公开(公告)号：US20160322129A1

公开(公告)日：2016-11-03

申请号：US15106011

申请日：2014-08-19

Applicant: ABB TECHNOLOGY LTD

Inventor： Peter Sunnegårdh ,  Marc Jeroense ,  Anders Gustafsson ,  Pär Lilja ,  Per-Ola Hagstrand ,  Villgot Englund ,  Annika Smedberg ,  Ulf Nilsson ,  Johan Andersson ,  Virginie Eriksson ,  Jonas Jungqvist ,  Jonny Brun

IPC: H01B9/02 ,  H01B3/44 ,  H01B13/24

CPC classification number: H01B9/027 ,  H01B3/441 ,  H01B13/24

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 U0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U0 during 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*U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450 kV, or 525 kV, or more.

Abstract translation: 传输电缆包括沿着纵向轴线延伸的导体或一束导体，其被具有挤出绝缘材料的绝缘层周向地覆盖，由此传输电缆通过CigréTB496中规定的电气测试，由此额定电压 U0为450kV以上。 型式试验包括在负极性的10至15个周期内对电力电缆进行1.85×U0的直流电压，然后在1.85×U0的直流电压下以正极性进行10至15个周期的极性反转，随后是 在正极性期间的至少4至10天期间额外的2至5个循环，并且其中U0为450kV或525kV或更高。