CN112750555A - Ceramic silicon rubber insulation fireproof cable - Google Patents
Ceramic silicon rubber insulation fireproof cable Download PDFInfo
- Publication number
- CN112750555A CN112750555A CN201911051501.1A CN201911051501A CN112750555A CN 112750555 A CN112750555 A CN 112750555A CN 201911051501 A CN201911051501 A CN 201911051501A CN 112750555 A CN112750555 A CN 112750555A
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- Prior art keywords
- layer
- cable
- fireproof
- insulating layer
- silicon rubber
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- 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
- H01B7/0045—Cable-harnesses
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- 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
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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- 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
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- 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
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- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cables, in particular to a ceramic silicon rubber insulation fireproof cable which comprises a cable sleeve, wherein at least one low-voltage cable and at least one medium-voltage cable are integrated in the cable sleeve, the low-voltage cable, the medium-voltage cable and the cable sleeve are filled with filling materials or filling ropes, the low-voltage cable comprises a conductive wire core, an insulating layer and a ring protective sleeve which are sequentially arranged from inside to outside, and a fireproof layer is arranged between the insulating layer and the ring protective sleeve.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a ceramic silicon rubber insulation fireproof cable.
Background
In recent years, people have more profound understanding on fire fighting and fire prevention safety after serious losses of lives and properties of people who are painful due to fires of a plurality of domestic large public entertainment places, chemical engineering, coal mines and commercial buildings. With the rapid increase of urban population, the continuous increase of high-rise buildings, hotels, supermarkets, hospitals, stations and airports, the construction of subways and tunnel traffic, the increase of large-scale public sports, entertainment places and public traffic facilities, and the importance of fire protection and fire prevention safety is highlighted. How to guarantee the smoothness of electric power and communication within a certain time under the condition of fire, win precious rescue time to the utmost extent, reduce casualties of people and loss of lives and properties, which is a subject that people are constantly exploring.
However, in the current electric wire and cable, a part of the material is PVC containing halogen elements, which causes a large amount of toxic gases to be generated when producing, manufacturing, using, discarding and disposing cable products, and the cables are used in large public entertainment places, and when casualties occur in public places in fire, a large amount of combustible materials are used, and the cables which generate a large amount of smoke and toxic gases are burnt. As China has a large population and the density of people in public places is high, 80% of people in fire disasters in the public places die because of the inhalation of toxic gas, and a large amount of smoke generated during combustion is not beneficial to people evacuation and fire rescue.
Disclosure of Invention
The invention aims to provide a fireproof, low-smoke and nontoxic ceramic silicon rubber insulation fireproof cable aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a pottery silicon rubber insulation fireproof cable, includes the cable jacket, at least one low tension cable and at least one medium tension cable are gathered to the cable jacket content, the low tension cable, medium tension cable with pack the type material or fill the rope packing between the cable jacket, the low tension cable includes from interior to exterior sets gradually conductive core, insulating layer and ring protective sheath, the insulating layer with be equipped with the flame retardant coating between the ring protective sheath, the quantity of flame retardant coating is a plurality of, a plurality of the flame retardant coating is around the package or crowded package in the insulating layer with between the ring protective sheath, the insulating layer includes the three-layer, and the inlayer is semiconductor conductor shielding layer, and the centre is crosslinked polyethylene insulating layer, and the skin is semi-conductive insulation shielding layer, the insulating layer is by above-mentioned three-layer co-extrusion molding, conductive core is the soft copper round copper wire round hinge that a plurality of diameters are the same and set up with one heart, the ring protective sleeve is a ceramic halogen-free flame-retardant fireproof sheath, and the flame-retardant layer is a ceramic halogen-free flame-retardant material; the medium-voltage cable comprises a crosslinked polyethylene insulated copper strip shielding wire core, a composite fireproof protective layer, an alkali-free rock wool filling layer, an alkali-free glass fiber wrapping tape, a ceramic silicon rubber inner sheath, a steel strip armor layer and a low-smoke halogen-free outer sheath which are sequentially arranged from inside to outside.
The inner layer, the middle layer and the outer layer of the insulating layer are all formed by extrusion of halogen-free insulating materials.
The composite fireproof protective layer is formed by mixing fireproof mica tapes and alkali-free glass fiber wrapping tapes.
The invention has the beneficial effects that: the ring protective sleeve of the low-voltage cable is made of a ceramic halogen-free flame-retardant fireproof ring protective sleeve, the fireproof layer is made of a ceramic fireproof silicon rubber insulating material, and the ceramic fireproof silicon rubber insulating material is non-toxic and odorless at normal temperature, has good flexibility and elasticity, and good processing type, under the conditions of high temperature of more than 500 ℃ and flame ablation, organic components can be ablated and converted into hard ceramic-like substances within a short time to form a good isolation layer to prevent flame from continuing to burn, the higher the ablation time is, the higher the temperature is, the more obvious the hard effect is, the ablation temperature can reach 1200-1500 ℃, powdery ash cannot be formed after the ceramic fireproof ring protective sleeve is burnt, and the purposes of good fireproof and fireproof effects, safety and environmental protection are really achieved;
the medium-voltage cable has feasible process manufacturing, good fire resistance, can ensure that the cable works in a combustion environment for a long time, and has good popularization and use values;
adopt low tension cable and well cable to mutually support for ceramic silicon rubber has excellent elasticity at normal atmospheric temperature, the compliance, fire resistance, the electrical property, still possess outstanding high low temperature resistance simultaneously, and it is halogen-free, tasteless, to the human body, natural environment does not have harmful effects, the flue gas after the burning is very little, there is not smoke toxicity, the flue gas is also harmless to the human body, can burn into hard ceramic form under the condition of conflagration, high temperature, fire-resistant safety effect has, can not spread, the harmful gas of burning and production hydrogen halide, reach the design requirement of green environment-friendly safety cable.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a ceramic silicon rubber insulated fireproof cable according to the present invention.
Fig. 1 includes:
the cable comprises a cable sleeve 1, a low-voltage cable 2, a conductive wire core 21, an insulating layer 22, a semiconductive conductor shielding layer 221, a crosslinked polyethylene insulating layer 222, a semiconductive insulating shielding layer 223, a fire-resistant layer 23, an annular protective sleeve 24, a medium-voltage cable 3, a crosslinked polyethylene insulating copper strip shielding wire core 31, a composite fire-resistant protective layer 32, an alkali-free rock wool filling layer 33, an alkali-free glass fiber wrapping tape 34, a ceramic silicone rubber inner sheath 35, a steel strip armor layer 36, a low-smoke halogen-free outer sheath 37 and a filling type material 4.
Detailed Description
The invention is further described with reference to the following examples.
The embodiment of the invention relates to a ceramic silicon rubber insulation fireproof cable, as shown in fig. 1, which comprises a cable sleeve 1, wherein at least one low-voltage cable 2 and at least one medium-voltage cable 3 are collected in the cable sleeve 1, the low-voltage cable 2, the medium-voltage cable 3 and the cable sleeve 1 are filled with filling type materials 4 or filling ropes, the low-voltage cable 2 comprises a conductive wire core 21, an insulating layer 22 and a ring protective sleeve 24 which are sequentially arranged from inside to outside, a fire-resistant layer 23 is arranged between the insulating layer 22 and the ring protective sleeve 24, a plurality of fire-resistant layers 23 are arranged, the fire-resistant layers 23 are wrapped or extruded between the insulating layer 22 and the ring protective sleeve 24, the insulating layer 22 comprises three layers, the inner layer is a semiconductive conductor shielding layer 221, the middle layer is a crosslinked polyethylene insulating layer 222, and the outer layer is a semiconductive insulation shielding layer 223, the insulating layer 22 is formed by the three layers in a co-extrusion mode, the conductive wire core 21 is formed by hinging a plurality of soft round copper wires which have the same diameter and are concentrically arranged, the annular protective sleeve 24 is a low-smoke halogen-free sheath, and the flame retardant layer 23 is a ceramic halogen-free flame retardant material; the medium voltage cable 3 comprises a crosslinked polyethylene insulated copper strip shielding wire core 31, a composite fireproof protective layer 32, an alkali-free rock wool filling layer 33, an alkali-free glass fiber wrapping tape 34, a ceramic silicon rubber inner sheath 35, a steel strip armor layer 36 and a low-smoke halogen-free outer sheath 37 which are sequentially arranged from inside to outside.
In the structure, the ring protective sleeve 24 of the low-voltage cable 2 is made of a ceramic halogen-free flame-retardant fireproof ring protective sleeve 24, the fireproof layer 23 is made of a ceramic fireproof silicon rubber insulating material, and the ceramic fireproof silicon rubber insulating material is non-toxic and odorless at normal temperature, has good flexibility and elasticity, and good processing type, under the ablation of high temperature above 500 ℃ and flame, organic components are ablated and converted into hard ceramic-like substances within a short time to form a good insulating layer to block the continuous combustion of the flame, the longer the ablation time is, the higher the temperature is, the more obvious the hard effect is, the ablation temperature can reach 1200-1500 ℃, powdery ash cannot be formed after the ablation, and the purposes of good fireproof and fireproof effects, safety and environmental protection are really achieved.
The medium-voltage cable 3 has the advantages of feasible process manufacturing, good fire resistance, capability of ensuring that the cable works in a combustion environment for a long time, and good popularization and use values.
Adopt low tension cable 2 and well cable to mutually support for ceramic silicon rubber has excellent elasticity at normal atmospheric temperature, compliance, fire resistance, electrical property, still possess outstanding high low temperature resistance simultaneously, and it is halogen-free, tasteless, to the human body, natural environment does not have harmful effects, the flue gas after the burning is very little, there is not smoke toxicity, the flue gas is also harmless to the human body, can burn into hard ceramic form under the condition of conflagration, high temperature, fire-resistant safety effect has, can not stretch, burning and produce the harmful gas of hydrogen halide, reach the design requirement of green environment-friendly safety cable.
The inner layer, the middle layer and the outer layer of the insulating layer 22 are all formed by extrusion of halogen-free insulating materials.
The composite fire-resistant protective layer 32 is formed by mixing fire-resistant mica tapes and alkali-free glass fiber tape 34.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. A pottery silicon rubber insulation fireproof cable which characterized in that: the cable comprises a cable sleeve, wherein at least one low-voltage cable and at least one medium-voltage cable are integrated in the cable sleeve, the low-voltage cable, the medium-voltage cable and the cable sleeve are filled with filling materials or filling ropes, the low-voltage cable comprises a conductive wire core, an insulating layer and a ring protective sleeve which are sequentially arranged from inside to outside, a fire-resistant layer is arranged between the insulating layer and the ring protective sleeve, the number of the fire-resistant layers is multiple, the fire-resistant layers are wrapped or extruded between the insulating layer and the ring protective sleeve, the insulating layer comprises three layers, the inner layer is a semi-conductive conductor shielding layer, the middle layer is a cross-linked polyethylene insulating layer, the outer layer is a semi-conductive insulating shielding layer, the insulating layer is formed by the three layers in a co-extrusion mode, the conductive wire core is formed by hinging a plurality of soft round copper wires with the same diameter and concentrically arranged, and the ring protective sleeve, the fire-resistant layer is a ceramic halogen-free flame-retardant material; the medium-voltage cable comprises a crosslinked polyethylene insulated copper strip shielding wire core, a composite fireproof protective layer, an alkali-free rock wool filling layer, an alkali-free glass fiber wrapping tape, a ceramic silicon rubber inner sheath, a steel strip armor layer and a low-smoke halogen-free outer sheath which are sequentially arranged from inside to outside.
2. The ceramic silicon rubber insulated fireproof cable of claim 1, wherein: the inner layer, the middle layer and the outer layer of the insulating layer are all formed by extrusion of halogen-free insulating materials.
3. The ceramic silicon rubber insulated fireproof cable of claim 1, wherein: the composite fireproof protective layer is formed by mixing fireproof mica tapes and alkali-free glass fiber wrapping tapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911051501.1A CN112750555A (en) | 2019-10-30 | 2019-10-30 | Ceramic silicon rubber insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911051501.1A CN112750555A (en) | 2019-10-30 | 2019-10-30 | Ceramic silicon rubber insulation fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112750555A true CN112750555A (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911051501.1A Pending CN112750555A (en) | 2019-10-30 | 2019-10-30 | Ceramic silicon rubber insulation fireproof cable |
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| Country | Link |
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| CN (1) | CN112750555A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437596A1 (en) * | 1994-10-20 | 1996-04-25 | Daetwyler Ag | Flame-resistant composition for the production of electrical cables with insulation and / or functional integrity |
| CN102737767A (en) * | 2011-04-02 | 2012-10-17 | 上海永进电缆(集团)有限公司 | Fire-resistant soft ceramic cable |
| CN202758659U (en) * | 2012-08-06 | 2013-02-27 | 杭州电缆股份有限公司 | Medium-voltage fireproof environment-friendly power cable |
| CN103714905A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Multi-core medium-low voltage power cable |
| CN204596511U (en) * | 2015-04-10 | 2015-08-26 | 江苏宏图高科技股份有限公司 | The fire-resistant mesolow photoelectric compound cable of LSOH anti-flaming |
| CN205028704U (en) * | 2015-08-26 | 2016-02-10 | 安徽电缆股份有限公司 | Novel pottery nuclear power station is with fire -resistant silicon rubber medium voltage cable |
| CN205542009U (en) * | 2016-01-27 | 2016-08-31 | 天津北达线缆集团有限公司 | Electric automobile is with filling electric pile cable |
-
2019
- 2019-10-30 CN CN201911051501.1A patent/CN112750555A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437596A1 (en) * | 1994-10-20 | 1996-04-25 | Daetwyler Ag | Flame-resistant composition for the production of electrical cables with insulation and / or functional integrity |
| CN102737767A (en) * | 2011-04-02 | 2012-10-17 | 上海永进电缆(集团)有限公司 | Fire-resistant soft ceramic cable |
| CN202758659U (en) * | 2012-08-06 | 2013-02-27 | 杭州电缆股份有限公司 | Medium-voltage fireproof environment-friendly power cable |
| CN103714905A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Multi-core medium-low voltage power cable |
| CN204596511U (en) * | 2015-04-10 | 2015-08-26 | 江苏宏图高科技股份有限公司 | The fire-resistant mesolow photoelectric compound cable of LSOH anti-flaming |
| CN205028704U (en) * | 2015-08-26 | 2016-02-10 | 安徽电缆股份有限公司 | Novel pottery nuclear power station is with fire -resistant silicon rubber medium voltage cable |
| CN205542009U (en) * | 2016-01-27 | 2016-08-31 | 天津北达线缆集团有限公司 | Electric automobile is with filling electric pile cable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210504 |
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| RJ01 | Rejection of invention patent application after publication |