Electrical cable with self-repairing protection
First Claim
1. Cable comprising a conductor and at least one coating layer, characterized in that the said cable comprises an inner layer comprising a self-repairing material having a predetermined cohesiveness and a controlled flowability.
3 Assignments
0 Petitions
Accused Products
Abstract
A cable, in particular a cable for electric power transmission or distribution, having an inner layer comprising a self-repairing material with a predetermined cohesiveness and a controlled flowability, so as to re-establish, upon creation of a discontinuity in at least one of the cable coating layers, the continuity in the coating. The discontinuity in the coating can be caused by mechanical abuses of various types, for example accidental impact with cutting tools. Infiltration of moisture and generation of leakage currents, leading to a rapid corrosion of the conductor, are in this way avoided.
0 Citations
54 Claims
- 1. Cable comprising a conductor and at least one coating layer, characterized in that the said cable comprises an inner layer comprising a self-repairing material having a predetermined cohesiveness and a controlled flowability.
- 50. Method for imparting to a cable comprising a conductor and at least one coating layer a capacity of self-repairing the coating layer, the said method comprising providing the cable with an inner layer comprising a material having the capacity, upon creation of a discontinuity in the coating layer, of re-establishing the continuity in the coating layer in a reversible manner.
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52. Process for manufacturing a cable having a layer of self-repairing material, comprising the following steps:
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(i) depositing the self-repairing material, maintained in a fluid state, on a cable core;
(ii) forming the said layer of self-repairing material so as to obtain a uniform layer of a predetermined thickness.
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54. Process for manufacturing a cable having a layer of self-repairing material, in which the self-repairing material is extruded onto the cable core.
Specification