66-220kv XLPE Ultra High Power Cable, Ehv Power Cable

Construction Of Cable                                                             CABLE STANDARDS                                                                  GB/T11017,GB/Z18890,GB/Z22078,IEC and etc. upon request. Specification And Name1. YJLW02 Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath2. YJLW02-Z Longitudinal Water-blocking Power Cable with Copper conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath3. YJLW03 Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath4. YJLW03-Z Longitudinal Water-blocking Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath5. YJLLW02 Power Cable with Aluminum Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath6. YJLLW02-Z Longitudinal Water-blocking Power Cable with Aluminum Conductor, XLPE Insulation, Corru-gated Aluminum Sheath, PVC Outer Sheath7. YJLLW03 Power Cable with Aluminum Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath8. YJLLW03-Z Longitudinal Water-blocking Power Cable with Aluminum Conductor. XLPE Insulation, Corrugated Aluminum Sheath, PE Outer SheathOperating Environment1. Max admissible temperature for conductor: 90ºC under normal running condition; 250ºC under short circuit(max. duration is 5s)2. Min bending radius is recommended to be 20 times of cable overall diameter3. PVC sheathed cables shall not be installed if the environment temperature is below 0ºC,and if it is below 0ºC,the cable should be heated before the installationMetal Sheath1. Cables with corrugated aluminum sheath can be especially suitable for the following conditions in addition to the normal ones2. Cables with corrugated aluminum sheath: places where there is not much corrosion but much requirement for mechanical strength (e.g. direct connection to transformers, laying on bridges and in vertical shafts)Plastic Outer Sheath1. Cables with PVC outer sheath ( Type 02 ) are suitable for high voltage transmission line with general fireproof requirement and centain insulation requirement for the outer sheath2. Cables with PE outer sheath( Type 03 )are suitable for high voltage transmission line directly buried underground with higher insulation requirement on the outer sheath; and if they are laid in tunnels or vertical shafts, anti-fire and flame-retardant measures must be takenXLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 50/66kVConductorNominal thickness of insulation(mm)Aluminium sheath thickness(mm)Non-metallic  thickness(mm)Norminal Cross-sectional Area(mm²)ShapeApprox.diameter (mm)240Circular Compacted18.314.02.04.030020.614.02.04.040023.314.02.04.050026.414.02.04.063030.114.02.04.0800Milliken conductor34.814.02.04.0100038.814.02.34.0120042.014.02.34.0140045.214.02.34.0160048.014.02.34.0180050.814.02.34.0200054.014.02.34.0220057.414.02.34.0250061.214.02.34.0 XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 50/66kVNorminal Cross-sectional Area(mm²) Approx. Overall diameter(mm)Approx.weight of copper cable(kg/km)Approx.weight of copper cable(kg/km)Conductor  D.C resistance at 20ºC     (Ω/km)Cable Capacity   (μF/km)YJLW02 YJLW02-ZYJLW03YJLW03-ZYJLLW02 YJLLW02-ZYJLLW03YJLLW03-ZCopper conductorAluminium conductor24078.069506460546049700.07540.1250.15030082.076707190581053500.06010.1000.16240083.088408320639558800.04700.07780.17450086.0100659510708064200.03660.06050.18963091.01157010990767070900.02830.04690.20780097.01445013740934087880.02210.03670.2281000104.016730160701029096300.01760.02910.2601200107.0185401787010990103200.01510.02470.2681400109.0205701986011900112000.01290.02120.2851600114.0227802207012740120000.01130.01860.2981800116.0246902395013560128100.01010.01650.3112000120.0267802603014420136500.00900.01490.3262200123.0289202813015300145100.00830.01350.3422500126.0319703116016500156800.00730.01270.359 XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kVConductorNominal thickness of insulation(mm)Aluminium sheath thickness(mm)Non-metallic  thickness(mm)Norminal Cross-sectional Area(mm²)ShapeApprox.diameter (mm)240Circular Compacted18.319.02.04.030020.618.52.04.040023.317.52.04.050026.417.02.04.063030.116.52.04.5800Milliken conductor34.816.02.04.5100038.816.02.34.5120042.016.02.35.0140045.216.02.35.0160048.016.02.35.0180050.816.02.35.0200054.016.02.35.0220057.416.02.35.0250061.216.02.35.0XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kVNorminal Cross-sectional Area(mm²) Approx. Overall diameter(mm)Approx.weight of copper cable(kg/km)Approx.weight of copper cable(kg/km)Conductor  D.C resistance at 20ºC     (Ω/km)Cable Capacity   (μF/km)YJLW02 YJLW02-ZYJLW03YJLW03-ZYJLLW02 YJLLW02-ZYJLLW03YJLLW03-ZCopper conductorAluminium conductor24088.084006530694050700.07540.1250.12330090.090407150721053200.06010.1000.13440091.098907980748055700.04700.07780.14950093.0108908910797059900.03660.06050.16463097.01257010270882065200.02830.04690.183800104.01514012660994074700.02210.03670.2151000109.017740151501122086200.01760.02910.2331200114.019800168401229093300.01510.02470.2411400117.0219102098013240123100.01290.02120.2571600120.0241202287514130129700.01130.01860.2661800122.0254802454014320133900.01010.01650.2802000126.0272502631014860139300.00900.01490.2932200129.0304002937016780157500.00830.01350.3072500133.0330703204017590165700.00730.01270.322XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 127/220kVConductorNominal thickness of insulation(mm)Aluminium sheath thickness(mm)Non-metallic  thickness(mm)Norminal Cross-sectional Area(mm²)ShapeApprox.diameter (mm)400Circular Compacted23.327.02.45.050026.427.02.45.063030.126.02.45.0800Milliken conductor35.225.02.45.0100039.524.02.65.0120042.024.02.65.0140045.224.02.65.0160048.024.02.65.0180050.824.02.85.0200054.024.02.85.0220057.424.02.85.0250061.224.02.85.0 XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kVNorminal Cross-sectional Area(mm²) Approx. Overall diameter(mm)Approx.weight of copper cable(kg/km)Approx.weight of copper cable(kg/km)Conductor  D.C resistance at 20ºC     (Ω/km)Cable Capacity   (μF/km)YJLW02 YJLW02-ZYJLW03YJLW03-ZYJLLW02 YJLLW02-ZYJLLW03YJLLW03-ZCopper conductorAluminium conductor400118.012880120901055097600.04700.07780.144500121.0142601345011240104300.03660.06050.122630123.0156701485011740109200.02830.04690.135800129.0179601710012790119200.02210.03670.1541000132.0199201904013730128500.01760.02910.1701200135.0222302132014670137600.01510.02470.1801400138.0242902336015620146900.01290.02120.1901600141.0266502569016570159100.01130.01860.1981800144.0297102860018570174500.01010.01650.2052000146.0306102962018410174300.00900.01490.2132200150.0332703172019660185300.00830.01350.2232500157.0355203446020940198700.00720.01270.234 Current-carrying capacity and import factorsConductor cross-section AreaVoltage level66 KV110 KV220 KVTrefoil LayingParallel LayingTrefoil LayingParallel LayingTrefoil LayingParallel LayingIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuried240625545650570615535650555----3007 156 157506457 10605745635----4008206958657358 106858607208056708506805009607901010835936780100082692075098577563010908901 17095010758601 1559359658501 1308808001330106014351 1201295103513951090128098513851010100015151 1851640125014701 150158512251455108015601 13012001650127518001360160012351730132015851 1401710121514001780136019551460173513251890141517301205188012901600193014452 13515601860140520251505184512602005l;15018002050150522601640196514702 1601575195012902 130142620002 160156524 151725207516352280165520501310226514502200226016252560181021801620241517402 1651350240015002500238017002720191023201680258018202305141025301580 Current-carrying capacity and import factorsConductor cross-section AreaVoltage level66 KV110 KV220 KVTrefoil LayingParallel LayingTrefoil LayingParallel LayingTrefoil LayingParallel LayingIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuriedIn AirBuried240485425510445460420505435----300555480585505550475580496----400650550680575640540660570625530645550500750625795660740620790650730605775625630875715925755860705920745835690905735800100080510658509857951105850970780109083510001130895122095511158851205940110087011909251200124096513401030121595513151015120093513051005140013351025145511051305101514251085129010051400106516001420108015551170139010701520115013701035150511301800149011201645122014501110160511901420109015901180200015651165174512751530115516951250150011301665121522001640121018401330160512001785133015801175174012352500175012701970141017101260191014451695123518401370Assumed conditions for calculating Current-calculating Current:1. Max. Operating temperature of conductor is 90ºC, and max. short circuit temperature of conductor is 250ºC;2. single circuit,space between phases is cable diameter plus 70mm;3. Ambient temperature is 35ºC;4. Soil thermal resistance of direct butted is 1.0 k.m/W; depth of buried is 1000mm;5. Earthing method: single point grounding or cross type bondingDirect buried ambient temperature is influence on current-carrying capacityAmbient temp10l6202630354045Influence factor1.071.031.000.960.030.890.840.80soil thermal resistance coefficient influence on current-carrying capacity Thermal resistance coefficient0.711 .21 .522.53.Infinence fautor1.141.000.930.840.740.670.61Direct buried depth is influence on current-carrying capacity Depth of direct buried 500700900100012001500Influence factor 1.101.051 .011.000.980.95Air temperature's influence on current-carrying capacity Air temperature5l0l52025303540455055Influence factor 1.241.211.161.131.081.041.000.960.900 .850.80Single circuit parallel laying influence on current-carrying capacityLaying distance(mm) DD+70200250300350400Note:D is cable's overall diameterInfluence factor 0.931.001.031.051.071.081.10 Short Circuit Current  Unit:KA/1SConductor Cross-section areaConductor Short circuit currentCopper ConductorAluminium Conductor24034.322.730042.928.340057.237.860071.547.263090.159.5800114.575.61000143.094.51200171.7113.31400200.3132.21600228.9151.11800257.5170.02000286.2188.92200314.8207.82500357.7236.2 Process Flow ChartDrawing MachineEquipment Characteristics1. Non-clip drawing machine with 13 dies and separate driving motors2. Continuous annealing3. Inert gases protection4. Antioxidation material application5. Continuously dual bobbins spoolingFrame-type Stranded RFS630-84Technical Characteristics1. Produce circular compacted conductor with cross sectional area up to and including It00 mm'2. Produce the segment in milliken conductor with cross sectional area up to and including 3000mm²3. Compacting coefficient comes to 0.894. Continuously automatic loading/unloading5. With Max. Line speed of 60m/min6. Intelligent control Drum Twist Stranded DTPC3600Technical Characteristics1. Milliken conductor stranding into cironlarshape2. Produce Milliken conductor with cross-sectional area up to atincluding 3000hnm²3. Taping with constant tensionVCV Production LineEquipment Characteristics1. Maillefer water cooling extruder unit is most suitable for extrusion of high voltage XLPE.2. Central Water Station Temperature Control:no noise,being easy to control temperature and pressure,being equipped with precise proportional valve to ensure stable,temperature control and having no effect on generator room's constant temperature(extremely critical for high-pressure production).3. The best crosshead focusing on production of high voltage cables or extra high viltage cables is Maillefer's flat crosshead, which is characterized with fast and stable flow rate,eliminating the entangling risk .Tue to its long flows,there is no temperature interference between inner and outer shield layers and insulation layer.4. Energy efficient direct tube heating system.5. Maillefer is the first company who proposed the concept of post-heating and using the most stable pre-heating machine called YIFUDE in the world.Degas Equipment Characteristics1. Regular gas-exchange2. Intelligent temperature control Technical characteristics1. expertise, its function is to eliminate the residual gas of VCV production process.2. eliminate the insulation thermal stress insulation heating stress further.Metallic Sheath Production LineEquipment Characteristics1. Welding with double torch, and neat screen2. Welding various materials such as copper,aiummum and stainless steel3. Metallic sheath diameter is up to and including 200mm²4. Online inspection for the welding scam flaw Technical characteristics1. With continues wave, free adjustment of the depth and pitch2. Even thickness of the metal sheath,without any eccentricity,sand hole,blister and transverse crack3. Outstanding water blocking performance4. Meeting short-circuit current capacityOuter Sheath Production LineEquipment Characteristics1. Two extruders with diameter of 911 and 1511 running together can realize the extrusion of single layer or double layers with different materials simultaneously2. With graphite coating equipment3. Measuring device for the overall diameter4. Jetting, printing and meter counting equipment5. Max. Diameter for the pay-off drum and take-up drum is 4200mm Equipment Advantage1. Produce outer sheath with cable overall diameter up to and including 200mm2. Excellent control for outer diameter and eccentricityTest SystemEquipment Characteristics1. All-metal shielding mom with dimension of 35m x 30m x 20m2. Series resonant system with max. voltage of 700kV, 35A3. Tests for resistance, capacitance, and dielectric loss, partial discharge and withstand voltage4. Max. Load capacitance of 637μfPackage1. Pack according to national standard or customer' s require-ment;2.  Professional package design, firm and durable,protect the cable effectively.