Before revision: In power distribution, low voltage (LV) is defined as voltages under 1 kilovolt (KV), medium voltage (MV) is defined as voltages from 1 KV to 35 KV or as 1 to 75 KV, high voltage (HV) is defined as voltages from above 35 to 230 KV, and extra high voltage (EHV) is defined as voltages above 245 URL This is a definition that has changed over time and can change depending on the URL Primary distribution Primary distribution voltages range from 4 kV to 35 kV phase-to-phase (2.4 kV to 20 kV phase-to-neutral) Only large consumers are fed directly from distribution voltages; most utility customers are connected to a transformer, which reduces the distribution voltage to the low voltage "utilization voltage", "supply voltage" or "mains voltage" used by lighting and interior wiring systems.
After revision: country and URL For example ultra high voltage (UHV) can be defined as AC voltages of or over 1000 KV and DC voltages of or over 750In power distribution, low voltage (LV) is defined as voltages under 1 kilovolt (KV), medium voltage (MV) is defined as voltages from 1 KV to 35 KV or as 1 to 75 KV, high voltage (HV) is defined as voltages from above 35 to 230 KV, and extra high voltage (EHV) is defined as voltages above 245 URL This is a definition that has changed over time and can change depending on the URL Primary distribution Primary distribution voltages range from 4 kV to 35 kV phase-to-phase (2.4 kV to 20 kV phase-to-neutral) Only large consumers are fed directly from distribution voltages; most utility customers are connected to a transformer, which reduces the distribution voltage to the low voltage "utilization voltage", "supply voltage" or "mains voltage" used by lighting and interior wiring systems.