CN2528081Y - Power electrical cable for drilling - Google Patents
Power electrical cable for drilling Download PDFInfo
- Publication number
- CN2528081Y CN2528081Y CN 01279762 CN01279762U CN2528081Y CN 2528081 Y CN2528081 Y CN 2528081Y CN 01279762 CN01279762 CN 01279762 CN 01279762 U CN01279762 U CN 01279762U CN 2528081 Y CN2528081 Y CN 2528081Y
- Authority
- CN
- China
- Prior art keywords
- cable
- conductors
- utility
- stranded
- drilling
- 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
Disclosed is a power cable for drilling, which belongs to the cable manufacture technical field. The utility model solves the weakness that the diameter of the common power cable is larger and the softness is worse relatively. The power cable for drilling is composed of conductors and an insulating layer, the improvement is that the cable conductors are a plurality strands of conductors twisted together, and every strand of conductors is a plurality of wires twisted together. The plurality strands and every strand are twisted in the same direction. The utility model can be used in high temperature environment, the cable is soft; the outer diameter of the utility model is smaller than that of the cable with the same section in 8 to 10 percent; the utility model has the advantage of big insulation resistance, low temperature resistance, oil resistance, flame resistance, low smoke and low halogen, which is particularly suitable to be used as the cable for oil drilling, oil platform and marine ships.
Description
Technical field
The utility model belongs to the cables manufacturing technical field, particularly relates to a kind of technology of preparing of drilling with power cable.
Background technology
At present, as the copper cash of the no coating of power cable conductor employing that transmits electric energy, because the usual forces cable is not done requirement to flexibility, therefore, line diameter is bigger, and lay ratio is also bigger.When conductor is stranded simultaneously, be that direction is opposite between adjacent layer, make the construction of cable stable like this, simultaneously, moment of torsion is cancelled each other, but flexibility is relatively poor relatively.
Summary of the invention
The utility model provides a kind of probing power cable for solving the problem that existing known technology exists.This cable particularly suitable is done oil drilling, oil platform and marine ship cable.
The utility model power cable, conductor has following characteristics: 1. conductor adopts tinned wird, purpose prevent high-temperature oxydation 2. conductor adopt little lay ratio (10-12), purpose improves the cable flexibility, 3. conductor adopts stranded in the same way. press simultaneously, purpose guarantees the best flexibility of cable, minimum outer diameter (outside diameter of cable decline 8-10%)
The purpose of this utility model is achieved in that single line all adopts zinc-plated in order to prevent conductor oxidation when the high temperature.In order to increase the cable flexibility, line diameter adopts than minor diameter (0.25-0.51mm), adopts left-hand when shallow bid is stranded, lay ratio is (18-20), thigh is stranded with thigh also to be left-hand, and lay ratio is (10-12), and outermost layer adopts three road calender rollers to conductor compacting simultaneously.Make the conductor softness owing to stranded in the same way, but structural stability poor (occurring oval easily) also should add setting roll integer again for this reason when extruding insulation.
After last operation, after interior insulation and external insulation are once extruded, carry out crosslinkedly again, just produce finished cable.
The utility model adopts following technical scheme:
Probing has conductor and insulating barrier to constitute with power cable, and its improvement is that cable conductors is several strands of stranded conductors, and per share conductor is several stranded conductors, and several strands with per share in the same way stranded.
The utility model can also adopt following technical measures:
Above-mentioned probing power cable is characterized in single diameter of wire 0.25-0.51mm, and the stranded lay ratio of shallow bid is 18-20, and thigh is stranded in the same way stranded with shallow bid with thigh, and lay ratio is 10-12.
Above-mentioned probing power cable is characterized in that conductor is a tinned wird.
Description of drawings
Fig. 1 is the utility model structural representation.
Advantage and the good effect that the utlity model has are: 1. conductor can stand to use under the hot environment.2. cable have flexibility 3. than with uiform section power cable external diameter little (little 8-10%) 4. because interior insulation resistance is big, low temperature resistant, characteristics such as oil resistant (mineral oil, diesel oil), fire-retardant, low-smoke low-halogen are the cables that is suitable for oil drilling, oil platform and marine ship.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following example now, and conjunction with figs. is described in detail as follows:
Embodiment
With reference to accompanying drawing 1, probing with the power cable structure be cable conductor 3 by stranded the forming of 19 shallow bid conductors, 4 left-hands, per share conductor 4 is by 7 stranded forming of tinned wird left-hand, 19 shallow bid conductors 4 and per share tinned wird direction of lay are left-hand.This product is fit to do the cable of oil drilling, oil platform and marine ship.
Claims (3)
1. probing has conductor and insulating barrier to constitute with power cable, and it is characterized in that: cable conductors is several strands of stranded conductors, and per share conductor is several stranded single lines, and several strands with per share in the same way stranded.
2. probing power cable according to claim 1 is characterized in that: single diameter of wire 0.25-0.51mm, and the stranded lay ratio of shallow bid is 18-20, and thigh is stranded in the same way stranded with shallow bid with thigh, and lay ratio is 10-12.
3. probing power cable according to claim 1 is characterized in that: conductor is a tinned wird.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279762 CN2528081Y (en) | 2001-12-30 | 2001-12-30 | Power electrical cable for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279762 CN2528081Y (en) | 2001-12-30 | 2001-12-30 | Power electrical cable for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528081Y true CN2528081Y (en) | 2002-12-25 |
Family
ID=33682927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01279762 Expired - Fee Related CN2528081Y (en) | 2001-12-30 | 2001-12-30 | Power electrical cable for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528081Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332336A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Heat-resistant shielded power cable for nuclear power stations |
| CN102332331A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Heat-resistant control cable utilized by nuclear power station |
-
2001
- 2001-12-30 CN CN 01279762 patent/CN2528081Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332336A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Heat-resistant shielded power cable for nuclear power stations |
| CN102332331A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Heat-resistant control cable utilized by nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |