CN203644461U - Aluminium alloy fire-retardant frequency variable cable - Google Patents
Aluminium alloy fire-retardant frequency variable cable Download PDFInfo
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- CN203644461U CN203644461U CN201320795097.0U CN201320795097U CN203644461U CN 203644461 U CN203644461 U CN 203644461U CN 201320795097 U CN201320795097 U CN 201320795097U CN 203644461 U CN203644461 U CN 203644461U
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Abstract
The utility model discloses an aluminium alloy fire-retardant frequency variable cable. The aluminium alloy fire-retardant frequency variable cable comprises power wire cores, ground wire cores, a flame-retardant glass fiber rope filling layer, a glass fiber belting layer, a shielding layer, and an external sheath layer, wherein the power wire cores and the ground wire cores are formed in such a way that aluminium alloy conductors are squeezed and wrapped from outside to inside by an insulation layer and a fire-retardant layer; the three power wire cores and the three ground wire cores are stranded alternately to form a cable core; intervals of the cable core are filled with the flame-retardant glass fiber rope filling layer, and the glass fiber belting layer is disposed outside the cable core; and the glass fiber belting layer is wrapped by the external sheath layer and the shielding layer from outside to inside in sequence. The aluminium alloy fire-retardant frequency variable cable has advantages of being simple in structure design, being stable in performance, being capable of fulfilling performance requirements of fire-retardant frequency variable cables, being easy to lay due to the flexibility of the cable, being capable of reducing electromagnetic radiation of a transmission system, and being capable of inhibiting electromagnetic of internal and external interferences .
Description
Technical field
The utility model relates to cable, relates in particular to aluminium alloy fire-proof frequency conversion cable.
Background technology
Along with the development of frequency drive technology processed, requirement to frequency variable ratio drive system is more and more higher, especially to adopting the modern converter technique of IGBT semiconductor of quick switching, although pulse frequency is high or more they generate an electromagnetic field to surrounding environment only in millisecond the break time.For keeping frequency converter normal work not to be subject to electromagnetic interference, therefore connect cable between frequency converter and three phase alternating current motor and will there is interference free performance, lower effective capacitance and lower transfer impedance.
Utility model content
For overcoming above-mentioned deficiency, the utility model object is to provide aluminium alloy fire-proof frequency conversion cable.
Scheme of the present utility model is as follows: aluminium alloy fire-proof frequency conversion cable, it by power core, wire core, flame-proof glass fibre rope packed layer, glass fibre belt lapping layer, screen and external sheath layer form, described power core and ground wire core be all by insulating barrier, flame retardant coating from extruding outside to inside, wrappedly on aluminium alloy stranded conductor, form; Described three power cores and wire core interval, three ground are twisted into cable core; Described cable core gap is provided with flame-proof glass fibre rope packed layer, and cable core is provided with glass fibre belt lapping layer outward; Described external sheath layer and screen cover on glass fibre belt lapping layer successively from outside to inside.
Described screen adopts proof copper-wire braided and copper strips is wrapped combines.
Described insulating barrier adopts flame-retardant crosslinking polyethylene material.
Described external sheath layer adopts flame-proof polyvinyl chloride material.
The beneficial effects of the utility model: the utility model structural design is simple, stable performance, can meet the performance requirement of fire-proof frequency conversion cable, and cable softness is easy to lay, can reduce the electromagnetic radiation of drive system, effectively suppress the electromagnetic interference on inside and outside boundary.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Wherein: 1, power core; 2, aluminium alloy stranded conductor; 3, flame retardant coating; 4, insulating barrier; 5, wire core; 6, flame-proof glass fibre rope packed layer; 7, glass fibre belt lapping layer; 8, screen; 9, external sheath layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further;
As shown in Figure 1, aluminium alloy fire-proof frequency conversion cable, it by power core 1, wire core 5, flame-proof glass fibre rope packed layer 6, glass fibre belt lapping layer 7, screen 8 and external sheath layer 9 form, described power core 1 and ground wire core 5 be all by insulating barrier 4, flame retardant coating 3 from extruding outside to inside, wrappedly on aluminium alloy stranded conductor, 2 form; Described three power cores 1 and wire core 5 intervals, three ground are twisted into cable core; Described cable core gap is provided with flame-proof glass fibre rope packed layer 6, and cable core is provided with glass fibre belt lapping layer 7 outward; Described external sheath layer 9 and screen 8 cover on glass fibre belt lapping layer 7 successively from outside to inside.
Described screen 8 adopts proof copper-wire braided and copper strips is wrapped combines.
Described insulating barrier 4 adopts flame-retardant crosslinking polyethylene material.
Described external sheath layer 9 adopts flame-proof polyvinyl chloride material.
The conductor of power core 1 and ground wire core 5 forms by aluminium alloy conductor is stranded, makes the bending radius of cable more much smaller than copper core cable, more easily lays, and external sheath layer 9 adopts flame-proof polyvinyl chloride material, and cable is played a protective role, heat insulation, oxygen barrier effect.
Although above embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present utility model and change and amendment; when its function producing does not exceed spiritual that specification contains yet, all should be within protection range of the present utility model.
Claims (4)
1. aluminium alloy fire-proof frequency conversion cable, it by power core, wire core, flame-proof glass fibre rope packed layer, glass fibre belt lapping layer, screen and external sheath layer form, it is characterized in that: described power core and ground wire core be all by insulating barrier, flame retardant coating from extruding outside to inside, wrappedly on aluminium alloy stranded conductor, form; Three power cores and wire core interval, three ground are twisted into cable core; Described cable core gap is provided with flame-proof glass fibre rope packed layer, and cable core is provided with glass fibre belt lapping layer outward; Described external sheath layer and screen cover on glass fibre belt lapping layer successively from outside to inside.
2. aluminium alloy fire-proof frequency conversion cable according to claim 1, is characterized in that: described screen adopts proof copper-wire braided and copper strips is wrapped combines.
3. aluminium alloy fire-proof frequency conversion cable according to claim 1, is characterized in that: described insulating barrier adopts flame-retardant crosslinking polyethylene material.
4. aluminium alloy fire-proof frequency conversion cable according to claim 1, is characterized in that: described external sheath layer adopts flame-proof polyvinyl chloride material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795097.0U CN203644461U (en) | 2013-12-06 | 2013-12-06 | Aluminium alloy fire-retardant frequency variable cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795097.0U CN203644461U (en) | 2013-12-06 | 2013-12-06 | Aluminium alloy fire-retardant frequency variable cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644461U true CN203644461U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320795097.0U Expired - Fee Related CN203644461U (en) | 2013-12-06 | 2013-12-06 | Aluminium alloy fire-retardant frequency variable cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616807A (en) * | 2015-01-22 | 2015-05-13 | 安徽凌宇电缆科技有限公司 | Low-smoke zero-halogen reinforced waterproof flexible fire-proof cable |
-
2013
- 2013-12-06 CN CN201320795097.0U patent/CN203644461U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616807A (en) * | 2015-01-22 | 2015-05-13 | 安徽凌宇电缆科技有限公司 | Low-smoke zero-halogen reinforced waterproof flexible fire-proof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20201206 |