In alt.engineering.electrical Ian Jackson wrote:
| In message , Thomas Tornblom
| writes
|"Michael A. Terrell" writes:
|
| Thomas Tornblom wrote:
|
| "Michael A. Terrell" writes:
|
| wrote:
|
| In sci.electronics.repair jakdedert wrote:
| I'm a little confused about a 230 volt circuit. In what part of the
| world does the utility supply 230v?
|
| Continental Europe used to have 220 volts (before that it was 127
| volts in
| some places), the UK used to have 240 volts. Nowadays, the common voltage
| is 230 volts -10% +6%.
|
|
| In other words, nothing has changed. They just wrote sloppier specs.
|
| It has changed, the voltage is now close to 230V, at least in Sweden.
|
| I guess the sloppiness was specified to allow a gradual switch from
| 220/240 to 230 and still be within spec.
|
| Do the math. The specifications allow continued use of the old
| standard n each country.
|
|If you read my comment you will see that I agree that the new spec
|covers the old voltages. I do not agree with your statement that
|"nothing has changed". We had 220V before and we now have 230V, so the
|actual voltage has definitely changed.
|
| In the UK, we had 240V. We now have err..... 240V.
| There may be places where it really has been reduced to 230V, but I've
| never been anywhere where I had occasion to measure the mains voltage,
| and didn't get around 240V - certainly not sufficiently different for
| you to notice the difference.

What I have heard is that teh distribution system is not changing, but new
service installations will be supplied with 230V unless 240V is specifically
requested ... after some point in time that may not have come, yet. What
I heard is they don't expect to have all of UK changed over for many decades,
and maybe even a century or so.

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