Originally Posted by djk
The UK seems to have the other extreme in some urban areas though, where you're close to the transformer..


In some cases the utilities have had to cope with extra loading which has caused low voltages at the extremities of the LV lines during peak load hours, so they've altered the taps to compensate while still keeping within the upper tolerance limit.

It's not unusual for the line voltage to sit around 245V during low-load times in a lot of areas, and I've heard of places where 250V is more the normal no load voltage.

Where I am it's rare for the line to go above about 242 or 243V during quiet times, and it seldom ever drops below 230V even during peak hours (faults excepted).