Method of screening the magnetic field generated by an electrical power transmission line and electrical power transmission line so screened
First Claim
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1. An electrical power transmission line, comprising:
- at least one electrical cable;
a conduit of ferromagnetic material enclosing said at least one cable and comprising a base and a cover; and
electrical contact elements electrically connecting said base and said cover, wherein said electrical contact elements are selected from the group of metal fusion joints and resilient members suitable to penetrate said ferromagnetic material.
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Abstract
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.
36 Citations
31 Claims
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1. An electrical power transmission line, comprising:
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at least one electrical cable; a conduit of ferromagnetic material enclosing said at least one cable and comprising a base and a cover; and electrical contact elements electrically connecting said base and said cover, wherein said electrical contact elements are selected from the group of metal fusion joints and resilient members suitable to penetrate said ferromagnetic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 23)
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19. A method for screening the magnetic field generated by an electrical power transmission line comprising at least one electrical cable, said method comprising the steps of:
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placing said electrical cable in a conduit of ferromagnetic material comprising a base and a cover; coupling said base and said cover with an electrical contact element that penetrates said ferromagnetic material; and providing an electrical connection between said base and said cover having a conductance, per meter of length, of at least 150 Siemens/m. - View Dependent Claims (20, 21, 22, 24, 25, 26, 27, 28, 29)
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30. A method for screening the magnetic field generated by an electrical power transmission line comprising at least one electrical cable, said method comprising the steps of
placing said electrical cable in a conduit of ferromagnetic material comprising a base and a cover; - and
providing an electrical connection between said base and said cover having a conductance, per meter of length, of at least 150 Siemens/m by realizing a metal fusion between said base and said cover.
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31. An electrical power transmission line, comprising:
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at least one electrical cable; a conduit of ferromagnetic material enclosing said at least one cable and comprising a base and a cover, said ferromagnetic material having a maximum relative magnetic permeability greater than 1,000; and electrical contact elements electrically connecting said base and said cover, wherein said electrical contact elements are selected from the group of metal fusion joints and resilient members suitable to penetrate said ferromagnetic material.
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Specification