1. NKT HV Cables, Technology Consulting, SE-721 78 Västerås, Sweden
2. Department of Fibre and Polymer Technology, Polymeric Materials Division, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
3. FSCN Research Centre, Mid Sweden University, 85170 Sundsvall, Sweden