The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2021
Filed:
Aug. 19, 2014
Borealis Ag, Vienna, AT;
Peter Sunnegårdh, Kallinge, SE;
Marc Jeroense, Karlskrona, SE;
Anders Gustafsson, Karlskrona, SE;
Pär Lilja, Ronneby, SE;
Per-Ola Hagstrand, Stenungsund, SE;
Villgot Englund, Gothenburg, SE;
Annika Smedberg, Myggenäs, SE;
Ulf Nilsson, Ödsmål, SE;
Johan Andersson, Hisings backa, SE;
Virginie Eriksson, Stenungsund, SE;
Jonas Jungqvist, Stenungsund, SE;
Jonny Brun, Nödinge, SE;
Borealis AG, Vienna, AT;
Abstract
A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage Uis 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*Uduring 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein Uis 450 kV, or 525 kV, or more.