Re: Liability & responsibility of electrician?

Jul 06, 2009 4 Replies



>"Geoffrey S. Mendels>>
>> Doug Miller wrote:
>> > Yes, I'm afraid you are missing the point. Different locations, even though
>> > attached to the same local grid, may have different supply voltages because
>> > they are receiving those supplies through different transformers.
>>
>> I got that. What is wrong is that the person who wrote that originally (was
>> it you?) used that to explain why a regular house outlet could be 220 volts
>> on one side of town, and 240 volts on another, both connected to the same
>> "grid".
>>
>> There's going to be some variation, but not that much.
>
>
> Nonsense! Do you believe that the entire town is powered by a single
>substation, and that there are no I/R losses? It IS possible that an
>older part of a town hasn't been upgraded in a long time, and that the
>additional load pulls the line voltage down at the end of a MV feed
>while another site is closer to a substation and has higher voltage
>available to the building.

The stipulation was "one side" and "the other side", which sounds to me like the windings of a single center tapped transformer, so NO, there is NO way that there could be that much of a variance between the two, dipshit.

You're an idiot. READ his post. He was talking about the two sides of HIS service, idiot.

You're an idiot.

Read either side of your house service at ANY time and the two voltages will be right on each other with perhaps a volt or two variance between them. Maybe when the power company puts too many houses on the same transformer, you could see a variance that is greater if the other houses are all loaded up on one side, but the likelihood id very low.

And reading them one right after the other IS "at the same time" for this purpose, ya friggin dope!

Of course taking a reading a day later could result in a differing voltage.

You have about as much common sense as a freshly laid turd.

StickThatInYourPipeAndSmokeIt wrote: (acting like the d-s he accuses others of)

So you think an entire town is fed from not just one substation, but one (coutem 1) SINGLE phase transformer?? get real. [You don't even generally get, two 240 v sources from a singe ph XF anyway, but lets ignore that] But even still, you you can have that much variation, especially if measured at two different times, with different loading, different MV source voltage, and different connection impedance.

jk

Difference between the 2 sides of a residential (split phase, or whatever you want to call the American 115/230 volt system) is NOT uncommon, and is virtually always caused bu a bad neutral connection somewhere.

Which HIS

Ahhh no answer to that, so just an A-H attack. How clever....

OHHH so now we are going from never, to "low likelyhood"?

I used to live in one of those locations. It had a for s*it utility neutral.

Ahh.... yet an other A-H attack...... Your ability to have polite discourse is short of amazing, well well short of it.

jk

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