CN203260391U - Fire-resistant dampproof power cable - Google Patents
Fire-resistant dampproof power cable Download PDFInfo
- Publication number
- CN203260391U CN203260391U CN 201320287716 CN201320287716U CN203260391U CN 203260391 U CN203260391 U CN 203260391U CN 201320287716 CN201320287716 CN 201320287716 CN 201320287716 U CN201320287716 U CN 201320287716U CN 203260391 U CN203260391 U CN 203260391U
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- China
- Prior art keywords
- fire
- cable
- cable core
- mica tape
- resistant
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- 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 - Lifetime
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Abstract
The utility model discloses a fire-resistant dampproof power cable, comprising a cable core, wherein the cable core is formed by twisting a plurality of insulated wire cores; each insulated wire core is formed by a conductor, and a first fire-resistant compound mica tape and a water-blocking tape which are sequentially extruded outside the conductor; and the gap of the cable core is filled by glass fiber filaments, two layers of second fire-resistant compound mica tape are wrapped outside the cable core, and an outer sheath is extruded on the outermost layer of the cable core. The fire-resistant dampproof power cable adopts a method of overlapping and wrapping certain layers of double-sided compound mica tape (having high fire-resistant property) on the conductors, the overlapping and imbricating rate of each layer of mica tape is not less than 25%, the fire resistance of the cable is improved, and a layer of water-blocking tape served as the dampproof layer is overlapped and wrapped outside the mica tapes, thereby preventing water from spreading into the internal of the cable.
Description
Technical field
The utility model relates to the electric wire field, specifically refers to a kind of fire safe type moistureproof power cable.
Background technology
At present, power cable is as a class power cable of electric energy transmitting, for remarkable contribution has been made in the development of China's power supply electric utility.Along with industrial expansion, the range of application of power cable is originally more extensive, common power cable is often because the performance limitations of the material that uses or the design defect of the construction of cable, cause the fire resistance of cable poor, water resistance is poor, thereby the frequent occurrence that causes cable fault causes casualties and economic loss.And mineral insulated cable is large because of production cost and the restriction of production length, can not be widely used in existing industrial circle scope.
The utility model content
Technical problem to be solved in the utility model provide a kind of super fire-resistant, moisture resistance good, the power cable of long service life.
A kind of fire safe type moistureproof power cable described in the utility model comprises cable core, and its cable core is to form by some insulated wire cores are stranded; Described insulated wire cores is by conductor and be extruded in successively conductor outer the first refractory synthetic mica tape, waterstop and consist of; Fill glass fiber yarn in the cable core gap, outer wrapped two-layer the second refractory synthetic mica tape of cable core, the cable core outermost layer extrudes oversheath.
Further improve, described the first refractory synthetic mica tape, the second refractory synthetic mica tape are bilateral structure again, and its overlapping rate of putting up is not less than 25%.
The beneficial effects of the utility model are:
In order to remedy the weak point of common power cable, the utility model has adopted the two-sided synthetic mica tape (having higher fire-resistance property) of overlapping wrapped certain number of plies on conductor, the overlapping rate of putting up of each stratus master tape is not less than 25%, increased the fire resistance of cable, mica tape outside more overlapping wrapped one deck waterstop is used as damp-proof layer, stops moisture to the further diffusion of cable inside.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of fire safe type moistureproof power cable described in the utility model comprises cable core, and its cable core is to form by some insulated wire cores are stranded; Described insulated wire cores is by conductor 1 and be extruded in successively conductor 1 outer the first refractory synthetic mica tape 2, waterstop 3 and consist of; Fill glass fiber yarn 4 in the cable core gap, outer wrapped two-layer the second refractory synthetic mica tape 5 of cable core, the cable core outermost layer extrudes oversheath 6.
The first refractory synthetic mica tape 2 described above, the second refractory synthetic mica tape 5 are bilateral structure, and its overlapping rate of putting up is not less than 25%.
The concrete application approach of the utility model is a lot; the above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (2)
1. a fire safe type moistureproof power cable comprises cable core, it is characterized in that, its cable core is to form by some insulated wire cores are stranded; Described insulated wire cores is by conductor (1) and be extruded in successively outer the first refractory synthetic mica tape (2) of conductor (1), waterstop (3) consists of; Fill glass fiber yarn (4) in the cable core gap, outer wrapped two-layer the second refractory synthetic mica tape (5) of cable core, the cable core outermost layer extrudes oversheath (6).
2. fire safe type moistureproof power cable according to claim 1 is characterized in that, described the first refractory synthetic mica tape (2), the second refractory synthetic mica tape (5) are bilateral structure, and its overlapping rate of putting up is not less than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287716 CN203260391U (en) | 2013-05-24 | 2013-05-24 | Fire-resistant dampproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287716 CN203260391U (en) | 2013-05-24 | 2013-05-24 | Fire-resistant dampproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260391U true CN203260391U (en) | 2013-10-30 |
Family
ID=49472937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320287716 Expired - Lifetime CN203260391U (en) | 2013-05-24 | 2013-05-24 | Fire-resistant dampproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247380A (en) * | 2013-05-24 | 2013-08-14 | 江苏新长峰线缆有限公司 | Fire-resistant damp-proof power cable |
-
2013
- 2013-05-24 CN CN 201320287716 patent/CN203260391U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247380A (en) * | 2013-05-24 | 2013-08-14 | 江苏新长峰线缆有限公司 | Fire-resistant damp-proof power cable |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |