English: When inserted into the socket, the Schuko plug covers the socket cavity(1) and establishes protective-earth connection through the earth clips(2) before the live and neutral pins(3) establish contact, thereby preventing users from touching connected pins. Therefore, the Schuko system does not require partially insulated pins, as they are used in the europlug, as well as the British and Australian plugs. A pair of non-conductive guiding notches(4) on the left and right side provides extra stability, enabling the safe use of large and heavy plugs (e.g. with built-in transformers or timers).