| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for preventing a grounding fault in an OF (Oil-Filled) cable using an appropriate number of grounding fault prevention sheets, and an OF cable connection part provided with ground fault prevention sheets having a mechanism for leading a ground wire, a cross-bond wire, an oil tub, and the like from the inside to the outside of a sheet or a mechanism for discharging leaking oil or water or the like that have entered a sheet from the inside to the outside of the sheet. <P>SOLUTION: The OF cable connection part 12 is so constituted that: its outer circumferential surface is encircled with a trough 1 so that a pressure release space is formed; a roll sheet 2 made of aramid fiber is wrapped around the outer circumferential surface of the trough 1; and the overall circumference of the roll sheet 2 is covered with a grounding fault prevention sheet 5 made of aramid fiber. The OF cable connection part has a slit for pulling out a ground wire and the like or a mechanism for discharging oil. Numbers of roll sheets 2 and grounding fault prevention sheets 5 to be used are determined based on a predetermined expression. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
