RimWorld removing Zzzt. event

Inside of the rimworld save file (http://rimworldwiki.com/wiki/Save_file)

The Save files are stored in users AppData folders: C:\Users\%username%\AppData\LocalLow\Ludeon Studios\RimWorld by Ludeon Studios\Saves

Shortcut:
windows button + R -> the Run dialog will appear
type %appdata% and press enter.
go to LocalLow --> Ludeon Studios
Note, as of at least Alpha 16, the directory Steam Cloud will create is C:\Users\%username%\AppData\LocalLow\Ludeon Studios\RimWorld which is not detected by the game. Unknown if this a bug at this point.

Look for:

   </parts>
         </scenario>

And before the </parts> (a line up) and after the most recent </li> (insert a new line) insert the code for disabling a short circuit:

    <li Class="ScenPart_DisableIncident">
        <def>DisableIncident</def>
        <incident>ShortCircuit</incident>
    </li>

Save this and reload.