Overvoltage protective material for overvoltage protective part and overvoltage protective part

摘要

The overvoltage protective part of this invention the 1st discharge electrode and, has with the overvoltage protective section which was formed 2nd discharge electrode and with of 1st discharge electrode and 2nd discharge electrode. The overvoltage protective section has the character of the insulator usually, but when 1st discharge electrode overvoltage is impressed with 2 and the 2nd discharge electrode, it possesses the character which continues. Furthermore, the overvoltage protective section is the resin and the inorganic compound which possesses insulated and makes the boride metal chemical compound powder mix something which possess insulated. Because the boride metal chemical compound powder it is high fusion point, when is difficult to melt, in addition it melts high temperature becomes, oxidizing, in order to lose conductivity, it can actualize high reliability.