Title: Method and device for insulating covering of cables

Abstract: The proposed method for insulating the covering of cables resides in high-frequency heating of the cable conductor wrapped with tapes from polymer materials, such as polyimidepolytetrafluoroethylene films, in a transverse magnetic field over a period of time required to reach the material softening temperature and maintaining this temperature until the polymer material is baked, which is done in a longitudinal magnetic field. The device for carrying out the above method comprises an induction loop heater and a cylindrical induction heater arranged coaxially therewith. The invention can most advantageously be used to provide for quality insulation of cables up to 70 sq. mm in cross section.

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Inventors: Gantts, Vitaly L.
Krupenin, Nikolai V.
Meschanov, Gennady I.
Peshkov, Izyaslav B.

Application Number: 800614
Filing Date: 1977-05-26
Publication_date: 1980-01-29
Assignee:
Primary Class(es): 156/53 156/272.4, 219/605
Other Classes:
US Patent Ref:

2371459	Mar, 1945	Mittelmann	219/10.
3572286	Mar, 1971	Forney	427/45.
3960629	Jun, 1976	Goldsworthy	156/272.

Other Refs:
Primary Examiner: Goolkasian, John T.
Assistant Examiner: Thrower, William H.
Attorney: Lackenbach, Lilling & Siegel