Basic Info.
Model NO.
66-220KV XLPE Power Cable
Application
Industrial, Power Station
Voltage
Ultra-high Voltage Cable
Material Shape
Round Wire
Wire Core Material
Bare Copper Wire
Model
Yjlw02,Yjlw02-Z,Yjlw03,Yjlw03-Z,Yjllw02,Yjllw02-Z,
Conductor
Milliken Conductor or Round Conductor
Material of Conductor
Aluminium or Copper
Product Description
Construction Of Cable
CABLE STANDARDS
GB/T11017,GB/Z18890,GB/Z22078,IEC and etc. upon request.
Specification And Name
1. YJLW02
Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath
2. YJLW02-Z
Longitudinal Water-blocking Power Cable with Copper conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath
3. YJLW03
Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath
4. YJLW03-Z
Longitudinal Water-blocking Power Cable with Copper Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath
5. YJLLW02
Power Cable with Aluminum Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PVC Outer Sheath
6. YJLLW02-Z
Longitudinal Water-blocking Power Cable with Aluminum Conductor, XLPE Insulation, Corru-gated Aluminum Sheath, PVC Outer Sheath
7. YJLLW03
Power Cable with Aluminum Conductor, XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath
8. YJLLW03-Z
Longitudinal Water-blocking Power Cable with Aluminum Conductor. XLPE Insulation, Corrugated Aluminum Sheath, PE Outer Sheath
Operating Environment
1. 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 diameter
3. 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 installation
Metal Sheath
1. Cables with corrugated aluminum sheath can be especially suitable for the following conditions in addition to the normal ones
2. 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 Sheath
1. 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 sheath
2. 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 taken
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 50/66kV
Conductor
Nominal thickness of insulation(mm)
Aluminium sheath thickness(mm)
Non-metallic thickness(mm)
Norminal Cross-sectional Area(mm²)
Shape
Approx.diameter (mm)
240
Circular Compacted
18.3
14.0
2.0
4.0
300
20.6
14.0
2.0
4.0
400
23.3
14.0
2.0
4.0
500
26.4
14.0
2.0
4.0
630
30.1
14.0
2.0
4.0
800
Milliken conductor
34.8
14.0
2.0
4.0
1000
38.8
14.0
2.3
4.0
1200
42.0
14.0
2.3
4.0
1400
45.2
14.0
2.3
4.0
1600
48.0
14.0
2.3
4.0
1800
50.8
14.0
2.3
4.0
2000
54.0
14.0
2.3
4.0
2200
57.4
14.0
2.3
4.0
2500
61.2
14.0
2.3
4.0
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 50/66kV
Norminal 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-Z
YJLW03
YJLW03-Z
YJLLW02 YJLLW02-Z
YJLLW03
YJLLW03-Z
Copper conductor
Aluminium conductor
240
78.0
6950
6460
5460
4970
0.0754
0.125
0.150
300
82.0
7670
7190
5810
5350
0.0601
0.100
0.162
400
83.0
8840
8320
6395
5880
0.0470
0.0778
0.174
500
86.0
10065
9510
7080
6420
0.0366
0.0605
0.189
630
91.0
11570
10990
7670
7090
0.0283
0.0469
0.207
800
97.0
14450
13740
9340
8788
0.0221
0.0367
0.228
1000
104.0
16730
16070
10290
9630
0.0176
0.0291
0.260
1200
107.0
18540
17870
10990
10320
0.0151
0.0247
0.268
1400
109.0
20570
19860
11900
11200
0.0129
0.0212
0.285
1600
114.0
22780
22070
12740
12000
0.0113
0.0186
0.298
1800
116.0
24690
23950
13560
12810
0.0101
0.0165
0.311
2000
120.0
26780
26030
14420
13650
0.0090
0.0149
0.326
2200
123.0
28920
28130
15300
14510
0.0083
0.0135
0.342
2500
126.0
31970
31160
16500
15680
0.0073
0.0127
0.359
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kV
Conductor
Nominal thickness of insulation(mm)
Aluminium sheath thickness(mm)
Non-metallic thickness(mm)
Norminal Cross-sectional Area(mm²)
Shape
Approx.diameter (mm)
240
Circular Compacted
18.3
19.0
2.0
4.0
300
20.6
18.5
2.0
4.0
400
23.3
17.5
2.0
4.0
500
26.4
17.0
2.0
4.0
630
30.1
16.5
2.0
4.5
800
Milliken conductor
34.8
16.0
2.0
4.5
1000
38.8
16.0
2.3
4.5
1200
42.0
16.0
2.3
5.0
1400
45.2
16.0
2.3
5.0
1600
48.0
16.0
2.3
5.0
1800
50.8
16.0
2.3
5.0
2000
54.0
16.0
2.3
5.0
2200
57.4
16.0
2.3
5.0
2500
61.2
16.0
2.3
5.0
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kV
Norminal 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-Z
YJLW03
YJLW03-Z
YJLLW02 YJLLW02-Z
YJLLW03
YJLLW03-Z
Copper conductor
Aluminium conductor
240
88.0
8400
6530
6940
5070
0.0754
0.125
0.123
300
90.0
9040
7150
7210
5320
0.0601
0.100
0.134
400
91.0
9890
7980
7480
5570
0.0470
0.0778
0.149
500
93.0
10890
8910
7970
5990
0.0366
0.0605
0.164
630
97.0
12570
10270
8820
6520
0.0283
0.0469
0.183
800
104.0
15140
12660
9940
7470
0.0221
0.0367
0.215
1000
109.0
17740
15150
11220
8620
0.0176
0.0291
0.233
1200
114.0
19800
16840
12290
9330
0.0151
0.0247
0.241
1400
117.0
21910
20980
13240
12310
0.0129
0.0212
0.257
1600
120.0
24120
22875
14130
12970
0.0113
0.0186
0.266
1800
122.0
25480
24540
14320
13390
0.0101
0.0165
0.280
2000
126.0
27250
26310
14860
13930
0.0090
0.0149
0.293
2200
129.0
30400
29370
16780
15750
0.0083
0.0135
0.307
2500
133.0
33070
32040
17590
16570
0.0073
0.0127
0.322
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 127/220kV
Conductor
Nominal thickness of insulation(mm)
Aluminium sheath thickness(mm)
Non-metallic thickness(mm)
Norminal Cross-sectional Area(mm²)
Shape
Approx.diameter (mm)
400
Circular Compacted
23.3
27.0
2.4
5.0
500
26.4
27.0
2.4
5.0
630
30.1
26.0
2.4
5.0
800
Milliken conductor
35.2
25.0
2.4
5.0
1000
39.5
24.0
2.6
5.0
1200
42.0
24.0
2.6
5.0
1400
45.2
24.0
2.6
5.0
1600
48.0
24.0
2.6
5.0
1800
50.8
24.0
2.8
5.0
2000
54.0
24.0
2.8
5.0
2200
57.4
24.0
2.8
5.0
2500
61.2
24.0
2.8
5.0
XLPE Insulation Corrugated Aluminum Sheath For Rated Voltage Of 64/110kV
Norminal 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-Z
YJLW03
YJLW03-Z
YJLLW02 YJLLW02-Z
YJLLW03
YJLLW03-Z
Copper conductor
Aluminium conductor
400
118.0
12880
12090
10550
9760
0.0470
0.0778
0.144
500
121.0
14260
13450
11240
10430
0.0366
0.0605
0.122
630
123.0
15670
14850
11740
10920
0.0283
0.0469
0.135
800
129.0
17960
17100
12790
11920
0.0221
0.0367
0.154
1000
132.0
19920
19040
13730
12850
0.0176
0.0291
0.170
1200
135.0
22230
21320
14670
13760
0.0151
0.0247
0.180
1400
138.0
24290
23360
15620
14690
0.0129
0.0212
0.190
1600
141.0
26650
25690
16570
15910
0.0113
0.0186
0.198
1800
144.0
29710
28600
18570
17450
0.0101
0.0165
0.205
2000
146.0
30610
29620
18410
17430
0.0090
0.0149
0.213
2200
150.0
33270
31720
19660
18530
0.0083
0.0135
0.223
2500
157.0
35520
34460
20940
19870
0.0072
0.0127
0.234
Current-carrying capacity and import factors
Conductor cross-section Area
Voltage level
66 KV
110 KV
220 KV
Trefoil Laying
Parallel Laying
Trefoil Laying
Parallel Laying
Trefoil Laying
Parallel Laying
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
240
625
545
650
570
615
535
650
555
-
-
-
-
300
7 15
6 15
750
645
7 10
605
745
635
-
-
-
-
400
820
695
865
735
8 10
685
860
720
805
670
850
680
500
960
790
1010
835
936
780
1000
826
920
750
985
775
630
1090
890
1 170
950
1075
860
1 155
935
965
850
1 130
880
800
1330
1060
1435
1 120
1295
1035
1395
1090
1280
985
1385
1010
1000
1515
1 185
1640
1250
1470
1 150
1585
1225
1455
1080
1560
1 130
1200
1650
1275
1800
1360
1600
1235
1730
1320
1585
1 140
1710
1215
1400
1780
1360
1955
1460
1735
1325
1890
1415
1730
1205
1880
1290
1600
1930
1445
2 135
1560
1860
1405
2025
1505
1845
1260
2005
l;150
1800
2050
1505
2260
1640
1965
1470
2 160
1575
1950
1290
2 130
1426
2000
2 160
1565
24 15
1725
2075
1635
2280
1655
2050
1310
2265
1450
2200
2260
1625
2560
1810
2180
1620
2415
1740
2 165
1350
2400
1500
2500
2380
1700
2720
1910
2320
1680
2580
1820
2305
1410
2530
1580
Current-carrying capacity and import factors
Conductor cross-section Area
Voltage level
66 KV
110 KV
220 KV
Trefoil Laying
Parallel Laying
Trefoil Laying
Parallel Laying
Trefoil Laying
Parallel Laying
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
In Air
Buried
240
485
425
510
445
460
420
505
435
-
-
-
-
300
555
480
585
505
550
475
580
496
-
-
-
-
400
650
550
680
575
640
540
660
570
625
530
645
550
500
750
625
795
660
740
620
790
650
730
605
775
625
630
875
715
925
755
860
705
920
745
835
690
905
735
800
1000
805
1065
850
985
795
1105
850
970
780
1090
835
1000
1130
895
1220
955
1115
885
1205
940
1100
870
1190
925
1200
1240
965
1340
1030
1215
955
1315
1015
1200
935
1305
1005
1400
1335
1025
1455
1105
1305
1015
1425
1085
1290
1005
1400
1065
1600
1420
1080
1555
1170
1390
1070
1520
1150
1370
1035
1505
1130
1800
1490
1120
1645
1220
1450
1110
1605
1190
1420
1090
1590
1180
2000
1565
1165
1745
1275
1530
1155
1695
1250
1500
1130
1665
1215
2200
1640
1210
1840
1330
1605
1200
1785
1330
1580
1175
1740
1235
2500
1750
1270
1970
1410
1710
1260
1910
1445
1695
1235
1840
1370
Assumed 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 bonding
Direct buried ambient temperature is influence on current-carrying capacity
Ambient temp
10
l6
20
26
30
35
40
45
Influence factor
1.07
1.03
1.00
0.96
0.03
0.89
0.84
0.80
soil thermal resistance coefficient influence on current-carrying capacity
Thermal resistance coefficient
0.7
1
1 .2
1 .5
2
2.5
3
.Infinence fautor
1.14
1.00
0.93
0.84
0.74
0.67
0.61
Direct buried depth is influence on current-carrying capacity
Depth of direct buried
500
700
900
1000
1200
1500
Influence factor
1.10
1.05
1 .01
1.00
0.98
0.95
Air temperature's influence on current-carrying capacity
Air temperature
5
l0
l5
20
25
30
35
40
45
50
55
Influence factor
1.24
1.21
1.16
1.13
1.08
1.04
1.00
0.96
0.90
0 .85
0.80
Single circuit parallel laying influence on current-carrying capacity
Laying distance(mm)
D
D+70
200
250
300
350
400
Note:D is cable's overall diameter
Influence factor
0.93
1.00
1.03
1.05
1.07
1.08
1.10
Short Circuit Current Unit:KA/1S
Conductor Cross-section area
Conductor Short circuit current
Copper Conductor
Aluminium Conductor
240
34.3
22.7
300
42.9
28.3
400
57.2
37.8
600
71.5
47.2
630
90.1
59.5
800
114.5
75.6
1000
143.0
94.5
1200
171.7
113.3
1400
200.3
132.2
1600
228.9
151.1
1800
257.5
170.0
2000
286.2
188.9
2200
314.8
207.8
2500
357.7
236.2
Process Flow Chart
Drawing Machine
Equipment Characteristics
1. Non-clip drawing machine with 13 dies and separate driving motors
2. Continuous annealing
3. Inert gases protection
4. Antioxidation material application
5. Continuously dual bobbins spooling
Frame-type Stranded RFS630-84
Technical Characteristics
1. 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 3000mm²
3. Compacting coefficient comes to 0.89
4. Continuously automatic loading/unloading
5. With Max. Line speed of 60m/min
6. Intelligent control
Drum Twist Stranded DTPC3600
Technical Characteristics
1. Milliken conductor stranding into cironlarshape
2. Produce Milliken conductor with cross-sectional area up to atincluding 3000hnm²
3. Taping with constant tension
VCV Production Line
Equipment Characteristics
1. 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 Characteristics
1. Regular gas-exchange
2. Intelligent temperature control
Technical characteristics
1. 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 Line
Equipment Characteristics
1. Welding with double torch, and neat screen
2. Welding various materials such as copper,aiummum and stainless steel
3. Metallic sheath diameter is up to and including 200mm²
4. Online inspection for the welding scam flaw
Technical characteristics
1. With continues wave, free adjustment of the depth and pitch
2. Even thickness of the metal sheath,without any eccentricity,sand hole,blister and transverse crack
3. Outstanding water blocking performance
4. Meeting short-circuit current capacity
Outer Sheath Production Line
Equipment Characteristics
1. Two extruders with diameter of 911 and 1511 running together can realize the extrusion of single layer or double layers with different materials simultaneously
2. With graphite coating equipment
3. Measuring device for the overall diameter
4. Jetting, printing and meter counting equipment
5. Max. Diameter for the pay-off drum and take-up drum is 4200mm
Equipment Advantage
1. Produce outer sheath with cable overall diameter up to and including 200mm
2. Excellent control for outer diameter and eccentricity
Test System
Equipment Characteristics
1. All-metal shielding mom with dimension of 35m x 30m x 20m
2. Series resonant system with max. voltage of 700kV, 35A
3. Tests for resistance, capacitance, and dielectric loss, partial discharge and withstand voltage
4. Max. Load capacitance of 637μf
Package
1. Pack according to national standard or customer' s require-ment;
2. Professional package design, firm and durable,protect the cable effectively.
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