Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time. Therefore. the traditional means of limitation of short duration commutation surges are not effective in this case. https://www.diegojavierfares.com/amazing-find-Carhartt-WIP-Pocket-T-Shirt-Green-super-save/