CN202084339U - Power cable with insulation layers and sheath all made of polyvinyl chloride - Google Patents
Power cable with insulation layers and sheath all made of polyvinyl chloride Download PDFInfo
- Publication number
- CN202084339U CN202084339U CN2011201593222U CN201120159322U CN202084339U CN 202084339 U CN202084339 U CN 202084339U CN 2011201593222 U CN2011201593222 U CN 2011201593222U CN 201120159322 U CN201120159322 U CN 201120159322U CN 202084339 U CN202084339 U CN 202084339U
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- CN
- China
- Prior art keywords
- power cable
- conductor
- polyvinyl chloride
- armour
- sheath
- 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 power cable with insulation layers and a sheath all made of polyvinyl chloride, which comprises a plurality of conductors with sectorial sections and a conductor with a circular section. The conductors with the sectorial sections and the conductor with the circular section are sequentially wrapped by one or multiple fireproof layers and the insulation layers which are formed by synthetic mica tapes in a lapped manner, the conductors with the sectorial sections after being wrapped by the insulation layers and the conductor with the circular section are stranded into a bundle, and are wrapped by an inner sheath layer and an armor layer after being bundled, and drain wires are arranged between the inner sheath layer and the armor layer and contact with the armor layer. One or multiple fireproof layers formed by the synthetic mica tapes in a lapped manner are additionally arranged among the conductors and the insulation layers, so that fireproof property of the power cable is evidently improved and the power cable is compact in structure. Meanwhile, shielding performance of the power cable is safer and more stable due to the drain wires arranged on the inner side of a shielding layer.
Description
Technical field
The utility model relates to the power cable field, relates in particular to a kind of polyvinyl chloride insulation, sheath power cable.
Background technology
Cable is in order to transmit electricity (magnetic) energy, the wire product of information and the conversion of realization electromagnetic energy.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.
Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The main feature of fire safe type power cable is a cable except transferring electric power in normal working conditions, cable still can keep the normal operation of certain hour when fire burns, be applicable to the places relevant with fire safety and fire-extinguishing and lifesaving such as nuclear power station, subway, tunnel, skyscraper.
The utility model is set up the flame retardant coating of the wrapped formation of one or more layers synthetic mica tape between conductor and insulating barrier, make cable have the operating characteristic of fire safe type power cable, and range of application is more extensive, and practical effect is good; Construction of cable compactness is provided with drain wire in the screen inboard simultaneously, makes that the shielding properties of cable is safer, stablizes.
The utility model content
The purpose of this utility model provides a kind of polyvinyl chloride insulation, sheath power cable, has good electric property and chemical stability, and is simple in structure, easy to use, is applicable to that ac rated voltage is on 0.6/1kv and the following electric line.
The technical solution of the utility model is as follows:
Polyvinyl chloride insulation, sheath power cable, comprise that several cross sections are fan-shaped conductor, a cross section is circular conductor, it is characterized in that: described several cross sections are fan-shaped conductor, a cross section is enclosed with the flame retardant coating of the wrapped formation of one or more layers synthetic mica tape outward successively for circular conductor, insulating barrier, several cross sections behind the wrap insulate layer are fan-shaped conductor, a cross section is the circular stranded bunchy of conductor, the outer inner restrictive coating that is enclosed with successively behind the bunchy, armour, be provided with drain wire between described inner restrictive coating and the armour, described drain wire is that sectional area is 0.5-1.0mm
2Copper wire, described drain wire contacts with armour, described armour is wrapped with external sheath layer.
Described polyvinyl chloride insulation, sheath power cable is characterized in that: described insulating barrier, inside and outside restrictive coating material adopt polyvinyl chloride.
The utility model has the advantages that:
The utility model is set up the flame retardant coating of the wrapped formation of one or more layers synthetic mica tape between conductor and insulating barrier, make the fire-resistance property of cable significantly promote, construction of cable compactness is provided with drain wire in the screen inboard simultaneously, makes that the shielding properties of cable is safer, stablizes.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Polyvinyl chloride insulation, sheath power cable, comprise that several cross sections are that fan-shaped conductor 1, a cross section are circular conductor 2, several cross sections are that fan-shaped conductor 1, a cross section are circular conductor 2 outer flame retardant coating 3, the insulating barriers 4 that are enclosed with the wrapped formation of one or more layers synthetic mica tape successively, several cross sections behind the wrap insulate layer 4 are that fan-shaped conductor 1, a cross section are circular conductor 2 stranded bunchys, outer inner restrictive coating 5, the armour 6 of being enclosed with successively behind the bunchy, be provided with drain wire 7 between inner restrictive coating 5 and the armour 6, drain wire 7 is 0.5-1.0mm for sectional area
2Copper wire, drain wire 7 contacts with armour 6, armour 6 is wrapped with external sheath layer 8, insulating barrier 4, inner restrictive coating 5, external sheath layer 8 materials adopt polyvinyl chloride.
Claims (2)
1. polyvinyl chloride insulation, sheath power cable, comprise that several cross sections are fan-shaped conductor, a cross section is circular conductor, it is characterized in that: described several cross sections are fan-shaped conductor, a cross section is the outer respectively flame retardant coating that is enclosed with the wrapped formation of one or more layers synthetic mica tape successively of circular conductor, insulating barrier, several cross sections behind the wrap insulate layer are fan-shaped conductor, a cross section is the circular stranded bunchy of conductor, the outer inner restrictive coating that is enclosed with successively behind the bunchy, armour, be provided with drain wire between described inner restrictive coating and the armour, described drain wire is that sectional area is 0.5-1.0mm
2Copper wire, described drain wire contacts with armour, described armour is wrapped with external sheath layer.
2. polyvinyl chloride insulation according to claim 1, sheath power cable is characterized in that: described insulating barrier, inside and outside restrictive coating material adopt polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201593222U CN202084339U (en) | 2011-05-18 | 2011-05-18 | Power cable with insulation layers and sheath all made of polyvinyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201593222U CN202084339U (en) | 2011-05-18 | 2011-05-18 | Power cable with insulation layers and sheath all made of polyvinyl chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084339U true CN202084339U (en) | 2011-12-21 |
Family
ID=45344961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201593222U Expired - Fee Related CN202084339U (en) | 2011-05-18 | 2011-05-18 | Power cable with insulation layers and sheath all made of polyvinyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915205A (en) * | 2013-09-26 | 2014-07-09 | 安徽华天电缆有限公司 | Rated voltage traction cable |
-
2011
- 2011-05-18 CN CN2011201593222U patent/CN202084339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915205A (en) * | 2013-09-26 | 2014-07-09 | 安徽华天电缆有限公司 | Rated voltage traction cable |
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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: 20111221 Termination date: 20140518 |