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When multiple charging stations are installed in a single area, the cables can be routed in
several different ways. The figure above shows an example where the first charging station
serves as a starting point for other stations. Power cables and any type of communication
cables are routed to this first station, which is then connected to the next station with a
separate power cable and a separate communication cable. Each additional station is then
connected in the same way with its preceding station. The first station which serves as a
starting point can also use GPRS communication.
5.2 Connection of charging station to the grid
The power and communication cables are routed through the foundation after the casing of the
charging station is installed. Care must be taken not to damage the equipment inside the
charging station.
According to the dimensions of the power cable, the contracting entity chooses the proper
configuration of the charging station with the appropriate terminals. A 3- or 5-wire power cable
is used for the connection, based on the type of connection. Standard terminals enable
connection of cables of up to 35 mm2 diameter.
The configuration of the charging station depends also on the type of grid connection. The
charging station is usually connected to an existing installation. In such case, the supply wires,
neutral wire and grounding wire are brought to the station's terminals as shown below:
