CN103295692A - Novel three-core steel-band-armored cable - Google Patents
Novel three-core steel-band-armored cable Download PDFInfo
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- CN103295692A CN103295692A CN 201210050372 CN201210050372A CN103295692A CN 103295692 A CN103295692 A CN 103295692A CN 201210050372 CN201210050372 CN 201210050372 CN 201210050372 A CN201210050372 A CN 201210050372A CN 103295692 A CN103295692 A CN 103295692A
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Abstract
The invention relates to a novel three-core steel-band-armored cable which comprises three metal conductors. A conductor shielding layer covers each metal conductor. An insulation layer covers the conductor shielding layer, an insulation shielding layer covers the insulation layer, a copper band shielding layer covers the insulation shielding layer, a non-woven fabric layer is arranged outside the copper band shielding layer and an inner protecting sleeve layer is arranged outside the non-woven fabric layer. An outer protecting layer is arranged outside the inner protecting sleeve layer. A steel band is arranged between the inner protecting layer and the outer protecting layer in an armored mode. The cable is suitable for the situation where the nominal voltage ranges from 3.6/6kV to 26/35kV, capable of preventing damage by animals and plants and enhancing abrasion-resistant performance, high in insulation reliability, good in flame-retarding effect and applicable to indoor places, tunnels, cable ditches and other occasions which can bear external mechanical stress.
Description
Technical field
The present invention relates to the technical field of power cable, especially a kind of novel three cored steel belt armoured cables.
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.
Existing common cable exists structural stability difference and incendive problem simultaneously, so the fire-retardant problem of the lsafety level of electric wiring and cable more and more causes people's attention.
Even if cable has good heat resistance simultaneously, in the higher occasion of fail safe, but can not prevent vegeto-animal destruction, also may bring big indirect loss to power supply.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the problem that proposes in the above-mentioned background technology, the invention provides a kind of novel three cored steel belt armoured cables, it can prevent vegeto-animal destruction and strengthen anti-wear performance, and insulating reliability is big, good flame retardation effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel three cored steel belt armoured cables, comprise three metallic conductors, each metallic conductor is coated with conductor shield, conductor shield is coated with insulating barrier, and insulating barrier is coated with insulation screen, and insulation screen is coated with the copper strips screen, copper strips screen peripheral hardware has nonwoven layer, nonwoven layer is provided with inner restrictive coating outward, and inner restrictive coating is provided with external sheath layer outward, is provided with steel-tape armouring between inner restrictive coating and the external sheath layer.
Further: be equipped with packed layer between the copper strips screen that each metallic conductor is outer and the nonwoven layer and between the copper strips screen outside each metallic conductor.
Further: the cross section of each metallic conductor is circular.
Further: each metallic conductor is copper core or aluminium core.
Further: the material of insulating barrier is crosslinked polyethylene.
Further: the material of external sheath layer and inner restrictive coating is polyvinyl chloride or polyethylene.
Beneficial effect of the present invention: cable of the present invention is applicable to that rated voltage is the situation of 3.6/6kV～26/35kV, steel-tape armouring can prevent vegeto-animal destruction and strengthen anti-wear performance, the insulating reliability of crosslinked polyetylene insulated layer is big, the good flame retardation effect of polyvinyl chloride or polyethylene external sheath layer and polyvinyl chloride or polyethylene inner restrictive coating, the place that can bear mechanical external force for indoor, tunnel, cable trough etc.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is cross section structure schematic diagram of the present invention.
Among the figure 1, metallic conductor, 2, conductor shield, 3, insulating barrier, 4, insulation screen, 5, the copper strips screen, 6, nonwoven layer, 7, external sheath layer, 8, packed layer, 9, inner restrictive coating, 10, steel-tape armouring.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of novel three cored steel belt armoured cables as shown in Figure 1, it comprises three metallic conductors 1, each metallic conductor 1 is coated with conductor shield 2, conductor shield 2 is coated with insulating barrier 3, insulating barrier 3 is coated with insulation screen 4, insulation screen 4 is coated with copper strips screen 5, copper strips screen 5 peripheral hardwares have nonwoven layer 6, the nonwoven layer 6 outer inner restrictive coatings 9 that are provided with, the inner restrictive coating 9 outer external sheath layers 7 that are provided with, be provided with steel-tape armouring 10 between inner restrictive coating 9 and the external sheath layer 7, steel-tape armouring 10 can prevent vegeto-animal destruction and strengthen anti-wear performance, and then prolongs the useful life of cable.
Be equipped with packed layer 8 between copper strips screen 5 outside above-mentioned each metallic conductor 1 and the nonwoven layer 6 and between the copper strips screen 5 outside each metallic conductor 1; The cross section of each metallic conductor 1 is circular; Each metallic conductor 1 is copper core or aluminium core; The material of insulating barrier 3 is crosslinked polyethylene, and insulating reliability is big; The material of external sheath layer 7 and inner restrictive coating 9 is polyvinyl chloride or polyethylene, good flame retardation effect.This cable is applicable to that rated voltage is the situation of 3.6/6kV～26/35kV, can bear the place of mechanical external force for indoor, tunnel, cable trough etc.
Be enlightenment with above-mentioned foundation desirable embodiment of the present invention, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (6)
1. novel three cored steel belt armoured cables, it is characterized in that: comprise three metallic conductors (1), each metallic conductor (1) is coated with conductor shield (2), conductor shield (2) is coated with insulating barrier (3), insulating barrier (3) is coated with insulation screen (4), insulation screen (4) is coated with copper strips screen (5), copper strips screen (5) peripheral hardware has nonwoven layer (6), the outer inner restrictive coating (9) that is provided with of nonwoven layer (6), inner restrictive coating (9) is outer to be provided with external sheath layer (7), is provided with steel-tape armouring (10) between inner restrictive coating (9) and the external sheath layer (7).
2. a kind of novel three cored steel belt armoured cables according to claim 1 is characterized in that: be equipped with packed layer (8) between the copper strips screen (5) that described each metallic conductor (1) is outer and the nonwoven layer (6) and between the copper strips screen (5) outside each metallic conductor (1).
3. a kind of novel three cored steel belt armoured cables according to claim 1 is characterized in that: the cross section of described each metallic conductor (1) is for circular.
4. a kind of novel three cored steel belt armoured cables according to claim 1, it is characterized in that: described each metallic conductor (1) is copper core or aluminium core.
5. a kind of novel three cored steel belt armoured cables according to claim 1, it is characterized in that: the material of described insulating barrier (3) is crosslinked polyethylene.
6. a kind of novel three cored steel belt armoured cables according to claim 1, it is characterized in that: the material of described external sheath layer (7) and inner restrictive coating (9) is polyvinyl chloride or polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210050372 CN103295692A (en) | 2012-02-29 | 2012-02-29 | Novel three-core steel-band-armored cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210050372 CN103295692A (en) | 2012-02-29 | 2012-02-29 | Novel three-core steel-band-armored cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103295692A true CN103295692A (en) | 2013-09-11 |
Family
ID=49096413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210050372 Pending CN103295692A (en) | 2012-02-29 | 2012-02-29 | Novel three-core steel-band-armored cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103295692A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871670A (en) * | 2014-03-28 | 2014-06-18 | 江苏荣宜电缆有限公司 | Double-insulated and double-shielded metal armored cable |
-
2012
- 2012-02-29 CN CN 201210050372 patent/CN103295692A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871670A (en) * | 2014-03-28 | 2014-06-18 | 江苏荣宜电缆有限公司 | Double-insulated and double-shielded metal armored cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |