CN202549341U - High-fire-resistance and high-flame-retardant electric wire - Google Patents
High-fire-resistance and high-flame-retardant electric wire Download PDFInfo
- Publication number
- CN202549341U CN202549341U CN2012201212526U CN201220121252U CN202549341U CN 202549341 U CN202549341 U CN 202549341U CN 2012201212526 U CN2012201212526 U CN 2012201212526U CN 201220121252 U CN201220121252 U CN 201220121252U CN 202549341 U CN202549341 U CN 202549341U
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- fire
- electric wire
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- cable
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Abstract
The utility model discloses a high-fire-resistance and high-flame-retardant electric wire which comprises a plurality of conductors. Each conductor is provided with an insulating layer, a plurality of layers of mica tapes are lapped in an overlapped manner to form each insulating layer, the conductors are lapped via glass fiber tapes to form a lapped layer, a sheath is formed on the outside of the lapped layer by extrusion molding, and a glass fiber rope is arranged between each two adjacent conductors to be used as a filling layer. The high-fire-resistance and high-flame-retardant electric wire has effects of a fire-resistant layer and the insulating layers, can bear 3.5kV power-frequency alternating-current voltage without breakdown, is high in flame-retardant efficiency and can stably run at the high temperature of 200 DEG C for a long time. In addition, the high-fire-resistance and high-flame-retardant electric wire with the oxygen index of 86 can effectively prevent fire from spreading, and excellent flame-retardant efficiency is achieved.
Description
Technical field
The utility model relates to the electric wire field, specifically is a kind of high fire-resistant high flame-retardant electric wire and cable.
Background technology
Mostly the material of employing such as traditional cable such as power cable, control cable is materials such as polyvinyl chloride, polyolefin; Fire resistance is poor; Credit union is rapidly aging in the high-temperature field scraps until cable, and case of fire lower jacket, insulating material rapidly burning cause power breakdown to cause any property loss and threaten personal safety.
The utility model content
The purpose of the utility model provides a kind of high fire-resistant high flame-retardant electric wire and cable; Its structure is followed successively by conductor, mica tape lapped insulation layer, glass cord packed layer, glass fiber tape lapping layer and high flame retardant sheath from inside to outside; Improve the fire-retardant and resistance to elevated temperatures of electric wire; Make cable can be used in the high temperature occasion, and have high flame retardant and superior fire resistance, can in environment such as hot blast, high temperature particle, safely and steadily run.
The technical scheme of the utility model is following:
A kind of high fire-resistant high flame-retardant electric wire and cable; Include many conductors; It is characterized in that: every conductor is outer through the overlapping wrapped insulating barrier that is formed with of multi layer cloud master tape; Described many conductors are outer through the wrapped lapping layer that is formed with of glass fiber tape, and described lapping layer is outer to be formed with sheath through extrusion molding, is provided with glass cord as packed layer between adjacent two conductors.
The fire-resistant high flame-retardant electric wire and cable of described height is characterized in that: described many conductors are the copper core.
The fire-resistant high flame-retardant electric wire and cable of described height is characterized in that: in the described insulating barrier, the Duplication of multilayer mica is not less than 25%.
The fire-resistant high flame-retardant electric wire and cable of described height; It is characterized in that: in the described lapping layer, the lapping direction of glass fiber twining package tape is a left-hand, and employing is put up wrapped; Its size of putting up is the 10%-15% of glass fiber twining package tape width, and wrapping angle is 25-40 °.
The fire-resistant high flame-retardant electric wire and cable of described height is characterized in that: described sheath employing oxygen index is 86 polyfluorinated ethylene plastic extrusion moulding.
The beneficial effect of the utility model:
The insulating barrier of the utility model is overlapping wrapped the forming of multilayer A level refractory synthetic mica tape, has the double action of flame retardant coating and insulating barrier, can stand the 3.5kV power frequency ac voltage and does not puncture; The use of glass cord packed layer and glass fiber twining package tape has increased the flame retardant effect of cable; It is 86 perfluoroethylene-propylene insulating material that sheath adopts oxygen index, makes the operation that cable is can be under 200 ℃ of high temperature steady in a long-term, and has the very effective prevention fire spreading of cable ability of 86 oxygen index, has reached remarkable flame retardant effect.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1; A kind of high fire-resistant high flame-retardant electric wire and cable; Include three conductors 1, every conductor is outer through overlapping wrapped being formed with outside 2, three conductors of insulating barrier 1 through the wrapped lapping layer 4 that is formed with of glass fiber tape of multi layer cloud master tape; Be formed with sheath 5 through extrusion molding outside the lapping layer 4, be provided with glass cord as packed layer 3 between adjacent two conductors.
Three conductors 1 are the copper core; In the insulating barrier 2, the Duplication of multilayer mica is not less than 25%; In the lapping layer 4, the lapping direction of glass fiber twining package tape is a left-hand, and adopts and to put up wrappedly, and its size of putting up is the 10%-15% of glass fiber twining package tape width, and wrapping angle is 25-40 °; Sheath 5 employing oxygen indexs are 86 polyfluorinated ethylene plastic extrusion moulding.
The manufacture craft of the utility model is following:
Combine the actual conditions conductor to adopt suitable conductor according to the GB/T3956 regulation, according to the conductor of standard application certain specification, and the radical of definite single line.Will be drawn into required specification to copper cash according to above-mentioned, wire drawing is carried out on wire drawing machine and conductor is annealed, and the single line surface should smooth, no greasy dirt, cut etc.Insulating barrier adopts overlapping wrapped the forming of synthetic mica tape of multiple layer refractory A level, and Duplication is not less than 25%, stops quality problems such as mica tape fold, bottom pour ladle, breakage, scratch.Select suitable cabler to carry out stranding, the direction of stranding is a dextrad.The stranding lay ratio will comply with relevant regulations, and the speed of each parts also will be followed the pertinent regulations of operation card.Packed layer adopts glass fiber that the space of stranding is filled up, and keeps the rounding property of cable.The direction of glass fiber twining package tape is a left-hand, and employing is put up wrapped, puts up size and is that the 10%-15% of twining package tape width, wrapping angle are 25 °-40 °.Sheath employing oxygen index is 86 polyfluorinated ethylene plastic; Can on high temperature extruder (L/D >=20), extrude; Extrude and will carry out according to operation card, the speed of the working temperature of plastic extruding machine various piece, the rotating speed of screw rod, traction is up to specification, with reference to the suitable mould of the size Selection of core; Can not be eccentric during unwrapping wire, each parts are wanted co-ordination.Stop jacket surface problems such as bubble, flake, fold are arranged.
Claims (5)
1. one kind high fire-resistant high flame-retardant electric wire and cable; Include many conductors; It is characterized in that: every conductor is outer through the overlapping wrapped insulating barrier that is formed with of multi layer cloud master tape; Described many conductors are outer through the wrapped lapping layer that is formed with of glass fiber tape, and described lapping layer is outer to be formed with sheath through extrusion molding, is provided with glass cord as packed layer between adjacent two conductors.
2. the fire-resistant high flame-retardant electric wire and cable of height according to claim 1 is characterized in that: described many conductors are the copper core.
3. the fire-resistant high flame-retardant electric wire and cable of height according to claim 1 is characterized in that: in the described insulating barrier, the Duplication of multilayer mica is not less than 25%.
4. the fire-resistant high flame-retardant electric wire and cable of height according to claim 1; It is characterized in that: in the described lapping layer, the lapping direction of glass fiber twining package tape is a left-hand, and employing is put up wrapped; Its size of putting up is the 10%-15% of glass fiber twining package tape width, and wrapping angle is 25-40 °.
5. the fire-resistant high flame-retardant electric wire and cable of height according to claim 1 is characterized in that: described sheath employing oxygen index is 86 polyfluorinated ethylene plastic extrusion moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201212526U CN202549341U (en) | 2012-03-28 | 2012-03-28 | High-fire-resistance and high-flame-retardant electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201212526U CN202549341U (en) | 2012-03-28 | 2012-03-28 | High-fire-resistance and high-flame-retardant electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549341U true CN202549341U (en) | 2012-11-21 |
Family
ID=47169934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201212526U Expired - Lifetime CN202549341U (en) | 2012-03-28 | 2012-03-28 | High-fire-resistance and high-flame-retardant electric wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413597A (en) * | 2013-08-19 | 2013-11-27 | 宝胜科技创新股份有限公司 | Aerospace high-temperature wire and production technology thereof |
| CN112201402A (en) * | 2020-09-28 | 2021-01-08 | 安徽太平洋电缆股份有限公司 | High-safety low-release halogen-free low-smoke B1-grade fire-resistant cable |
-
2012
- 2012-03-28 CN CN2012201212526U patent/CN202549341U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413597A (en) * | 2013-08-19 | 2013-11-27 | 宝胜科技创新股份有限公司 | Aerospace high-temperature wire and production technology thereof |
| CN103413597B (en) * | 2013-08-19 | 2015-12-23 | 宝胜科技创新股份有限公司 | Aerospace high-temperature wire and production technology thereof |
| CN112201402A (en) * | 2020-09-28 | 2021-01-08 | 安徽太平洋电缆股份有限公司 | High-safety low-release halogen-free low-smoke B1-grade fire-resistant cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |