CN201402665Y - Medium-and-high voltage fire-proof cable - Google Patents
Medium-and-high voltage fire-proof cable Download PDFInfo
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- CN201402665Y CN201402665Y CN2009200806455U CN200920080645U CN201402665Y CN 201402665 Y CN201402665 Y CN 201402665Y CN 2009200806455 U CN2009200806455 U CN 2009200806455U CN 200920080645 U CN200920080645 U CN 200920080645U CN 201402665 Y CN201402665 Y CN 201402665Y
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Abstract
The utility model discloses a medium-and-high voltage fire-proof cable, which aims at providing a special medium-and-high voltage fire-proof cable with superior electrical performance and sound fire-proof property. A micaceous tape, a belting, an inflaming retarding silicon rubber layer, a longitudinal aluminium alloy belting and a sheath are cladded outside a wire core of the cable in sequence; and filling material is arranged between the wire core and the micaceous tape. The cable is especially suitable for the places relating to fireproof safety and fire fighting and life saving as high-rise buildings, subways, underground streets, large-sized power stations and important industrial, mining enterprises and the like, and can continue to securely operate for 90 minutes under the flame combustion.
Description
Technical field
The utility model relates to a kind of medium and high voltage cable, particularly relates to a kind of mesohigh fire-resisting cable.
Background technology
The common use at voltage 1KV and following fire-resisting cable, the fireproof construction of employing are the modes that directly wrapped mica tape and employing copper core copper sheath magnesium oxide insulate outside conductor.And 6KV and above medium and high voltage cable, because high voltage withstanding specific (special) requirements, between conductor and the insulation semiconductive shielding layer must be arranged, to reach the effect of uniform electric field, and insulation and inside and outside semi-conductive screen, be with a kind of polymer base material with insulation, and be one time three multiple layer coextrusion mold all, the utmost point does not bear high temperature.Therefore, above-mentioned fireproof construction does not reach 6KV and the fire-resistant requirement of above high-tension cable.
Chinese patent discloses a kind of " mesohigh fire-resisting cable " (publication number CN200979814), this utility model mainly relates to a kind of 6KV and above mesohigh fire-resisting cable, the composite fire layer is arranged between the cable core of this cable and oversheath, and this composite fire layer is coated the retaining fire bed and is formed by thermal insulation layer, inorganic expansion cooling layer, metal tape from inside to outside.This patent has overcome the deficiency of conventional low fire-resisting cable, but owing to this cable lacks flame-retardant filler and do not adopt mica tape cooling protection material between cable core and composite fire layer, thereby fire resistance is not ideal enough.、
The utility model content
Technical assignment of the present utility model is at above weak point, and a kind of extraordinary mesohigh fire-resisting cable with good electric property and good fire-resistance property is provided.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of mesohigh fire-resisting cable is characterized in that: core is coated with mica tape, band, flame-proof silicon rubber layer, vertical alclad alloy band and sheath outward successively; Between core and mica tape, flame-retardant filler is set.
Sheath is the low-smoke halogen-free polyolefin layer.
Core is surrounded with two-layer mica tape outward.
The utility model compared with prior art has the following advantages:
1, the utility model is owing to adopted mica tape, further between core and mica tape, have can be fire-retardant inserts cooling, therefore can reduce the temperature of core heating, if flame combustion is to this one deck, mica tape is met the fire back and is generated insoluble hard housing, make insulated wire cores not be subjected to the flame influence, can continue safe transmission of electricity within a certain period of time.
2, the utility model has been owing to adopted vertical alclad alloy band as the shelves fire bed, can prevent that flame from directly roasting inner layer material.
This extraordinary medium and high voltage cable has solved the contradiction between medium and high voltage cable electric property and the fire-resistance property.This cable not only has good electric property, and has good fire-resistance property.
Be particularly suitable for skyscraper, underground railway, undergrond street, large-scale power station and the important places relevant such as industrial and mining enterprises with fire safety and fire-extinguishing and lifesaving, for example, fire-fighting equipment and urgent supply line to emergency services such as leading lights.The safe operation that under the flame combustion situation, can keep 90 minutes.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the cross section structure schematic diagram of mesohigh fire-resisting cable.
Embodiment
With reference to Figure of description mesohigh fire-resisting cable of the present utility model is done following detailed explanation.
Embodiment 1
A kind of mesohigh fire-resisting cable, by core, mica tape 7, nonwoven layer 8, flame-proof silicon rubber extrude 9, the low-smoke halogen-free polyolefin layer 11 of vertical alclad alloy band 10 and oxygen index 〉=38% forms, is coated with the low-smoke halogen-free polyolefin layer 11 that mica tape 7, nonwoven layer 8, flame-proof silicon rubber extrude 9, indulge alclad alloy band 10 and oxygen index 〉=38% outside core successively; At core and 7 of mica tapes flame-retardant filler 6 is set.
The outer wrapped mica tape of double-layer overlapping of core.Nonwoven layer 8 outer one deck flame-proof silicon rubber layers that extrude.Flame-proof silicon rubber layer 9 outer vertical bag one deck aluminum alloy strip 10.The aluminum alloy strip 10 outer low-smoke halogen-free polyolefin layers 11 that extrude one deck oxygen index 〉=38%.
7 is mica tape cooling protection material, if flame combustion to this one deck, generates insoluble molten hard housing behind the mica tape chance fire, making insulated wire cores not be subjected to flame influences, and can continue safe transmission of electricity within a certain period of time.9 is the flame-proof silicon rubber material, as heat insulation layer.10 are vertical alclad metal band retaining fire bed, prevent that flame from directly roasting inner layer material.
A kind of mesohigh fire-resisting cable, 8.7/10 kilovolt of rated voltage, by 3 cores, the wrapped mica tape 7 of double-layer overlapping, the wrapped nonwoven layer 8 of double-layer overlapping, flame-proof silicon rubber extrude 9, vertical alclad alloy band 10 and low-smoke halogen-free polyolefin layer 11 form, outside core, be coated with mica tape 7, nonwoven layer 8, flame-proof silicon rubber successively and extrude 9, indulge alclad alloy band 10 and low-smoke halogen-free polyolefin layer 11; At core and 7 of mica tapes flame-retardant filler 6 is set.
Core is surrounded with 2 stratus master tapes outward.Nonwoven layer 8 outer one deck flame-proof silicon rubber layers that extrude.Flame-proof silicon rubber layer 9 outer vertical bag one deck aluminum alloy strip 10.The aluminum alloy strip 10 outer low-smoke halogen-free polyolefin layers 11 that extrude one deck oxygen index 〉=38%.
Embodiment 3
A kind of mesohigh fire-resisting cable, by core, the wrapped mica tape 7 of double-layer overlapping, the wrapped nonwoven layer 8 of double-layer overlapping, flame-proof silicon rubber extrude 9, vertical alclad alloy band 10 and low-smoke halogen-free polyolefin layer 11 form, outside core, be coated with mica tape 7, nonwoven layer 8, flame-proof silicon rubber successively and extrude 9, indulge alclad alloy band 10 and low-smoke halogen-free polyolefin layer 11; At core and 7 of mica tapes flame-retardant filler 6 is set.
Wherein core is made up of stranded compact conductor layer 1, conductor shield 2, crosslinked polyetylene insulated layer 3, insulation screen 4 and metal screen layer 5, and metal screen layer 5 adopts the individual layer copper strips overlapping wrapped.
Core is surrounded with 2 stratus master tapes outward.Nonwoven layer 8 outer one deck flame-proof silicon rubber layers that extrude.Flame-proof silicon rubber layer 9 outer vertical bag one deck aluminum alloy strip 10.The aluminum alloy strip 10 outer low-smoke halogen-free polyolefin layers 11 that extrude one deck oxygen index 〉=38%.
Core in the foregoing description can be 1,2 or many.Described nonwoven layer can adopt other materials to replace.The low-smoke halogen-free polyolefin layer 11 of described oxygen index 〉=38% also can adopt other materials to replace.Such conversion all drops within the protection range of the present utility model.
Claims (3)
1, a kind of mesohigh fire-resisting cable is characterized in that: core is coated with mica tape, band, flame-proof silicon rubber layer, vertical alclad alloy band and sheath outward successively; Between core and mica tape, flame-retardant filler is set.
2, mesohigh fire-resisting cable as claimed in claim 1 is characterized in that described sheath is the low-smoke halogen-free polyolefin layer.
3, mesohigh fire-resisting cable as claimed in claim 1 is characterized in that core is surrounded with two-layer mica tape outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200806455U CN201402665Y (en) | 2009-05-06 | 2009-05-06 | Medium-and-high voltage fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200806455U CN201402665Y (en) | 2009-05-06 | 2009-05-06 | Medium-and-high voltage fire-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402665Y true CN201402665Y (en) | 2010-02-10 |
Family
ID=41662465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200806455U Expired - Fee Related CN201402665Y (en) | 2009-05-06 | 2009-05-06 | Medium-and-high voltage fire-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402665Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000278A (en) * | 2012-12-17 | 2013-03-27 | 无锡江南电缆有限公司 | Flexible fireproof multiple-core cable |
| CN103198891A (en) * | 2012-01-05 | 2013-07-10 | 尼克桑斯公司 | Power and/or communication cable capable of preventing fire propagation |
| USD868701S1 (en) | 2014-08-07 | 2019-12-03 | Henkel Ag & Co. Kgaa | Overhead transmission conductor cable |
-
2009
- 2009-05-06 CN CN2009200806455U patent/CN201402665Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198891A (en) * | 2012-01-05 | 2013-07-10 | 尼克桑斯公司 | Power and/or communication cable capable of preventing fire propagation |
| CN103198891B (en) * | 2012-01-05 | 2019-01-15 | 尼克桑斯公司 | Power and/or communication cable capable of preventing fire propagation |
| CN103000278A (en) * | 2012-12-17 | 2013-03-27 | 无锡江南电缆有限公司 | Flexible fireproof multiple-core cable |
| USD868701S1 (en) | 2014-08-07 | 2019-12-03 | Henkel Ag & Co. Kgaa | Overhead transmission conductor 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: 20100210 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |