Method of making an oil-filled electric cable with alternate lay

Details Method of making an oil-filled electric cable with alternate lay Method of making an oil-filled electric cable with alternate lay

1986-02-24

1987-11-03

Czaja, Donald E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Making electrical conductors of indefinite length

156 83, 156 86, 174 25R, H01B 1332

Patent

active

047041706

ABSTRACT:
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.

REFERENCES:
patent: 2709197 (1955-05-01), Davey
patent: 3194871 (1965-07-01), Garner et al.
patent: 3749812 (1973-07-01), Reynolds et al.
patent: 3775549 (1973-11-01), Matsuda et al.
patent: 3844860 (1974-10-01), Edwards
patent: 4237334 (1980-12-01), Kojma et al.
patent: 4571357 (1986-02-01), Hata et al.
patent: 4602121 (1986-07-01), Priaroggia

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