Long term evaluation of self-bonding magnet wire for hermetic motor system

At first, we have had long term evaluation of self-bonding magnet wire (SBW5) related to R-22 refrigerant resistant properties for hermetic field since 1981 E/EIC. Secondly, we also have tried the reliability evaluation tests of hermetic motor system applied with SBW5. From these results, we could get a conclusion that reliability of our SBW5 and the hermetic motor system is more excellent than conventional system impregnated with varnish.