CN104078158A - Special medium-voltage fire-resistant cable - Google Patents
Special medium-voltage fire-resistant cable Download PDFInfo
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- CN104078158A CN104078158A CN201310103501.8A CN201310103501A CN104078158A CN 104078158 A CN104078158 A CN 104078158A CN 201310103501 A CN201310103501 A CN 201310103501A CN 104078158 A CN104078158 A CN 104078158A
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- cable
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Abstract
The invention discloses a special medium-voltage fire-resistant cable, and relates to the technical field of cable manufacturing, in particular to the technical field of special medium-voltage fire-resistant cable manufacturing. The cable comprises three mutually twisted cable cores, wherein a heat insulation layer, a cooling layer, a fire blocking layer, an inner protection layer, an armor layer and an outer sheath layer are sequentially arranged on the outer sides of the three twisted cable cores; fillers are arranged between the three cable cores and the heat insulation layer; each cable core comprises a copper conductor; and semiconductive wrapping tape layers, conductor shield layers, insulating layers and insulating shield layers are sequentially arranged on the outer sides of the copper conductors. The cable adopts optimization design and uses a new material, a new structure and a new technology, so that the electrical property, the fire resistance and the halogen-free flame resistance of the cable are improved, and the service life of the cable is prolonged.
Description
Technical field
The present invention relates to press in cables manufacturing technical field, particularly special type the manufacturing technology field of fire-resisting cable.
Background technology
Its electric pressure overwhelming majority of fireproof power cable product concentrates on 1KV and following at present, and some super-huge high-rises, the large-scale key project of country, transformer station, power plant, chemical industry, the fire prevention system mesohigh supply line used of the key positions such as subway, if adopt as usual 0.6/1KV low voltage distribution, its cable consumption and laying installation workload, more common building becomes decades of times to increase, cable laying space becomes several times of growths, both consumptive material, power consumption again, and in building, cable laying is too much, excessive, also can bring adverse effect to safe handling.Therefore, as these, not only need mesohigh power transmission and distribution but also require the occasion of flame-retardant just must use medium voltage fire.Existing middle pressure fire-resisting cable arranges combination flame retardant coating outward at cable core, and refractory material and unreasonable structure owing to using, cause current-carrying capacity of cable on the low side, and fever phenomenon appears in cable; The outside diameter of cable is made troubles and has also been increased product cost simultaneously to laying installation more greatly.
Summary of the invention
The object of the invention is that for above problem, providing a kind of can guarantee the unimpeded of supply line when fire occurs, and for the disaster relief, escape provide in the special type that safety guarantee, heat-proof quality are good, presses fire-resisting cable.
The present invention includes three groups of mutual stranded cable cores, in described three groups of stranded cable core outsides, set gradually thermal insulation layer, cooling layer, gear fire bed, sheath, armour and external sheath layer; Between described three groups of cable cores and thermal insulation layer, filling is set; Described every group of cable core comprises respectively copper conductor, in described copper conductor outside, sets gradually semiconductive belting layer, conductor shield, insulating barrier and insulation screen.
Conductor shield of the present invention, insulating barrier, insulation screen adopt three-layer co-extruded technology to extrude simultaneously; Insulating layer material is a kind of ceramic fibre material that integrates conventional insulation material, capabilities of refractory materials; Cooling layer adopts inorganic metal hydrate, because its heat conduction, anti-flammability are very good, fully guarantees the high flame retardant characteristic of cable, and the moisture of separating out can play the effect that flame retardant coating is fully lowered the temperature; Flame retardant coating adopts ceramic macromolecule composite fire silicon rubber, by flame ablation in the situation that, can form the isolation layer that one deck is good, stops burning away of flame, plays good flameproof effect; Sheath adopts LSOH anti-flaming material to extrude.The present invention by optimal design, uses new material, new construction, new technology, has promoted electrical property, the fire resistance of cable, halogen-free flameproof performance, has extended useful life of cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes three groups of mutual stranded cable cores 1, in three groups of stranded cable core 1 outsides, set gradually thermal insulation layer 2, cooling layer 3, gear fire bed 4, sheath 5, armour 6 and external sheath layer 7; Between three groups of cable cores 1 and thermal insulation layer 2, arrange and fill 8; Every group of cable core 1 comprises respectively copper conductor 9, in copper conductor 9 outsides, sets gradually semiconductive belting layer 10, conductor shield 11, insulating barrier 12 and insulation screen 13.
Claims (1)
1. in special type, press fire-resisting cable, it is characterized in that: comprise three groups of mutual stranded cable cores, in described three groups of stranded cable core outsides, set gradually thermal insulation layer, cooling layer, gear fire bed, sheath, armour and external sheath layer; Between described three groups of cable cores and thermal insulation layer, filling is set; Described every group of cable core comprises respectively copper conductor, in described copper conductor outside, sets gradually semiconductive belting layer, conductor shield, insulating barrier and insulation screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103501.8A CN104078158A (en) | 2013-03-28 | 2013-03-28 | Special medium-voltage fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103501.8A CN104078158A (en) | 2013-03-28 | 2013-03-28 | Special medium-voltage fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104078158A true CN104078158A (en) | 2014-10-01 |
Family
ID=51599370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310103501.8A Pending CN104078158A (en) | 2013-03-28 | 2013-03-28 | Special medium-voltage fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104078158A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070399A (en) * | 2015-09-09 | 2015-11-18 | 刘雷 | Fire-proof type signal cable and production method thereof |
| CN105070398A (en) * | 2015-09-09 | 2015-11-18 | 刘雷 | Fire-proof type computer communication cable and production method thereof |
| CN106298031A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of Novel fire-resistant power cable |
-
2013
- 2013-03-28 CN CN201310103501.8A patent/CN104078158A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298031A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of Novel fire-resistant power cable |
| CN105070399A (en) * | 2015-09-09 | 2015-11-18 | 刘雷 | Fire-proof type signal cable and production method thereof |
| CN105070398A (en) * | 2015-09-09 | 2015-11-18 | 刘雷 | Fire-proof type computer communication cable and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |