CN203397754U - High current-carrying capacity low conduction temperature fireproof electric power flexible cable - Google Patents
High current-carrying capacity low conduction temperature fireproof electric power flexible cable Download PDFInfo
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- CN203397754U CN203397754U CN201320046797.XU CN201320046797U CN203397754U CN 203397754 U CN203397754 U CN 203397754U CN 201320046797 U CN201320046797 U CN 201320046797U CN 203397754 U CN203397754 U CN 203397754U
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- electric power
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- carrying capacity
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Abstract
The utility model discloses a high current-carrying capacity low conduction temperature fireproof electric power flexible cable. The high current-carrying capacity low conduction temperature fireproof electric power flexible cable comprises three copper conductors. The outer surface of each of the copper conductors is coated with a fireproof insulating layer. The three copper conductors are intertwisted to form a cable core. A ceramic composite band is wound around the outer surface of the cable core. The outer surface of the ceramic composite band is coated with a high thermal resistance polyolefin sheath layer. The cross section of each copper conductor is 16-240 mm<2>. The pitch diameter ratio of the cable formed by the three copper conductors is 8 to 12 mm. Each copper conductor is formed by intertwisting multiple copper wires. The high current-carrying capacity low conduction temperature fireproof electric power flexible cable is advantageous in that the diameters of the copper conductors are reduced; a large amount of heat generated by the copper conductors are blocked in the cable core; and therefore, the temperature on the surface of the sheath layer is guaranteed not to exceed 70 DEG C.
Description
Technical field
The utility model relates to high current-carrying capacity fire resistant electric power cable, also relates to the low conduction temperature of this high current-carrying capacity fire resistant electric power flexible cable.
Background technology
In ocean engineering field, island engineering field, especially there is the field, naval vessel of national defence purposes, be all furnished with the accident net electric energy transmitting of emergency start while having an accident, to ensure the electric power transfer of relevant device.At present, what such cable was used is all fire-retardant class cables, and that specification is approximately used is 3*70, and external diameter is greatly about 40.0mm left and right, ampacity is in 150A left and right, due to, temperature requirement is very strict, because after there is emergency, need to cable be hauled out to reel with hand, and insert related system, and temperature is too high, and hand is taken incessantly, and jacket surface temperature does not allow over 70 ℃.
How specification is changed into 3*25, and ampacity is same requires to reach 150A, the same requirement of jacket surface temperature is no more than 70 ℃, and realize accident net cable and change fire safe type into by flame retardant type, have very large technological development difficulty, because (1) ampacity is constant, specification is by 70mm
2be down to 25mm
2time, conductor temp .-elevating can obviously strengthen, and when 50 ℃ of operating ambient temperatures, also can substantially exceed 70 ℃ (we do overtesting with common cable, and temperature is finally at 108 ℃) while reaching the temperature of jacket surface; (2) cable specification reduces at double, and the outside diameter of cable requires to reduce, and current-carrying capacity of cable and jacket surface are temperature-resistant, also require cable to possess fire-resistant function simultaneously, and this is very difficult concerning the realization of cable.
Summary of the invention
First object of the present utility model is to provide the low conduction temperature of a kind of high current-carrying capacity fire resistant electric power flexible cable, when 50 ℃ of operating ambient temperatures, reduced copper conductor diameter, realized most of heat that copper conductor is produced and be locked in cable core, thereby guaranteed that restrictive coating surface temperature is no more than 70 ℃.
For achieving the above object, the technical solution adopted in the utility model is: the low conduction temperature of a kind of high current-carrying capacity fire resistant electric power flexible cable, comprise three copper conductors, this copper conductor outer surface is coated with refractory insulating layer, three stranded formation one cable cores of copper conductor, one ceramic composite band is wrapped in described cable core outer surface, and a high thermal resistance polyolefin jacket layer is coated on described ceramic composite band outer surface, and the sectional area of described copper conductor is 16～240mm
2, the lay ratio of described three copper conductor strandings is 8～12mm.
In technique scheme, further improved technical scheme is as follows:
1. in such scheme, in described copper conductor, the lay ratio of copper wire stranding is 12～14mm.
2. in such scheme, described copper conductor is by some stranded the forming of copper wire.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The low conduction temperature of the utility model high current-carrying capacity fire resistant electric power flexible cable, stranded formation one cable core of its three copper conductors, one ceramic composite band is wrapped in described cable core outer surface, and a high thermal resistance polyolefin jacket layer is coated on described ceramic composite band outer surface, and the sectional area of copper conductor is 16～240mm
2, the lay ratio of three copper conductor strandings is 8～12mm; Make that this cable specification number doubly reduces, ampacity is constant when being still decreased to 30mm and being diminished by 40mm for 150A, external diameter, at 50 ℃ of operating ambient temperatures, jacket surface temperature is no more than 70 ℃, the properties of cable meets the requirement in standard completely simultaneously, and makes cable possess fire-retardant and fire resistance simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is the low conduction temperature of the utility model high current-carrying capacity fire resistant electric power soft cable structure schematic diagram.
In above accompanying drawing: 1, copper conductor; 2, refractory insulating layer; 3, cable core; 4, ceramic composite band; 5, high thermal resistance polyolefin jacket layer.
Embodiment
Embodiment 1: the low conduction temperature of a kind of high current-carrying capacity fire resistant electric power flexible cable, comprise three copper conductors 1, this copper conductor 1 outer surface is coated with refractory insulating layer 2, three stranded formation one cable cores 3 of copper conductor 1, one ceramic composite band 4 is wrapped in described cable core 3 outer surfaces, one high thermal resistance polyolefin jacket layer 5 is coated on described ceramic composite band 4 outer surfaces, and the sectional area of described copper conductor 1 is 35mm
2, the lay ratio of described three copper conductor 1 strandings is 8mm.
In above-mentioned copper conductor 1, the lay ratio of copper wire stranding is 13mm.
Above-mentioned copper conductor 1 is by stranded the forming of copper wire of some.
Embodiment 2: the low conduction temperature of a kind of high current-carrying capacity fire resistant electric power flexible cable, comprise three copper conductors 1, this copper conductor 1 outer surface is coated with refractory insulating layer 2, three stranded formation one cable cores 3 of copper conductor 1, one ceramic composite band 4 is wrapped in described cable core 3 outer surfaces, one high thermal resistance polyolefin jacket layer 5 is coated on described ceramic composite band 4 outer surfaces, and the sectional area of described copper conductor 1 is 200mm
2, the lay ratio of described three copper conductor 1 strandings is 11mm.
In above-mentioned copper conductor 1, the lay ratio of copper wire stranding is 12mm.
Above-mentioned copper conductor 1 is by stranded the forming of copper wire of some.
While adopting the low conduction temperature of high current-carrying capacity fire resistant electric power flexible cable, stranded formation one cable core of its three copper conductors, one ceramic composite band is wrapped in described cable core outer surface, and a high thermal resistance polyolefin jacket layer is coated on described ceramic composite band outer surface, and the sectional area of described copper conductor is 16～240mm
2, the lay ratio of described three copper conductor strandings is 8～12mm; Make that this cable specification number doubly reduces, ampacity is constant when being still decreased to 30mm and being diminished by 40mm for 150A, external diameter, at 50 ℃ of operating ambient temperatures, jacket surface temperature is no more than 70 ℃, the properties of cable meets the requirement in standard completely simultaneously, and makes cable possess fire-retardant and fire resistance simultaneously.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (3)
1. the low conduction temperature of a high current-carrying capacity fire resistant electric power flexible cable, it is characterized in that: comprise three copper conductors (1), this copper conductor (1) outer surface is coated with refractory insulating layer (2), stranded formation one cable cores of three copper conductors (1) (3), one ceramic composite band (4) is wrapped in described cable core (3) outer surface, one high thermal resistance polyolefin jacket layer (5) is coated on described ceramic composite band (4) outer surface, and the sectional area of described copper conductor (1) is 16～240mm
2, the lay ratio of described three copper conductors (1) stranding is 8～12mm.
2. the low conduction temperature of high current-carrying capacity according to claim 1 fire resistant electric power flexible cable, is characterized in that: in described copper conductor (1), the lay ratio of copper wire stranding is 12～14mm.
3. the low conduction temperature of high current-carrying capacity according to claim 1 fire resistant electric power flexible cable, is characterized in that: described copper conductor (1) is by stranded the forming of copper wire of some.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320046797.XU CN203397754U (en) | 2013-01-29 | 2013-01-29 | High current-carrying capacity low conduction temperature fireproof electric power flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320046797.XU CN203397754U (en) | 2013-01-29 | 2013-01-29 | High current-carrying capacity low conduction temperature fireproof electric power flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397754U true CN203397754U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320046797.XU Expired - Fee Related CN203397754U (en) | 2013-01-29 | 2013-01-29 | High current-carrying capacity low conduction temperature fireproof electric power flexible cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN203397754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9093194B2 (en) | 2009-07-16 | 2015-07-28 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
-
2013
- 2013-01-29 CN CN201320046797.XU patent/CN203397754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9093194B2 (en) | 2009-07-16 | 2015-07-28 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150129 |
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| EXPY | Termination of patent right or utility model |