I am creating a database that lists all available voltages by region, state or providence and city. I have all the low voltage but need assistance in finding and verifying the medium and high voltage. Interested in AC only. An example of what I am looking for is
United Kingdom:
Frequency = 50Hz +/- 1%
LV: 230/400V official (still 240/415V in practical terms)
MV: 11, 33kV (plus some old 6.6kV in a few areas)
HV: 66, 132, 275, 400kV
This example I found on this site provided by pauluk it's exactly what I am looking for on all countries.
Thanks in advance for your assistance
