CN2927270Y - High-temperature-resisting 35KV and below cable - Google Patents
High-temperature-resisting 35KV and below cable Download PDFInfo
- Publication number
- CN2927270Y CN2927270Y CN 200620071148 CN200620071148U CN2927270Y CN 2927270 Y CN2927270 Y CN 2927270Y CN 200620071148 CN200620071148 CN 200620071148 CN 200620071148 U CN200620071148 U CN 200620071148U CN 2927270 Y CN2927270 Y CN 2927270Y
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- CN
- China
- Prior art keywords
- cable
- nitrogen
- metal tube
- high temperature
- temperature resistant
- 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 - Lifetime
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Abstract
The utility model discloses a temperature withstanding 35KV and below cable, belonging to a technology field of cable material, which comprises an ordinary cable, the ordinary cable is armored outside with a nitrogen-filled metal tube, the nitrogen-filled metal tube is communicated with the nitrogen production instrument and the controlling system of the nitrogen production instrument through the liquid nitrogen tank of the cable terminal, the nitrogen-filled metal tube is also provided with a high strength fire mica tape and a protective layer armored by the woven stainless steel wire in ordinal, the ordinary cable is armored outside with a nitrogen-filled metal tube, the exorbitant temperature of the cable can be cooled by the hydronitrogen, and the cable can be controlled under the safe temperature, ensuring the security of the cable, and improving the period of usage.
Description
Technical field
The utility model relates to a kind of cable, belongs to the CABLE MATERIALS technical field, refers in particular to a kind of high temperature resistant 35KV and following cable.
Background technology
Present common power cable and control cable are influenced by Insulation Material generally, maximum operation (service) temperature is subjected to bigger restriction, and cable itself does not have the temperature adjusting facility, too high or be subjected to the influence of external high temperature when the cable self-temperature, its heat can't in time discharge, cable assembly particularly insulating barrier subjects to destroy, and the cable blast can take place when serious.
Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency; the fire resistant power cable that can in time take away the cable heat is provided; main innovation be with common cable stranded after; fill the nitrogen metal tube at its armoured one deck; under high-temperature condition, discharge the heat of taking away cable and reach high temperature resistant purpose by filling nitrogen in the nitrogen metal tube; specifically implement like this: high temperature resistant 35KV and following cable; comprise common cable; it is characterized in that the armoured one deck of common cable fills the nitrogen metal tube; the described nitrogen metal tube that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen metal tube and is provided with the high-strength fire-retardant mica tape outward successively; stainless steel wire braiding armouring protective layer.When cable itself produces heat or cable surface and is subjected to temperatures involved, when if cable temperature surpasses set point, automatically operate by control system, nitrogen is poured the cooling that circulates in the metal tube, thereby guarantee the good temperature constant state of cable, the utility model is to select the diameter of cooling copper tube and use radical according to the size of the cross-section of cable.
Common cable of the present utility model can be single core common cable, also can be multicore cable.Single core common cable is by copper in-core conductor, insulating barrier, copper strips shielding, high temperature resistant filling tape and the stainless steel band armouring is wrapped constitutes, and the stainless steel band of single core common cable is equipped with the inner covering isolation with filling between the nitrogen metal tube.Outsourcing high-temperature resistant inner lining layer behind the stranded stranding of each core of multicore cable, cable body are with high temperature resistant inserts filling, and inner covering external application stainless steel band armouring is wrapped.
Filling the nitrogen metal tube in the utility model preferably is seamless copper pipe, also can be steel pipe, compo pipe etc.
The utility model can cool off the too high temperature of cable at the armoured nitrogen metal tube that fills of common cable by nitrogen, and cable is in the safe temperature all the time, has guaranteed the fail safe of cable, and be improved its useful life.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment 2.
Embodiment
Embodiment 2; high temperature resistant 35KV of multicore and following control cable; multicore general control cable is by copper in-core conductor 1; insulating barrier 2; copper strips shielding 3 is formed; outsourcing inner covering 4 behind the stranded stranding of each core; the cable body is with high temperature resistant inserts 10 fillings; inner covering 4 external application stainless steel band armourings wrapped 5; stainless steel band armouring wrapped 5 outer inner covering 6 other armouring one decks of back that extrude again fill nitrogen alloy tube 7; the described nitrogen alloy tube 7 that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen alloy tube 7 outer high-strength fire-retardant mica tapes 8 that are provided with successively; stainless steel wire braiding armouring protective layer 9.
Claims (6)
1. high temperature resistant 35KV and following cable; comprise common cable; it is characterized in that the armoured one deck of common cable fills the nitrogen metal tube; the described nitrogen metal tube that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen metal tube and is provided with high-strength fire-retardant mica tape, stainless steel wire braiding armouring protective layer outward successively.
2. high temperature resistant 35KV according to claim 1 and following cable is characterized in that common cable is single core common cable or multicore cable.
3. according to claim 2, it is characterized in that single core common cable is by copper in-core conductor, insulating barrier, copper strips shielding, high temperature resistant filling tape and the stainless steel band armouring is wrapped constitutes.
4. according to the high temperature resistant 35KV and the following cable of claim 3, it is characterized in that the stainless steel band of single core common cable and fill being equipped with inner covering between the nitrogen metal tube and isolating.
5. high temperature resistant 35KV according to claim 2 and following cable is characterized in that outsourcing inner covering behind the stranded stranding of each core of multicore cable, and the cable body is with high temperature resistant inserts filling, and inner covering external application stainless steel band armouring is wrapped.
6. high temperature resistant 35KV according to claim 1 and following cable, it is characterized in that filling the nitrogen metal tube is seamless copper pipe or steel pipe or compo pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071148 CN2927270Y (en) | 2006-05-01 | 2006-05-01 | High-temperature-resisting 35KV and below cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071148 CN2927270Y (en) | 2006-05-01 | 2006-05-01 | High-temperature-resisting 35KV and below cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927270Y true CN2927270Y (en) | 2007-07-25 |
Family
ID=38281523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620071148 Expired - Lifetime CN2927270Y (en) | 2006-05-01 | 2006-05-01 | High-temperature-resisting 35KV and below cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927270Y (en) |
-
2006
- 2006-05-01 CN CN 200620071148 patent/CN2927270Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |