That's just being flippant, 250V±200% will be adequateActually if we consider further we could decide to nominate the "Official World Voltage of Single Phase as 1000v +/- 100%" in the hope of making almost everyone happy
Interesting Regulation of Yesteryear
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Oh OK then .That's just being flippant, 250V±200% will be adequate
Trust me to exagerate the need .
Anyway if we conspire to adjust the nominal voltages to include anything from the smallest battery (cell) up to a figure exceeding the voltages of any mains appliance , I will be happy (In Theory!)
Yeaahh let's include tesla coils
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And a Faraday cage to go with themYeaahh let's include tesla coils
Named after someone named Michael but not sure what his last name was.And a Faraday cage to go with them
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Was it Nikola?
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It's quite a coincidence that a man called faraday invented a farady cage
A nice "Fudge" of notation of nominal declared voltage!
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The permissible supply voltage used to range from 225.6 to 254.4. Now it is 216.2 to 253.0.
There has to be a nominal value in the range to use for calculations.
That nominal value used to be 240, now it is 230.
I really, really, do not see what the issue is.
There has to be a nominal value in the range to use for calculations.
That nominal value used to be 240, now it is 230.
I really, really, do not see what the issue is.
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What is the issue or not
Those numbers always seemed out of whack to me
My assumption always was they were a get out of jail free card for the DSOs( correct term?) rightly or wrongly
Those numbers always seemed out of whack to me
My assumption always was they were a get out of jail free card for the DSOs( correct term?) rightly or wrongly
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Some people seem to be agitated by the change in the permissible voltage range and the change in the nominal value.
I really, really, do not understand why.
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In reality, the voltage didn't really change all that much.
In my entire career, I never had anything outside the low end of the scales, the lowest being high 220s.
I did have a couple exceed the top limit.
Attending faults, I've had a few floating neutrals on DNO supplies resulting in readings of 400V+ on 230V single phase domestic supplies.
In my entire career, I never had anything outside the low end of the scales, the lowest being high 220s.
I did have a couple exceed the top limit.
Attending faults, I've had a few floating neutrals on DNO supplies resulting in readings of 400V+ on 230V single phase domestic supplies.
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I can recall voltages down to maybe 200 -210 can't remember exactly
That would be on bad single phase domestic
supplies .
Also loss of neutral in installation 3 phase distribution circuits causing equipment failure and same with external pen failure
That would be on bad single phase domestic
supplies .
Also loss of neutral in installation 3 phase distribution circuits causing equipment failure and same with external pen failure
In my local area I have found the majority to be 239 to 245 most of the time at test in populated areas , which most are around here.
Less populated areas varied a bit more.
This area was firmly TNS biased but newer properties TNC-S and lots if not all of the TNS ones are considered to be TNC-S like to some degree at least.
Lost N quite rare but not unknown and the results witnessed.
Less populated areas varied a bit more.
This area was firmly TNS biased but newer properties TNC-S and lots if not all of the TNS ones are considered to be TNC-S like to some degree at least.
Lost N quite rare but not unknown and the results witnessed.
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