Field grading layer

• Main Authors: FURUHEIM, KNUT MAGNE, SONERUD, BJÖRN
• Format: Patent
• Language: English; French; German
• Published: 09.07.2014
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYES; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; INSULATORS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES

Method of applying a field grading layer to a power cable is disclosed. The method comprises - compounding a polymer composition comprising a polymer matrix material, at least one non-linear conductive organic filler, and at least one crosslinking agent, - extruding the compounded polymer composition into a crosslinkable field grading tape, - winding the crosslinkable field grading tape onto a section of power cable in need of field grading - curing and crosslinking the crosslinkable tape to obtain a field grading layer.