The Effect of Temperature on the Pulsed Electrical Strength of Polyethylene Terephthalate Films

Abstract

The effect of temperature on the impulse electrical strength of a polyethylene terephthalate (PET) film with a thickness of $2.5 \mu\mathrm{m}$ was studied. Statistical analysis of the obtained results was carried out. It was found that the probability distribution of the breakdown strength of the film under study corresponds to the Weibull law. It was shown that the value of the most probable breakdown voltage of a PET film in the range from 293 to 363 K does not depend on temperature.