CN202487229U - Large-length undersea three-core cable - Google Patents
Large-length undersea three-core cable Download PDFInfo
- Publication number
- CN202487229U CN202487229U CN2012200792454U CN201220079245U CN202487229U CN 202487229 U CN202487229 U CN 202487229U CN 2012200792454 U CN2012200792454 U CN 2012200792454U CN 201220079245 U CN201220079245 U CN 201220079245U CN 202487229 U CN202487229 U CN 202487229U
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- China
- Prior art keywords
- cable
- power transmission
- seabed
- core
- protective sleeve
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Abstract
The utility model relates to a large-length undersea three-core cable. The large-length undersea three-core cable comprises three electricity transmission cables of the same structure, and further comprises at least one fiber-optic cable. The electricity transmission cables and the fiber-optic cable are all wrapped in a cable protecting sleeve. Compared with the prior art, the large-length undersea three-core cable has the advantages of being good in mechanical performance, low in cost, convenient to transport, and the like.
Description
Technical field
The utility model relates to a kind of submarine cable, especially relates to a kind of length seabed three-core cable.
Background technology
Submarine cable is the subaqueous cable in seabed and river that is laid in, and divides submarine communication cable and sea electric power cable.Submarine communication cable is mainly used in communication traffic, expensive, but privacy degrees is high.Sea electric power cable is mainly used in and transmits high-power electric energy under water, is equal to the effect of underground power cable, and the occasion of only using is different with the mode of laying.Sea electric power cable lays and is mainly used between the island, land, crosses rivers or bay, from mutual connection between land connection drilling platforms or drilling platforms etc.In the ordinary course of things, the overhead wire than same length is expensive undoubtedly to use the submarine cable electric energy transmitting, but often more economical than do the provincialism generating with little and isolated power station with it, use benefit in the offshore area more.In the more country in island and river, this kind cable application is more extensive.
Usually submarine communication cable and power cable separate; Patent of invention ZL200810092605.2 discloses a kind of submarine cable that comprises lead stuffing; The cable tube of submarine cable is by the weight filling in this structure; Rather than as in conventional art on the excircle of the cable tube of submarine cable fixing weight so that submarine cable can sink to the seabed, prevent the fracture or the damage of submarine cable thus effectively.This submarine cable is by following structure construction; A plurality of power cables and telecommunication cable are arranged in the cable tube with cylindrical shape in this structure; This cable tube has enough intensity and suitable flexible, and the remaining space of cable tube is filled by the withstand voltage filler of keeping out the seabed high pressure.This submarine cable comprises with power cable and telecommunication cable and is arranged in the lead stuffing in the cable tube, and each lead stuffing is through using rope and connect lead with the sausage connected mode and utilizing oversheath to cover connected lead and make.
Also have telecommunication cable and power cable be set together; Novel ZL 200720109617.2 discloses a kind of high pressure submarine cable like practicality; Comprise the conductor, insulating barrier, resilient coating, plumbous cover, sheath, inner covering, happy dress layer and the serving that set gradually from inside to outside, characteristics are to be embedded with at least one optical cable unit in the sheath; Advantage is that the optical cable unit is embedded in sheath; The optical cable unit receives the protection of sheath and can not be crushed because of the extruding of outside; Thereby guaranteed the transmission performance of optical fiber, and the thickness of sheath can obtain best cost performance during than the thick 1.5mm of diameter of optical cable unit; The optical cable unit adopts the stainless steel sleeve pipe, and is not only convenient and practical but also safe and reliable; In addition, the structure of whole cable has been saved manufacturing greatly and laid expense, can be used for transferring electric power, can be used for the transmission communication signal again, and is of many uses.
But above-mentioned cable weight is big, bears the ability of mechanical pressure, and production cost is high, and the cross section external diameter is big and transportation is inconvenient.
Summary of the invention
The purpose of the utility model is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of good mechanical property, cost are low, the length seabed three-core cable of convenient transportation.
The purpose of the utility model can realize through following technical scheme: a kind of length seabed three-core cable; It is characterized in that; Comprise the power transmission cable that three root architectures are identical, also comprise at least one fiber optic cables, described power transmission cable and fiber optic cables are wrapped in the cable protective sleeve.
Described power transmission cable is core with the copper conductors, at the outer surface of copper conductors coating conductor screen, insulating barrier, insulation screen, zone of swelling, aluminum alloy sheath and internal layer sheath successively.
Described conductor shield is coated on the conductor equably, is the ultra-smooth crosslinkable section bar bed of material; Described insulating barrier is the crosslinked polyethylene layer; Described insulation screen is the crosslinkable section bar bed of material, and thickness is 0.8～1.0mm.
Be provided with filler between power transmission cable that described three root architectures are identical and the cable protective sleeve.
Described fiber optic cables are arranged between three power transmission cables and the cable protective sleeve, are provided with filler between fiber optic cables and power transmission cable and the cable protective sleeve.
Described cable protective sleeve is for being that core is at its outer surface coating and bonding agent layer successively, armouring bed course, armour and external sheath layer with three power transmission cables.
Described armour is to tie the zinc-plated thicker wire of scratching as spiral, and described external sheath layer is the polypropylene fibre layer.
Compared with prior art, the utility model adopts three core power transmission cables and fiber optic cables to merge and is provided with under the situation that the cross section external diameter does not increase; Good combination property, cable weight is lighter relatively, and the ability of bearing mechanical pressure is good; And production cost is lower, convenient transportation.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model cable.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
As shown in Figure 1, a kind of length seabed three-core cable comprises the power transmission cable that three root architectures are identical, also comprises at least one fiber optic cables, and described power transmission cable and fiber optic cables are wrapped in the cable protective sleeve.
Described power transmission cable is a core with copper conductors 1, at the outer surface of copper conductors coating conductor screen 2, insulating barrier 3, insulation screen 4, zone of swelling 5, aluminum alloy sheath 6 and internal layer sheath 7 successively.
Described conductor shield 2 is coated on the conductor 1 equably, conductor shield 2 by the semiconductive band with extrude semi-conductive layer and form.The semiconductive material should adopt ultra-smooth crosslinkable type material, and conductor shield 2 should wrap multiple on conductor equably, and smooth surface does not have obvious twisted wire burr, wedge angle, particle burns or abrasive vestige.Insulation screen 4 is for extruding semi-conductive layer, and the semiconductive material that extrudes also should be the crosslinkable type material.Extrude semi-conductive layer thickness and should be 0.8～1.0mm;
Be provided with filler 9 between power transmission cable that described three root architectures are identical and the cable protective sleeve.Described fiber optic cables 8 are arranged between three power transmission cables and the cable protective sleeve, are provided with filler 9 between fiber optic cables 8 and power transmission cable and the cable protective sleeve.
Described cable protective sleeve is for being that core is at its outer surface coating and bonding agent layer 10 successively, armouring bed course 11, armour 12 and external sheath layer 13 with three power transmission cables.Described armour 12 is for to tie the zinc-plated thicker wire of scratching as spiral, and described external sheath layer 13 is the polypropylene fibre layer.
The metallic sheath of submarine cable is except increasing the necessary thickness for the protection purpose; Also need take different structure according to the difference in waters; As for being embedded in the submarine cable under the riverbed; Need to adopt alloy sheath or compound cover, need consider the seawater that salinity is higher simultaneously, planktonic organism is taked necessary corrosion-resistant measure to the influence of extra large cable.Cable must have vertical water blocking layer, vertically water blocking layer comprise prevent moisture along the water blocking layer of insulation shielding outer surface longtitudinal dispersion with prevent the water blocking layer of moisture along the conductor longtitudinal dispersion, be applicable to that water-bed environment lays.
Submarine cable will bear bigger mechanical tension, so its armouring generally all adopts zinc-plated thicker wire (more than the 6mm), two layers of steel wire of the also employing that has; Adopt the outer jacket of the polypropylene yarn rope of dipping preservation blends; Submarine cable often manufactures whole cable of length, and though its transportation shape of need turning is the short armouring of steel wire pitch; Can reduce the coiling diameter; But short pitch when in laid processes, receiving bigger tension force (8 times of armouring diameters) knotting under the bottom easily, therefore, general submarine cable armouring pitch is considered at 12～14 times of diameters; In order to reduce the coiling pitch, what have can also adopt short pitch compressor wire or double wire armor (the ectonexine strand is to opposite).
Claims (7)
1. a length seabed three-core cable is characterized in that, comprises the power transmission cable that three root architectures are identical, also comprises at least one fiber optic cables, and described power transmission cable and fiber optic cables are wrapped in the cable protective sleeve.
2. a kind of length according to claim 1 seabed three-core cable; It is characterized in that; Described power transmission cable is core with the copper conductors, at the outer surface of copper conductors coating conductor screen, insulating barrier, insulation screen, zone of swelling, aluminum alloy sheath and internal layer sheath successively.
3. a kind of length according to claim 2 seabed three-core cable is characterized in that described conductor shield is coated on the conductor equably, is the ultra-smooth crosslinkable section bar bed of material; Described insulating barrier is the crosslinked polyethylene layer; Described insulation screen is the crosslinkable section bar bed of material, and thickness is 0.8～1.0mm.
4. a kind of length according to claim 1 seabed three-core cable is characterized in that, is provided with filler between power transmission cable that described three root architectures are identical and the cable protective sleeve.
5. a kind of length according to claim 1 seabed three-core cable is characterized in that described fiber optic cables are arranged between three power transmission cables and the cable protective sleeve, are provided with filler between fiber optic cables and power transmission cable and the cable protective sleeve.
6. a kind of length according to claim 1 seabed three-core cable is characterized in that, described cable protective sleeve is for being that core is at its outer surface coating and bonding agent layer successively, armouring bed course, armour and external sheath layer with three power transmission cables.
7. a kind of length according to claim 6 seabed three-core cable is characterized in that described armour is to tie the zinc-plated thicker wire of scratching as spiral, and described external sheath layer is the polypropylene fibre layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200792454U CN202487229U (en) | 2012-03-05 | 2012-03-05 | Large-length undersea three-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200792454U CN202487229U (en) | 2012-03-05 | 2012-03-05 | Large-length undersea three-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487229U true CN202487229U (en) | 2012-10-10 |
Family
ID=46961633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200792454U Expired - Lifetime CN202487229U (en) | 2012-03-05 | 2012-03-05 | Large-length undersea three-core cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202487229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903442A (en) * | 2012-11-05 | 2013-01-30 | 江苏中辰电缆有限公司 | Optical fiber composite submarine power cable |
-
2012
- 2012-03-05 CN CN2012200792454U patent/CN202487229U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903442A (en) * | 2012-11-05 | 2013-01-30 | 江苏中辰电缆有限公司 | Optical fiber composite submarine power cable |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |