To make defective units clear, glass units are created so that an overvoltage causes a puncture arc through the glass as an alternative of a flashover. Nonetheless the mechanical strength of the unit is unchanged, so the insulator string stays...
Its exceptional style capabilities a 1/8″ ding on the skirt and a different thin 3/8″ slice at the skirt area. This, combined with its rarity, tends to make it a favourite among collectors. Having familiar with the physical anatomy of glass...