〈 WARNING 〉
Rule no. 1
Avoid contact with energized electrical circuits. Please don’t make fun of this rule if you already know this (and you probably already know if you are reading these lines) and remember that if something bad occurs – you probably won’t have a second chance. That’s not funny.
Rule no. 2
Treat all electrical devices as if they are live or energized. You never know.
Rule no. 3
Disconnect the power source before servicing or repairing electrical equipment.
The only way to be sure.
Rule no. 4
Use only tools and equipment with non-conducting handles when working on electrical devices.