HV 110kV XLPE Insulated Power Cable High Voltage STA For Power Distribution
Brand Name:Zhongdong
Certification:ISO9001, CE, CCC, RoHS, VDE, cUL, CSA
Minimum Order Quantity:To be negotiated
Delivery Time:7-30 days based on different qty
Payment Terms:,L/C,T/T
Place of Origin:Hebei，China
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Product Details
HV 110kV XLPE Insulated Power Cable High Voltage STA For Power Distribution
Application
110kV cables are high-voltage power transmission systems insulated with cross-linked polyethylene (XLPE). Their primary applications include:
- Urban Power Grid Transmission and Distribution:Deployed in urban core areas to transmit electricity over medium-to-long distances, particularly in densely populated modern cities with high power demand；
- Connecting Power Plants and Substations:Serve as backbone transmission lines between power generation facilities (e.g., thermal, hydroelectric, and renewable energy plants) and 110kV substations, enabling efficient large-capacity energy transfer.
- Integration with Small Substations:Used as feeder cables in 35kV–110kV substations to interconnect substations with local distribution networks.
- Reducing Energy Loss:Engineered with copper/aluminum conductors (cross-sectional area: 50–2000 mm²) and XLPE insulation to minimize transmission losses over long distances, improving grid efficiency.
Construction
1.Conductor
2.Conductor screen
3.XLPE insulation
4.Insulation screen
5.Semiconducting tape
6.Copper wire screen
7.Aluminum laminated tape
8.PE or PVC outer sheath (Graphite coating or extruded semiconducting)
Description
- Voltage Rating (Uo/U)(Um) : 64/110 kV
- Temperature Rating: Short Circuit Temperature: +250°C
- Operating Temperature: -30°C to 90°C
- Minimum Installation Temperature: -20°C
Tecnical Data
Parameter category | Parameter item | parameter values |
configuration parameter | electric conductor | Material: copper core (cross-section range: 630~1600mm²) |
External diameter of conductor | 30.0~56.5mm (The larger the section, the increasing the outer diameter) | |
insulating course | Material: Cross-linked polyethylene (XLPE), thickness of 16.5±0.5mm | |
Conductor shielding layer | Thickness of 1.2mm (semi-conductive material) | |
insulation screen | Thickness of 1.0mm (semi-conductive material) | |
metallic sheath | Wrinkle aluminum sheath (2.0±0.2mm) (double galvanized steel strip, 0.5~0.8mm) | |
oversheath | Material: flame retardant polyvinyl chloride (PVC) or polyethylene (PE), thickness of 4.5±0.2mm | |
Electrical parameters | 20℃ conductor DC resistance | 0.0754~0.009 Ω / km (the larger the section, the lower the resistance) |
90℃ conductor AC resistance | 0.097~0.0142Ω/km | |
capacity value | 134-282 p F/m (increased with increasing cross-section) | |
Power frequency pressure test | 64 / 110kV (factory test) | |
Local discharge performance | At 5pC(1.5U₀ under-voltage) | |
Mechanical and laying parameters | minimum bending radius | 12 x cable outer diameter (armor layer requirement) |
Allow working temperature | Long-term: 90℃, short circuit (within 5 seconds): 250℃ | |
Laying ambient temperature | ≥0℃ | |
Vehicle flow reference | Flow rate in single return air | Section 630mm²: 1010A; section 1600mm²: 1690A (ambient temperature 40℃, soil thermal resistance 1.0m · ℃ / W) |
Load flow rate of directly buried laying | Section 630mm²: about 800A; section 1600mm²: about 1300A (buried depth 1m, ground temperature 35℃) |
HV 110kV XLPE Insulated Power Cable High Voltage STA For Power Distribution
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