Back to results
US 2001/0042635 A1Published application
Solid cable, manufacturing method thereof, and transmission line therewith
AssigneeSumitomo Electric Industries, Ltd.
InventorsMAMORU KONDO, RYOSUKE HATA, HIROSHI TAKIGAWA, JUN YORITA, TAKAHIRO HORIKAWA, YUICHI ASHIBE, MORIHIRO SEKI
Life of this patent
Estimating the term…
Abstract
A solid cable provided with an insulation layer on the outer circumference of a conductor, and impregnated with insulating oil in this insulation layer. Medium-viscosity insulating oil the viscosity of which is between not less than 10 cst and less than 500 cst at 60° C. is used as the insulating oil.
Claims17
A solid cable comprising a conductor and an insulation layer provided on the outer circumference of a conductor and impregnated with insulating oil;
- wherein said insulating oil is a medium-viscosity insulating oil having viscosity which is set between not less than 10 cst (centistokes) and less than 500 cst at 60° C.
A method of manufacturing a solid cable comprising the steps of:
- impregnating an insulation layer with low-viscosity insulating oil the viscosity of which is not more than 10 centistokes (cst) at a room temperature;
- deoiling said insulation layer to remove said low-viscosity insulating oil;
- and
- impregnating said insulation layer with medium-viscosity insulating oil the viscosity of which is between not less than 10 centistokes (cst) and less than 500 centistokes (cst) at 60° C.
1 more element
Dependencies are inferred from the claim text.