Introduction - If you have any usage issues, please Google them yourself
X, Y capacitors are all safety regulation capacitors, and the X between the lines is X capacitors. The FireWire and the ground are the Y capacitors. They are used in the power filter and play the role of power filter, which plays the role of common mode and differential mode interference.
The capacitor is used for such occasions, the capacitor failure, will not cause electric shock, do not endanger the safety of.
Permissible peak pulse voltage overvoltage level in application of safety grade of safety gauge