Korontada wax soo saarka xoolaha ee korontadu waxay ka badan tahay 8000V, laakiin hadda wax soo saarka ayaa ka yar 5mA/S, sidaa awgeed sooshaarka xooluhu dhib kuma laha xoolaha. laakiin xoolaha korontadu waxay neefka siin doonaan shoog koronto, taasoo laga yaabo inay cabsi geliso neefka. sidaa darteed soo iibinta xoolaha ee korontadu waa sharci darro dalalka qaarkood.