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US 11,450,455 B2Granted
Electrical cable for vertical applications
AssigneePrysmian S.p.A.
InventorsLuca Giorgio Maria De Rai, Rosalba Orazi, Marco Tedeschi
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AssigneePrysmian S.p.A.
InventorsLuca Giorgio Maria De Rai, Rosalba Orazi, Marco Tedeschi
Estimating the term…
An electrical cable for vertical applications includes a core having a length L, a sheath surrounding the core and extending through the whole length L and a reinforcing jacket surrounding the sheath and in direct contact therewith. The reinforcing jacket is made of concentric layers including a first layer longitudinally extending from a first cable end (the proximal or upper cable end, in use) towards a second cable end (the distal or lower cable end, in use) substantially along the whole length L. The reinforcing jacket also includes at least one further layer longitudinally extending from the first cable end towards the second cable end for a length shorter than L. At least one layer of the reinforcing jacket is a circumferentially closed metal tube.
An electrical cable comprising:
A process for manufacturing an electric cable comprising a reinforcing jacket as outermost layer, the reinforcing jacket comprising concentric metal layers, wherein the process comprises forming at least one layer around a cable core starting from a continuous metallic tape with longitudinal edges, the tape being longitudinally folded and the edges welded to provide the at least one layer in form of a circumferentially closed tube.
An electrical cable comprises:
Dependencies are inferred from the claim text.