We use streetlights at 230 - 240 Volts in New Zealand.
They are connected in strings via a contactor and 32 A mcb.
Substation control via lightcell and loadshedding relay drives contactor, string of 10 to 15 lights 250 Watts etc.
Cable runs in new areas are 500 to 1000 metres with 10 mm² neutral screened cable, feeding about 15 poles ( In 15 Ampères )
In older areas of town 2.5 or 4 mm² cables were run up to 600 metres in length feeding 6 or 7 lamps HPS 85 Watts. In 3 to 4 Ampères.
