CN202632845U - Polyvinyl chloride insulating fireproof power cable having steel-tape armor - Google Patents
Polyvinyl chloride insulating fireproof power cable having steel-tape armor Download PDFInfo
- Publication number
- CN202632845U CN202632845U CN 201220071428 CN201220071428U CN202632845U CN 202632845 U CN202632845 U CN 202632845U CN 201220071428 CN201220071428 CN 201220071428 CN 201220071428 U CN201220071428 U CN 201220071428U CN 202632845 U CN202632845 U CN 202632845U
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- Prior art keywords
- polyvinyl chloride
- layer
- steel
- power cable
- chloride insulation
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Abstract
The utility model provides a polyvinyl chloride insulating fireproof power cable having a steel-tape armor. The polyvinyl chloride insulating fireproof power cable having the steel-tape armor includes at least one metal conductor. Each metal conductor is coated with a fireproof layer. The polyvinyl chloride insulating layer is arranged outside the fireproof layer. An outer sheath layer is arranged outside the polyvinyl chloride insulating layer. A taping layer is arranged between the polyvinyl chloride insulating layer and the outer sheath layer. An inner sheath layer is arranged between the taping layer and the outer sheath layer. The steel-tape armor is arranged between the inner sheath layer and the outer sheath layer. The polyvinyl chloride insulating fireproof power cable having the steel-tape armor provided by the utility model has good fire-resisting effect and high insulation reliability, and can prevent damages caused by animals and plants and has improved wear-resistance performance. The polyvinyl chloride insulating fireproof power cable having the steel-tape armor is used for occasions such as the indoor, tunnels, cable channels or used for buried-cable laying, and can bear a certain volume of mechanical external forces.
Description
Technical field
The utility model relates to the technical field of power cable, especially a kind of polyvinyl chloride insulation steel-tape armouring fireproof power cable.
Background technology
The current capacity of cable is relevant with the sectional area of conductor thread core usually; Conductor temperature is raise; The temperature of the outer insulating barrier that coats of conductor surpasses the last change that can cause on the insulating barrier generation performance in limited time; Thereby the insulating reliability of insulating barrier is reduced greatly, influence the useful life of cable.
Even if cable has good heat resistance, in the higher occasion of fail safe, but can not prevent vegeto-animal destruction, also possibly bring big indirect loss to power supply.
The fire resistance of simultaneously present cable is relatively poor; In case breaking out of fire, cable fire can produce a large amount of dense smokes, makes rescue work be difficult to carry out; The hydracid corrosive gas that discharges during the substance combustion of Halogen also can shine into certain infringement equipment except harmful to human.
The utility model content
The technical problem that the utility model will solve is: in order to solve the problem that proposes in the above-mentioned background technology; The utility model provides a kind of polyvinyl chloride insulation steel-tape armouring fireproof power cable; It fire-resistant effective, insulating reliability is big, can prevent vegeto-animal destruction and strengthen anti-wear performance.
The utility model solves the technical scheme that its technical problem adopted: a kind of polyvinyl chloride insulation steel-tape armouring fireproof power cable; Comprise at least one metallic conductor, each metallic conductor is coated with flame retardant coating, and flame retardant coating is provided with the polyvinyl chloride insulation layer outward; The polyvinyl chloride insulation layer is provided with external sheath layer outward; Be provided with belting layer between polyvinyl chloride insulation layer and the external sheath layer, be provided with inner restrictive coating between belting layer and the external sheath layer, be provided with steel-tape armouring between inner restrictive coating and the external sheath layer.
Further: the cross section of each metallic conductor is circular.
Further: each metallic conductor is copper core or aluminium core.
Further: metallic conductor is 2.
Further: be provided with packed layer between polyvinyl chloride insulation layer and the belting layer.
Further: metallic conductor is 3 or 4 or 5.
Further: be equipped with packed layer between the polyvinyl chloride insulation layer outside belting layer and each metallic conductor and between the polyvinyl chloride insulation layer outside each metallic conductor.
The beneficial effect of the utility model: the outer flame retardant coating that coats of each metallic conductor makes the fire-resistant effect of cable improve in the cable of the utility model, effectively prevents hydracid corrosive gas harmful to human and equipment that cable discharges when the breaking out of fire after-combustion produces the substance combustion of a large amount of dense smokes and Halogen; The polyvinyl chloride insulation layer of flame retardant coating peripheral hardware, under rated voltage 0.6/1kV condition of power supply, the insulating reliability of polyvinyl chloride insulation layer is big; The steel-tape armouring of establishing between inner restrictive coating and the external sheath layer can prevent vegeto-animal destruction and strengthen anti-wear performance, and that this cable is used for is indoor, in the tunnel, cable trough or bury the place that ground etc. can bear mechanical external force.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the cross section structure sketch map of the utility model embodiment one;
Fig. 2 is the cross section structure sketch map of the utility model embodiment two;
Fig. 3 is the cross section structure sketch map of the utility model embodiment three;
Fig. 4 is the cross section structure sketch map of the utility model embodiment four;
Fig. 5 is the cross section structure sketch map of the utility model embodiment five;
Fig. 6 is the cross section structure sketch map of the utility model embodiment six;
Fig. 7 is the cross section structure sketch map of the utility model embodiment seven;
Fig. 8 is the cross section structure sketch map of the utility model embodiment eight.
Among the figure 1, metallic conductor, 2, flame retardant coating, 3, the polyvinyl chloride insulation layer, 4, belting layer, 5, external sheath layer, 6, packed layer, 7, inner restrictive coating, 8, steel-tape armouring.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Polyvinyl chloride insulation steel-tape armouring fireproof power cable like Fig. 1-the utility model shown in Figure 8; It comprises at least one metallic conductor 1; Each metallic conductor 1 is coated with flame retardant coating 2, and flame retardant coating 2 makes the fire-resistant effect of cable improve, and effectively prevents hydracid corrosive gas harmful to human and equipment that cable discharges when the breaking out of fire after-combustion produces the substance combustion of a large amount of dense smokes and Halogen; The flame retardant coating 2 outer polyvinyl chloride insulation layers 3 that are provided with; Under rated voltage 0.6/1kV condition of power supply, the insulating reliability of polyvinyl chloride insulation layer 3 is big, the polyvinyl chloride insulation layer 3 outer external sheath layer 5 that is provided with; Be provided with belting layer 4 between polyvinyl chloride insulation layer 3 and the external sheath layer 5; Be provided with inner restrictive coating 7 between belting layer 4 and the external sheath layer 5, be provided with steel-tape armouring 8 between inner restrictive coating 7 and the external sheath layer 5, can prevent vegeto-animal destruction and strengthen anti-wear performance.
The cross section of above-mentioned each metallic conductor 1 is circular; Each metallic conductor 1 is copper core or aluminium core; When metallic conductor 1 is 2, be provided with packed layer 6 between polyvinyl chloride insulation layer 3 and the belting layer 4; When metallic conductor 1 is 3 or 4 or 5 or 3+1 or 3+2 or 4+1, between the outer polyvinyl chloride insulation layer 3 of belting layer 4 and each metallic conductor 1 and be equipped with packed layer 6 between each metallic conductor 1 polyvinyl chloride insulation layer 3 outward.
Be not provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment one as shown in Figure 1 are that 1 cross section is circular structure; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment two as shown in Figure 2 are that 2 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment three as shown in Figure 3 are that 3 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment four as shown in Figure 4 are that 4 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment five as shown in Figure 5 are that 5 cross sections are circular structures; Packed layer 6 and the metallic conductor 1 that be provided with of the utility model embodiment six as shown in Figure 6 is the structure of 3+1 cross section for circle; Packed layer 6 and the metallic conductor 1 that be provided with of the utility model embodiment seven as shown in Figure 7 is the structure of 3+2 cross section for circle; Packed layer 6 and the metallic conductor 1 that be provided with of the utility model embodiment eight as shown in Figure 8 is the structure of 4+1 cross section for circle.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (7)
1. polyvinyl chloride insulation steel-tape armouring fireproof power cable; It is characterized in that: comprise at least one metallic conductor (1); Each metallic conductor (1) is coated with flame retardant coating (2); The outer polyvinyl chloride insulation layer (3) that is provided with of flame retardant coating (2), polyvinyl chloride insulation layer (3) is outer to be provided with external sheath layer (5), is provided with belting layer (4) between polyvinyl chloride insulation layer (3) and the external sheath layer (5); Be provided with inner restrictive coating (7) between belting layer (4) and the external sheath layer (5), be provided with steel-tape armouring (8) between inner restrictive coating (7) and the external sheath layer (5).
2. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 1 is characterized in that: the cross section of described each metallic conductor (1) is for circular.
3. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 1 is characterized in that: described each metallic conductor (1) is copper core or aluminium core.
4. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 1 is characterized in that: described metallic conductor (1) is 2.
5. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 4 is characterized in that: be provided with packed layer (6) between described polyvinyl chloride insulation layer (3) and the belting layer (4).
6. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 1 is characterized in that: described metallic conductor (1) is 3 or 4 or 5.
7. polyvinyl chloride insulation steel-tape armouring fireproof power cable according to claim 6 is characterized in that: be equipped with packed layer (6) between the polyvinyl chloride insulation layer (3) outside described belting layer (4) and each metallic conductor (1) and between the polyvinyl chloride insulation layer (3) outside each metallic conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220071428 CN202632845U (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating fireproof power cable having steel-tape armor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220071428 CN202632845U (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating fireproof power cable having steel-tape armor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632845U true CN202632845U (en) | 2012-12-26 |
Family
ID=47386008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220071428 Expired - Fee Related CN202632845U (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating fireproof power cable having steel-tape armor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632845U (en) |
-
2012
- 2012-02-29 CN CN 201220071428 patent/CN202632845U/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: 20121226 Termination date: 20130229 |