Product Description
Cables with cross-linked polyethylene (XLPE) insulation rated at 5kV and below are suitable for fixed installation on power transmission and distribution lines with an AC frequency of 50Hz and a rated voltage of 35kV and below. Compared to polyvinyl chloride (PVC) insulated power cables, XLPE power cables not only offer excellent electrical performance, mechanical properties, resistance to thermal aging, environmental stress resistance, and chemical corrosion resistance but also feature a simple structure, lightweight, no restrictions on laying drop, and a high long-term working temperature (90°C).
Manufacturing Standards
GB/T12706.1-2002 to GB/T12706.3-2002 "Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1kV (Um=1.2 kV) to 35kV (Um=40.5 kV)", IEC60502-1997.
Key Features
Maximum Operating Temperature: The permissible long-term maximum operating temperature of the cable conductor is 90℃.
Short Circuit Temperature: During a short circuit (lasting no more than 5 seconds), the maximum temperature of the cable conductor should not exceed 250℃.
Installation Temperature: The ambient temperature during cable laying should not be lower than 0℃.
Minimum Bending Radius:
For three-core cables: not less than 15 times the cable diameter.
For single-core cables: not less than 20 times the cable diameter.
Rated Power-Frequency Voltage (U0/U): 0.6/1kV to 26/35kV.
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