Joining structure of different kinds of conductors, joining method of different kinds of conductors, and joint of power cables
AssigneeLs Cable & System Ltd.
InventorsJeong Ik Kim, Sangyum Kim, Hyun Su Kim
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Abstract
Disclosed are a joining structure of different kinds of conductors, a joining method of different kinds of conductors, and a joint of power cables capable of improving joining reliability of a junction of the different kinds of conductors.
Claims20
A joining structure of different kinds of conductors formed by joining a first conductor constituting a first power cable and a second conductor constituting a second power cable to each other, wherein:
- the first conductor comprises a plurality of conductor wires, an end side surface of the first conductor being processed such that a space factor of the end side surface is equal to or higher than a predetermined level,
- a melting point of the first conductor is higher than a melting point of the second conductor, and
- the end side surface of the first conductor and an end side surface of the second conductor are joined to each other by welding.
A joining method of different kinds of conductors to join a first conductor constituting a first power cable and a second conductor constituting a second power cable to each other, the joining method comprising:
- processing an end side surface of the first conductor, the first conductor comprising stranded wires, such that a space factor of the end side surface is equal to or higher than a predetermined level (a side surface processing step);
- mounting the first conductor and the second conductor to a welding jig such that an end of the first conductor is exposed by a predetermined length and an end of the second conductor, the second conductor having a lower melting point than the first conductor, is exposed by a predetermined length (a conductor mounting step);
- and
- joining the end side surface of the first conductor and an end side surface of the second conductor to each other by welding (a conductor joining step).
Dependencies are inferred from the claim text.