4.6Residual current monitoring
In accordance with IEC 61851-1, DC residual currents are to be expected in charging stations for electric vehicles, which can impair the function of the residual current protection. Therefore, in accordance with the standard, one of the following measures should be implemented:
–Use of a type B residual current device
–Use of a type A residual current device. In addition, use of equipment to ensure that the power supply is safely disconnected in the event of a DC residual current greater than 6 mA.
The Variable „Product Area“ ist nicht definiert charging controllers are designed to support the implementation of both of these measures.