CN106057371A - Smart energy HCCV ultrahigh-voltage crosslinking polyethylene-insulated power cable and manufacturing method thereof - Google Patents

Smart energy HCCV ultrahigh-voltage crosslinking polyethylene-insulated power cable and manufacturing method thereof Download PDF

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Publication number
CN106057371A
CN106057371A CN201610533551.3A CN201610533551A CN106057371A CN 106057371 A CN106057371 A CN 106057371A CN 201610533551 A CN201610533551 A CN 201610533551A CN 106057371 A CN106057371 A CN 106057371A
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layer
conductor
semiconductive
semi
hccv
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CN106057371B (en
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刘学
周锋
陆正荣
陈东
邹鹏飞
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Far East Submarine Cable Co ltd
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Far East Cable Co Ltd
New Far East Cable Co Ltd
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    • 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
    • H01B13/02—Stranding-up
    • 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
    • H01B13/06—Insulating conductors or cables
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • 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
    • H01B7/20—Metal tubes, e.g. lead sheaths
    • H01B7/201—Extruded metal tubes
    • 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
    • H01B7/2806—Protection against damage caused by corrosion
    • 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
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a smart energy HCCV ultrahigh-voltage crosslinking polyethylene-insulated power cable and a manufacturing method thereof. The method comprises the following steps: 1, manufacturing a compacted circular conductor or a segmentation conductor; 2, producing a crosslinking insulation core through an HCCV catenary suspension type crosslinking three-layer co-extrusion production line; 3, manufacturing a semiconductive buffer watertight layer with a longitudinal water-resisting function; 4, manufacturing a light and environmentally friendly extrusion seamless metal sheath with radial water resistance and corrosion resistance performance; and 5, manufacturing a waterproof and anticorrosion outer jacket. According to the method provided by the invention, the production efficiency is high, the investment cost is low, the ultrahigh-voltage crosslinking polyethylene-insulated power cable manufactured by use of the method has the advantages of high voltage grade, large transmission capacity, excellent electrical performance, convenient installation laying, low fault rate, easy maintenance and the like, the method is applied to a power station and a city power network, and the transmission demands of power and communication are satisfied.

Description

The wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable and manufacture method
Technical field
Patent of the present invention relates to a kind of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable and manufacturer Method.
Background technology
Along with the continuous growth of socioeconomic development and need for electricity, power cable the most progressively to higher voltage grade, Bigger transmission capacity develops, and along with the raising of the resistance to voltage levels that insulate, high pressure, the application of extra-high-tension cable also get more and more.New energy The new application field of cable has the most greatly been expanded in the construction in power station, source, the development of equipment manufacturing, the popularization etc. of track traffic.
500kV ultra-high voltage cross-linking polyethylene-insulated power cable has had partial cables manufacturer to develop at present Out, cross-linking process step is all to use vertical tower ultra-high voltage cross-linking technique (VCV), although VCV is manufacturing ultra-high voltage cross-linking cable ratio Supertension stretched wire cross-linking production line (HCCV) is the easiest, and insulation eccentricity is prone to ensure, but catenary crosslinking technique manufactures superelevation Pressure crosslinked cable more can embody it and have higher technical merit, and not only production efficiency improves, and cost of investment reduces.
In recent years, its automatic control in the production line technology of catenary crosslinking technique is more sophisticated, and pendency controls relatively reliable, machine Head runner design more science, uses conductor pre-heating, online accurately measurement, and without friction gravity blanking, hightension dual rotary is drawn, Crosslinking pipe temperature uses computer software to automatically control according to crosslinked polymer characteristic, and these significant increase CCV cross-link work Skill manufactures the technical feasibility of high pressure and ultra-high voltage cross-linking power cable, and the high voltage cross-linking power cable produced by CCV technique applies If before the history run also can trace back to vertical cross-linked technique, illustrating that its product quality is reliable.
Summary of the invention
First purpose of the present invention is to provide a kind of wisdom energy HCCV ultra-high voltage cross-linking polyethylene insulation electric power electricity The manufacture method of cable, produces and has that electric pressure is high, transmission capacity big, excellent electrical properties, mounting and installation are convenient, fault rate The feature such as low, to be easily maintained, it is adaptable in power station and urban distribution network, meets the cable of electric power and the transmission demand of communication.
The technical scheme realizing first purpose of the present invention is the system of HCCV ultra-high voltage cross-linking polyethylene-insulated power cable Make method, comprise the following steps:
Step one: determine the construction of cable be followed successively by from the inside to the outside conductor, semi-conductive tape, extrude semiconductive conductor shield, XLPE insulating barrier, semi-conductive insulation shield layer, semi-conductive buffer water-blocking band, extrude outside corrugated aluminum sheath, asphalt corrosion resistant layer, MDPE Sheath and extrude semiconductive PE external electrode；
Step 2: according to GB/T 22078-2008 standard, according to single line radical minimum in conductor, conductor direct current when 20 DEG C Resistance maximum, is the resistivity of monofilament selected by resistance formula R=ρ L/S, ρ, L be 1000m, S be sectional area；Calculate and cut Area S；
Step 3: use one layer of semiconductive nylon tape and the special many tengential belts of one layer of semiconductive around wrapping in outside conductor, as half Conductive strips, its rate of putting up is 25%-35%；
Step 4: use the three-layer co-extruded technique of HCCV to extrude semiconductive conductor shield, XLPE insulation outside semi-conductive tape Layer, semi-conductive insulation shield layer；
Step 5: use two-layer semi-conductive buffer water-blocking band around wrapping in outside semi-conductive insulation shield layer, delay as semiconductive Rushing waterstop, the rate of putting up is 45%～50%；
Step 6: use and extrude corrugated aluminum sheath technique continuously and extrude wrinkle aluminum outside semi-conductive buffer water-blocking band and protect Set；
Step 7: use double-layer coextrusion production line, outside corrugated aluminum sheath coat asphalt corrosion resistant layer, MDPE oversheath and Semiconductive PE external electrode is extruded simultaneously.
In described step 2, conductor is one strand or multiply strand, and per share strand is stranded by multifilament；When leading When body is multiply, uses AutoCAD to draw conductor segmentation sectional view, design strand pinch roller.
In described step 2, the monofilament in conductor uses double end even to move back the drawing of copper big drawing machine, and string diameter controls tolerance+ 0.01mm, elongation at break >=30%；Use 91 dish frame winches by stranded for monofilament for strand.
In described step 2, when conductor is multiply, it is divided into center strand and peripheral strand, peripheral strand and center strand Carrying out outside diameter control tolerance+0.5mm during stranding, laying up pitch is identical with strand pretwist pitch, synchronizes wrapped step 3 during stranding In one layer of semiconductive nylon tape and the special many tengential belts of one layer of semiconductive.
In the three-layer co-extruded technique of HCCV of described step 4, according to semiconductive conductor shield, XLPE insulating barrier and partly lead The extrusion performance design extrusion temperature of electric insulation polymeric barrier layer materials, uses blast conductor preheater, uses online derivometer detection electricity Cable bias situation, nitrogen pressure is sufficient, and traction rotates rice number and penalty coefficient is adjusted according to different size, pre-tuningout up and down The heart is up and down slightly larger than left and right.
Described step 4 extrude semiconductive conductor shield, ultra-clean XLPE insulation layer by layer with ultra-smooth semi-conductive insulation screen Cover thickness layer by layer and be respectively 2.2mm, 31.0mm and 1.5mm.
Described step 4 complete after core, use and put into drying room after degassing dish take-up and be de-gassed, degassing natural law is 20 ～21 days, degassing temperature is 65～75 DEG C, and degassing time arrives, and closes thermal source, parks 24 hours.
The corrugated aluminum sheath embossing degree of depth that extrudes continuously of described step 6 guarantees there is gap；Described step 7 is protected outside MDPE Set thickness is 6.0mm, and semiconductive PE external electrode thickness is 0.4mm.
Second object of the present invention is to provide a kind of HCCV ultra-high voltage cross-linking polyethylene-insulated power cable.
The technical scheme realizing second purpose of the present invention is HCCV ultra-high voltage cross-linking polyethylene-insulated power cable, by interior To be followed successively by outward conductor, semi-conductive tape, semiconductive conductor shield, XLPE insulating barrier, semi-conductive insulation shield layer, semiconductive delay Rush waterstop, corrugated aluminum sheath, asphalt corrosion resistant layer, MDPE oversheath and semiconductive PE external electrode；Described semi-conductive tape is one layer Semiconductive nylon tape and one layer of special many tengential belt of semiconductive, the rate of putting up is 25%-35%；Described semi-conductive buffer water-blocking band is two-layer The rate of putting up be 45%～50% semi-conductive buffer water-blocking band wrapped；Described conductor is one strand or multiply strand, per share Strand is stranded by multifilament, when conductor is multiply, is divided into center strand and peripheral strand.
Described semiconductive conductor shield, ultra-clean XLPE insulate layer by layer, ultra-smooth semi-conductive insulation shield layer by layer, outside MDPE The thickness of sheath and semiconductive PE external electrode is respectively 2.2mm, 31.0mm, 1.5mm, 6.0mm and 0.4mm.
Using technique scheme, patent of the present invention has the advantages that the method production efficiency of (1) present invention Height, cost of investment is low, uses the ultra-high voltage cross-linking polyethylene-insulated power cable of this method manufacture to have electric pressure height, transmission Capacity is big, excellent electrical properties, mounting and installation convenience, failure rate is low, the feature such as be easily maintained, it is adaptable to power station and urban distribution network In, meet the transmission demand of electric power and communication.
(2) the HCCV cross-linked three-layer co-extrusion technique of the present invention, conductor pre-heating temperature controls, improves the heat of cross-linked cable insulating Stress, reduces the temperature of crosslinking pipe, thus reduces the cable temperature in crosslinking bringing-up section, it is to avoid high-temperature cross-linking, make electricity Cable insulation internal-external temperature difference reduces, it is to avoid insulation conductor 801 excessively shrinks, and excessively expands to outside.Traction rotary speed is according to electricity Cable specification, insulation thickness, speed of production follow the tracks of regulation, and the size set point of pre-eccentric can further ensure that the present invention produces Cable insulation core shift degree conformance with standard≤5%, even above standard-required.The cross-linking production line of catenary suspension type continuous vulcanization at ordinary plant is Can install and use, old friend joins bringing-up section pipeline and saves than vertical tower long 3～4, and cooling effect is more preferable step by step, the roundness of crosslinking core More preferably.
(3) what the present invention innovated is combined with GB, and conductor filament diameter, global sections are long-pending, conductor DC resistance is the fullest Foot GB/T 22078-2008 standard.
(4) present invention extrude corrugated aluminum sheath, as the radial direction waterproof layer of cable, anti-than welding type corrugated aluminum sheath Aqueous can be more preferably, it is possible to prevents XLPE insulated contact from producing water tree after water；As mechanical protection layer, insulated wire cores is played guarantor Protect effect, it is to avoid insulated wire cores is produced and destroys by external force；Zero sequence short circuit current, heat stability can be born as metal screen layer Good.
Accompanying drawing explanation
In order to make the content of patent of the present invention be easier to be clearly understood, below according to specific embodiment and combine attached Figure, is described in further detail this practicality, wherein
Fig. 1 is the construction of cable schematic diagram of the present invention, and in figure, conductor is single cord.
Fig. 2 is the construction of cable schematic diagram of the present invention, and in figure, conductor is many strands.
Accompanying drawing is numbered:
Conductor 1, semi-conductive tape 2, extrude semiconductive conductor shield 3, XLPE insulating barrier 4, semi-conductive insulation shield layer 5, Semi-conductive buffer water-blocking band 6, corrugated aluminum sheath 7, asphalt corrosion resistant layer 8, MDPE oversheath 9, semiconductive PE external electrode 10.
Detailed description of the invention
(embodiment 1)
See Fig. 1 and Fig. 2, the wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable of the present embodiment by interior extremely It is followed successively by outward conductor 1, semi-conductive tape 2, semiconductive conductor shield 3, XLPE insulating barrier 4, semi-conductive insulation shield layer 5, partly leads Electricity buffer water-blocking band 6, corrugated aluminum sheath 7, asphalt corrosion resistant layer 8, MDPE oversheath 9 and semiconductive PE external electrode 10；Semi-conductive tape 2 Being one layer of semiconductive nylon tape and one layer of special many tengential belt of semiconductive, the rate of putting up is 25%-35%；Semi-conductive buffer water-blocking band 6 is The two-layer rate of putting up be 45%～50% semi-conductive buffer water-blocking band wrapped；Semiconductive conductor shield 3, ultra-clean XLPE insulating barrier Layer 4, the thickness of ultra-smooth semi-conductive insulation shield 5, MDPE oversheath 9 and semiconductive PE external electrode 10 layer by layer be respectively 2.2mm, 31.0mm, 1.5mm, 6.0mm and 0.4mm.As it is shown in figure 1, conductor 1 is one strand.As in figure 2 it is shown, conductor 1 is multiply stock Line, per share strand is stranded by multifilament, is divided into center strand and peripheral strand.
Manufacture method, comprises the following steps:
Step one: determine that the construction of cable is followed successively by conductor 1, semi-conductive tape 2 from the inside to the outside, extrudes semiconductive conductor shield 3, XLPE insulating barrier 4, semi-conductive insulation shield layer 5, semi-conductive buffer water-blocking band 6, extrude corrugated aluminum sheath 7, asphalt corrosion resistant layer 8, MDPE oversheath 9 and extrude semiconductive PE external electrode 10；
Step 2: according to GB/T 22078-2008 standard, according to single line radical minimum in conductor, conductor direct current when 20 DEG C Resistance maximum, is the resistivity of monofilament selected by resistance formula R=ρ L/S, ρ, L be 1000m, S be sectional area；Calculate and cut Area S；Conductor 1 is one strand or multiply strand, and per share strand is stranded by multifilament；Monofilament in conductor 1 uses Double end is even moved back copper big drawing machine and is drawn, and string diameter controls tolerance+0.01mm, elongation at break >=30%；Use 91 dish frame winches by single Skein silk is combined into strand.When conductor 1 is multiply, uses AutoCAD to draw conductor segmentation sectional view, design strand pinch roller, conductor Being divided into center strand and peripheral strand, peripheral strand carries out outside diameter control tolerance+0.5mm, stranding during stranding with center strand Pitch is identical with strand pretwist pitch, synchronizes one layer of semiconductive nylon tape in wrapped step 3 and one layer of semiconductive spy during stranding Many tengential belts.Sectional area is 800mm2Following conductor should use the 2nd kind that meets GB/T 3956 and press stranded circular configuration, cuts Area is 800mm2Above conductor should use milliken conductor structure；800mm2Conductor can use and press stranded circular configuration, Milliken conductor structure can also be used.
Step 3: use one layer of semiconductive nylon tape and one layer of special many tengential belt of semiconductive outside around wrapping in conductor 1, as half Conductive strips 2, its rate of putting up is 25%-35%；
Step 4: use the three-layer co-extruded technique of HCCV exhausted at semi-conductive tape 2 outer extrusion semiconductive conductor shield 3, XLPE Edge layer 4, semi-conductive insulation shield layer 5；According to semiconductive conductor shield 3, XLPE insulating barrier 4 and semi-conductive insulation shield layer 5 The extrusion performance design extrusion temperature of material, extrusion temperature scope 65～75 DEG C, semi-conductive insulation shield layer 5；According to semiconductive Conductor shield 3 extrudes melt temperature 115 DEG C, insulation extrusion melt temperature 120 DEG C, conductor pre-heating temperature 80 ± 3 DEG C.Use Online derivometer detection cable eccentricity situation, nitrogen pressure is sufficient, and traction rotation rice number and penalty coefficient are advised according to difference up and down Lattice are adjusted, and pre-eccentric is up and down slightly larger than left and right.Extrude semiconductive conductor shield 3, ultra-clean XLPE insulation 4 and layer by layer Ultra-smooth semi-conductive insulation shield layer by layer 5 thickness be respectively 2.2mm, 31.0mm and 1.5mm.Degassing dish is used after having extruded Putting into drying room after take-up to be de-gassed, degassing natural law is 20～21 days, and degassing temperature is 65～75 DEG C, and degassing time arrives, and closes Thermal source, parks 24 hours.Traction rotates secretary and penalty coefficient is carried out according to following up and down:
Specification (mm2) 400 500 630 800 1000 1200 1600 1800 2000 2500
Length of rotation (m) 10 10 10 11 12 12 13 14 14 16
Penalty coefficient (%) 90 90 90 90 90 90 90 90 90 90
Step 5: use two-layer semi-conductive buffer water-blocking band around wrapping in outside semi-conductive insulation shield layer 5, delay as semiconductive Rushing waterstop 6, the rate of putting up is 45%～50%；
Step 6: use and extrude corrugated aluminum sheath technique continuously and extrude wrinkle aluminum outside semi-conductive buffer water-blocking band 6 and protect Set 7；Extrude the corrugated aluminum sheath embossing degree of depth continuously and guarantee there is gap；In described step 7, MDPE oversheath 9 thickness is 6.0mm, Semiconductive PE external electrode 10 thickness is 0.4mm.
Step 7: use double-layer coextrusion production line, coats asphalt corrosion resistant layer 8, MDPE oversheath outside corrugated aluminum sheath 7 9 and semiconductive PE external electrode 10 extrude simultaneously.
For the electric and mechanical performance of the HCCV ultra-high voltage cross-linking polyethylene-insulated power cable that checking this method manufactures, press Method according to the present embodiment manufactures a complete cable, carries out every test according to national standard, and test result is satisfied by mark Alignment request.
Particular embodiments described above, has carried out entering one to purpose, technical scheme and the beneficial effect of patent of the present invention Step describes in detail, be it should be understood that the above a kind of wisdom energy HCCV ultra-high voltage cross-linking polyethylene insulation electric power electricity The manufacture method of cable is only the specific embodiment of the present invention and represents, and is not limited to the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.

Claims (10)

1. the wisdom energy manufacture method of HCCV ultra-high voltage cross-linking polyethylene-insulated power cable, it is characterised in that include following Step:
Step one: determine that the construction of cable is followed successively by conductor (1), semi-conductive tape (2) from the inside to the outside, extrudes semiconductive conductor shield (3), XLPE insulating barrier (4), semi-conductive insulation shield layer (5), semi-conductive buffer water-blocking band (6), extrude corrugated aluminum sheath (7), Asphalt corrosion resistant layer (8), MDPE oversheath (9) and extrude semiconductive PE external electrode (10)；
Step 2: according to GB/T 22078-2008 standard, according to single line radical minimum in conductor, conductor DC resistance when 20 DEG C Maximum, is the resistivity of monofilament selected by resistance formula R=ρ L/S, ρ, L be 1000m, S be sectional area；Calculate sectional area S；
Step 3: use one layer of semiconductive nylon tape and one layer of special many tengential belt of semiconductive outside, as partly leading around wrapping in conductor (1) Electricity band (2), its rate of putting up is 25%-35%；
Step 4: use the three-layer co-extruded technique of HCCV to extrude outward semiconductive conductor shield (3), XLPE at semi-conductive tape (2) exhausted Edge layer (4), semi-conductive insulation shield layer (5)；
Step 5: employing two-layer semi-conductive buffer water-blocking band is around wrapping in semi-conductive insulation shield layer (5) outward, as semi-conductive buffer Waterstop (6), the rate of putting up is 45%～50%；
Step 6: employing extrudes corrugated aluminum sheath technique continuously and extrudes corrugated aluminum sheath in semi-conductive buffer water-blocking band (6) outside (7)；
Step 7: use double-layer coextrusion production line, at corrugated aluminum sheath (7) outside coating asphalt corrosion resistant layer (8), MDPE oversheath And semiconductive PE external electrode (10) is extruded simultaneously (9).
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 1 Method, it is characterised in that: in described step 2, conductor (1) is one strand or multiply strand, and per share strand is by multifilament Stranded；When conductor (1) is multiply, uses AutoCAD to draw conductor segmentation sectional view, design strand pinch roller.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 2 Method, it is characterised in that: in described step 2, the monofilament in conductor (1) uses double end even to move back the drawing of copper big drawing machine, and string diameter controls public affairs Difference ± 0.01mm, elongation at break >=30%；Use 91 dish frame winches by stranded for monofilament for strand.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 3 Method, it is characterised in that: in described step 2, when conductor (1) is multiply, it is divided into center strand and peripheral strand, peripheral strand Outside diameter control tolerance+0.5mm when carrying out stranding with center strand, laying up pitch is identical with strand pretwist pitch, synchronizes during stranding One layer of semiconductive nylon tape in wrapped step 3 and one layer of special many tengential belt of semiconductive.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 1 Method, it is characterised in that: in the three-layer co-extruded technique of HCCV of described step 4, according to semiconductive conductor shield (3), XLPE insulation The extrusion performance design extrusion temperature of layer (4) and semi-conductive insulation shield layer (5) material, uses blast conductor preheater, uses Line derivometer detection cable eccentricity situation, nitrogen pressure is sufficient, and traction rotates rice number and penalty coefficient according to different size up and down Being adjusted, pre-eccentric is up and down slightly larger than left and right.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 4 Method, it is characterised in that: described step 4 extrude semiconductive conductor shield (3), ultra-clean XLPE insulation (4) and ultra-smooth layer by layer The thickness of semi-conductive insulation shield (5) layer by layer is respectively 2.2mm, 31.0mm and 1.5mm.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 4 Method, it is characterised in that: described step 4 complete after core, use and put into drying room after degassing dish take-up and be de-gassed, deaerate sky Number is 20～21 days, and degassing temperature is 65～75 DEG C, and degassing time arrives, and closes thermal source, parks 24 hours.
The manufacturer of wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 4 Method, it is characterised in that: the corrugated aluminum sheath embossing degree of depth that extrudes continuously of described step 6 guarantees there is gap；In described step 7 MDPE oversheath (9) thickness is 6.0mm, and semiconductive PE external electrode (10) thickness is 0.4mm.
9. wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable, it is characterised in that: it is followed successively by from the inside to the outside and leads Body (1), semi-conductive tape (2), semiconductive conductor shield (3), XLPE insulating barrier (4), semi-conductive insulation shield layer (5), partly lead Electricity buffer water-blocking band (6), corrugated aluminum sheath (7), asphalt corrosion resistant layer (8), MDPE oversheath (9) and semiconductive PE external electrode (10)；Described semi-conductive tape (2) is one layer of semiconductive nylon tape and one layer of special many tengential belt of semiconductive, and the rate of putting up is 25%-35%； Described semi-conductive buffer water-blocking band (6) be the two-layer rate of putting up be 45%～50% semi-conductive buffer water-blocking band wrapped；Described lead Body (1) is one strand or multiply strand, and per share strand is stranded by multifilament, when conductor (1) is multiply, is divided into center Strand and peripheral strand.
Wisdom energy HCCV ultra-high voltage cross-linking polyethylene-insulated power cable the most according to claim 9, its feature exists In: described semiconductive conductor shield (3), ultra-clean XLPE insulation (4), ultra-smooth semi-conductive insulation shield (5) layer by layer layer by layer, The thickness of MDPE oversheath (9) and semiconductive PE external electrode (10) is respectively 2.2mm, 31.0mm, 1.5mm, 6.0mm and 0.4mm.
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CN108091433A (en) * 2017-12-12 2018-05-29 杭州电缆股份有限公司 The processing method that high pressure corrugated metal covers low eccentricity polyethylene outer sheath power cable
CN108091442A (en) * 2017-12-12 2018-05-29 杭州电缆股份有限公司 A kind of high roundness crosslinking core medium-pressure power cable and its manufacturing method
CN109473225A (en) * 2018-12-17 2019-03-15 山东科虹线缆科技有限公司 Termite-proof extra-high-tension cable of the crosslinked polyetylene insulated protection against rodents of 220kV and preparation method thereof
CN109727714A (en) * 2018-12-17 2019-05-07 山东科虹线缆科技有限公司 Crosslinked polyetylene insulated corrugated aluminium sheath armored high-voltage cable and preparation method thereof
CN109920591A (en) * 2019-04-18 2019-06-21 安徽顺信线缆有限公司 A kind of fire resistant flexible elevator trailing data cable
CN111613390A (en) * 2020-05-14 2020-09-01 江苏亨通高压海缆有限公司 Production method of alternating current-direct current hybrid submarine cable for offshore wind power
CN111961239A (en) * 2020-07-23 2020-11-20 上海摩恩电气股份有限公司 Method for enhancing insulation stability of crosslinked polyethylene insulated power cable

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CN108091433A (en) * 2017-12-12 2018-05-29 杭州电缆股份有限公司 The processing method that high pressure corrugated metal covers low eccentricity polyethylene outer sheath power cable
CN108091442A (en) * 2017-12-12 2018-05-29 杭州电缆股份有限公司 A kind of high roundness crosslinking core medium-pressure power cable and its manufacturing method
CN108091433B (en) * 2017-12-12 2021-05-25 杭州电缆股份有限公司 Processing method of high-voltage corrugated metal sleeve low-eccentricity polyethylene outer sheath power cable
CN109473225A (en) * 2018-12-17 2019-03-15 山东科虹线缆科技有限公司 Termite-proof extra-high-tension cable of the crosslinked polyetylene insulated protection against rodents of 220kV and preparation method thereof
CN109727714A (en) * 2018-12-17 2019-05-07 山东科虹线缆科技有限公司 Crosslinked polyetylene insulated corrugated aluminium sheath armored high-voltage cable and preparation method thereof
CN109920591A (en) * 2019-04-18 2019-06-21 安徽顺信线缆有限公司 A kind of fire resistant flexible elevator trailing data cable
CN111613390A (en) * 2020-05-14 2020-09-01 江苏亨通高压海缆有限公司 Production method of alternating current-direct current hybrid submarine cable for offshore wind power
CN111961239A (en) * 2020-07-23 2020-11-20 上海摩恩电气股份有限公司 Method for enhancing insulation stability of crosslinked polyethylene insulated power cable

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