CN108878033A - A kind of voltage rating 0.6-1kV and following fireproof power cable - Google Patents
A kind of voltage rating 0.6-1kV and following fireproof power cable Download PDFInfo
- Publication number
- CN108878033A CN108878033A CN201810540091.6A CN201810540091A CN108878033A CN 108878033 A CN108878033 A CN 108878033A CN 201810540091 A CN201810540091 A CN 201810540091A CN 108878033 A CN108878033 A CN 108878033A
- Authority
- CN
- China
- Prior art keywords
- inner sheath
- layer
- outside
- cable
- ceramic polyolefin
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/187—Sheaths comprising extruded non-metallic layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
Landscapes
- Insulated Conductors (AREA)
Abstract
The present invention relates to field of cable technology,Specifically a kind of voltage rating 0.6-1kV and following fireproof power cable,Including cable core,The cable core includes several annealing copper conductors,The ethylene propylene rubber insulated layer being extruded in outside annealing copper conductor,The outside of the ethylene propylene rubber insulated layer is extruded with can ceramic polyolefin inner sheath,It is described can the cross section of ceramic polyolefin inner sheath be the rectangle with arc transition,It is described can the outside of ceramic polyolefin inner sheath be surrounded with metal knitted shielded layer,The outside of the metal knitted shielded layer is surrounded with composite fibre buffer layer,The outside of the composite fibre buffer layer is provided with metal armor layers,The outside of the metal armor layers is extruded with crosslinked polyethylene oversheath,Using rectangle can ceramic polyolefin as inner sheath,It can ensure the relative stability inside cable,Simultaneously in the case of fire,Inner sheath can ceramic,Ensure the signal transmission of cable within a certain period of time,Fire resistance is good.
Description
Technical field
The present invention relates to field of cable technology, specifically a kind of voltage rating 0.6-1kV and following fireproof power cable.
Background technique
Fire-resisting cable refers to the cable that certain time safe operation is able to maintain in flame combustion, country of China mark
Fire resistance test is divided to A, B two kinds of ranks by quasi- GB12666.6, A grades 950-1000 DEG C of flame temperature, is continued for fiery time 90min；B
750-800 DEG C of flame temperature of grade continues for fiery time 90min, and during entire test, sample should bear specified electricity as defined in product
Pressure value, fire-resisting cable be widely used in skyscraper, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises etc. with
Fire safety and the related place of fire-extinguishing and lifesaving, for example, fire-fighting equipment and promptly to the power supply line of the emergency services such as leading lights and
Route is controlled, in the case of fire, is provided safeguard for the transmission of stablizing of signal.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of voltage rating 0.6-1kV and following fireproof power cable.
A kind of voltage rating 0.6-1kV and following fireproof power cable, including cable core, the cable core include several
Mutually twisted annealing copper conductor, the ethylene propylene rubber insulated layer being extruded in outside annealing copper conductor, described is ethylene propylene rubber insulated
The outside of layer be extruded with can ceramic polyolefin inner sheath, it is described can the cross section of ceramic polyolefin inner sheath be with circle
The rectangle of arc transition, it is described can the outside of ceramic polyolefin inner sheath be surrounded with metal knitted shielded layer, the metal
The outside of woven shield is surrounded with composite fibre buffer layer, and the outside of the composite fibre buffer layer is provided with metal armouring
Layer, the outside of the metal armor layers is extruded with crosslinked polyethylene oversheath.
The ethylene propylene rubber insulated layer and can between ceramic polyolefin inner sheath, can ceramic polyolefin inner sheath with
The stretch cord for improving curvature inside cable is provided between metal knitted shielded layer.
The ethylene propylene rubber insulated layer and can the stretch cord between ceramic polyolefin inner sheath be provided with two groups, every group
4；It is described can the stretch cord 1 between ceramic polyolefin inner sheath and metal knitted shielded layer be provided with two groups, every group 3
Root.
The ethylene propylene rubber insulated layer and can between ceramic polyolefin inner sheath, can ceramic polyolefin inner sheath with
It is provided between metal knitted shielded layer, between annealing copper conductor and ethylene propylene rubber insulated layer for playing filled cable and increasing
Add the filled layer of compressive property, the filled layer is that rubber block and glass fibre belt are combined.
The metal knitted shielded layer is fire-resistant waterproof mica tape, the braiding of steel band, aluminium strip is made.
The beneficial effects of the invention are as follows：Using rectangle can ceramic polyolefin as inner sheath, can ensure inside cable
Relative stability, while in the case of fire, inner sheath can ceramic, ensure the signal transmission of cable within a certain period of time,
Fire resistance is good.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is schematic view of the front view of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below it is right
The present invention is further described.
As shown in Figure 1, a kind of voltage rating 0.6-1kV and following fireproof power cable, including cable core, the cable
The ethylene propylene rubber insulated layer 6 that core includes several mutually twisted annealing copper conductors 8, is extruded in outside copper conductor 8 of annealing, it is described
The outside of ethylene propylene rubber insulated layer 6 be extruded with can ceramic polyolefin inner sheath 5, described can ceramic polyolefin inner sheath 5
Cross section be the rectangle with arc transition, it is described can ceramic polyolefin inner sheath 5 outside be surrounded with it is metal knitted
Shielded layer 2, the outside of the metal knitted shielded layer 2 are surrounded with composite fibre buffer layer 3, the composite fibre buffer layer
3 outside is provided with metal armor layers 2, and the outside of the metal armor layers 2 is extruded with crosslinked polyethylene oversheath 9.
Using rectangle can ceramic polyolefin as inner sheath, can ensure the relative stability inside cable, at the same
When fire occurs, inner sheath can ceramic, ensure the signal transmission of cable within a certain period of time, fire resistance is good.
The ethylene propylene rubber insulated layer 6 and can between ceramic polyolefin inner sheath 5, can ceramic polyolefin inner sheath
The stretch cord 1 for improving curvature inside cable is provided between 5 and metal knitted shielded layer 2.
The curvature inside cable can be improved in the stretch cord 1, convenient for the transport, laying and use of heavy construction.
The ethylene propylene rubber insulated layer 6 and can the stretch cord 1 between ceramic polyolefin inner sheath 5 be provided with two groups,
Every group 4；It is described can the stretch cord 1 between ceramic polyolefin inner sheath 5 and metal knitted shielded layer 2 be provided with two groups,
Every group 3.
The ethylene propylene rubber insulated layer 6 and can between ceramic polyolefin inner sheath 5, can ceramic polyolefin inner sheath
It is provided between 5 and metal knitted shielded layer 2, between annealing copper conductor 8 and ethylene propylene rubber insulated layer 6 for playing filling electricity
Cable and the filled layer 7 for increasing compressive property, the filled layer 7 are that rubber block and glass fibre belt are combined.
The metal knitted shielded layer 2 is fire-resistant waterproof mica tape, the braiding of steel band, aluminium strip is made.
For the count of the metal knitted shielded layer 2 80% or more, advantages of good shielding performance utilizes fire-resistant waterproof mica
Band carries out transition fit, and weave effect is good.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (5)
1. a kind of voltage rating 0.6-1kV and following fireproof power cable, including cable core, it is characterised in that：The cable
Core includes several mutually twisted annealing copper conductors (8), is extruded in the external ethylene propylene rubber insulated layer (6) of annealing copper conductor (8),
The outside of the ethylene propylene rubber insulated layer (6) be extruded with can ceramic polyolefin inner sheath (5), described can ceramic polyene
The cross section of hydrocarbon inner sheath (5) is the rectangle with arc transition, it is described can ceramic polyolefin inner sheath (5) outside around
It is surrounded by metal knitted shielded layer (2), the outside of the metal knitted shielded layer (2) is surrounded with composite fibre buffer layer (3), institute
The outside for the composite fibre buffer layer (3) stated is provided with metal armor layers (2), and the outside of the metal armor layers (2) extrudes
Crosslinking polyethylene outer sheath (9).
2. a kind of voltage rating 0.6-1kV according to claim 1 and following fireproof power cable, it is characterised in that：Institute
The ethylene propylene rubber insulated layer (6) stated and can between ceramic polyolefin inner sheath (5), can ceramic polyolefin inner sheath (5) with
The stretch cord (1) for improving curvature inside cable is provided between metal knitted shielded layer (2).
3. a kind of voltage rating 0.6-1kV according to claim 2 and following fireproof power cable, it is characterised in that：Institute
The ethylene propylene rubber insulated layer (6) stated and can the stretch cord (1) between ceramic polyolefin inner sheath (5) be provided with two groups, every group 4
Root；It is described can the stretch cord (1) between ceramic polyolefin inner sheath (5) and metal knitted shielded layer (2) be provided with two groups,
Every group 3.
4. a kind of voltage rating 0.6-1kV according to claim 1 and following fireproof power cable, it is characterised in that：Institute
The ethylene propylene rubber insulated layer (6) stated and can between ceramic polyolefin inner sheath (5), can ceramic polyolefin inner sheath (5) with
Between metal knitted shielded layer (2), it is provided between annealing copper conductor (8) and ethylene propylene rubber insulated layer (6) and is filled out for playing
The filled layer (7) for cable and the increase compressive property of charging, the filled layer (7) are that rubber block and glass fibre belt are combined.
5. a kind of voltage rating 0.6-1kV according to claim 1 and following fireproof power cable, it is characterised in that：Institute
The metal knitted shielded layer (2) stated is fire-resistant waterproof mica tape, the braiding of steel band, aluminium strip is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540091.6A CN108878033A (en) | 2018-05-30 | 2018-05-30 | A kind of voltage rating 0.6-1kV and following fireproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540091.6A CN108878033A (en) | 2018-05-30 | 2018-05-30 | A kind of voltage rating 0.6-1kV and following fireproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108878033A true CN108878033A (en) | 2018-11-23 |
Family
ID=64335827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810540091.6A Pending CN108878033A (en) | 2018-05-30 | 2018-05-30 | A kind of voltage rating 0.6-1kV and following fireproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108878033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741873A (en) * | 2019-02-27 | 2019-05-10 | 芜湖鼎汉轨道交通装备有限公司 | A kind of reinforced high temperature power cable of braiding |
-
2018
- 2018-05-30 CN CN201810540091.6A patent/CN108878033A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741873A (en) * | 2019-02-27 | 2019-05-10 | 芜湖鼎汉轨道交通装备有限公司 | A kind of reinforced high temperature power cable of braiding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181123 |
|
| WD01 | Invention patent application deemed withdrawn after publication |