公开(公告)号：DE602007008595D1

公开(公告)日：2010-09-30

申请号：DE602007008595

申请日：2007-12-27

Applicant: ABB RESEARCH LTD

Inventor： RONGSHENG LIU ,  HJORTSTAM OLOF ,  JAKSTS ALBERT ,  PETTERSSON LEIF A

IPC: H01B3/20 ,  H01B3/52

公开(公告)号：SE0901493L

公开(公告)日：2009-12-02

申请号：SE0901493

申请日：2009-11-26

Applicant: ABB RESEARCH LTD

Inventor： RONGSHENG LIU

公开(公告)号：AT478425T

公开(公告)日：2010-09-15

申请号：AT07124090

申请日：2007-12-27

Applicant: ABB RESEARCH LTD

Inventor： RONGSHENG LIU ,  HJORTSTAM OLOF ,  JAKSTS ALBERT ,  PETTERSSON LEIF A

IPC: H01B3/20 ,  H01B3/52

Abstract: According to the invention is defined an electric insulation material (1) for an electric device comprising one or several electrical conductors and an electric insulation material arranged around the conductor or between the conductors, and which insulation material is impregnated with a dielectric insulation liquid. The electric insulation material comprises a main layer (2) that is provided with a surface layer (3) that has a dielectric constant that is lower than the dielectric constant of the main layer.