公开(公告)号：EP1046177A1

公开(公告)日：2000-10-25

申请号：EP98964663.3

申请日：1998-12-22

申请人： ASEA BROWN BOVERI AB

发明人： CARSTENSEN, Peter ,  GUSTAFSSON, Anders ,  FARKAS, Andreas ,  ERICSSON, Anders ,  BOSTRÖM, Jan-Ove ,  GUSTAFSSON, Bill ,  NILSSON, Ulf ,  CAMPUS, Fred

IPC分类号： H01B3/44

CPC分类号： H01B3/441 ,  C08K5/01 ,  C08K5/1345 ,  C08K5/375 ,  C08L23/04

摘要： An insulated DC-cable and method for production of an insulated DC-cable with an insulating system comprising an extruded cross-linked polyethylene based insulation disposed around the conductor. The extruded polyethylene based compound comprises additives such as cross-linking agent, scorch retarding agent and antioxidant. The scorch retarding agent comprises a compound (D), 2,4-diphenyl-4-methyl-pentene-1 and the antioxidant comprises a compound (C), a diester of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionicacid and thiodiglycol. The compounded polyethylene based resin composition is extruded and cross-linked at a temperature and for a period of time sufficient enough to cross link the insulation. The temperature and the period of time upon extrusion and cross-linking are limited so as to substantially suppresss or essentially avoid undesired polar by-products being formed in the cross-linked composition.