing protection structure, self-extinguishing net sleeve, self-extinguishing cloth and cable joint sheath |
| CN111564255A (en) * | 2020-06-23 | 2020-08-21 | 安徽天星电缆科技有限公司 | Vehicle-mounted data cable |
| CN111768912A (en) * | 2020-07-09 | 2020-10-13 | 安徽凌宇电缆科技有限公司 | Cable with fire extinguishing function |
| CN212782827U (en) * | 2020-08-25 | 2021-03-23 | 鑫泰线缆有限公司 | Flame-retardant nontoxic low-voltage cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167792A (en) * | 2021-12-15 | 2022-03-11 | 安徽航天立安安全科技有限公司 | Fire extinguishing driving self-checking control system |
| CN114167792B (en) * | 2021-12-15 | 2022-05-31 | 安徽航天立安安全科技有限公司 | Fire extinguishing driving self-checking control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113274668B (en) | 2022-06-17 |
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Effective date of registration: 20231206 Address after: Room 306, Building 2, No. 138 Ding Road, Liangzhu Street, Yuhang District, Hangzhou City, Zhejiang Province, 311112 Patentee after: Hangzhou Optical Electronic Instrument Co.,Ltd. Address before: 063000 No. 156 North Jianshe Road, Tangshan City Road, Hebei Patentee before: Tangshan Normal University |