Hi Annemarie I have seen that video, as I am very active in youtube as well , watching and making video's.
That shack they live in has a long overhead line. The supply is single phase 220 Volts 16 Amperes. They take power from before the diazed fuses or mcb on that old meter panel. There is a shot of the meter nameplate in one of their video's. Rating 5 - 17 Amps. They have also some crazy capacitor blow up video's too.
