CN202758651U - Photoelectric composite medium-voltage reel cable with rated voltage of 3.6/6kV-12/20kV - Google Patents
Photoelectric composite medium-voltage reel cable with rated voltage of 3.6/6kV-12/20kV Download PDFInfo
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- CN202758651U CN202758651U CN 201220341586 CN201220341586U CN202758651U CN 202758651 U CN202758651 U CN 202758651U CN 201220341586 CN201220341586 CN 201220341586 CN 201220341586 U CN201220341586 U CN 201220341586U CN 202758651 U CN202758651 U CN 202758651U
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Abstract
The utility model discloses a photoelectric composite medium-voltage reel cable with the rated voltage of 3.6/6kV-12/20kV. An optical unit sheath made from a chlorinated polyethylene rubber material capable of being quickly sulphuretted is adopted, so that the optical fiber performance is ensured in the rubber extruding process, and accordingly, all properties of the photoelectric composite medium-voltage reel cable are improved and the service life is prolonged. Besides, owing to a reasonably-designed cable structure and a reasonably-formulated processing technology, for example, the stranding direction, the layer-stranding direction and the lay ratio of conductor braided wires, as well as the cabling layer ratio control, one frame is changed into an active wire releasing design by cabling equipment, and the design of a weaving reinforced layer and the sulfidization degree of both an inner sheath and an outer sheath are controlled, so that the bendability, the tensile performance and the twisting resistance of the cable are ensured and the service life of the cable is prolonged. In addition, owing to a special neoprene sheath material, the cable is endowed with such favorable properties as ultraviolet resistance, oil resistance, low-temperature resistance, abrasion resistance and the like, thereby having improved service performance and prolonged service life.
Description
Technical field
The utility model relates to the photoelectric composite medium-pressure drum cable, also relates to the processing technology of this photoelectric composite medium-pressure drum cable.
Background technology
Existing photoelectric composite medium-pressure drum cable, can be applicable to application such as the harbour machinery field of high mechanical stress, for example be applied on shore container crane, track type container gantry crane, ship unloaders, stacker-reclaimer and other heavy lift equipments.Photoelectric composite medium-pressure drum cable product normally lays the open air, usually can under severe environmental conditions, use, as: expose to the sun and rain for a long time; day at sudden and violent night is cold, and frost and snow is freezing, bears the erosion of the natural conditions such as ultraviolet ray, ozone; hydraulic performance decline is than very fast, and useful life is shorter.Between the operating period, cable must bear stretching resistance, reverse and flexural fatigue at cable, causes insulation and sheath material hydraulic performance decline very fast, also causes useful life shorter.Year must change once this type of cable average half a year to one at present.In the photoelectric composite medium-pressure drum cable, light unit oversheath adopts thermoset rubber to extrude, because the normal ambient operating temperature of optical fiber is-40 ℃-70 ℃, and the temperature by curing tube is 150 ℃-200 ℃ during rubber extruding, time is 10-20min, temperature by curing tube is higher, and the time is longer, is difficult to guarantee the performance of optical fiber; In addition, conductor wire core and light unit stranding are more rambunctious in the cable, and this can have influence on the useful life of photoelectric composite medium-pressure drum cable equally.Also have, the sheath material performance of photoelectric composite medium-pressure drum cable is not too high, causes the tensile strength, resistance to low temperature, ageing-resistant performance etc. of cable relatively all poor.
Summary of the invention
The purpose of this utility model provides rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable and processing technology, by adopting fast-curing chlorinated polyethylene rubber sheath as the oversheath of light unit, has guaranteed optical fiber property; By adopting the speciality CR sheath as the interior oversheath of cable, make cable possess the performances such as good low temperature resistant, wear-resisting, oil resistant, the useful life of having improved cable; Also have by the design construction of cable and the suitable processing technology of formulation, guaranteed bending property, tensile property, the anti-twisting property of cable, the useful life that also can improve cable.
For achieving the above object, the technical solution adopted in the utility model is: a kind of rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable, comprise and twist together a plurality of power cores and a plurality of ground core and at least one the light unit that forms cable core, be coated on the speciality CR inner sheath of described cable core outside, be woven in outside and the embedding reinforced layer wherein of described speciality CR inner sheath, be coated on the speciality CR oversheath of described reinforced layer outside, in described cable core, described a plurality of power core is along the circumferential direction near arrangement, be filled with the semiconductive filler in the center gap between described a plurality of power core, described a plurality of ground core and at least one light unit all along the circumferential direction the interval dispersed arrangement between the outside of adjacent two described power cores, described ground core and described smooth unit are respectively near the described power core of living corresponding both sides, each described power core includes the power line core conductor, wrapped isolation strip on described power line core conductor, wrap in the semiconductive conductor shield on the described isolation strip, wrap in the insulating barrier of described semiconductive conductor shield outside, wrap in the semiconductive insulation screen of described insulating barrier outside, each described ground core includes the ground wire core conductor, wrap in the semiconductive coating layer of described ground wire core conductor outside, described smooth unit comprises the loose sleeve pipe of establishing optical fiber in stranded formation optical cable core a plurality of, bundle is at the water blocking yarn of described optical cable core outside, what be coated on described water blocking yarn outside can fast-curing chlorinated polyethylene rubber sheath, all be filled with the compound of thixotropic in the gap in each described loose sleeve pipe, in described optical cable core, fill nonmetallic stiffener in the internal clearance between a plurality of described loose sleeve pipes.
During implementation, in described power line core conductor, the described ground wire core conductor, adopt between the adjacent two layers opposite strand to, every layer strand to respective layer in the strand of strand to opposite, the lay ratio of strand is controlled at 12-14 doubly, outermost lay ratio is controlled at 10-12 doubly, and every layer lay ratio is all than adjacent outer field 2 numerical value of Duoing from outside to inside.
During implementation, the lay ratio of described a plurality of power cores and a plurality of ground core and at least one light unit twisted synthesizing cable is not more than 10 times.
During implementation, described reinforced layer adopts dacron thread braiding reinforced layer, described semiconductive filler adopts semi-conductive rubber, insulating barrier in the described power core adopts the ethylene-propylene rubber layer, the material of described loose sleeve pipe adopts the polybutylene terephthalate (PBT) plastics, described water blocking yarn adopts water resistance aramid fiber, and the compound of described thixotropic adopts ointment, and described nonmetallic stiffener adopts aramid fiber yarn.
During implementation, described power core has three, and described ground core has two, and three described power cores are along the circumferential direction near arrangement, between the outside of every adjacent two described power cores near being arranged with a described ground core or light unit.
Process the process of above-mentioned photoelectric composite medium-pressure drum cable, may further comprise the steps:
(1) processes respectively described power core, described ground core and described smooth unit, the described power core that processes, conductor in the described ground core, adopt between the adjacent two layers opposite strand to, every layer strand to respective layer in the strand of strand to opposite, the lay ratio of strand is controlled at 12-14 doubly, outermost lay ratio is controlled at 10-12 doubly, every layer lay ratio is all than adjacent outer field 2 numerical value of Duoing from outside to inside, when the described smooth unit of processing, process first described optical cable core, then prick water blocking yarn in the outside of this optical cable core, extrude chlorinated polyethylene rubber material at described water blocking yarn at last, this chlorinated polyethylene rubber material is at 130 ℃ ~ 160 ℃, short vulcanization between 5 ~ 10min, form described chlorinated polyethylene rubber sheath, the material component of described chlorinated polyethylene rubber material and content by weight percentage are:
(2) at cabling device with a plurality of described power cores, a plurality of described ground core and at least one described smooth unit according to the lay ratio stranding together that is not more than 10 times, form described cable core, in the stranding process, also in the center gap of described cable core, fill out the semiconductive packing material, on cabling device, because the optical fiber in the light unit can not be stressed, so the corresponding frame of cabling device is set to initiatively unwrapping wire;
(3) extrude the speciality CR material at described cable core, form described speciality CR inner sheath, control the state of cure (vulcanization) of this speciality CR inner sheath at 40%-60%;
(4) form reinforced layer in the braiding of the outside of described speciality CR inner sheath, the count of this reinforced layer is controlled at 30%-50%, angle of weave is controlled at 40 °-60 °, because the state of cure (vulcanization) of described speciality CR inner sheath is controlled at 40%-60%, then the reinforced layer of braiding can be embedded in the described speciality CR inner sheath;
(5) extrude the speciality CR material at described reinforced layer, form described speciality CR oversheath, this speciality CR oversheath carries out 100% complete cure, be equivalent to this moment described speciality CR inner sheath has been carried out again once sulfuration, guaranteed the integraty of inner sheath, reinforced layer, oversheath, the material component of the speciality CR material in described inner sheath, the described oversheath and content by weight percentage are:
In step (1), when the described power line core of processing, process first conductor, then wrapped isolation strip on conductor, then three-layer co-extrudedly in the outside of isolation strip go out semiconductive conductor screen material, Insulation Material, semiconductive insulation shielding material, sulfuration forms described semiconductive conductor shield, described insulating barrier, described semiconductive insulation screen fully.
In step (1), when the optical cable core of the described smooth unit of processing, outside optical fiber, extrude first and form loose sleeve pipe, and factice for filling in the gap in loose sleeve pipe, then the loose sleeve pipe of establishing optical fiber in a plurality of is carried out the described optical cable core of stranded formation, wherein be filled with the stiffener aramid fiber in the internal clearance between a plurality of loose sleeve pipes.
In step (1), the material preparation method of chlorinated polyethylene rubber sheath may further comprise the steps in the described smooth unit:
(1) with described haloflex rubber 35%-45% mixing 5min-6min in 100 ℃ of-120 ℃ of banburies, mixing even;
(2) in described banbury, add again described magnesium oxide 4%-6%, described second base lead sulfate 0.6%-1.0%, described lead sulfate tribasic 1.0%-1.5%, described paraffin 1.0%-1.5%, described age resistor 2,2,4-trimethyl-1,2-dihyaroquinoline condensate 0.1%-0.3%, described reinforcing agent carbon black 15%-25%, described fire retardant antimony oxide 3%-5%, described filler talcum powder 3%-5%, described filler calcium carbonate 6%-10%, the described reinforcement filler White Carbon black 3%-5% that holds concurrently, mixing 2min-3min;
(3) then in described banbury, add described chlorinated paraffin wax 5.5%-6.5%, mixing 3min-5min;
(4) add at last described vulcanization aid iso-cyanuric acid triallyl ester 1%-3%, described vulcanizing agent cumyl peroxide 1.5%-4% in described banbury, then mixing 0.5min-1.5min discharges glue stuff compounding;
(5) with described glue stuff compounding thin-pass 1-2 time in mill, put glue 2-3 time simultaneously, then open the bar slice at tri-roll press machine, the rubber page or leaf of output is through the chill roll cooling, cross the talcum powder case after, namely make the finished product chlorinated polyethylene rubber material.
In step (5), described speciality CR material preparation method may further comprise the steps:
(1) with described neoprene rubber 45%-55% mixing 5min-6min in 100 ℃ of-120 ℃ of banburies, mixing even;
(2) in described banbury, add again described stearic acid 0.3%-0.7%, described paraffin wax 1.0%-2.0%, described zinc oxide 2.5%-3.5%, described mixed gas carbon black 8%-15%, described filler talcum powder 8%-15%, described filler calcium carbonate 15%-25%, described age resistor N, N'-two (betanaphthyl) p-phenylenediamine (PPD) 0.1%-0.3%, described age resistor 2-mercaptobenzimidazole 1.0%-2.0%, mixing 2min-3min;
(3) then in described banbury, add described di-n-octyl sebacate 4%-6%, mixing 1min-5min;
(4) add at last described tetramethylthiuram disulfide 1%-2%, described promoter 2-thiol benzothiazole 0.5%-1.0% in described banbury, then mixing 0.5min-1.5min discharges glue stuff compounding;
(5) with described glue stuff compounding thin-pass 1-2 time in mill, put glue 2-3 time simultaneously, then open the bar slice at tri-roll press machine, the rubber page or leaf of output is through the chill roll cooling, cross the talcum powder case after, namely make finished product speciality CR material.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages: in this photoelectric composite medium-pressure drum cable, employing can the fast-curing chlorinated polyethylene rubber material as light unit sheath, in the rubber extruding process, guaranteed optical fiber property, thereby improved properties and the useful life of photoelectric composite medium-pressure drum cable; Also have, this patent is by the construction of cable reasonable in design and formulate rational processing technology, as conductor strand strand to, layer strand to and the control of the control of lay ratio, stranding lay ratio, cabling device wherein a frame change to the control etc. of design, inner sheath and the external vulcanization protecting degree of initiatively unwrapping wire design, braiding reinforced layer, bending property, tensile property, the anti-twisting property of cable have been guaranteed, the useful life of having improved cable; In addition, by adopting the speciality CR sheath material, make cable possess good anti-, oil resistant, the performance such as low temperature resistant, wear-resisting, improved the serviceability of cable, thus the life-span of also having improved cable.
Description of drawings
Accompanying drawing 1 is construction of cable schematic diagram of the present utility model.
Embodiment
Further set forth structure of the present utility model below in conjunction with accompanying drawing.
Referring to shown in Figure 1, a kind of rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable, comprise and twist together three power cores 1 and two ground cores 2 and light unit 3 that forms cable core 10, be coated on the speciality CR inner sheath 5 of cable core 10 outsides, be woven in outside and the embedding reinforced layer 6 wherein of speciality CR inner sheath 5, be coated on the speciality CR oversheath 7 of reinforced layer 6 outsides, reinforced layer 6 adopts the braiding of high tenacity polyester fiber silk to form, in cable core 10, three power cores 1 are along the circumferential direction near arrangement, be filled with semiconductive filler 4 in the center gap between three power cores 1, semiconductive filler 4 adopts semi-conductive rubber, two ground cores 2 and light unit 3 all along the circumferential direction the interval dispersed arrangement between the outside of adjacent two power cores 1, each ground core 2 and light unit 3 are respectively near the power core 1 of living corresponding both sides, such as Fig. 1.Each power core 1 include power line core conductor 11, wrapped on power line core conductor 11 the isolation strip, wrap in semiconductive conductor shield 12 on the isolation strip, wrap in semiconductive conductor shield 12 outsides insulating barrier 13, wrap in the semiconductive insulation screen 14 of insulating barrier 13 outsides, insulating barrier 13 adopts the ethylene-propylene rubber layers.Each ground core 2 includes ground wire core conductor 21, wraps in the semiconductive coating layer 22 of ground wire core conductor 21 outsides, light unit 3 comprises the loose sleeve pipe 31 of establishing optical fiber in stranded formation optical cable core a plurality of, prick water blocking yarn in optical cable core outside, be coated on the water blocking yarn outside can fast-curing chlorinated polyethylene rubber sheath 32, all be filled with the compound of thixotropic in the gap in each loose sleeve pipe 31, in the optical cable core, fill nonmetallic stiffener in the internal clearance between a plurality of loose sleeve pipes 31.In the present embodiment, the material of loose sleeve pipe 31 adopts the polybutylene terephthalate (PBT) plastics, also can adopt other plastics, and water blocking yarn adopts water resistance aramid fiber, and the compound of thixotropic adopts ointment, and nonmetallic stiffener adopts aramid fiber yarn.
The inner sheath 5 of cable, oversheath 7 all adopts the speciality CR material to make, the material component of speciality CR material and content by weight percentage are: neoprene rubber 45%-55%, crosslinking agent tetramethylthiuram disulfide 1%-2%, vulcanization accelerator 2-thiol benzothiazole 0.5%-1.0%, age resistor 2-mercaptobenzimidazole 1.0%-2.0%, age resistor N, N'-two (betanaphthyl) p-phenylenediamine (PPD) 0.1%-0.3%, stearic acid 0.3%-0.7%, paraffin wax 1.0%-2.0%, zinc oxide 2.5%-3.5%, reinforcing agent mixed gas carbon black 8%-15%, filler talcum powder 8%-15%, filler calcium carbonate 15%-25%, di-n-octyl sebacate 4%-6%.Speciality CR material preparation method may further comprise the steps: (1) is with neoprene rubber 45%-55% mixing 5min-6min in 100 ℃ of-120 ℃ of banburies, and is mixing even; (2) in banbury, add again stearic acid 0.3%-0.7%, paraffin wax 1.0%-2.0%, zinc oxide 2.5%-3.5%, mixed gas carbon black 8%-15%, filler talcum powder 8%-15%, filler calcium carbonate 15%-25%, age resistor N, N'-two (betanaphthyl) p-phenylenediamine (PPD) 0.1%-0.3%, age resistor 2-mercaptobenzimidazole 1.0%-2.0%, mixing 2min-3min; (3) then in banbury, add di-n-octyl sebacate 4%-6%, mixing 1min-5min; (4) add at last tetramethylthiuram disulfide 1%-2%, promoter 2-thiol benzothiazole 0.5%-1.0% in banbury, then mixing 0.5min-1.5min discharges glue stuff compounding; (5) with glue stuff compounding thin-pass 1-2 time in mill, put glue 2-3 time simultaneously, then open the bar slice at tri-roll press machine, the rubber page or leaf of output is through the chill roll cooling, cross the talcum powder case after, namely make finished product speciality CR material.
In the speciality CR sheath material, the neoprene rubber has consisted of base-material, cooperates simultaneously the various auxiliary agents such as age resistor, reinforcing agent, filler, crosslinking agent, vulcanization accelerator, the performance of comprehensive plurality of raw materials, learn from other's strong points to offset one's weaknesses, have excellent UV resistant, the performance such as low temperature resistant, wear-resisting, ageing-resistant.Prove that by experiment speciality CR sheath material properties is qualified, specifically sees Table 1.
Table 1 speciality CR performance index
| Sequence number | Performance project | Unit | |
|
| 1 | Mechanical performance before aging | |||
| 11 | Tensile strength | N/mm 2 | 13.8 | |
| 12 | Elongation at break | % | 438 | |
| 2 | The air-oven |
|||
| 21 | The aging condition temperature | ℃ | 120±2 | |
| | H | 7×24 | ||
| 22 | The tensile strength rate of change | % | -16 | |
| 23 | The elongation at break rate of change | % | 20 | |
| 3 | |
|||
| 31 | The experimental condition temperature | ℃ | 200±3 |
| The load time | Min | 15 | ||
| Mechanical stress | N/cm 2 | 20 | ||
| 32 | Percentage elongation under the load | % | 65 | |
| 33 | Permanent elongation under the load | % | 2 | |
| 4 | The immersion oil test | |||
| 41 | The aging condition temperature | ℃ | 100±2 | |
| Time | H | 24 | ||
| 42 | The tensile strength rate of change | % | -20 | |
| 43 | The elongation at break rate of change | % | -25 | |
| 5 | The cryogenic tensile test | |||
| 51 | Test temperature | ℃ | -40±2 | |
| 52 | | H | 4 | |
| 53 | Elongation at break | % | 46 |
Can fast-curing chlorinated polyethylene rubber sheath 32 in the light unit 3, made by chlorinated polyethylene rubber material.The material component of this chlorinated polyethylene rubber material and content by weight percentage are: haloflex rubber 35%-45%, stabilizer magnesium oxide 4%-6%, second base lead sulfate 0.6%-1.0%, lead sulfate tribasic 1.0%-1.5%, paraffin 1.0%-1.5%, chlorinated paraffin wax 5.5%-6.5%, age resistor 2,2,4-trimethyl-1,2-dihyaroquinoline condensate 0.1%-0.3%, reinforcing agent carbon black 15%-25%, fire retardant antimony oxide 3%-5%, filler talcum powder 3%-5%, filler calcium carbonate 6%-10%, the reinforcement filler White Carbon black 3%-5% that holds concurrently, vulcanization aid iso-cyanuric acid triallyl ester 1%-3%, vulcanizing agent cumyl peroxide 1.5%-4%.The preparation method of this chlorinated polyethylene rubber material may further comprise the steps: (1) is with haloflex rubber 35%-45% mixing 5min-6min in 100 ℃ of-120 ℃ of banburies, and is mixing even; (2) in banbury, add again magnesium oxide 4%-6%, second base lead sulfate 0.6%-1.0%, lead sulfate tribasic 1.0%-1.5%, paraffin 1.0%-1.5%, age resistor 2,2,4-trimethyl-1,2-dihyaroquinoline condensate 0.1%-0.3%, reinforcing agent carbon black 15%-25%, fire retardant antimony oxide 3%-5%, filler talcum powder 3%-5%, filler calcium carbonate 6%-10%, the reinforcement filler White Carbon black 3%-5% that holds concurrently, mixing 2min-3min; (3) then in banbury, add chlorinated paraffin wax 5.5%-6.5%, mixing 3min-5min; (4) add at last vulcanization aid iso-cyanuric acid triallyl ester 1%-3%, vulcanizing agent cumyl peroxide 1.5%-4% in banbury, then mixing 0.5min-1.5min discharges glue stuff compounding; (5) with glue stuff compounding thin-pass 1-2 time in mill, put glue 2-3 time simultaneously, then open the bar slice at tri-roll press machine, the rubber page or leaf of output is through the chill roll cooling, cross the talcum powder case after, namely make the finished product chlorinated polyethylene rubber material.
In the chlorinated polyethylene rubber sheath material, the haloflex rubber has consisted of base-material, cooperate simultaneously the various auxiliary agents such as age resistor, stabilizer, reinforcing agent, fire retardant, filler, vulcanizing agent, the component that has wherein improved especially vulcanizing agent reaches the fast-curing purpose, the performance of so comprehensive plurality of raw materials, learn from other's strong points to offset one's weaknesses, when satisfying the chlorinated polyethylene sheath material property, improved the sulfuration efficient of material.Prove that by experiment this chlorinated polyethylene rubber material can be 130-160 ℃ of temperature, the time is to reach short vulcanization between 5-10min, and properties is qualified, specifically sees Table 2.
Table 2 short vulcanization haloflex rubber performance index
| Sequence number | Performance project | Unit | |
|
| 1 | Mechanical performance before aging | |||
| 11 | Tensile strength | N/mm 2 | 13.5 | |
| 12 | Elongation at break | % | 470 | |
| 2 | The air-oven |
|||
| 21 | The aging condition temperature | ℃ | 100±2 | |
| | H | 7×24 | ||
| 22 | The tensile strength rate of change | % | -18 | |
| 23 | The elongation at break rate of change | % | -22 | |
| 3 | |
|||
| 31 | The experimental condition temperature | ℃ | 200±3 | |
| The load time | Min | 15 | ||
| Mechanical stress | N/cm 2 | 20 | ||
| 32 | Percentage elongation under the load | % | 70 | |
| 33 | Permanent elongation under the load | % | 5 | |
| 4 | The cryogenic tensile test | |||
| 41 | Test temperature | ℃ | -30±2 | |
| 42 | | H | 4 | |
| 43 | Elongation at break | % | 35 |
When processing photoelectric composite medium-pressure drum cable, process respectively first power core 1, core 2 and light unit 3.Power core 1, the conductor in the core 2 select tinned copper wire or bare copper wire, the conductor filament diameter is thinner, flexibility is better, the softness of conductor and degree of crook are determining bending and the soft degree of cable, therefore, need especially to be particular about in the cable conductor design.In addition, adopt between the adjacent two layers when conductor is stranded opposite strand to, every layer strand to respective layer in the strand of strand to opposite, the lay ratio of strand is controlled at 12-14 doubly, outermost lay ratio is controlled at 10-12 doubly, all than adjacent outer field 2 numerical value of Duoing, the very anti-distorting stress of the stranded like this conductor structure that makes has good axial compression and bending strength to every layer lay ratio from outside to inside.
In power core 1, for guaranteeing the electric property of cable, in conductor 11 outer wrapped one deck semiconductive rubber strap, i.e. isolation strip.For guaranteeing partial discharge and the withstand voltage test of midium voltage cable, three-layer co-extrudedly in the outside of conductor isolation strip go out semiconductive conductor screen material, Insulation Material, semiconductive insulation shielding material, sulfuration process by curing tube gets final product according to normal control, sulfuration forms semiconductive conductor shield 12, insulating barrier 13, semiconductive insulation screen 14 fully.Insulating barrier 13 adopts high-performance ethylene-propylene rubber layer, and performance requirement: temperature resistant grade must can bear the variation of day and night temperature like this between-40 ℃～90 ℃, also can use in the summer of heat and the winter of severe cold simultaneously; In addition, have good electric property and excellent mechanical and physical performance.
General midium voltage cable also needs the layer of metal shielding outside the semiconductive insulation screen, the photoelectric composite medium-pressure drum cable is because special operational environment as add the layer of metal shielding at skin, can reduce the useful life of whole cable.Therefore, ground core 2 is resolved in metallic shield outside we will insulate, and being dispersed in master core is the both sides of power core 1, so need to extrude one deck semiconductive shieldin material outside ground core 2, form semiconductive coating layer 22, guaranteed that so outer all cores of insulation semi-conductive screen are iso-electric.
Fiber number is preferably 6,12,18 or 24 cores in the light unit 3, also can be other core numbers of customer requirements, and optical fiber should be comprised of similar silica optical fiber by coat.Should use the produced optical fiber of same design, same material and same process with batch product.Coated fiber should be placed in the loose sleeve pipe of thermoplastic formation in the light unit, and the remaining length of optical fiber in loose sleeve pipe should be uniform and stable.The pine shell material can be used polybutylene terephthalate (PBT) (being called for short PBT) plastics or other suitable plastics.Gap in loose sleeve pipe should be filled a kind of compound of thixotropic continuously, and filler should not damage optical fiber transmission property and useful life.Should comprise enough non-metallic stiffener in the light unit, in order to increase the tensile property of optical cable.The regulation stiffener is aramid fiber in this cable, and its Young's modulus should be not less than 90Gpa.When processing light unit 3; outside optical fiber, extrude and form PBT pine sleeve pipe 31; and fill the high-flash ointment in the gap in loose sleeve pipe 31 and rise heat insulation and protective effect; then the loose sleeve pipe 31 of establishing optical fiber in a plurality of is carried out stranded formation optical cable core; wherein be filled with the stiffener aramid fiber in the internal clearance between a plurality of loose sleeve pipes 31, to guarantee the tensile strength of light unit.When a plurality of loose sleeve pipe 31 is stranded, twisted layer should by the identical 5-12 pipe loose tube fiber of external diameter with suitable pitch layer strand around the stiffener aramid fiber of center.Layer strand can be the spiral strand, also can be the SZ strand.After processing the optical cable core, upper water resistance aramid fiber is pricked in the outside of this optical cable core, extrude above-mentioned chlorinated polyethylene rubber material at water resistance aramid fiber at last, this chlorinated polyethylene rubber material is at 130 ℃ ~ 160 ℃, short vulcanization between 5 ~ 10min, form chlorinated polyethylene rubber sheath 32, fast-curing chlorinated polyethylene rubber sheath 32 can guarantee the stable of optical fiber property in the course of processing.
Extrude above-mentioned speciality CR material at cable core 10, form speciality CR inner sheath 5, control the state of cure (vulcanization) of this speciality CR inner sheath 5 at 40%-60%.Then form reinforced layer 6 in the braiding of the outside of speciality CR inner sheath 5, the count of this reinforced layer is controlled at 30%-50%, angle of weave is controlled at 40 °-60 °, because the state of cure (vulcanization) of speciality CR inner sheath 5 is controlled at 40%-60%, then the reinforced layer 6 of braiding can be embedded in the speciality CR inner sheath 5.Extrude above-mentioned speciality CR material at reinforced layer 6 at last, form speciality CR oversheath 7, this speciality CR oversheath 7 carries out 100% complete cure, be equivalent to this moment speciality CR inner sheath 5 has been carried out again once sulfuration, the common post-cure pipes of crossing of inner sheath 5 have carried out post-cure, have guaranteed the integraty of inner sheath 5, reinforced layer 6, oversheath 7, improve the tensile strength of whole cable, prolonged cable useful life.The theoretical life-span of photoelectric composite medium-pressure drum cable of working it out according to above technique can reach 3 years, and the normal photoelectric composite medium-pressure drum cable life-span is between 6 months ~ 1 year in the prior art.
At inner sheath 5 and 7 designs of oversheath one deck braiding reinforced layer 6, material adopts the high tenacity polyester fiber silk, this material the time does not have great elasticity in braiding, and this material has flattening trend when being woven on the line, gives in our actual production process and has brought many troubles.By our tracing observation, adopt suitable tension force control, make the high tenacity polyester fiber silk when braiding, be not easy broken string, adopt suitable doubling radical, make the count of high tenacity polyester fiber silk, angle of weave suitable, thereby guaranteed the adhesive between inner sheath 5 and the oversheath 7, played humidification, improve the tensile strength of whole cable, eliminate or reduce the stress of cable when reversing, improve the useful life of cable.
The photoelectric composite medium-pressure drum cable of this patent, employing can the fast-curing chlorinated polyethylene rubber material as light unit sheath, in the rubber extruding process, guaranteed optical fiber property, thereby improved properties and the useful life of photoelectric composite medium-pressure drum cable; Also have, this patent is by the construction of cable reasonable in design and formulate rational processing technology, as conductor strand strand to, layer strand to and the control of the control of lay ratio, stranding lay ratio, cabling device wherein a frame change to the control etc. of design, inner sheath and the external vulcanization protecting degree of initiatively unwrapping wire design, braiding reinforced layer, bending property, tensile property, the anti-twisting property of cable have been guaranteed, the useful life of having improved cable; In addition, by adopting the speciality CR sheath material, make cable possess good UV resistant, oil resistant, the performance such as low temperature resistant, wear-resisting, improved the serviceability of cable, thus the life-span of also having improved cable.
Claims (5)
1. rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable, it is characterized in that: comprise twisting together a plurality of power cores and a plurality of ground core and at least one the light unit that forms cable core, be coated on the speciality CR inner sheath of described cable core outside, be woven in outside and the embedding reinforced layer wherein of described speciality CR inner sheath, be coated on the speciality CR oversheath of described reinforced layer outside, in described cable core, described a plurality of power core is along the circumferential direction near arrangement, be filled with the semiconductive filler in the center gap between described a plurality of power core, described a plurality of ground core and at least one light unit all along the circumferential direction the interval dispersed arrangement between the outside of adjacent two described power cores, described ground core and described smooth unit are respectively near the described power core of living corresponding both sides, each described power core includes the power line core conductor, wrapped isolation strip on described power line core conductor, wrap in the semiconductive conductor shield on the described isolation strip, wrap in the insulating barrier of described semiconductive conductor shield outside, wrap in the semiconductive insulation screen of described insulating barrier outside, each described ground core includes the ground wire core conductor, wrap in the semiconductive coating layer of described ground wire core conductor outside, described smooth unit comprises the loose sleeve pipe of establishing optical fiber in stranded formation optical cable core a plurality of, bundle is at the water blocking yarn of described optical cable core outside, what be coated on described water blocking yarn outside can fast-curing chlorinated polyethylene rubber sheath, all be filled with the compound of thixotropic in the gap in each described loose sleeve pipe, in described optical cable core, fill nonmetallic stiffener in the internal clearance between a plurality of described loose sleeve pipes.
2. rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable according to claim 1, it is characterized in that: in described power line core conductor, the described ground wire core conductor, adopt between the adjacent two layers opposite strand to, every layer strand to respective layer in the strand of strand to opposite, the lay ratio of strand is controlled at 12-14 doubly, outermost lay ratio is controlled at 10-12 doubly, and every layer lay ratio is all than adjacent outer field 2 numerical value of Duoing from outside to inside.
3. rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable according to claim 1, it is characterized in that: the lay ratio of described a plurality of power cores and a plurality of ground core and at least one light unit twisted synthesizing cable is not more than 10 times.
4. rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable according to claim 1, it is characterized in that: described reinforced layer adopts dacron thread braiding reinforced layer, described semiconductive filler adopts semi-conductive rubber, insulating barrier in the described power core adopts the ethylene-propylene rubber layer, the material of described loose sleeve pipe adopts the polybutylene terephthalate (PBT) plastics, described water blocking yarn adopts water resistance aramid fiber, the compound of described thixotropic adopts ointment, and described nonmetallic stiffener adopts aramid fiber yarn.
5. rated voltage 3.6/6kV-12/20kV photoelectric composite medium-pressure drum cable according to claim 1, it is characterized in that: described power core has three, described ground core has two, three described power cores are along the circumferential direction near arrangement, between the outside of every adjacent two described power cores near being arranged with a described ground core or light unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341586 CN202758651U (en) | 2012-07-13 | 2012-07-13 | Photoelectric composite medium-voltage reel cable with rated voltage of 3.6/6kV-12/20kV |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341586 CN202758651U (en) | 2012-07-13 | 2012-07-13 | Photoelectric composite medium-voltage reel cable with rated voltage of 3.6/6kV-12/20kV |
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| CN202758651U true CN202758651U (en) | 2013-02-27 |
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| CN 201220341586 Expired - Fee Related CN202758651U (en) | 2012-07-13 | 2012-07-13 | Photoelectric composite medium-voltage reel cable with rated voltage of 3.6/6kV-12/20kV |
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| CN (1) | CN202758651U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102760519A (en) * | 2012-07-13 | 2012-10-31 | 江苏亨通电力电缆有限公司 | Photoelectric composite medium-voltage drum cable with rated voltage of 3.6/6kV-12/20kV and processing technology thereof |
| CN103310889A (en) * | 2013-07-04 | 2013-09-18 | 安丘华苑电缆有限公司 | Photoelectric composite drag chain cable |
| CN104157359A (en) * | 2014-08-12 | 2014-11-19 | 华北电力大学句容研究中心 | Low voltage fiber composite conductor |
| CN107353458A (en) * | 2016-05-10 | 2017-11-17 | 江苏亨通电力电缆有限公司 | Preparation technology for the optoelectronic composite cable of tidal power generation |
| CN107353457A (en) * | 2016-05-10 | 2017-11-17 | 江苏亨通电力电缆有限公司 | Tidal power generation optoelectronic composite cable |
| CN109360676A (en) * | 2018-09-17 | 2019-02-19 | 江苏亨通电力电缆有限公司 | Tunnel the manufacturing process of Suporting structure oil resistant cable |
| CN110335713A (en) * | 2019-07-29 | 2019-10-15 | 上海飞航电线电缆有限公司 | A kind of servo cable |
| WO2024130581A1 (en) * | 2022-12-21 | 2024-06-27 | 远东电缆有限公司 | Modified sheath material, preparation method for sheath material, and mining reel cable |
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- 2012-07-13 CN CN 201220341586 patent/CN202758651U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760519A (en) * | 2012-07-13 | 2012-10-31 | 江苏亨通电力电缆有限公司 | Photoelectric composite medium-voltage drum cable with rated voltage of 3.6/6kV-12/20kV and processing technology thereof |
| CN102760519B (en) * | 2012-07-13 | 2014-06-25 | 江苏亨通电力电缆有限公司 | Photoelectric composite medium-voltage drum cable with rated voltage of 3.6/6kV-12/20kV and processing technology thereof |
| CN103310889A (en) * | 2013-07-04 | 2013-09-18 | 安丘华苑电缆有限公司 | Photoelectric composite drag chain cable |
| CN103310889B (en) * | 2013-07-04 | 2016-03-02 | 安丘华苑电缆有限公司 | Photoelectric composite drag chain cable |
| CN104157359A (en) * | 2014-08-12 | 2014-11-19 | 华北电力大学句容研究中心 | Low voltage fiber composite conductor |
| CN107353458A (en) * | 2016-05-10 | 2017-11-17 | 江苏亨通电力电缆有限公司 | Preparation technology for the optoelectronic composite cable of tidal power generation |
| CN107353457A (en) * | 2016-05-10 | 2017-11-17 | 江苏亨通电力电缆有限公司 | Tidal power generation optoelectronic composite cable |
| CN109360676A (en) * | 2018-09-17 | 2019-02-19 | 江苏亨通电力电缆有限公司 | Tunnel the manufacturing process of Suporting structure oil resistant cable |
| CN110335713A (en) * | 2019-07-29 | 2019-10-15 | 上海飞航电线电缆有限公司 | A kind of servo cable |
| WO2024130581A1 (en) * | 2022-12-21 | 2024-06-27 | 远东电缆有限公司 | Modified sheath material, preparation method for sheath material, and mining reel cable |
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