Prysmian Cavi E Sistemi Energia S.r.l.

Enrico Borghi

Paolo Maioli

Fabrizio Donazzi

Sergio Belli

Sergio Spreafico

A method for shielding the magnetic field generated by an electrical power transmission line and an electrical power transmission line so shielded. The electrical power transmission line has at least one electrical cable and at least one shielding element made of ferromagnetic material arranged in a radially outer position with respect to the at least one cable which shielding element has a base and a cover. The line also has a supporting element coupled to at least the base of the shielding element. In particular, the ferromagnetic material of the shielding element is selected from grain oriented silicon steel, preferably containing a silicon content between about 1% and about 5%, non-grain oriented silicon steel, Permalloy&#xe8; and Supermalloy&#xe8;.

Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded

An electrical power transmission line having at least one electrical cable, a conduit of ferromagnetic material enclosing the electrical cable and having a base and a cover and electrical contact elements for electrically connecting the base and the cover, wherein the electrical contact elements are metal fusion joints or metal resilient members suitable to pierce the ferromagnetic material.

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Milan, Italy

Enrico Borghi