In all my higher physics textbooks, the U.K mains voltage is quoted as being 230V. However, I had always thought that it was 240V. Who is correct?
2007-12-31 06:15:51 · 12 answers · asked by robzr6 1 in Science & Mathematics ➔ Physics
Originally, the UK mains voltage supply was specified at 240V RMS +/-6%
Some while ago, the specifications were changed (230V +10%, -6%) to allow harmonisation across Europe.
The idea of the new tolerances was to allow the upper bound of 240V and the lower bound of 220V. It's a fudge and we all know it but it's probably one of the more sensible and pragmatic bits of standardisation that we've seen in the E.U.
2007-12-31 06:24:24 · answer #1 · answered by Nightworks 7 · 1⤊ 0⤋
Uk Mains Voltage
2016-10-02 11:57:50 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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RE:
UK mains voltage discrepancy?
In all my higher physics textbooks, the U.K mains voltage is quoted as being 230V. However, I had always thought that it was 240V. Who is correct?
2015-08-16 14:57:11 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Actually everybody up to now is wrong. The voltage in the UK varies between 220 & 250 volts depending on the time of day and demand and is not constant. However is is commonly reffered to as 240 Volts. And for Lou K's information, its not the voltage that kills you, its the current, so 110 volts is just as dangerous as 240 ..
2016-03-13 23:48:15 · answer #4 · answered by ? 4 · 0⤊ 0⤋
240v... well it would be if I pay my electric bill !
2007-12-31 07:35:02 · answer #5 · answered by inskinonbike 3 · 0⤊ 1⤋
its a voltage range...most things in the home run at 230v....but 240v is at the sockets....if you look at a kettle it runs 230v-240v 50-60Hz....
2007-12-31 06:32:49 · answer #6 · answered by Tiggy want's a bit..... 4 · 2⤊ 1⤋
It's NOMINALLY 230v.
http://www.dti.gov.uk/energy/reliability/quality-continuity-supply/index.html
2007-12-31 06:27:02 · answer #7 · answered by Pauline 7 · 4⤊ 0⤋
Think 230V is about right nowadays. Seems to vary a bit from house to house when I test it. Am a boiler engineer not a qualified electrician who will probably know better, but would think they are allowed to supply within a certain range.
2007-12-31 06:25:07 · answer #8 · answered by Anonymous · 2⤊ 1⤋
It has been standardised as 230v now.
Couldn't find an official reference but here is an excerpt from vintage radio. net
UK mains is now 230V +10% -10%. That is 207V to 253V. The change from 240 was only a rework of tolerances as part of a harmonisation exercise across Europe. The 220V countries did a similar exercise. In practice the voltage will only change if a new distribution transformer is installed.
2007-12-31 06:24:23 · answer #9 · answered by Anonymous · 4⤊ 0⤋
240 or 110 with a transformer
2007-12-31 06:21:35 · answer #10 · answered by Anonymous · 0⤊ 6⤋