公开(公告)号：CA2803142A1

公开(公告)日：2011-12-29

申请号：CA2803142

申请日：2011-06-21

Applicant: ABB RESEARCH LTD

Inventor： BJOERLUND ANDERS ,  HILLBORG HENRIK ,  SAHLEN FREDRIK

IPC: H01B3/10 ,  H01B3/00 ,  H01B7/02

Abstract: An electrical conductor provided with an electrical insulation system surrounding the conductor 1, the insulation comprises a first insulation layer 2 surrounding the conductor and a second insulation layer 3 surrounding the first insulation layer 2. The second insulation layer 3 comprises a second polymer and a second filler in the form of chromium oxide (Cr2O3), iron oxide (Fe2O3), or a mixture of chromium oxide and iron oxide, wherein the first insulation layer 2 comprises a first polymer and a first filler comprising dispersed nanoparticles.