Product Description
64/110kV HV cables fall into the category of EHV XLPE insulated power cables.
Application
As a core product for110kV EHV power transmission networks, they replace overhead lines of the same voltage class for underground/tunnel laying in urban power grids, industrial parks and cross-regional transmission projects. Featuring large transmission capacity, excellent insulation, strong anti-environmental interference and small floor space, they are widely used in overhead-to-underground transformation of main power grids, cross-sea/river transmission and power grid construction in urban core areas.
Applicable Standard
IEC 60840, IEC 62067
Construction
1.Conductor: Circular Stranded Compacted Conductor(≤800mm2)，Milliken Conductor(＞800mm2)
2.Conductor Screen:Super Smooth Semi-Conductive Compound
3.Insulation: Super Clean Cross Linked Polyethylene(XLPE)
4.Insulation Screen:Super Smooth Semi-Conductive Compound
5.Binder Tape:Semi-Conductive Tape
6.Metal Sheath: Corrugated Aluminum Sheath/Lead Sheath/Aluminum Laminated Tape
7.Anti-Corrosive Layer:Cable Asphalt
8.Outer Sheath: Polyvinyl Chloride(PVC) or Polyethylene(PE)
9.Conductive Layer: Graphite
10.Optional: Copper Wire Screen,Metal Wire Screen
Technical Parameters
| Rated voltage:64/110kV | ||||||||||||
| YJLW03:CU/XLPE/CAS/HDPE YJLWO2:CU/XLPE/CAS/PVC YJLLW03:AL/XLPE/CAS/HDPE YJLLWO2:AL/XLPE/CAS/PVC; | ||||||||||||
| Nominal area of conductor |
mm² | 240 | 300 | 400 | 500 | 630 | 800 | 800* | 1000 | 1200 | 1400 | 1600 |
| Thickness of Insulation |
mm | 19.0 | 18.5 | 17.5 | 17.0 | 16.5 | 16.0 | 16.0 | 16.0 | 16.0 | 16.0 | 16.0 |
| Thickness of aluminum tape |
mm | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.3 | 2.3 | 2.3 | 2.3 |
| Thickness of outer sheath |
mm | 4.0 | 4.0 | 4.0 | 4.0 | 4.5 | 4.5 | 4.5 | 4.5 | 5.0 | 5.0 | 5.0 |
| Approx.outer diameter |
mm | 89.8 | 90.9 | 91.5 | 93.7 | 97.2 | 100.4 | 102.0 | 106.8 | 112.2 | 115.2 | 118.5 |
| Approx.weight (kg/km) |
Cu | 7295 | 7900 | 8620 | 9731 | 11316 | 13109 | 13339 | 15811 | 17808 | 19861 | 21894 |
| Al | 5868 | 6108 | 6372 | 6808 | 7490 | 8191 | 8421 | 9624 | 10689 | 11517 | 12372 | |
| Max.DC resistance of conductor at 20℃(Ω/km) |
Cu | 0.0754 | 0.0601 | 0.0470 | 0.0366 | 0.0283 | 0.0221 | 0.0221 | 0.0176 | 0.0151 | 0.0129 | 0.0113 |
| Al | 0.1250 | 0.1000 | 0.0778 | 0.0605 | 0.0469 | 0.0367 | 0.0367 | 0.0291 | 0.0247 | 0.0212 | 0.0186 | |
| Current ratings(A) | ||||||||||||
| Soil ∴ |
Cu | 539 | 609 | 693 | 789 | 897 | 1006 | 1048 | 1174 | 1265 | 1358 | 1440 |
| Air ∴ |
Cu | 657 | 752 | 868 | 1003 | 1159 | 1322 | 1380 | 1576 | 1718 | 1866 | 2000 |
| Soil … |
Cu | 624 | 707 | 807 | 919 | 1043 | 1164 | 1211 | 1341 | 1433 | 1525 | 1600 |
| Air … |
Cu | 670 | 767 | 886 | 1022 | 1180 | 1340 | 1398 | 1583 | 1717 | 1852 | 1971 |
