| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a structure and a method for intermediate joint of solid cables, which prevents an insulating oil from coming out from a joint part when forming an intermediate joint part. <P>SOLUTION: At end parts of the solid cables 1 each having a conductor 10 and a cable oil-impregnated insulating layer 11 impregnated with the insulating oil, each end part of the conductor 10 is exposed from the cable oil-impregnated insulating layer 11 to connect the conductors 10 to each other, and a joint insulating layer 21 is formed by winding an insulating material around the end parts of cable cores 1c and the outer periphery of a conductor joint 20. The insulating material is wound while applying the insulating oil for an applying oil heated to a temperature of the applying oil. The insulating oil for the applying oil has a kinematic viscosity of 20 mm<SP>2</SP>/s or less at the temperature of the applying oil, and is used which has a kinematic viscosity of not less than a half of that of a cable oil insulating oil at 60°C. Winding is facilitated because the kinematic viscosity is low when the applying oil is applied and de-oiling is prevented because the kinematic viscosity is high when the intermediate joint part is formed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
