CN110033895B - Fireproof flame-retardant wrapping tape for power cable with semi-conductivity and preparation method - Google Patents
Fireproof flame-retardant wrapping tape for power cable with semi-conductivity and preparation method Download PDFInfo
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- CN110033895B CN110033895B CN201910321492.7A CN201910321492A CN110033895B CN 110033895 B CN110033895 B CN 110033895B CN 201910321492 A CN201910321492 A CN 201910321492A CN 110033895 B CN110033895 B CN 110033895B
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- fireproof flame
- coating
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- glass fiber
- fiber cloth
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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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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- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
Abstract
The invention provides a fireproof flame-retardant wrapping tape for a semi-conductive power cable and a preparation method thereof, wherein the fireproof flame-retardant wrapping tape for the semi-conductive power cable comprises a tape body and a wrapping tape, the tape body comprises glass fiber cloth, a fireproof flame-retardant layer and a semi-conductive coating, the wrapping tape is made of a non-magnetic metal material, and the non-magnetic metal material is bound on the surface of the wrapped tape body at equal intervals during wrapping operation. The fireproof flame-retardant layer enables the product to have stronger fireproof flame retardance, ensures that the belt body is complete and does not burn through, and effectively protects the internal cable; the semi-conductive coating is in accordance with the requirement that the outer coating of the high-voltage cable in China has semi-conductivity, thereby being beneficial to the operation safety of the cable and operation and maintenance personnel, and the product has good water resistance, salt resistance and acid and alkali resistance, wherein the black belt body is beneficial to the load heat dissipation of the cable; all components and materials do not contain halogen, so that the environment-friendly and nontoxic effects are ensured at normal temperature and during combustion; when the wrapping construction is carried out, the non-magnetic metal material ribbon is used for fixing, the eddy effect can be ignored, and flame delay can be effectively prevented.
Description
Technical Field
The invention belongs to the technical field of fireproof flame retardance, and particularly relates to a fireproof flame-retardant wrapping tape for a power cable with semi-conductivity and a preparation method of the fireproof flame-retardant wrapping tape.
Background
The fire-retardant belt in the existing application has weak pertinence to the actual needs of the power cable. When fire occurs, the inner cable cannot be effectively protected, and the requirement that the outer coating of the high-voltage cable in China has semiconductivity is not met. The phenomena that various products of fireproof coatings and self-adhesive fireproof tapes on the market are likely to peel off when meeting water and high temperature can occur in the using process. Some fire brigade strips abroad need double-layer wrapping, are unfavorable for load heat to give off in the cable use, and influence the current-carrying capacity, and the construction degree of difficulty also can increase.
Disclosure of Invention
The invention provides a fireproof flame-retardant wrapping tape for a power cable with semi-conductivity and a preparation method thereof, aiming at solving the technical problems, the fireproof flame-retardant wrapping tape can effectively prevent fire from burning and delaying burning, protects an internal cable, is coated with a semi-conductive layer on the surface, meets the requirement of semi-conductivity of an outer coating of a high-voltage cable in China, and is also beneficial to the operation safety of the cable and operation and maintenance personnel.
The technical scheme of the invention is as follows: the utility model provides a take semi-conductive fire-retardant band of taking for power cable, includes the area body, ribbon, the area body includes glass fiber cloth, fire-retardant layer of fire prevention, semi-conductive coating, the ribbon is non-magnetic metal material, equidistant setting at the external surface of area.
The scheme is further that the fireproof flame-retardant layer is coated on the inner surface of the glass fiber cloth, and the semi-conductive coating is coated on the outer surface of the glass fiber cloth.
The scheme is further that the fireproof flame-retardant layer is arranged in the middle, and the glass fiber cloth and the semi-conductive coating are sequentially arranged on two sides from inside to outside.
The scheme is further that the fireproof flame-retardant layer is composed of ceramic powder and a compounding agent.
Further, the mixture ratio of the ceramic powder to the compounding agent is 0.2: 1-0.7:1.
Further, the semiconductive coating is composed of a conductive base material and a compounding agent.
The scheme is further that the ratio of the conductive base material to the compounding agent is 0.2: 1-0.7:1.
Further, the compounding agent is liquid silica gel or acrylic emulsion.
Further, the conductive base material is conductive graphite or conductive carbon black.
Scheme further, the ribbon is a stainless steel ribbon.
A preparation method of a fireproof flame-retardant wrapping tape for a power cable with semi-conductivity comprises the following steps:
(1) spreading and spreading the glass fiber cloth by adopting a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth by using a coating machine to generate a fireproof flame-retardant layer;
(3) preparing powdery conductive base material and compounding agent according to the proportion to prepare the semiconductive coating paint, fully and uniformly stirring and mixing the conductive base material and the compounding agent by using a stirrer to form slurry, and uniformly blade-coating the opposite surfaces of the glass fiber cloth fireproof flame-retardant layer by using a coating machine to form a semiconductive coating;
(4) after the fireproof flame-retardant layers and the semi-conductive coatings on the front and back surfaces of the glass fiber cloth are manufactured, the belt bodies are longitudinally folded, adhered and compressed, or the fireproof flame-retardant layers of the two belt bodies are relatively adhered together and packaged in a roll.
A preparation method of a fireproof flame-retardant wrapping tape for a power cable with semi-conductivity comprises the following steps:
(1) spreading and spreading the glass fiber cloth by adopting a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth by using a coating machine to generate a fireproof flame-retardant layer;
(3) preparing a piece of glass fiber cloth and bonding the glass fiber cloth on one surface of the glass fiber cloth coated with the fireproof flame-retardant layer in the step (2);
(4) preparing a powdery conductive base material and a compounding agent according to a ratio to prepare a semiconductive coating paint, fully and uniformly stirring and mixing the conductive base material and the compounding agent into a slurry by using a stirrer, and uniformly forming a semiconductive coating on the surfaces of the opposite surfaces bonded by the glass fiber cloth in the step (3) by using an industrial dip dyeing machine;
(5) and after the manufacture is finished, packaging in a roll.
The invention has the advantages that:
1. the fireproof flame-retardant layer enables the fire resistance and the flame retardance of the product to be stronger, ensures that the belt body is complete and does not burn through, and effectively protects the internal cable;
2. the semi-conductive coating on the surface of the fireproof flame-retardant belt is in accordance with the semi-conductive requirement of the outer coating of the high-voltage cable in China, is beneficial to the operation safety of the cable and operation and maintenance personnel, and has excellent waterproof performance, salt resistance and acid and alkali resistance;
3. the black part in the semi-conductive coating can be beneficial to the load heat dissipation of the cable;
4. all components and materials of the invention do not contain halogen, and the invention ensures no toxicity and environmental protection at normal temperature and during combustion;
5. when the invention is used for wrapping construction, the bands are fixed at equal intervals and belong to non-magnetic metal materials, so that the eddy effect can be ignored, and flame delay can be effectively prevented.
Drawings
Fig. 1 is a schematic view of a belt structure according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a belt structure according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of the present invention wrapped around a cable;
wherein: 1. power cable, 2, the area body, 21, fire prevention fire-retardant layer, 22, glass fiber cloth, 23, semi-conductive coating, 3, ribbon.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
Example 1: as shown in fig. 1 and 3, the fireproof flame-retardant wrapping tape for the power cable with the semi-conductivity comprises a tape body 2 and a wrapping tape 3, wherein the tape body 2 comprises a glass fiber cloth 22, a fireproof flame-retardant layer 21 and a semi-conductive coating 23, and the wrapping tape 3 is made of a non-magnetic metal material and is arranged on the outer surface of the tape body 2 at equal intervals.
Further, the fireproof flame-retardant layer 21 is coated on the inner surface of the glass fiber cloth 22, and the semi-conductive coating 23 is coated on the outer surface of the glass fiber cloth 22.
Further, the fireproof flame-retardant layer 21 is composed of ceramic powder and a compounding agent.
Further, the mixture ratio of the ceramic powder to the compounding agent is 0.2: 1-0.7:1.
Further, the semiconductive coating layer 23 is composed of a conductive base material and a compounding agent.
Further, the ratio of the conductive base material to the compounding agent is 0.2: 1-0.7:1.
Further, the compounding agent is liquid silica gel or acrylic emulsion.
Further, the conductive base material is conductive graphite or conductive carbon black.
Further, the mass fraction of the ceramic powder is 42%, and the mass fraction of the acrylic emulsion is 58%.
Further, the mass fraction of the conductive graphite is 42%, and the mass fraction of the acrylic emulsion is 58%.
Further, the binding belt 3 is a stainless steel binding belt.
The method for manufacturing the intermediate belt in the embodiment comprises the following steps:
(1) spreading the glass fiber cloth 22 by a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer 21 coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth 22 by using a coating machine to generate a fireproof flame-retardant coating 21;
(3) preparing powdery conductive base material and compounding agent according to the proportion to prepare the semiconductive coating 23 paint, fully and uniformly stirring the conductive base material and the compounding agent by using a stirrer to be mixed into slurry, and uniformly blade-coating the opposite surfaces of the fireproof flame-retardant layer 21 of the glass fiber cloth 22 by using a coating machine to form the semiconductive coating 23;
(4) after the fireproof flame-retardant layer 21 and the semi-conductive coating 23 on the front and back surfaces of the glass fiber cloth 22 are manufactured, the belt body 2 is longitudinally folded, adhered and compressed, or the fireproof flame-retardant layers 21 of the two belt bodies 2 are relatively adhered together and packaged in a roll.
When the invention is used, the belt body 2 is wrapped on the outer surface of the power cable 1, the contact surface with the outer surface of the power cable 1 and the outer surface exposed in the air are both the semi-conductive coating 23, then the belt 3 is utilized to bind the belt body 2 at equal intervals according to the length of the power cable and fix the belt body, and the exposed black semi-conductive coating 23 can be beneficial to the load heat dissipation of the cable and is matched with the semi-conductive requirement of the outer coating of the high-voltage cable in China, thereby being beneficial to the operation safety of the cable and operation and maintenance personnel, and having good waterproof performance, salt resistance and acid and alkali resistance; the fireproof flame-retardant layer 21 enables the fireproof flame retardance of the product to be stronger, the completeness of the belt body 2 is guaranteed, the plastic ceramic is sintered into a shell at high temperature, and the internal cable is effectively protected.
Example 2: as shown in fig. 2 and 3, the fireproof flame-retardant wrapping tape for the power cable with the semi-conductivity comprises a tape body 2 and a wrapping tape 3, wherein the tape body 2 comprises a glass fiber cloth 22, a fireproof flame-retardant layer 21 and a semi-conductive coating 23, and the wrapping tape 3 is made of a non-magnetic metal material and is arranged on the outer surface of the tape body 2 at equal intervals.
Further, the fireproof flame-retardant layer 21 is arranged in the middle, and the glass fiber cloth 22 and the semi-conductive coating 23 are sequentially arranged on the two sides from inside to outside.
Further, the fireproof flame-retardant layer 21 is composed of ceramic powder and a compounding agent.
Further, the mixture ratio of the ceramic powder to the compounding agent is 0.2: 1-0.7:1.
Further, the semiconductive coating layer 23 is composed of a conductive base material and a compounding agent.
Further, the ratio of the conductive base material to the compounding agent is 0.2: 1-0.7:1.
Further, the compounding agent is liquid silica gel or acrylic emulsion.
Further, the conductive base material is conductive graphite or conductive carbon black.
Further, the binding band 3 is a stainless steel binding strip.
The tape preparation method of this embodiment includes:
(1) spreading the glass fiber cloth 22 by a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer 21 coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth 22 by using a coating machine to generate a fireproof flame-retardant layer 21;
(3) preparing a piece of glass fiber cloth 22 and bonding the glass fiber cloth 22 on one surface coated with the fireproof flame-retardant layer 21 in the step (2);
(4) preparing a powdery conductive base material and a compounding agent according to a ratio to prepare the semiconductive coating 23 paint, fully and uniformly stirring and mixing the conductive base material and the compounding agent into a slurry by using a stirrer, and uniformly forming the semiconductive coating 23 on the surface of the opposite surface bonded by the glass fiber cloth 22 in the step (3) by using an industrial dip dyeing machine;
(5) and after the manufacture is finished, packaging in a roll.
While the preferred embodiments of the invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. A fireproof flame-retardant wrapping tape for a power cable with a semi-conductivity is characterized by comprising a tape body and a wrapping tape, the band body comprises glass fiber cloth, a fireproof flame-retardant layer and a semi-conductive coating, the binding belt is made of a non-magnetic metal material and is bound on the surface of the wrapped band body at equal intervals during wrapping operation, the fireproof flame-retardant layer consists of ceramic powder and a compounding agent, the semi-conductive coating consists of a conductive base material and a compounding agent, the compounding agent is liquid silica gel or acrylic emulsion, the conductive base material is conductive graphite or conductive carbon black, the fireproof flame-retardant layer is arranged in the middle, the glass fiber cloth and the semi-conductive coating are sequentially arranged on the two sides from inside to outside, when in use, the belt body is wrapped on the outer surface of the power cable, the contact surface of the binding tape and the outer surface of the power cable exposed to the air are both semiconductive coatings, and the binding tape is a stainless steel binding tape.
2. The fire-retardant wrapping tape for the power cable with the semi-conductivity as claimed in claim 1, wherein the ratio of the ceramic powder to the compounding agent is 0.2: 1-0.7:1.
3. The fire-retardant tape according to claim 1, wherein the ratio of the conductive base material to the compounding agent is 0.2: 1-0.7:1.
4. The method for preparing the fireproof flame-retardant wrapping tape for the power cable with the semi-conductivity according to claim 1, which comprises the following steps:
(1) spreading and spreading the glass fiber cloth by adopting a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth by using a coating machine to generate a fireproof flame-retardant layer;
(3) preparing powdery conductive base material and compounding agent according to the proportion to prepare the semiconductive coating paint, fully and uniformly stirring and mixing the conductive base material and the compounding agent by using a stirrer to form slurry, and uniformly blade-coating the opposite surfaces of the glass fiber cloth fireproof flame-retardant layer by using a coating machine to form a semiconductive coating;
(4) after the fireproof flame-retardant layers and the semi-conductive coatings on the front and back surfaces of the glass fiber cloth are manufactured, the belt bodies are longitudinally folded, adhered and compressed, or the fireproof flame-retardant layers of the two belt bodies are relatively adhered together and packaged in a roll.
5. The method for preparing the fireproof flame-retardant wrapping tape for the power cable with the semi-conductivity according to claim 1, which comprises the following steps:
(1) spreading and spreading the glass fiber cloth by adopting a coating machine;
(2) preparing ceramic powder and a compounding agent according to a ratio to prepare a fireproof flame-retardant layer coating, mixing the ceramic powder and the compounding agent, fully and uniformly stirring the mixture by using a stirrer to obtain a slurry, and uniformly blade-coating the slurry on glass fiber cloth by using a coating machine to generate a fireproof flame-retardant layer;
(3) preparing a piece of glass fiber cloth and bonding the glass fiber cloth on one surface of the glass fiber cloth coated with the fireproof flame-retardant layer in the step (2);
(4) preparing a powdery conductive base material and a compounding agent according to a ratio to prepare a semiconductive coating paint, fully and uniformly stirring and mixing the conductive base material and the compounding agent into a slurry by using a stirrer, and uniformly forming a semiconductive coating on the surfaces of the opposite surfaces bonded by the glass fiber cloth in the step (3) by using an industrial dip dyeing machine;
(5) and after the manufacture is finished, packaging in a roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321492.7A CN110033895B (en) | 2019-04-22 | 2019-04-22 | Fireproof flame-retardant wrapping tape for power cable with semi-conductivity and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321492.7A CN110033895B (en) | 2019-04-22 | 2019-04-22 | Fireproof flame-retardant wrapping tape for power cable with semi-conductivity and preparation method |
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| Publication Number | Publication Date |
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| CN110033895A CN110033895A (en) | 2019-07-19 |
| CN110033895B true CN110033895B (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910321492.7A Active CN110033895B (en) | 2019-04-22 | 2019-04-22 | Fireproof flame-retardant wrapping tape for power cable with semi-conductivity and preparation method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635117B (en) * | 2020-12-08 | 2022-02-11 | 建业电缆集团有限公司 | Fire-blocking wrapping tape for manufacturing fire-blocking layer of fireproof cable and preparation method |
| CN113140365B (en) * | 2021-04-22 | 2023-03-14 | 上海克故消防设备有限公司 | Application of flame-retardant sleeve single-core electric wire in fireproof structure of electric car |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201247630Y (en) * | 2008-07-15 | 2009-05-27 | 俞飞 | Water-resistance flame-resistance belt for cable and optical cable |
| CN202258490U (en) * | 2011-09-29 | 2012-05-30 | 天津市金海岸科技发展有限公司 | Novel environmentally friendly high-strength fire-proof belting |
| CN205016288U (en) * | 2015-08-27 | 2016-02-03 | 扬州腾飞电缆电器材料有限公司 | High fire -retardant band of semiconduction and cable |
| CN207217170U (en) * | 2017-09-22 | 2018-04-10 | 长治清华机械厂 | A kind of cable in region of being overdoed for car launcher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6610411B2 (en) * | 2001-09-27 | 2003-08-26 | Lucent Technologies Inc. | Silicone gel tape for coax connector connection |
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2019
- 2019-04-22 CN CN201910321492.7A patent/CN110033895B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201247630Y (en) * | 2008-07-15 | 2009-05-27 | 俞飞 | Water-resistance flame-resistance belt for cable and optical cable |
| CN202258490U (en) * | 2011-09-29 | 2012-05-30 | 天津市金海岸科技发展有限公司 | Novel environmentally friendly high-strength fire-proof belting |
| CN205016288U (en) * | 2015-08-27 | 2016-02-03 | 扬州腾飞电缆电器材料有限公司 | High fire -retardant band of semiconduction and cable |
| CN207217170U (en) * | 2017-09-22 | 2018-04-10 | 长治清华机械厂 | A kind of cable in region of being overdoed for car launcher |
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| CN110033895A (en) | 2019-07-19 |
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