NDLI: Development of coaxial integrated return conductor DC extruded insulation cable and factory joint

Content Provider	IEEE Xplore Digital Library
Author	Yamanaka, T. Kimura, T. Murata, Y. Odajima, S.
Copyright Year	2002
Description	Author affiliation: Electr. Power Dev. Co. Ltd., Tokyo, Japan (Yamanaka, T.; Kimura, T.)
Abstract	In this paper development of 120 kV coaxial integrated return conductor DC submarine cable and factory joint (FJ) is described. For coaxial type submarine cable, it is necessary to design a new construction and manufacturing process for the FJ. The FJ of submarine cable requires sufficient mechanical and electrical performance. The FJ for single core type DC extruded cable has already been developed for DC 250 kV and 500 kV. These manufacturing processes are able to be applied to the jointing of the main conductor and the formation of the main insulation. For the jointing of the return conductor, the lap weld method was applied, and for the formation of the return insulation, the polyethylene (PE) tape wrapping mold method was applied. 120 kV coaxial type DC submarine cable with extruded insulation was then manufactured. After manufacturing, the cable and FJ were subjected to the following tests successively: (1) tensile bending test; (2) external water pressure withstand test; and (3) electrical withstand test. Test conditions of the tensile bending test and external water test were determined on the assumption that maximum water depth would be 350 m. Finally, it was verified that the cable and FJ have sufficient mechanical and electrical performance for submarine cable lines.
Starting Page	1284
Ending Page	1289
File Size	460538
Page Count	6
File Format	PDF
ISBN	0780375254
DOI	10.1109/TDC.2002.1177663
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-06
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Underwater cables Coaxial cables Manufacturing processes Polyethylene Welding Conductors Cable insulation Production facilities Wrapping Testing
Content Type	Text
Resource Type	Article

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