Oil-filled electric cable with alternate layers of plastic...

Details Oil-filled electric cable with alternate layers of plastic... Oil-filled electric cable with alternate layers of plastic...

H - Electricity

01

B

337/16, 26/59

H01B 9/06 (2006.01) H01B 7/14 (2006.01) H01B 13/06 (2006.01) H01B 13/30 (2006.01)

Patent

CA 1231400

ABSTRACT OF THE DISCLOSURE An oil-filled electric cable in which the solid insulation is formed, at least in part, by separately applied, alternate layers of cellulose paper tape and of film tapes made of a plastic. Prior to application of the tapes around the cable conductor, the moisture content of the paper tape is selected and the swelling of the plastic tape by the oil after application is adjusted, if necessary, such as by immersing the plastic tape in the oil prior to application, so that the swelling of the plastic tape by the oil in the formed cable is offset by the shrinkage of the paper tape during drying of the cable. Also, apparatus for pre-swelling the plastic tape.

472174

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