Abstract
Because a trouble ratio of the electric discharge line disconnection by the abnormal spark is high, and there is much exchange number of times of the electric discharge line, among trouble to affect the electrostatic precipitator, we have a hard time for maintenance. By repair work of 2006, dust collection unit did it as old JH specifications and changed only charging with electricity department in the electric discharge board method because an electric discharge board method was developed as a solution, and it was made specifications. Therefore as a result of having inspected comparison with the electric discharge line method and the electric discharge board method by calculating electric discharge line disconnection trouble rate that I measure the dust collection efficiency of the existing electric discharge line method and the electric discharge board method after the repair this time, it is availability to repair the electric discharge line method in the electric discharge board method.
