High-voltage cable flexible joint provided with non-linear shielding layers

2012 
The utility model relates to a high-voltage cable flexible joint, in particular to a high-voltage cable flexible joint provided with non-linear shielding layers, aiming at solving the problems that an internal semiconductive shielding layer, an external semiconductive shielding layer and an insulating layer of the high-voltage cable flexible joint with the existing structure are poorer in surface smoothness and roundness, so that the local electric field intensity is increased, electrical tree is caused, and the joint is shorter in service life and even damaged. The high-voltage cable flexible joint comprises an internal semiconductive shielding layer, a crosslinked polyethylene insulating layer, an external semiconductive shielding layer, a semiconductive waterproof layer, a metal sheath and two cables, wherein the outer side of an integrally connected wire core is sequentially coated with the internal semiconductive shielding layer, the crosslinked polyethylene insulating layer, the external semiconductive shielding layer, the semiconductive waterproof layer and the metal sheath from inside to outside; and the high-voltage cable flexible joint also comprises the internal non-linear shielding layer and the external non-linear shielding layer, wherein the internal non-linear shielding layer is coated between the internal semiconductive shielding layer and the crosslinked polyethylene insulating layer in an extruding way. The high-voltage cable flexible joint is used for connecting the cables in the high voltage field.
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