... weight and high strength, anti-ageing, aesthetically pleasing appearance, corrosion-resistance, easily maintain, ,insulating capacity, environmental friendliness, UV Resistant Inhibited .A ... voltage along laminas(in transformer oil, 90±2oC) ≥35KV 5. Dielectric constant ≤5.5 6. Dielectric loss factor ≤0.04 7. Insulation resistance ...