CN202694933U - Fireproofing and flame retarding power cable - Google Patents
Fireproofing and flame retarding power cable Download PDFInfo
- Publication number
- CN202694933U CN202694933U CN 201220218635 CN201220218635U CN202694933U CN 202694933 U CN202694933 U CN 202694933U CN 201220218635 CN201220218635 CN 201220218635 CN 201220218635 U CN201220218635 U CN 201220218635U CN 202694933 U CN202694933 U CN 202694933U
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- CN
- China
- Prior art keywords
- fire protection
- protection layer
- fireproofing
- flame retarding
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fireproofing and flame retarding power cable. Twisting structure is applied in a conductor which is wound and coated with a fire protection layer composed of two layers of mica tapes. A polyethylene insulating layer is extruded on the fire protection layer to form an insulated wire core, and steam cross bonding is applied in the fire protection layer. Three insulated wire cores and flame retarding filling ropes are twisted together and coated on the fire protection layer composed of two layers of mica tapes, and the fire protection layer is provided with a restrictive coating and an outer sheath from inside to outside. The restrictive coating is molded in extrusion mode by applying low smoke zero halogen polyolefin, and the outer sheath is molded in extrusion mode by thermoplastic fireproofing polyolefin. The fireproofing and flame retarding power cable can keep good insulating property when the cable burns at high temperature and can continuously operate in flame of high temperature.
Description
Technical field
The utility model relates to a kind of power cable, particularly a kind of fire protection flame retarding power cable.Belong to technical field of electric wires and cables.
Background technology
Along with socioeconomic development, the electric wire consumption increases rapidly, the electrical fire accident also occurs again and again, people are from the heaviness lesson of electrical fire accident, recognize gradually at some important places, such as electric equipments in the circuits such as naval vessel, production platform, petroleum chemical enterprise, large-scale power station, large-scale command and control center and skyscraper, underground structure, tunnel, subway, it is very important keeping being in stable running status in the certain hour under fire condition.
The utility model content
The utility model provides the requirement of a kind of fire protection flame retarding power cable still can keep good insulation property at cable in the high-temp combustion situation, can continuously operation in thermal-flame.
Scheme of the present utility model is as follows: a kind of fire protection flame retarding power cable, and conductor adopts lay configuration, and the fireprotection layer that wrapped two-layer mica tape forms on the described conductor extrudes polyethylene layer and consists of insulated wire cores on the described fireprotection layer, and adopts vapor crosslinking; The fireprotection layer that three eradication edge cores and fire-retardant gasket for packing twist together and wrapped two-layer mica tape forms; Be provided with from inside to outside restrictive coating and outer jacket on the described fireprotection layer; Described restrictive coating adopts low smoke, zero halogen polyolefin material to extrude moulding, and described outer jacket adopts thermoplasticity fire prevention polyolefin to extrude moulding.
The beneficial effects of the utility model:
1, the utility model cable cover(ing) adopts the low smoke, zero halogen polyolefin jacket, because the low smoke, zero halogen polyolefin jacket has well the characteristics such as fire-retardant, high mechanical properties.
2, the utility model extrudes one deck thermoplastic halogen-free fire prevention polyolefin jacket material in the oversheath outside, can effectively prevent the burning of flame, improves the fireproofing of cable performance.
3, the utility model conductor and cable core wrapped double-layer alloy mica tape respectively improves the fireproofing of cable performance, prolongs cable useful life.
4, the utility model cable keeps good insulation property in the high-temp combustion situation, can continuously operation in thermal-flame.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
A kind of fire protection flame retarding power cable, conductor 1 adopts lay configuration, and the fireprotection layer 2 that wrapped two-layer mica tape forms on the described conductor 1 extrudes polyethylene layer 3 and consists of insulated wire cores, and adopts vapor crosslinking on the described fireprotection layer 2; Three thoroughly do away with the edge cores and fire-retardantly fill out 4 and fill the fireprotection layer 5 that rope twists together and wrapped two-layer mica tape forms; Be provided with from inside to outside restrictive coating 6 and outer jacket 7 on the described fireprotection layer 5; Described restrictive coating 6 adopts low smoke, zero halogen polyolefin material to extrude moulding, and described outer jacket 7 adopts thermoplasticity fire prevention polyolefin to extrude moulding.
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 modification; when its function that produces does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection range of the present utility model.
Claims (1)
1. a fire protection flame retarding power cable is characterized in that conductor adopts lay configuration, and the fireprotection layer that wrapped two-layer mica tape forms on the described conductor extrudes polyethylene layer and consists of insulated wire cores on the described fireprotection layer, and adopts vapor crosslinking; The fireprotection layer that three eradication edge cores and fire-retardant gasket for packing twist together and wrapped two-layer mica tape forms; Be provided with from inside to outside restrictive coating and outer jacket on the described fireprotection layer; Described restrictive coating adopts low smoke, zero halogen polyolefin material to extrude moulding, and described outer jacket adopts thermoplasticity fire prevention polyolefin to extrude moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218635 CN202694933U (en) | 2012-05-16 | 2012-05-16 | Fireproofing and flame retarding power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218635 CN202694933U (en) | 2012-05-16 | 2012-05-16 | Fireproofing and flame retarding power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694933U true CN202694933U (en) | 2013-01-23 |
Family
ID=47550515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218635 Expired - Fee Related CN202694933U (en) | 2012-05-16 | 2012-05-16 | Fireproofing and flame retarding power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694933U (en) |
-
2012
- 2012-05-16 CN CN 201220218635 patent/CN202694933U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140516 |