Development of flexible joint for 500 kV Al-sheathed OF cable

Author

Komaba, T. ; Kanai, K. ; Yoshida, S. ; Shigetoshi, I. ; Amano, K.

Author_Institution

Tokyo Electric Power Co. Inc., Japan

Volume

7

Issue

4

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1706

Lastpage

1712

Abstract

The authors have developed a flexible dimensionally flush joint for 500 kV aluminum-sheathed oil-filled cables with handling characteristics similar to the cable itself so that it may be readily drawn into ducts in the same way as the cable without suffering damage. The process and characteristics are outlined. This joint is intended for use at intermediate points on long bridges or tunnels where local assembly and installation of conventional joints would be difficult. In developing the joint, various novel techniques have been used, including the flexible flush jointing of segmental conductors, the flexible jointing of paper insulation by a combination of wrapping-back and stepping methods, and on-site aluminum sheath corrugating and sealing methods

Keywords

aluminium; cable insulation; cable jointing; cable sheathing; insulating oils; power cables; 500 kV; Al; aluminum-sheathed oil-filled cables; bridges; flexible flush jointing; flexible joint; paper insulation; segmental conductors; sheath corrugating; sheath sealing; tunnels; Aluminum; Assembly; Bridge circuits; Cable TV; Cable insulation; Cable shielding; Conductors; Oil filled cables; Oil insulation; Welding;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.156969

Filename

156969