John Rumm wrote:

there are some specific requirements that apply to vehicle
charging points over and above those normally associated with outside
sockets. There is a dedicated section in the regs (722) that covers
these installations. There are also a series of BS Docs (starting BS EN
61851) that cover EV charging.

You will also need a different type of RCD (a type "A" or "B" rather
than the more typical type "AC") to protect the circuit feeding the
charge point.

The neighbour's unit seems to consist of a DIN rail mounted RCBO,
contactor and control unit.

How come they aren't required to be metal-clad as they're effectively a
1-way CU?