Title :
Towards a better knowledge of insulating polymers under stress
Author :
Mayoux, C. ; Martinez-Vega, J.J. ; Guastavino, J. ; Laurent, C.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
fDate :
3/1/2001 12:00:00 AM
Abstract :
This contribution to a better understanding of insulating materials which are evolving in the domain of electrical engineering, concerns two polymers: a low density polyethylene free of additives, and an amorphous and biaxially oriented poly(ethylene-2,6 dicarboxylate). Through conductivity, dielectric relaxation and luminescence measurements the importance is shown of the role played by the structure of the material on its electrical properties. Also, the evolution of these properties under electrical stress or environmental conditions, such as electrical discharges, are studied
Keywords :
Poole-Frenkel effect; dielectric losses; dielectric relaxation; electrical conductivity; electroluminescence; partial discharges; polyethylene insulation; polymer films; polymer structure; space charge; PD activity; Poole-Frenkel effect; ageing; alpha relaxation; amorphous biaxially oriented poly(ethylene-2,6 dicarboxylate); beta relaxation; breakdown; dielectric relaxation; electrical conductivity; electrical discharges; electrical stress; electroluminescence; environmental conditions; insulating polymers under stress; loss tangent; low density polyethylene; permittivity; polymer structure; space charge dynamics; Additives; Amorphous materials; Conducting materials; Dielectric materials; Dielectrics and electrical insulation; Electrical engineering; Plastic insulation; Polyethylene; Polymers; Stress;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
