CN203013387U - Flame-retardant high-temperature-resistant frequency-conversion power cable - Google Patents
Flame-retardant high-temperature-resistant frequency-conversion power cable Download PDFInfo
- Publication number
- CN203013387U CN203013387U CN 201220577714 CN201220577714U CN203013387U CN 203013387 U CN203013387 U CN 203013387U CN 201220577714 CN201220577714 CN 201220577714 CN 201220577714 U CN201220577714 U CN 201220577714U CN 203013387 U CN203013387 U CN 203013387U
- Authority
- CN
- China
- Prior art keywords
- line alloy
- flame
- main line
- power cable
- conductors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flame-retardant high-temperature-resistant frequency-conversion power cable. The cable comprises a plurality of main line alloy conductors and a plurality of zero line alloy conductors, wherein the plurality of main line alloy conductors and the plurality of zero line alloy conductors are internally provided with elastic ropes respectively; each main line alloy conductor and each zero line alloy conductor are both coated by a polyperfluorinated ethylene propylene insulating layer by extrusion moulding; the plurality of main line alloy conductors are distributed in a triangular shape, and the zero line alloy conductor is arranged between two adjacent main line alloy conductors, forming a cable core; and the cable core is sequentially coated by a glass fiber tape wrapping flame-retardant layer, a shield layer, and a polyperfluorinated ethylene propylene sheath layer. According to the utility model, the flame-retardant high temperature-resistant frequency-conversion power cable is novel in structural design; the main lines and the zero lines both adopt alloy conductors which are provided with the elastic ropes at the centers respectively, so that the strength and tension toughness of the conductors are greatly improved; and the insulating layer and the sheath layer adopt polyperfluorinated ethylene propylene, so that fire can be effectively prevented from spreading, the flame-retardant property of the power cable is improved, and the power cable is guaranteed to safely and stably operate under environments of hot wind, high-temperature particles and the like.
Description
Technical field
The utility model relates to electric wire field, specifically a kind of flame-retardant high-temperature-resistant frequency-conversion power cable.
Background technology
Frequency-changing cable is mainly used in the connection between variable frequency power supply and variable-frequency motor.It has a series of advantage, as: the low transmission impedance, Electro Magnetic Compatibility is good, low mutual capacitance, good anti-interference and low radiance etc.
Traditional frequency conversion cable insulation and sheath material are polyvinyl chloride or cross-linked polyolefin, and fire resistance and tensile core can be poor, and high-temperature field credit union rapidly aging until cable scrap, can not be used for the high temperature occasion as melting the occasion such as iron furnace.
The utility model content
The purpose of this utility model is to provide a kind of flame-retardant high-temperature-resistant frequency-conversion power cable, and novel structure makes cable can be used in the high temperature occasion, and has high flame retardant, tensile property, can safely and steadily run in the environment such as hot blast, high-temperature particle.
The technical solution of the utility model is as follows:
the flame-retardant high-temperature-resistant frequency-conversion power cable, it is characterized in that: include many main line alloy conductors and Duo Gen zero line alloy conductor, be provided with respectively elastic threads in many main line alloy conductors and Duo Gen zero line alloy conductor, every main line alloy conductor and zero line alloy conductor are formed with the perfluoroethylene-propylene insulating barrier by extrusion molding outward respectively, many main line alloy conductors distribute in a triangle, wherein be provided with the zero line alloy conductor between two adjacent main line alloy conductors and consist of cable core, the cable core outside is provided with the flame-retardant layer of the wrapped formation of glass fiber tape successively, screen, the perfluoroethylene-propylene restrictive coating.
Described flame-retardant high-temperature-resistant frequency-conversion power cable, it is characterized in that: in described flame-retardant layer, the lapping direction of glass fibre twining package tape is left-hand, and employing is put up wrapped, its size of putting up is the 16%-17% of glass fibre twining package tape width, and wrapping angle is 25-40 °.
Described flame-retardant high-temperature-resistant frequency-conversion power cable is characterized in that: the zero line alloy conductor both sides in described flame-retardant layer are provided with the packed layer that glass cord consists of.
The beneficial effects of the utility model:
The utility model structural design is novel, main line and zero line all adopt alloy conductor and place elastic threads in the center, intensity and the tensile toughness of conductor have greatly been improved, insulating barrier, restrictive coating adopt perfluoroethylene-propylene, the very effective prevention fire spreading of energy, improve fire resistance, guarantee to safely and steadily run in the environment such as hot blast, high-temperature particle.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
referring to Fig. 1, the flame-retardant high-temperature-resistant frequency-conversion power cable, include many main line alloy conductors 1 and Duo Gen zero line alloy conductor 2, be provided with respectively elastic threads 3 in many main line alloy conductors 1 and Duo Gen zero line alloy conductor 2, every main line alloy conductor and zero line alloy conductor are formed with perfluoroethylene-propylene insulating barrier 4 by extrusion molding outward respectively, many main line alloy conductors 1 distribute in a triangle, wherein be provided with the zero line alloy conductor between two adjacent main line alloy conductors and consist of cable core, the cable core outside is provided with the flame-retardant layer 5 of the wrapped formation of glass fiber tape successively, screen 6, perfluoroethylene-propylene restrictive coating 7.
In flame-retardant layer 5, the lapping direction of glass fibre twining package tape is left-hand, and adopts and to put up wrappedly, and its size of putting up is the 16%-17% of glass fibre twining package tape width, and wrapping angle is 25-40 °.
Zero line alloy conductor both sides in flame-retardant layer 5 are provided with the packed layer 8 that glass cord consists of.
Screen 6 can adopt aluminium-plastic tape overlapping wrapped, and the wrapped rate of putting up is not less than 40%, and energy homogenizing electric field plays a good protection to frequency conversion electrical equipment.
Perfluoroethylene-propylene insulating barrier 4, perfluoroethylene-propylene restrictive coating 7 adopts oxygen indexs to be not less than 86 perfluoroethylene-propylene, and breakdown strength is high, operation can be under 200 ℃ of high temperature steady in a long-term.
Claims (3)
1. flame-retardant high-temperature-resistant frequency-conversion power cable, it is characterized in that: include many main line alloy conductors and Duo Gen zero line alloy conductor, be provided with respectively elastic threads in many main line alloy conductors and Duo Gen zero line alloy conductor, every main line alloy conductor and zero line alloy conductor are formed with the perfluoroethylene-propylene insulating barrier by extrusion molding outward respectively, many main line alloy conductors distribute in a triangle, wherein be provided with the zero line alloy conductor between two adjacent main line alloy conductors and consist of cable core, the cable core outside is provided with the flame-retardant layer of the wrapped formation of glass fiber tape successively, screen, the perfluoroethylene-propylene restrictive coating.
2. flame-retardant high-temperature-resistant frequency-conversion power cable according to claim 1, it is characterized in that: in described flame-retardant layer, the lapping direction of glass fibre twining package tape is left-hand, and employing is put up wrapped, its size of putting up is the 16%-17% of glass fibre twining package tape width, and wrapping angle is 25-40 °.
3. flame-retardant high-temperature-resistant frequency-conversion power cable according to claim 1 is characterized in that: the zero line alloy conductor both sides in described flame-retardant layer are provided with the packed layer that glass cord consists of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577714 CN203013387U (en) | 2012-11-05 | 2012-11-05 | Flame-retardant high-temperature-resistant frequency-conversion power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577714 CN203013387U (en) | 2012-11-05 | 2012-11-05 | Flame-retardant high-temperature-resistant frequency-conversion power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203013387U true CN203013387U (en) | 2013-06-19 |
Family
ID=48604954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577714 Expired - Fee Related CN203013387U (en) | 2012-11-05 | 2012-11-05 | Flame-retardant high-temperature-resistant frequency-conversion power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203013387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070386A (en) * | 2015-08-07 | 2015-11-18 | 江苏远方电缆厂有限公司 | Reinforced anti-extrusion variable frequency cable |
-
2012
- 2012-11-05 CN CN 201220577714 patent/CN203013387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070386A (en) * | 2015-08-07 | 2015-11-18 | 江苏远方电缆厂有限公司 | Reinforced anti-extrusion variable frequency cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131105 |