What makes a 6v wiring system??

The wire running to my street is 30,000 volts and the transformer steps it down to 220 volts single phase.
is that a pole mounted transformer? i'd love to see a picture of that. here we run 34.5kv to substations that drop it down to 4800v, or directly to transformers on the consumers property, that then drop it down to what ever voltage they need.