CN202940015U - 400Hz direct-current single-core cable for ship - Google Patents
400Hz direct-current single-core cable for ship Download PDFInfo
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- CN202940015U CN202940015U CN 201220606890 CN201220606890U CN202940015U CN 202940015 U CN202940015 U CN 202940015U CN 201220606890 CN201220606890 CN 201220606890 CN 201220606890 U CN201220606890 U CN 201220606890U CN 202940015 U CN202940015 U CN 202940015U
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Abstract
The utility model relates to a 400Hz direct-current single-core cable for a ship. A control cable inner insulating layer and a control cable outer insulating layer are extruded in the periphery of a control cable conductor to constitute a control cable core, the control cable core and a plurality of power cable conductor beams are intertwisted into a cable core, a power cable insulating layer is extruded in the periphery of the cable core, a colorful inner sheath is extruded in the periphery of the power cable insulating layer, an outer sheath is extruded in the periphery of the colorful inner sheath, each power cable conductor beam is formed by intertwisting a plurality of tinned annealed copper wires of 0.25-0.3mm in the same direction, the intertwist pitch diameter ratio is 10 to 12 times, and the tinned annealed copper wires adopt the category of Class 6 of the IEC60228 standard. The cable has the functions of a power cable and a control cable at the same time, the external diameter dimension and the bending radius are small, and the carrying capacity is large.
Description
Technical field
The utility model relates to a kind of single-core cable, particularly a kind of naval vessel 400Hz direct current single-core cable.
Background technology
That the electric power system of conventional ship equipment adopts is all 50Hz, is consistent with popular corollary equipment etc., is convenient to lectotype selection.But to the light-duty nimbleization development of maximization, high-power and generating set, the change system of 400Hz is used for the large ship equipment gradually at present along with the naval vessel, and requiring has the private cable of 400Hz supporting with it.When the cable of prior art 50Hz was used for the 400Hz system, the resistance of cable can have greatly increased because of the frequency increase, and in use procedure, the circuit voltage drop increases thereby bring, and engineering constraint is realized the expection purpose; If carry out the same current load, adopt the 50Hz cable to need to increase very large cross-sectional area of conductor, cause the increase of cost and expense, and the waste of conductor copper material, and China's a big chunk copper material needs import, does not meet energy-conservation requirement.
Publication number is that the Chinese utility model patent of CN200997323Y discloses a kind of Multi-functional combination cable, comprise power cable core and oversheath, the power cable core comprises power cable conductor and insulating barrier, also comprise the signal controlling cable core, the signal controlling cable core is two groups, every group comprises two core conductors, and every core conductor skin is insulating barrier, and every group of signal controlling cable core skin is the tinned copper wire woven shield; Two groups of signal controlling cable cores and power cable core are symmetrical.
Publication number is the Chinese utility model patent application of CN102446587A; a kind of many cables composite high-voltage power cable is disclosed; high voltage power cable and building-out cable are wrapped in a cable by oversheath, protective layer, inner sheath, form many cables composite high-voltage power cable.Building-out cable can be any one or a few cable of optical cable, radio frequency cable, telecommunication cable, control cables.
Above two patents, although realized the combination of power cable and control cable, but the power cable core is formed by power cable conductor parcel power cable insulation layer, the control cables core is formed by control cables conductor parcel control cables insulating barrier, be that power cable core and control cables core are separate, just be wrapped in an oversheath, so just cause the external diameter of whole cable very large.When being applied to the 400Hz system, or current capacity is not enough, or it is too large to take up space, and can not satisfy the needs of naval vessel 400Hz system.
The utility model content
The purpose of this utility model is, overcomes problems of the prior art, provides a kind of naval vessel with 400Hz direct current single-core cable, has simultaneously the function of power cable and control cable, and outside dimension and bending radius little, ampacity is large.
For realizing above purpose, a kind of naval vessel provided by the utility model 400Hz direct current single-core cable, the periphery of control cables conductor is extruded with the control cables inner insulating layer and the control cables external insulation layer consists of the control cables core, described control cables core and multiply power cable conductor bundle are twisted into cable core, the periphery of described cable core is extruded with power cable insulation layer, the periphery of described power cable insulation layer is extruded with colored inner sheath, and the periphery of described colored inner sheath is extruded with oversheath.
With respect to prior art, the utility model has been obtained following beneficial effect: the utility model with the control cables core directly and power cable conductor Shu Jinhang stranded, broken and respectively had after insulated wire cores again power cable core and control cables core of one's own stranded tradition, greatly reduce the external diameter of whole cable, the control cables core has been obtained well fixing, in the situation that same outer diameter as, greatly improved the current capacity of cable; The control cables conductor adopts double hyer insulation outward and is nested in has avoided copper conductor burr insulation-piercing to cause the interference that control signal is transmitted in power cable insulation layer; Naval vessel narrow space and cable are numerous, certain root cable is damaged and is difficult to tested finding, often needing to pursue root investigates on a large scale, this cable is provided with duplex sheath, is provided with colored inner sheath in oversheath, in case the oversheath cracking occurs or scratch colored inner sheath is exposed, can assert directly that this cable scraps, colour is more eye-catching easily to be identified, and greatly alleviates the difficulty of investigation, saves time.
As preferred version of the present utility model, the zinc-plated annealing copper wire that described power cable conductor bundle is 0.25 ~ 0.3mm by many diameters is restrainted in the same way strand and is formed, and bundle strand lay ratio is 10 ~ 12 times.Adopt diameter to be that the zinc-plated annealed copper tow strand of 0.25 ~ 0.3mm can guarantee after stranding soft, be easy to bending, be convenient to adapt to the space environment on naval vessel; Strand adopts according to the just round compression molding that calculates bundle strand external diameter 98% ~ 99% and carries out pressing mold, can make it more closely knit, further reduces the external diameter of conductor strand.
As preferred version of the present utility model, described zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards.Such copper wire current capacity is large, good mechanical property.
As preferred version of the present utility model, described control cables core has two groups, every group two, four described control cables cores and described power cable conductor bundle twist again and consist of described cable core, multiple strand adopts the direction opposite with self direction of lay of described power cable conductor bundle to carry out, and twisting again lay ratio is 13 ~ 15 times; Every group of described control cables core is symmetrically distributed in the cable core periphery.Two control cables consist of a loop as one group, and two groups are symmetrically distributed in the cable core periphery and have avoided on the one hand producing between two groups of control cables the signal interference; On the other hand because control cables is nested in power cable insulation layer, it is distributed in power cable conductor bundle periphery can be so that its outside heat radiation, and the power cable conductor bundle that is positioned at the cable core center can be delivered to periphery with heat greatly at an easy rate due to the conductive coefficient of metal.
As preferred version of the present utility model, described control cables inner insulating layer is the ethylene propylene rubber insulated layer of high insulation resistance, and described control cables external insulation layer is high heat-resisting ethylene propylene rubber insulated layer.The control cables inner insulating layer adopts high insulation resistance ethylene-propylene rubber to guarantee its insulation property, and the control cables external insulation layer adopts high heat-resisting ethylene-propylene rubber can prevent that the profile of control cables from producing deformation.
As preferred version of the present utility model, described power cable insulation layer is that dielectric constant is not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, the nominal thickness of described power cable insulation layer is 2.0mm, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.Dielectric constant is not more than its good insulation preformance of ethylene-propylene rubber of 2.5, and selecting heat resisting temperature is the current capacity that the ethylene propylene rubber insulated layer of 105 ℃ can improve power cable.
As preferred version of the present utility model, described colored inner sheath is the flame retardant polyurethane inner sheath, and described oversheath is low temperature resistant abrasion resistant polyurethane oversheath, and the thickness that extrudes of described flame retardant polyurethane inner sheath is 50% ~ 60% of sheath gross thickness.In case the oversheath cracking occurs or scratches colored inner sheath is exposed, illustrate that 40% ~ 50% jacket thickness damages, can assert directly that this cable scraps, easily identified, greatly alleviate the difficulty of investigation, save time; Inner sheath adopts flame retardant polyurethane to guarantee fire resistance, and oversheath adopts low temperature resistant abrasion resistant polyurethane to satisfy the abominable operational environment in naval vessel.
Description of drawings
Fig. 1 is the utility model naval vessel with the structural representation of 400Hz direct current single-core cable.
In figure: 1. power cable conductor bundle; 2. control cables conductor; 3. control cables inner insulating layer; 4. control cables external insulation layer; 5. power cable insulation layer; 6. colored inner sheath; 7. oversheath.
Embodiment
Embodiment one
As shown in Figure 1, naval vessel of the present utility model is made according to the following steps with 400Hz direct current single-core cable: the many diameters zinc-plated annealing copper wire that is 0.25mm is restrainted in the same way be twisted into power cable conductor bundle 1, bundle strand lay ratio is 10 times, bundle restraints according to calculating the just round compression molding of 98% proportioning that twists external diameter after being twisted into strand, and per share power cable conductor bundle 1 is carried out pressing mold process, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards.
Periphery at control cables conductor 2 is extruded with control cables inner insulating layer 3 and control cables external insulation layer 4 formation control cables cores, control cables inner insulating layer 3 adopts the ethylene propylene rubber insulated layer of high insulation resistance, control cables external insulation layer 4 adopts high heat-resisting ethylene propylene rubber insulated layer, the insulation resistance of control cables inner insulating layer 3 and control cables external insulation layer 4 and temperature resistant grade are all decided working temperature higher than electric power core maximum amount, and carry out double-layer coextrusion.The control cables core is provided with two groups, every group two, four control cables cores and power cable conductor bundle twist the formation cable core again, multiple strand adopts the direction opposite with self direction of lay of power cable conductor bundle to carry out, twisting again lay ratio is 13 times, and every group of control cables core is symmetrically distributed in the cable core periphery.
Then the periphery at cable core extrudes power cable insulation layer 5, power cable insulation layer 5 adopts dielectric constant to be not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, the nominal thickness of power cable insulation layer is 2.0mm, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
Periphery at power cable insulation layer 5 extrudes colored inner sheath 6 and oversheath 7 at last.Colored inner sheath 6 adopts orange flame retardant polyurethane inner sheath, and oversheath 7 adopts low temperature resistant abrasion resistant polyurethane oversheath, and the thickness that extrudes of flame retardant polyurethane inner sheath is 50% of sheath gross thickness, and the total nominal thickness of sheath is 2.0mm.
Embodiment two
As shown in Figure 1, naval vessel of the present utility model is made according to the following steps with 400Hz direct current single-core cable: the many diameters zinc-plated annealing copper wire that is 0.28mm is restrainted in the same way be twisted into power cable conductor bundle 1, bundle strand lay ratio is 11 times, bundle restraints according to calculating the just round compression molding of 98% proportioning that twists external diameter after being twisted into strand, and per share power cable conductor bundle 1 is carried out pressing mold process, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards.
Periphery at control cables conductor 2 is extruded with control cables inner insulating layer 3 and control cables external insulation layer 4 formation control cables cores, control cables inner insulating layer 3 adopts the ethylene propylene rubber insulated layer of high insulation resistance, control cables external insulation layer 4 adopts high heat-resisting ethylene propylene rubber insulated layer, the insulation resistance of control cables inner insulating layer 3 and control cables external insulation layer 4 and temperature resistant grade are all decided working temperature higher than electric power core maximum amount, and carry out double-layer coextrusion.The control cables core is provided with two groups, every group two, four control cables cores and power cable conductor bundle twist the formation cable core again, multiple strand adopts the direction opposite with self direction of lay of power cable conductor bundle to carry out, twisting again lay ratio is 14 times, and every group of control cables core is symmetrically distributed in the cable core periphery.
Then the periphery at cable core extrudes power cable insulation layer 5, power cable insulation layer 5 adopts dielectric constant to be not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, the nominal thickness of power cable insulation layer is 2.0mm, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
Periphery at power cable insulation layer 5 extrudes colored inner sheath 6 and oversheath 7 at last.Colored inner sheath 6 adopts yellow flame retardant polyurethane inner sheath, and oversheath 7 adopts low temperature resistant abrasion resistant polyurethane oversheath, and the thickness that extrudes of flame retardant polyurethane inner sheath is 55% of sheath gross thickness, and the total nominal thickness of sheath is 2.0mm.
Embodiment three
As shown in Figure 1, naval vessel of the present utility model is made according to the following steps with 400Hz direct current single-core cable: the many diameters zinc-plated annealing copper wire that is 0.3mm is restrainted in the same way be twisted into power cable conductor bundle 1, bundle strand lay ratio is 12 times, bundle restraints according to calculating the just round compression molding of 99% proportioning that twists external diameter after being twisted into strand, and per share power cable conductor bundle 1 is carried out pressing mold process, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards.
Periphery at control cables conductor 2 is extruded with control cables inner insulating layer 3 and control cables external insulation layer 4 formation control cables cores, control cables inner insulating layer 3 adopts the ethylene propylene rubber insulated layer of high insulation resistance, control cables external insulation layer 4 adopts high heat-resisting ethylene propylene rubber insulated layer, the insulation resistance of control cables inner insulating layer 3 and control cables external insulation layer 4 and temperature resistant grade are all decided working temperature higher than electric power core maximum amount, and carry out double-layer coextrusion.The control cables core is provided with two groups, every group two, four control cables cores and power cable conductor bundle twist the formation cable core again, multiple strand adopts the direction opposite with self direction of lay of power cable conductor bundle to carry out, twisting again lay ratio is 15 times, and every group of control cables core is symmetrically distributed in the cable core periphery.
Then the periphery at cable core extrudes power cable insulation layer 5, power cable insulation layer 5 adopts dielectric constant to be not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, the nominal thickness of power cable insulation layer is 2.0mm, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
Periphery at power cable insulation layer 5 extrudes colored inner sheath 6 and oversheath 7 at last.Colored inner sheath 6 adopts red flame retardant polyurethane inner sheath, and oversheath 7 adopts low temperature resistant abrasion resistant polyurethane oversheath, and the thickness that extrudes of flame retardant polyurethane inner sheath is 60% of sheath gross thickness, and the total nominal thickness of sheath is 2.0mm.
The cable minimum bending radius of embodiment one to embodiment three can reach 3 ~ 4 times of outside diameters of cable, much smaller than the minimum bending radius of 6 times of outside diameters of cable of present ordinary construction cable; This cable possesses and stands to exchange the withstand voltage test of 4000V/5 minute, operation work under the ambient temperature of-40 ℃ ~+90 ℃; Rated current-carrying capacity is large, and long-term rated current-carrying capacity is 600 peaces, and the ampacity in 1 second of short circuit can reach 2000 peaces.
The utility model is raw materials used, except above producer, all can select other satisfactory like product on market.
The above is only the better possible embodiments of the utility model, and is non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (7)
1. a naval vessel is with 400Hz direct current single-core cable, it is characterized in that: the periphery of control cables conductor is extruded with the control cables inner insulating layer and the control cables external insulation layer consists of the control cables core, described control cables core and multiply power cable conductor bundle are twisted into cable core, the periphery of described cable core is extruded with power cable insulation layer, the periphery of described power cable insulation layer is extruded with colored inner sheath, and the periphery of described colored inner sheath is extruded with oversheath.
2. naval vessel according to claim 1 with 400Hz direct current single-core cable, is characterized in that, the zinc-plated annealing copper wire that described power cable conductor bundle is 0.25 ~ 0.3mm by many diameters is restrainted in the same way strand and formed, and bundle strand lay ratio is 10 ~ 12 times.
3. naval vessel according to claim 2 with 400Hz direct current single-core cable, is characterized in that, described zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards.
4. according to claim 1 and 2 or 3 described naval vessels are with 400Hz direct current single-core cables, it is characterized in that, described control cables core has two groups, every group two, four described control cables cores and described power cable conductor bundle twist again and consist of described cable core, multiple strand adopts the direction opposite with self direction of lay of described power cable conductor bundle to carry out, and twisting again lay ratio is 13 ~ 15 times; Every group of described control cables core is symmetrically distributed in described cable core periphery.
5. naval vessel according to claim 1 with 400Hz direct current single-core cable, is characterized in that, described control cables inner insulating layer is the ethylene propylene rubber insulated layer of high insulation resistance, and described control cables external insulation layer is high heat-resisting ethylene propylene rubber insulated layer.
6. naval vessel according to claim 1 is with 400Hz direct current single-core cable, it is characterized in that, described power cable insulation layer is that dielectric constant is not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, the nominal thickness of described power cable insulation layer is 2.0mm, minimum thickness is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
7. naval vessel according to claim 1 is with 400Hz direct current single-core cable, it is characterized in that, described colored inner sheath is the flame retardant polyurethane inner sheath, and described oversheath is low temperature resistant abrasion resistant polyurethane oversheath, and the thickness that extrudes of described flame retardant polyurethane inner sheath is 50% ~ 60% of sheath gross thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606890 CN202940015U (en) | 2012-11-16 | 2012-11-16 | 400Hz direct-current single-core cable for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606890 CN202940015U (en) | 2012-11-16 | 2012-11-16 | 400Hz direct-current single-core cable for ship |
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| Publication Number | Publication Date |
|---|---|
| CN202940015U true CN202940015U (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220606890 Expired - Fee Related CN202940015U (en) | 2012-11-16 | 2012-11-16 | 400Hz direct-current single-core cable for ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969045A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | 400Hz direct-current single-core cable for ships and manufacturing method thereof |
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2012
- 2012-11-16 CN CN 201220606890 patent/CN202940015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969045A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | 400Hz direct-current single-core cable for ships and manufacturing method thereof |
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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: 20130515 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |