CN203192525U - Fire-proof flame-retardant variable frequency cable - Google Patents
Fire-proof flame-retardant variable frequency cable Download PDFInfo
- Publication number
- CN203192525U CN203192525U CN 201320117642 CN201320117642U CN203192525U CN 203192525 U CN203192525 U CN 203192525U CN 201320117642 CN201320117642 CN 201320117642 CN 201320117642 U CN201320117642 U CN 201320117642U CN 203192525 U CN203192525 U CN 203192525U
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- core conductors
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- retardant
- flame
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Abstract
The utility model discloses a fire-proof flame-retardant variable frequency cable, comprising three main wire core conductors and three auxiliary wire core conductors. Each of the three main wire core conductors and the three auxiliary wire core conductors is externally wrapped with a crosslinking polyethylene insulating layer. The crosslinking polyethylene insulating layers of the three main wire core conductors and the three auxiliary wire core conductors are externally commonly wrapped with a low-smoke halogen-free flame-retardant tape wrapping layer. The low-smoke halogen-free flame-retardant tape wrapping layer is externally sequentially wrapped with a metal shielding layer, an armor layer braided from galvanized steel wires, and a silicone rubber sheath layer. A fire-proof layer is additionally arranged between the metal shielding layer and the armor layer braided from the galvanized steel wires. The fire-proof flame-retardant variable frequency cable has a simple structure and is provided with the low-smoke halogen-free flame-retardant tape wrapping layer and the fire-proof layer, so that the flame-retardant fire-proof properties are enhanced and the transmission performance of the cable is improved integrally.
Description
Technical field
The utility model relates to a kind of cable, mainly is a kind of frequency-changing cable of fire resistant flame retardant.
Background technology
Be accompanied by Chinese wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.China's economic growth continuously and healthily simultaneously, for cable products provides the huge market space, the temptation that Chinese market is strong, make the world all focus on Chinese market to sight, reforming and opening up to the outside world short decades, the formed huge production capacity of Chinese cable manufacturing industry allows the world regard with special esteem.Along with the continuous expansion of industry sizes such as China Power industry, data communication industry, urban track traffic industry, car industry and shipbuilding, also will increase rapidly the demand of electric wire, following electric wire already also has huge development potentiality
Frequency-changing cable is mainly used between variable frequency power supply and the variable-frequency motor connecting the cable of usefulness, and in rated voltage 1KV and the following electric line, makes transmission of electric energy and use.Be particularly useful for industries such as papermaking, metallurgy, weaving, metal processing, mine, railway and food processing.Existing frequency-changing cable is short of aspect the flame-retardant characteristic, thereby need be paid attention to.
The utility model content
Technical problem to be solved in the utility model provides a kind of frequency-changing cable of fire resistant flame retardant, and it is simple in structure, is provided with low-smoke non-halogen flame-retardant band lapping layer and flame retardant coating, has improved the characteristic of flame-retardant, and integral body has improved the transmission performance of cable.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of frequency-changing cable, include three master core conductors and three by-pass core conductors, it is characterized in that: described three master core conductors, three by-pass core conductors are coated with crosslinked polyetylene insulated layer outward respectively, be coated with low-smoke non-halogen flame-retardant band lapping layer jointly outside the crosslinked polyetylene insulated layer of three master core conductors, three by-pass core conductors, described low-smoke non-halogen flame-retardant band lapping layer is coated with armour and the silicone rubber jacket layer of metal screen layer, zinc-coated wire braiding outward successively; Have additional one deck flame retardant coating between the armour of described metal screen layer and zinc-coated wire braiding.
Described flame retardant coating is ceramic silicon rubber flame retardant coating.
The core of cable adopts 3+3 core structure in the utility model, makes cable have stronger proof voltage impact, and the pulse voltage in the time of standing at a high speed frequently frequency conversion plays a good protection to frequency conversion electrical equipment.
Outside conductor, use in the utility model crosslinked polyetylene insulated because the heatproof good weatherability of crosslinked polyethylene; And have the low transmission impedance, Electro Magnetic Compatibility is good, and good anti-interference and low radiance is arranged.
The utility model has the advantages that:
The utility model is simple in structure, is provided with low-smoke non-halogen flame-retardant band lapping layer and flame retardant coating, has improved the characteristic of flame-retardant, and integral body has improved the transmission performance of cable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to Fig. 1, a kind of frequency-changing cable, include three master core conductors 1 and three by-pass core conductors 2, be coated with crosslinked polyetylene insulated layer 3 respectively outside described three master core conductors 1, three by-pass core conductors 2, outside the crosslinked polyetylene insulated layer 3 of three master core conductors 1, three by-pass core conductors 2, be coated with low-smoke non-halogen flame-retardant band lapping layer 4 jointly, described low-smoke non-halogen flame-retardant band lapping layer 4 outer armour 6 and the silicone rubber jacket layers 7 that are coated with metal screen layer 5, zinc-coated wire braiding successively; Have additional one deck flame retardant coating 8 between the armour 6 of described metal screen layer 5 and zinc-coated wire braiding.
Described flame retardant coating 8 is ceramic silicon rubber flame retardant coating.
Claims (2)
1. the frequency-changing cable of a fire resistant flame retardant, include three master core conductors and three by-pass core conductors, it is characterized in that: described three master core conductors, three by-pass core conductors are coated with crosslinked polyetylene insulated layer outward respectively, be coated with low-smoke non-halogen flame-retardant band lapping layer jointly outside the crosslinked polyetylene insulated layer of three master core conductors, three by-pass core conductors, described low-smoke non-halogen flame-retardant band lapping layer is coated with armour and the silicone rubber jacket layer of metal screen layer, zinc-coated wire braiding outward successively; Have additional one deck flame retardant coating between the armour of described metal screen layer and zinc-coated wire braiding.
2. the frequency-changing cable of a kind of fire resistant flame retardant according to claim 1, it is characterized in that: described flame retardant coating is ceramic silicon rubber flame retardant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117642 CN203192525U (en) | 2013-03-15 | 2013-03-15 | Fire-proof flame-retardant variable frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117642 CN203192525U (en) | 2013-03-15 | 2013-03-15 | Fire-proof flame-retardant variable frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192525U true CN203192525U (en) | 2013-09-11 |
Family
ID=49109364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320117642 Expired - Fee Related CN203192525U (en) | 2013-03-15 | 2013-03-15 | Fire-proof flame-retardant variable frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943224A (en) * | 2014-03-28 | 2014-07-23 | 安徽长风电缆集团有限公司 | Anti-corrosion, fire-resistant and stretching-resistant insulated cable |
-
2013
- 2013-03-15 CN CN 201320117642 patent/CN203192525U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943224A (en) * | 2014-03-28 | 2014-07-23 | 安徽长风电缆集团有限公司 | Anti-corrosion, fire-resistant and stretching-resistant insulated 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 |
Granted publication date: 20130911 Termination date: 20160315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |