6. Preparing the installation
The first step is to prepare the physical installation of the EV Wall as described in this chapter.
Installation prerequisites
• Calculate the existing electrical load to find the maximum operating current for the charging
station installation. The Smappee EV Wall is equipped with 1 connector (socket or fixed cable)
which needs to be powered.
• Obtain all necessary permits from the relevant local authority.
• Refer to local wiring regulations to select the conductor sizes and use only copper conductors.
• Make sure that the installation area of the charging station is adequate for usability and
ventilation purposes.
• Use the correct tools and provide sufficient material resources and protection measures.
Power supply
• The appropriate wire gauge of the supply cable depends on the power rating and distance
between the meter cabinet and the charging station. The voltage drop must not exceed 5%. It
is advisable to have a maximum voltage drop of 3 %.
• The maximum wire gauge that can be fitted is 6 mm² in case of flexible conductors or 10 mm²
when solid conductors are used.
• The power supply trajectory from the circuit breaker panel up to the EV Wall Business
charging station must be protected against short-circuiting and over-current with B or C circuit
breakers (or otherwise in compliance with local standards and regulations)
• A charging station connector must always be installed on a dedicated power circuit.
• When the power supply and the charging station are part of a TN-S system, the station must
be grounded via the main distributor.
• Route the power supply cables to the position where the charging station will be installed
together with an Ethernet cable for the internet connection (if applicable).
• Make sure that there is at least 30 cm cable available at the location of the EV Wall to be able
to connect it easily internally.
• Local regulations may be applicable and can vary depending upon the region or country.
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