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Advisory
ProductUsage:
This product is suitable for 110KV power transmission system. A total oftransmission of electrical energy, with online temperature monitoring system.Facilitate the power sector on the transmission line operation monitoring andmaintenance, widely used in the power sector.
Implementationstandards:
110kV Product implementation GB / T11017 "XLPE insulated powercables with rated voltage of 110kV and their accessories" and IEC60840"XLPE insulated power cables with rated voltage of more than 30kV (Um =36kV) to 150kV (Um = 170kV)
Usefeatures:
1、Maximumrated temperature
Long-term maximum allowable operatingconductor temperature: 90 °C,Maximum operating temperature under short-timeoverload: 130°C,Maximum operating temperature under short circuit (shortcircuit duration 5 s): 250 °C
2、Requirements:
Cable laying shall not be restrictedby drop height; the ambient temperature for laying shall not be lower than 0 °C,and if the ambient temperature is lower than 0 °C, the cable shall bepre-heated.
2.1 Minimum bending radius of cable
During cablelaying: 20D0; and Permanentinstallation: 15D0.
Note: D0 is measured outerdiameter of cable.
2.2 Maximum allowable axial traction for cableinstallation, T (radial side pressure at bend not being considered)
Conductor: T=K×Conductor section (kg)
Aluminum sheath:T=K×Aluminum sheath section(kg)
Where, the coefficient K=7kg/mm2for copper conductor and 4kg/mm2 for aluminum conductor and 2kg/mm2 for aluminum sheath.
2.3 Maximum allowable side pressure when cable is bent, P
P=T/R≤500(kg/m), where T is axialtraction, and R is bending radius.
