Power cable system having different conductor connecting part , and power cable connection method having different conductors
AssigneeLs Cable & System Ltd.
InventorsJeong Ik KIM, Sung Jin IM, Je Hyun LEE, Sung Ho HONG
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Abstract
The present disclosure relates to a power cable system with a different conductor connecting part that secures sufficient bending strength to prevent damage thereto and ensure durability even when both a tensile force and bending are applied to connect power cables with different types of conductors, and a method of connecting power cables with different types of conductors.
Claims23
A power cable system, which includes a first power cable with a first conductor, a second power cable with a second conductor, and a cable connection structure for connecting the first power cable and the second power cable, wherein
- the first conductor of the first power cable comprises a plurality of wires,
- the second conductor of the second power cable comprises a plurality of wires and is formed of a material different from a material of the first conductor,
- a melting point of the first conductor is higher than that of the second conductor,
- the cable connection structure comprises a different conductor connecting part formed by connecting the first conductor and the second conductor,
- the different conductor connecting part comprises a volume rate increase region of the first conductor and a volume rate increase region of the second conductor, and is formed by forming the volume rate increase region of the first conductor by preprocessing the first conductor to increase a volume rate by a certain length from a connecting surface (cs1) of the first conductor, forming the volume rate increase region of the second conductor by preprocessing the second conductor to reduce a volume rate by a certain length from a connecting surface (cs2) of the second conductor, and connecting the first conductor and the second conductor by resistance welding.
10-29. (canceled)
A power cable connection method of connecting a first power cable with a first conductor including a plurality of circular wires and a second power cable with a second conductor including a plurality of circular wires and formed of a material different from a material of the first conductor, the power cable connection method comprising:
- preprocessing the first conductor by a certain length from a connecting surface (cs1) of the first conductor to increase a volume rate to a predetermined level or more;
- preprocessing the second conductor by a certain length from a connecting surface (cs2) of the second conductor to reduce a volume rate to a predetermined level or more;
- and
- performing resistance welding to bond the connecting surface (cs1) of the first conductor and the connecting surface (cs2) of the second conductor to form a different conductor connecting part.
31-33. (canceled)
35-36. (canceled)
A power cable system, which includes a first power cable with a first conductor, a second power cable with a second conductor, and a cable connection structure for connecting the first power cable and the second power cable, wherein the first conductor of the first power cable comprises a plurality of wires,
- the second conductor of the second power cable comprises a plurality of wires and is formed of a material different from a material of the first conductor,
- a melting point of the first conductor is higher than that of the second conductor,
- the cable connection structure comprises a different conductor connecting part formed by connecting the first conductor and the second conductor,
- the different conductor connecting part comprises a volume rate increase region of the first conductor and a volume rate increase region of the second conductor with respect to a connecting surface (cs), and
- bending strength of the different conductor connecting part is greater than that of the second conductor.
Dependencies are inferred from the claim text.