Safety interlock

A charging system, comprising:

• a number of m chargers each adapted for providing electrical energy to charge an electrical vehicle, whereby m is an integer and m≥1,
• a number of n outlet ports each adapted for electrically connecting the electrical vehicle, whereby n is an integer and n≥2, and
• a switchable connection matrix device comprising a number of outlet port switches each adapted for electrically connecting at least one of the m chargers to one of the outlet ports and, if m>1, a number of charger switches each adapted for electrically connecting at least two of the m chargers, whereby
• the switchable connection matrix device is adapted for detecting a short-circuit between at least two outlet ports and/or for generating a fault signal if the short-circuit between at least two outlet ports is detected, and
• the outlet port switches and the charger switches are each controllable by a switching signal and whereby the short-circuit is detected and/or the fault signal is generated based on the switching signals.