H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 9/02 (2006.01)
Patent
CA 2746439
A DC cable for high voltages has at least an inner conductor (8) surrounded by an insulating layer (10) configured to take the voltage to be taken between the conductor and the surroundings of the cable. The insulating layer is formed by a plurality of superimposed film-like layers (12) of insulating material each having isolated areas of metal (13) on top thereof. The metal areas of consecutive such film-like layers are at least partially overlapping each other as seen in the radial direction of the cable so as to create a large number of small capacitors in said insulating layer of the cable.
L'invention concerne un câble à courant continu (CC) pour hautes tensions, qui a au moins un conducteur interne (8) enveloppé d'une couche isolante (10) conçue pour prendre la tension à prendre entre le conducteur et ce qui enveloppe le câble. La couche isolante est formée de plusieurs couches de type film superposées (12) de matériau isolant, chacune présentant sur la partie supérieure des zones isolées métalliques. Ces zones métalliques de couches de type film successives se chevauchent au moins partiellement comme on le voit dans la direction radiale du câble de façon à créer un grand nombre de petits condensateurs dans ladite couche isolante du câble.
Asplund Gunnar
Jacobson Bjoern
Abb Technology Ag
Marks & Clerk
LandOfFree
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