Doesn't look that unusual to me, it comes from my electricity supply region! The emergency phone number is correct. I noticed the 11kV/414V label on a number of substations round here, I've just assumed that the 414V was a misprint at the engravers. Next time I get a chance I'll ask one of the engineers. The single phase voltages I measure on a day to day basis (while loop/rcd testing) are usually just above 240V, sometimes closer to 250V & within normal tolerances.
Re: Spot the peculiarity#137439 07/07/0304:03 PM07/07/0304:03 PM
That reminds me of the temporary lights (for road works) I came upon in Ireland once. I was quite surprised when the red-&-amber phase came on instead of them just going straight from red to green like normal Irish lights, so I assume they were using British equipment.
(It was somewhere up around Leitrim or Cavan, so maybe the local repair crew decided to make a quick dash over the border to "borrow" some lights! )
Why do some old meters in the UK say 230V?
They possibly date back to before the early 1970s and the standardization at a nominal 240V.
Prior to that, the actual declared nominal voltage could vary from one district to another: 220, 230, 240 and 250V were the most common, with correponding 3ph levels of 380, 400, 415, and 440V (the last is actually 433V, but was usually quoted as 440).
Some old districts in the larger towns still had 3-wire DC into the 1960s, so the voltage between "outers" would have been 440 to 500V.
[This message has been edited by pauluk (edited 07-08-2003).]
Re: Spot the peculiarity#137444 07/08/0303:20 PM07/08/0303:20 PM
Talking of perculiarities - why do British traffic [stop] lights go red,red+yellow,green? I have only come across two other places that do and I assumed they bought British equipment viz: Argentina and Iceland.