Charging system, comprising a number of m chargers (C1, C2, C3) each adapted for providing electrical energy to charge an electrical vehicle (E1, E2, E3, E4), whereby m is an integer and m ≥ 1, a number of n outlet ports (P1, P2, P3, P4) each adapted for electrically connecting the electrical vehicle (E1, E2, E3, E4), whereby n is an integer and n ≥ 2, and a switchable connection matrix device (M) comprising a number of outlet port switches (O1, O2, O3, O4) each adapted for electrically connecting at least one of the m chargers (C1, C2, C3) to one of the outlet ports (P1, P2, P3, P4) and, if m > 1, a number of charger switches (S1, S2) each adapted for electrically connecting at least two of the m chargers (C1, C2, C3) in parallel, whereby the switchable connection matrix device (M) is adapted for detecting a short-circuit between at least two outlet ports (P1, P2, P3, P4) and/or for generating a fault signal if the short-circuit between at least two outlet ports (P1, P2, P3, P4) is detected, and the outlet port switches (O1, O2, O3, O4) and the charger switches (S1, S2) 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, characterised by the switchable connection matrix device (M) comprises a number of electrical switch state check devices (D) each adapted for determining the switching status of one of the outlet port switches (O1, O2, O3, O4) and charger switches (S1, S2) and whereby the short-circuit is detected and/or the fault signal is generated based on the determined switching status. a number of m chargers (C1, C2, C3) each adapted for providing electrical energy to charge an electrical vehicle (E1, E2, E3, E4), whereby m is an integer and m ≥ 1, a number of n outlet ports (P1, P2, P3, P4) each adapted for electrically connecting the electrical vehicle (E1, E2, E3, E4), whereby n is an integer and n ≥ 2, and a switchable connection matrix device (M) comprising a number of outlet port switches (O1, O2, O3, O4) each adapted for electrically connecting at least one of the m chargers (C1, C2, C3) to one of the outlet ports (P1, P2, P3, P4) and, if m > 1, a number of charger switches (S1, S2) each adapted for electrically connecting at least two of the m chargers (C1, C2, C3) in parallel, whereby the switchable connection matrix device (M) is adapted for detecting a short-circuit between at least two outlet ports (P1, P2, P3, P4) and/or for generating a fault signal if the short-circuit between at least two outlet ports (P1, P2, P3, P4) is detected, and the outlet port switches (O1, O2, O3, O4) and the charger switches (S1, S2) 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, characterised by the switchable connection matrix device (M) comprises a number of electrical switch state check devices (D) each adapted for determining the switching status of one of the outlet port switches (O1, O2, O3, O4) and charger switches (S1, S2) and whereby the short-circuit is detected and/or the fault signal is generated based on the determined switching status. <EOS>