Back to results
US 6,806,418 B2Granted
Method of screening the magnetic field generated by an electrical power transmission line, and electrical power transmission line
AssigneePirelli Cavi e Sistemi S.p.A.
InventorsFabrizio Donazzi, Paolo Maioli
Life of this patent
Estimating the term…
Abstract
A method for screening the magnetic field generated by an electrical power transmission line having at least one electrical cable. The cables may be inserted into a conduit having at least one layer of non-grain-oriented ferromagnetic material, having a magnetic curve with a maximum value of relative magnetic permeability (μmax).
Claims34
An electrical power transmission line comprising:
- a conduit comprising at least one layer of a ferromagnetic material;
- and
- at least one electrical cable inside said conduit, said ferromagnetic material being of the non-grain-oriented type and having a magnetic curve having a maximum value of relative magnetic permeability (μmax) corresponding to a magnetic field value (Hμmax) lower than 1000 A/m.
A method for screening the magnetic field generated by an electrical power transmission line comprising at least one electrical cable, comprising the step of:
- inserting said at least one electrical cable in a conduit comprising at least one layer of a ferromagnetic material,
- said ferromagnetic material being non-grain-oriented and having a magnetic curve with a maximum value of relative magnetic permeability (μmax) corresponding to a magnetic field value (Hμmax) lower than 1000 A/m.
Dependencies are inferred from the claim text.