CN2814625Y - Medium voltage fireproof electric cable - Google Patents
Medium voltage fireproof electric cable Download PDFInfo
- Publication number
- CN2814625Y CN2814625Y CN 200520085753 CN200520085753U CN2814625Y CN 2814625 Y CN2814625 Y CN 2814625Y CN 200520085753 CN200520085753 CN 200520085753 CN 200520085753 U CN200520085753 U CN 200520085753U CN 2814625 Y CN2814625 Y CN 2814625Y
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- China
- Prior art keywords
- alkali
- fire
- sheath
- layer
- cable
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- Expired - Lifetime
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Abstract
The utility model provides a cable, specifically a medium-voltage fireproof cable. The utility model is composed of a screening wire core of an insulating copper belt of cross-linked polyethylene, a composite fireproof protecting layer, a packed layer with non-alkali rock cotton ropes, a wrapping belt with non-alkali glass silk, an inner sheath, a steel-tape armour and an oversheath, wherein the composite fireproof protecting layer, the packed layer with non-alkali rock cotton ropes, the wrapping belt with non-alkali glass silk, the inner sheath, the steel-tape armour and the oversheath are orderly coated outside a screening layer of the screening wire core of an insulating copper belt of cross-linked polyethylene. The composite fireproof protecting layer is formed by mixing a fireproof mica belt and the wrapping belt with non-alkali glass silk. The medium-voltage fireproof cable of the utility model has the characteristics that technology manufacturing is simple, fireproof property is good, processing manufacture is easy, the utility model can be ensured to work under combustion environment for a long time, etc.
Description
Technical field
The utility model relates to a kind of cable, a kind of specifically middle fire-resisting cable of pressing.
Background technology
Under the prior art; the common midium voltage cable that is widely used in coal, oil field and the urban skyscraper thing protects owing to it only has a layer insulating to go bail for; can not guarantee fire-resistant needs, be in for a long time under hot operation state or the burning situation, then can influence powered operation as cable.Even fireprotection layer on its outer simple coating can thoroughly not burnt out easily because of control yet, still can not avoid damaging, thus the influence power supply.
Summary of the invention
Technical assignment of the present utility model is at above weak point, provides that a kind of technology manufacturing is simple, fire resistance good, is easy to processing and fabricating, can guarantees work long hours middle pressure fire-resisting cable under burning situation of cable.
The technical scheme that its technical problem that solves the utility model adopts is:
Press fire-resisting cable in a kind of, be made up of crosslinked polyetylene insulated copper strips shielding core, composite fire sheath, alkali-free mineral wool rope packed layer, alkali-free glass wool band, inner sheath, steel-tape armouring layer and oversheath, the screen of crosslinked polyetylene insulated copper strips shielding core is coated with composite fire sheath, alkali-free mineral wool rope packed layer, alkali-free glass wool band, inner sheath, steel-tape armouring layer and oversheath outward successively; Described composite fire sheath is made of fire-resistant isinglass belt and the mixing of alkali-free glass wool band.
The quantity of crosslinked polyetylene insulated copper strips shielding core is 3 in the alkali-free mineral wool rope packed layer.
Alkali-free mineral wool rope packed layer skin is coated with two-layer alkali-free glass wool band.
Inner sheath adopts the high flame retardant polyvinyl chloride sheath.
Steel-tape armouring layer, oversheath adopt fire-resistant pvc sheath.
Press fire-resisting cable to compare in of the present utility model, have that the technology manufacturing is simple, fire resistance good, be easy to processing and fabricating, can guarantee that cable works long hours in the inferior characteristics of burning situation with prior art, thereby, have good value for applications.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is the cross section structure schematic diagram of middle pressure fire-resisting cable.
Embodiment
Explain below pressing the fire-resisting cable work in of the present utility model with reference to Figure of description.
Press fire-resisting cable in a kind of, form screen 8 outer composite fire sheath 2, alkali-free mineral wool rope packed layer 3, alkali-free glass wool band 4, inner sheath 5, steel-tape armouring layer 6 and the oversheaths 7 of being coated with successively of crosslinked polyetylene insulated copper strips shielding core 1 by crosslinked polyetylene insulated copper strips shielding core 1, composite fire sheath 2, alkali-free mineral wool rope packed layer 3, alkali-free glass wool band 4, inner sheath 5, steel-tape armouring layer 6 and oversheath 7; Described composite fire sheath 2 is made of fire-resistant isinglass belt and the mixing of alkali-free glass wool band.
The quantity of crosslinked polyetylene insulated copper strips shielding core 1 is 3 in the alkali-free mineral wool rope packed layer 3.
Alkali-free mineral wool rope packed layer 3 skins are coated with two-layer alkali-free glass wool band 4.
Inner sheath 5 adopts the high flame retardant polyvinyl chloride sheath.
Steel-tape armouring layer 6, oversheath 7 adopt fire-resistant pvc sheath.
Outside crosslinked polyetylene insulated copper strips shielding core 1 screen 8, increase composite fire sheath 2, adopt wrapped one deck fire-resistant isinglass belt and alkali-free glass wool band, composite fire sheath 2 assurance cables insulate in combustion process and are not damaged, packed layer adopts the alkali-free mineral wool rope to fill to prevent flame from prolonging combustion in three-core cable, tighten at alkali-free mineral wool rope packed layer 3 outer alkali-free glass wool band 4 bilayers that adopt, inner sheath 5 adopts the high flame retardant polyvinyl chloride sheath, steel-tape armouring layer 6, oversheath 7 adopt fire-resistant pvc sheath, to improve the structural stability of cable.
Press its processing and fabricating of fire-resisting cable very simple and convenient in of the present utility model, can process shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (5)
1, a kind of middle fire-resisting cable of pressing, form by crosslinked polyetylene insulated copper strips shielding core, composite fire sheath, alkali-free mineral wool rope packed layer, alkali-free glass wool band, inner sheath, steel-tape armouring layer and oversheath, it is characterized in that the screen of crosslinked polyetylene insulated copper strips shielding core is coated with composite fire sheath, alkali-free mineral wool rope packed layer, alkali-free glass wool band, inner sheath, steel-tape armouring layer and oversheath outward successively; Described composite fire sheath is made of fire-resistant isinglass belt and the mixing of alkali-free glass wool band.
2, the middle fire-resisting cable of pressing according to claim 1 is characterized in that the quantity of crosslinked polyetylene insulated copper strips shielding core in the alkali-free mineral wool rope packed layer is 3.
3, the middle fire-resisting cable of pressing according to claim 1 is characterized in that alkali-free mineral wool rope packed layer skin is coated with two-layer alkali-free glass wool band.
4, the middle fire-resisting cable of pressing according to claim 1 is characterized in that inner sheath adopts the high flame retardant polyvinyl chloride sheath.
5, the middle fire-resisting cable of pressing according to claim 1 is characterized in that steel-tape armouring layer, oversheath adopt fire-resistant pvc sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520085753 CN2814625Y (en) | 2005-07-28 | 2005-07-28 | Medium voltage fireproof electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520085753 CN2814625Y (en) | 2005-07-28 | 2005-07-28 | Medium voltage fireproof electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814625Y true CN2814625Y (en) | 2006-09-06 |
Family
ID=36949711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520085753 Expired - Lifetime CN2814625Y (en) | 2005-07-28 | 2005-07-28 | Medium voltage fireproof electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814625Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666048B (en) * | 2009-09-09 | 2012-10-03 | 扬州新奇特电缆材料有限公司 | Method for manufacturing inorganic mineral paper rope |
| CN102779573A (en) * | 2011-05-13 | 2012-11-14 | 远东电缆有限公司 | Fireproof cable and production process thereof |
| CN108847308A (en) * | 2018-06-20 | 2018-11-20 | 台州学院 | A kind of crosslinked polyetylene insulated pvc sheath cable and its preparation process |
| CN108878008A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of mineral insulated cable |
| CN109390098A (en) * | 2018-11-30 | 2019-02-26 | 人民电缆集团有限公司 | A kind of dual fireproof control cable structure |
-
2005
- 2005-07-28 CN CN 200520085753 patent/CN2814625Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666048B (en) * | 2009-09-09 | 2012-10-03 | 扬州新奇特电缆材料有限公司 | Method for manufacturing inorganic mineral paper rope |
| CN102779573A (en) * | 2011-05-13 | 2012-11-14 | 远东电缆有限公司 | Fireproof cable and production process thereof |
| CN108847308A (en) * | 2018-06-20 | 2018-11-20 | 台州学院 | A kind of crosslinked polyetylene insulated pvc sheath cable and its preparation process |
| CN108878008A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of mineral insulated cable |
| CN109390098A (en) * | 2018-11-30 | 2019-02-26 | 人民电缆集团有限公司 | A kind of dual fireproof control cable structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150728 Granted publication date: 20060906 |
|
| EXPY | Termination of patent right or utility model |