Hello, Today I happened across voltage optimisation for buildings. British mains voltage used to be 250v. It is now standardised across europe to 220v =/- 10%. I think the British mains now runs at about 240v. "Voltage optimisation" is where you put a box on your mains circuit to drop the voltage…

Voltage optimisation?

mowcius November 8, 2010, 7:45pm 6

UK mains is 230v, was 240...

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