CN107945939A - A kind of insulation of second third blocks water, fire-retardant flexible electric power cable and preparation method thereof - Google Patents
A kind of insulation of second third blocks water, fire-retardant flexible electric power cable and preparation method thereof Download PDFInfo
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- CN107945939A CN107945939A CN201711434287.9A CN201711434287A CN107945939A CN 107945939 A CN107945939 A CN 107945939A CN 201711434287 A CN201711434287 A CN 201711434287A CN 107945939 A CN107945939 A CN 107945939A
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- retardant
- rubber
- water blocking
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000003063 flame retardant Substances 0.000 title claims abstract description 68
- 238000009413 insulation Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000004132 cross linking Methods 0.000 claims abstract description 12
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims description 29
- 238000004073 vulcanization Methods 0.000 claims description 20
- 241000108463 Hygrophila <snail> Species 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000005864 Sulphur Substances 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 239000004014 plasticizer Substances 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229920006235 chlorinated polyethylene elastomer Polymers 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012744 reinforcing agent Substances 0.000 claims description 6
- 238000010092 rubber production Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000012763 reinforcing filler Substances 0.000 claims description 5
- 238000009954 braiding Methods 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 79
- 230000000694 effects Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Block water the invention discloses a kind of insulation of second third, fire-retardant flexible electric power cable and preparation method thereof, including conductor, wrapped first water blocking layer and the second water blocking layer successively outside conductor, the fire-retardant ethylene-propylene rubber insulated layer of cross-linking type is extruded between the first water blocking layer and the second water blocking layer and forms insulated wire cores；The first lapping layer is externally provided with the second water blocking layer, first lapping layer is externally provided with metal screen layer, wrapped 3rd water blocking layer outside metal screen layer, the 3rd water blocking layer are equipped with the second lapping layer outside, the anti-tear haloflex rubber oversheath of fire-retardant height are finally extruded outside the second lapping layer again.The cable is used for the power supply connection of the small space electrical power trans mission/distribution systems such as skyscraper, subway, possesses excellent shielding properties, and block water, it is fire-retardant, the performances such as resist bending, and keep cable is smooth to transmit electric power, meet the power demands of the environment such as small space, underground engineering.
Description
Technical field
The present invention relates to a kind of second the third insulating power flexible cable and its production method, be specially a kind of insulation of second third block water,
Fire-retardant flexible electric power cable and its production method, belong to cable preparing technical field.
Background technology
In recent years, as the fast development of China's economic and Urbanization Construction are constantly accelerated, promote urban skyscraper,
Track transportation industry shoots up, and it is narrow and small that environment is generally laid in urban skyscraper, the power transmission and distribution pipe network of subway, tide
Wet, this pliability to cable, resist bending, block-water performance are put forward higher requirements.Skyscraper, subway station personnel are close at the same time
Collection, flame-retardancy requirements are high, so the fire resistance of cable is extremely important.
Stand in corporate social responsibility, safety in production, ensures urban skyscraper, subway electrical power distribution electric system safe power supply
Angle, develop that a kind of insulation of second third blocks water, flame retardant type flexible electric power cable just seems particularly necessary.
The content of the invention
In order to overcome the deficiencies in the prior art, there is provided a kind of insulation of second third blocks water, fire-retardant flexible electric power cable, the electricity
Cable is used for the power supply connection of the small space electrical power trans mission/distribution systems such as skyscraper, subway, possesses excellent shielding properties, and blocks water,
It is fire-retardant, the performance such as resist bending, and keep cable is smooth to transmit electric power, meet the power supply need of the environment such as small space, underground engineering
Ask.
Block water it is a further object of the present invention to provide the insulation of above-mentioned second third, the preparation method of flame retardant type flexible electric power cable.
To achieve the above object, block water the invention discloses a kind of insulation of second third, fire-retardant flexible electric power cable, including conductor,
Wrapped first water blocking layer and the second water blocking layer successively outside conductor, cross-linking type is extruded between the first water blocking layer and the second water blocking layer
Fire-retardant ethylene-propylene rubber insulated layer forms insulated wire cores；The first lapping layer is externally provided with the second water blocking layer, the first lapping layer is externally provided with
Metal screen layer, wrapped 3rd water blocking layer outside metal screen layer, is equipped with the second lapping layer outside the 3rd water blocking layer again, finally the
The anti-tear haloflex rubber oversheath of fire-retardant height is extruded outside two lapping layers.
Preferably, the conductor uses the 5th class soft copper conductor, which is formed by multiply strand synnema layer-stranding,
Every layer of strand synnema layering is composed of more strand synnemas, and the direction of lay of adjacent two layers is on the contrary, and adjacent every two
Wrapped single side semiconductor waterstop between layer strand synnema layer.
Preferably, first water blocking layer, the second water blocking layer and the 3rd water blocking layer are semiconductor waterstop.
Preferably, first twining package tape is single side aluminium-plastic tape, and aluminium faces outwardly.
Preferably, second twining package tape is non-woven fabrics.
Preferably, the metal screen layer forms for tinned copper wire braiding, and count is not less than 80%.
A kind of insulation of second third blocks water, the preparation method of fire-retardant flexible electric power cable, comprises the following steps：
1）First, using the 5th class soft copper conductor, for every layer of strand synnema direction and the direction of lay phase of multilayer stranded conductor
Instead, the wrapped single side semiconductor waterstop and between every layer of stranded layer, and tie up water blocking yarn；
2）Then overlapping wrapped semiconductor waterstop, Duplication 20% outside conductor；
3）The rubber extruding machine that sulphur squeezed in rubber production line is connected by catenary suspension type continuous vulcanization outside semiconductor waterstop again and extrudes the fire-retardant second third of cross-linking type
Rubber, rubber extruding machine temperature control is at 70 DEG C~90 DEG C, and production linear speed control is at 5~10 ms/min, and core is closed after extrusion
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But insulated wire cores are formed, cooling section coolant-temperature gage is controlled at 30 DEG C~50 DEG C；
4）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside insulated wire cores；
5）Secondly, in the overlapping wrapped single side aluminium-plastic tape of semiconductor waterstop, aluminium faces outwardly, Duplication 20%；
6）Secondly, woven in single side aluminium-plastic tape external application tinned copper wire, form metal screen layer, count ＞ 80%；
7）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside metal screen layer；
8）Secondly, outside semiconductor waterstop overlapping wrapped non-woven fabrics tighten, Duplication 20%；
9）Secondly, tightened in non-woven fabrics outside layer and connect the rubber extruding machine that sulphur squeezed in rubber production line by catenary suspension type continuous vulcanization and extrude the fire-retardant anti-tear chlorine of height
Change polyethylene rubber, extrusion temperature is controlled at 75 DEG C~88 DEG C, and production linear speed control is at 5~8 ms/min, and core is closed
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But, the control of cooling section coolant-temperature gage obtains the cable at 30 DEG C~50 DEG C.
Step 3）In the fire-retardant ethylene-propylene rubber insulated layer of cross-linking type be by mixer by the third electro-insulating rubber of second, oxidant,
The third insulation rubber of fire-retardant second that plasticizer, vulcanizing agent, reinforcing agent, antioxidant are kneaded, slice is extruded into satisfaction company sulphur, the fire-retardant second
The component and mass fraction of third insulation rubber be：100 parts of EPDM, 4 ~ 8 parts of ZnO, 5 ~ 8 parts of plasticizer, 2 ~ 3 parts of antioxidant,
50 ~ 75 parts of reinforcing filler, 3 ~ 5 parts of vulcanizing agent, 8 ~ 10 parts of fire retardant.
Step 8）In the anti-tear haloflex rubber oversheath of fire-retardant height be by mixer by chlorinated polyethylene rubber,
The fire-retardant anti-tear chlorinated polyethylene of height that oxidant, plasticizer, vulcanizing agent, reinforcing agent, antioxidant are kneaded, slice is extruded into satisfaction company sulphur
Alkene sheath rubber, the component and mass fraction of the fire-retardant anti-tear chlorinated polyethylene sheath rubber of height are：100 parts of CPE, MgO 6 ~
12 parts, 15 ~ 20 parts of plasticizer, 2 ~ 3 parts of antioxidant, 60 ~ 80 parts of reinforcing filler, 20 ~ 30 parts of fire retardant, vulcanizing agent 4 ~
6 parts.
The beneficial effects of the present invention are：
1st, the present invention is blocked water design by the layering of cable conductor；And outside cable conductor, outside insulating layer, outside metal screen layer
Semiconductive water blocking layer is set, both ensure that cable generally longitudinally block-water effect, also makes cable conductor and insulation, insulation and metal screen
Covering interlayer has good electric field transition, be effectively ensured cable in wet condition block water requirement and it is safe to use；Also, pass through
To the scientific design of cable metallic screens structure, composition shielded layer is combined using aluminium-plastic tape and tin plating braiding copper wire, is had
Effect ensures cable complex environment electromagnetism, electric field shielding, it is ensured that cable shield effect.
2nd, cable of the present invention using the 5th class soft copper conductor, Ethylene-propylene Elastomer insulation rubber, tin plating soft copper silk it is metal knitted and
Chlorinated polyethylene elastomer sheath rubber is compared with traditional crosslinked polyetylene insulated pvc sheath cable, cable bend
Can be excellent.Particularly chlorinated polyethylene elastomer sheath rubber is after vulcanization crosslinking, and elasticity, resist this excellent performance, compared with polychlorostyrene
Ethene jacketed cable has excellent counter-bending, resistance to dragging, meets cable in skyscraper, the narrow and small sky in electrical power distribution station of subway
Between etc. adverse circumstances laying.
3rd, insulated wire cores of the present invention use fire-retardant the third insulation rubber of second, and the fire-retardant ethylene-propylene rubber oxygen index (OI) (OI) researched and developed exists
Between 26-28, volume resistivity minimum value is 1 × 1015 Ω cm, the third insulation rubber of second both have good fire resistance,
Also good insulation performance is maintained.
4th, cable of the present invention uses haloflex as base-material is fire-retardant, high anti-tear elastomer rubber, the anti-tensile of sheath rubber
Intensity >=11MPa, elongation at break >=300%, anti-tear >=8.0N/mm, oxygen index (OI) >=36, vulcanization crosslinking afterchlorinate polyethylene shield
Rubber is covered compared with thermoplastic pvc sheath, and elasticity, resist this performance, wear-resisting property excellent, and cable can be met in height
Construction demand under layer building, the electrical power distribution power station small space of subway, adverse circumstances.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of conductor.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention, after the present invention has been read, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application appended claims limited range.
As shown in Figure 1, a kind of insulation of second third of present invention offer blocks water, fire-retardant flexible electric power cable, including conductor 1, in conductor
Outer 2 and second water blocking layer 3 of wrapped first water blocking layer overlapping successively, Duplication is 20%, in the first water blocking layer and the second water blocking layer
Between extrude the fire-retardant ethylene-propylene rubber insulated layer 4 of cross-linking type and form insulated wire cores；Overlapping wrapped first is wrapped outside the second water blocking layer
Layer 5, Duplication 20%；First lapping layer is externally provided with metal screen layer 6, overlapping wrapped 3rd water blocking layer 7 outside metal screen layer,
Duplication 20%；The second lapping layer 8 is equipped with again outside 3rd water blocking layer, and the fire-retardant anti-tear chlorination of height is finally extruded outside the second lapping layer
Polyethylene rubber oversheath 9.
In order to further improve the performance of cable, the conductor uses the 5th class soft copper conductor, the first water blocking layer, second
Water blocking layer and the 3rd water blocking layer are semiconductor waterstop, and the first twining package tape is single side aluminium-plastic tape, and aluminium faces outwardly；Second
Twining package tape is non-woven fabrics, and the metal screen layer forms for tinned copper wire braiding, and count is not less than 80%.
As shown in Fig. 2, the conductor is formed by multiply strand synnema layer-stranding, every layer of strand synnema layering is by more
Strand synnema 10 is composed, and the direction of lay of adjacent two layers is on the contrary, and wrapped between every adjacent two layers strand synnema layer
Single side semiconductor waterstop 11；Concrete structure is：Multilayer twisting type conductor uses the concentric structure of " 1+6+12 " mode, with 1
Three layers of the strand of strand synnema+12 of strand synnema+6 synnema point is twisted.
Embodiment one：
A kind of insulation of second third blocks water, the preparation method of fire-retardant flexible electric power cable, comprises the following steps：
1）First, using the 5th class soft copper conductor, for every layer of strand synnema direction and the direction of lay phase of multilayer stranded conductor
Instead, the wrapped single side semiconductor waterstop and between every layer of stranded layer, and tie up water blocking yarn；
2）Then overlapping wrapped semiconductor waterstop, Duplication 20% outside conductor；
3）The rubber extruding machine that sulphur squeezed in rubber production line is connected by catenary suspension type continuous vulcanization outside semiconductor waterstop again and extrudes the fire-retardant second third of cross-linking type
Rubber, rubber extruding machine temperature control is at 70 DEG C~90 DEG C, and production linear speed control is at 5~10 ms/min, and core is closed after extrusion
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But insulated wire cores are formed, cooling section coolant-temperature gage is controlled at 30 DEG C~50 DEG C；
4）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside insulated wire cores；
5）Secondly, in the overlapping wrapped single side aluminium-plastic tape of semiconductor waterstop, aluminium faces outwardly, Duplication 20%；
6）Secondly, woven in single side aluminium-plastic tape external application tinned copper wire, form metal screen layer, count ＞ 80%；
7）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside metal screen layer；
8）Secondly, outside semiconductor waterstop overlapping wrapped non-woven fabrics tighten, Duplication 20%；
9）Secondly, tightened in non-woven fabrics outside layer and connect the rubber extruding machine that sulphur squeezed in rubber production line by catenary suspension type continuous vulcanization and extrude the fire-retardant anti-tear chlorine of height
Change polyethylene rubber, extrusion temperature is controlled at 75 DEG C~88 DEG C, and production linear speed control is at 5~8 ms/min, and core is closed
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But, the control of cooling section coolant-temperature gage obtains the cable at 30 DEG C~50 DEG C.
Step 3）In the fire-retardant ethylene-propylene rubber insulated layer of cross-linking type be by mixer by the third electro-insulating rubber of second, oxidant,
The third insulation rubber of fire-retardant second that plasticizer, vulcanizing agent, reinforcing agent, antioxidant are kneaded, slice is extruded into satisfaction company sulphur, the fire-retardant second
The component and mass fraction of third insulation rubber be：100 parts of EPDM, 4 ~ 8 parts of ZnO, 5 ~ 8 parts of plasticizer, 2 ~ 3 parts of antioxidant,
50 ~ 75 parts of reinforcing filler, 3 ~ 5 parts of vulcanizing agent, 8 ~ 10 parts of fire retardant.
Step 8）In the anti-tear haloflex rubber oversheath of fire-retardant height be by mixer by chlorinated polyethylene rubber,
The fire-retardant anti-tear chlorinated polyethylene of height that oxidant, plasticizer, vulcanizing agent, reinforcing agent, antioxidant are kneaded, slice is extruded into satisfaction company sulphur
Alkene sheath rubber, the component and mass fraction of the fire-retardant anti-tear chlorinated polyethylene sheath rubber of height are：100 parts of CPE, MgO 6 ~
12 parts, 15 ~ 20 parts of plasticizer, 2 ~ 3 parts of antioxidant, 60 ~ 80 parts of reinforcing filler, 20 ~ 30 parts of fire retardant, vulcanizing agent 4 ~
6 parts.
Performance measurement：
The structure size and performance prepared using this method is specific as follows：
0.6/1 kV second third of the rated voltage insulation fire-retardant flexible electric power cable of chlorinated polyethylene sheath
Model： ERFP-6/10 1×400
1. main conductor：400 mm2；
2. first layer water blocking layer：1 layer of semiconductor waterstop is overlapping wrapped, thick × wide：0.4 × 60mm, Duplication >=20%；
3. second third insulate：Fire-retardant the third insulation rubber of second, nominal thickness 2.6mm；
4. second layer water blocking layer：1 layer of semiconductor waterstop is overlapping wrapped, thick × wide：0.4 × 60mm, Duplication >=20%；
5. first layer lapping layer：1 layer of single side aluminium-plastic tape is overlapping wrapped, thick × wide：0.2 × 60mm, Duplication >=20%；
6. wire sheathing：Tinned copper wire, brass wire diameter φ 0.2mm, count ＞ 80%；
7. third layer water blocking layer：1 layer of semiconductor waterstop is overlapping wrapped, thick × wide：0.4 × 60mm, Duplication >=20%；
8. second layer lapping layer：1 layer of non-woven fabrics is overlapping wrapped, thick × wide：0.2 × 60mm, Duplication >=20%；
9. oversheath：The fire-retardant anti-tear chlorinated polyethylene sheath rubber of height, nominal thickness 2.0mm.
Performance：
Power wire core insulating materials uses fire-retardant ethylene-propylene rubber insulated glue, and cable conductor Long-term service temperature is up to 90 DEG C, short circuit
Temperature is 250 DEG C（Duration≤5s）；
2. pressure test：Cable applies 3.5UOTest voltage continue 5min, cable insulation does not puncture；
3. chlorinated polyethylene sheath rubber resists this performance：8.5N/mm；
4. cable-flame retardant performance：Pass through the burning B experiments of GB/T 18380.34-2008 bunchys；
5. oversheath scraped finish is tested:Apply active force 210N, scraped finish 25 times, sheath surfaces externally and internally flawless, subsequent impact electricity
Pressure（20kV, each 10 times of positive and negative polarity）Cable portion punctures.
The above is only the preferred embodiment of the present invention, it is noted that is come for those of ordinary skill in the art
Say, without departing from the principle of the present invention, some variations and modifications can also be made, these also should be regarded as belonging to the present invention
Protection domain.
Claims (9)
1. a kind of insulation of second third blocks water, fire-retardant flexible electric power cable, it is characterised in that：Including conductor, successively wrapped outside conductor
One water blocking layer and the second water blocking layer, extrude the fire-retardant ethylene-propylene rubber insulated layer of cross-linking type between the first water blocking layer and the second water blocking layer
Form insulated wire cores；The first lapping layer is externally provided with the second water blocking layer, the first lapping layer is externally provided with metal screen layer, in metal screen
Wrapped 3rd water blocking layer outside layer is covered, the second lapping layer is equipped with again outside the 3rd water blocking layer, is finally extruded outside the second lapping layer fire-retardant
High anti-tear haloflex rubber oversheath.
2. the insulation of second third according to claim 1 blocks water, fire-retardant flexible electric power cable, it is characterised in that：The conductor is adopted
With the 5th class soft copper conductor, which is formed by multiply strand synnema layer-stranding, and every layer of strand synnema layering is by more strand beams
Silk is composed, and the direction of lay of adjacent two layers is on the contrary, and wrapped single side is partly led between every two adjacent layers strand synnema layer
Electric waterstop.
3. the insulation of second third according to claim 1 blocks water, fire-retardant flexible electric power cable, it is characterised in that：First resistance
Water layer, the second water blocking layer and the 3rd water blocking layer are semiconductor waterstop.
4. the insulation of second third according to claim 1 blocks water, fire-retardant flexible electric power cable, it is characterised in that：Described first is wrapped
Band is single side aluminium-plastic tape, and aluminium faces outwardly.
5. the insulation of second third according to claim 1 blocks water, fire-retardant flexible electric power cable, it is characterised in that：Described second is wrapped
Band is non-woven fabrics.
6. the insulation of second third according to claim 1 blocks water, fire-retardant flexible electric power cable, it is characterised in that：The metallic shield
Layer forms for tinned copper wire braiding, and count is not less than 80%.
7. a kind of insulation of second third as claimed in claim 1 blocks water, the preparation method of fire-retardant flexible electric power cable, it is characterised in that：
Comprise the following steps：
1）First, using the 5th class soft copper conductor, for every layer of strand synnema direction and the direction of lay phase of multilayer stranded conductor
Instead, the wrapped single side semiconductor waterstop and between every layer of stranded layer, and tie up water blocking yarn；
2）Then overlapping wrapped semiconductor waterstop, Duplication 20% outside conductor；
3）The rubber extruding machine that sulphur squeezed in rubber production line is connected by catenary suspension type continuous vulcanization outside semiconductor waterstop again and extrudes the fire-retardant second third of cross-linking type
Rubber, rubber extruding machine temperature control is at 70 DEG C~90 DEG C, and production linear speed control is at 5~10 ms/min, and core is closed after extrusion
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But insulated wire cores are formed, cooling section coolant-temperature gage is controlled at 30 DEG C~50 DEG C；
4）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside insulated wire cores；
5）Secondly, in the overlapping wrapped single side aluminium-plastic tape of semiconductor waterstop, aluminium faces outwardly, Duplication 20%；
6）Secondly, woven in single side aluminium-plastic tape external application tinned copper wire, form metal screen layer, count ＞ 80%；
7）Secondly, overlapping wrapped semiconductor waterstop, Duplication 20% outside metal screen layer；
8）Secondly, outside semiconductor waterstop overlapping wrapped non-woven fabrics tighten, Duplication 20%；
9）Secondly, tightened in non-woven fabrics outside layer and connect the rubber extruding machine that sulphur squeezed in rubber production line by catenary suspension type continuous vulcanization and extrude the fire-retardant anti-tear chlorine of height
Change polyethylene rubber, extrusion temperature is controlled at 75 DEG C~88 DEG C, and production linear speed control is at 5~8 ms/min, and core is closed
Jet chimney heats continuous vulcanization, and jet chimney pressure control is in 0.9MPa~1.2MPa；It is cold by water cooled pipeline again after vulcanization
But, the control of cooling section coolant-temperature gage obtains the cable at 30 DEG C~50 DEG C.
8. a kind of insulation of second third according to claim 7 blocks water, the preparation method of fire-retardant flexible electric power cable, its feature exists
In：Step 3）In the fire-retardant ethylene-propylene rubber insulated layer of cross-linking type be by the third electro-insulating rubber of second, oxidant, plasticising by mixer
Agent, vulcanizing agent, reinforcing agent, antioxidant mixing, slice are exhausted into the third insulation rubber of fire-retardant second for meeting even sulphur extrusion, the fire-retardant second third
The component and mass fraction of edge rubber be：100 parts of EPDM, 4 ~ 8 parts of ZnO, 5 ~ 8 parts of plasticizer, 2 ~ 3 parts of antioxidant, reinforcement
50 ~ 75 parts of filler, 3 ~ 5 parts of vulcanizing agent, 8 ~ 10 parts of fire retardant.
9. a kind of insulation of second third according to claim 7 blocks water, the preparation method of fire-retardant flexible electric power cable, its feature exists
In step 8）In the anti-tear haloflex rubber oversheath of fire-retardant height be by mixer by chlorinated polyethylene rubber, oxidation
Agent, plasticizer, vulcanizing agent, reinforcing agent, antioxidant mixing, slice are protected into the anti-tear haloflex of fire-retardant height for meeting even sulphur extrusion
Rubber is covered, the component and mass fraction of the fire-retardant anti-tear chlorinated polyethylene sheath rubber of height are：100 parts of CPE, 6 ~ 12 parts of MgO,
15 ~ 20 parts of plasticizer, 2 ~ 3 parts of antioxidant, 60 ~ 80 parts of reinforcing filler, 20 ~ 30 parts of fire retardant, 4 ~ 6 parts of vulcanizing agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711434287.9A CN107945939B (en) | 2017-12-26 | 2017-12-26 | Ethylene-propylene insulating water-blocking flame-retardant power flexible cable and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711434287.9A CN107945939B (en) | 2017-12-26 | 2017-12-26 | Ethylene-propylene insulating water-blocking flame-retardant power flexible cable and preparation method thereof |
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| CN107945939A true CN107945939A (en) | 2018-04-20 |
| CN107945939B CN107945939B (en) | 2024-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517832A (en) * | 2019-08-28 | 2019-11-29 | 江苏亨通高压海缆有限公司 | production process and production system of water-blocking conductor |
| CN114068061A (en) * | 2021-12-28 | 2022-02-18 | 天津金山电线电缆股份有限公司 | Flexible cable for 10MW offshore wind generating set and preparation method thereof |
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| CN201562476U (en) * | 2009-12-15 | 2010-08-25 | 上海南大集团有限公司 | Ethylene propylene rubber-insulated metal-sprayed woven fabric-shielded flexible power cable |
| CN105968698A (en) * | 2016-06-30 | 2016-09-28 | 安徽埃克森科技集团有限公司 | Cable and production process thereof |
| CN106782832A (en) * | 2016-12-23 | 2017-05-31 | 绵阳市长信电线电缆有限公司 | Anti-explosion cable and preparation method thereof |
| CN207966511U (en) * | 2017-12-26 | 2018-10-12 | 无锡市明珠电缆有限公司 | A kind of insulation of second third blocks water, fire-retardant flexible electric power cable |
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| CN201562476U (en) * | 2009-12-15 | 2010-08-25 | 上海南大集团有限公司 | Ethylene propylene rubber-insulated metal-sprayed woven fabric-shielded flexible power cable |
| CN105968698A (en) * | 2016-06-30 | 2016-09-28 | 安徽埃克森科技集团有限公司 | Cable and production process thereof |
| CN106782832A (en) * | 2016-12-23 | 2017-05-31 | 绵阳市长信电线电缆有限公司 | Anti-explosion cable and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110517832A (en) * | 2019-08-28 | 2019-11-29 | 江苏亨通高压海缆有限公司 | production process and production system of water-blocking conductor |
| CN114068061A (en) * | 2021-12-28 | 2022-02-18 | 天津金山电线电缆股份有限公司 | Flexible cable for 10MW offshore wind generating set and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107945939B (en) | 2024-01-26 |
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