On 5/28/24 14:23, rtnetz...@windstream.net wrote:
----- Original Message -----
From: "Paul M Foster" <pa...@quillandmouse.com>
I've never see a 3 phase in a house.
Quite some years ago my father inquired about getting
3 phase power to his house to power a rather husky lathe.
The answers were distributed between "impossible"
and "prohibitively expensive".
This is economics for the power company. They may have all 3 phases
available at the substation, but running all 3 phases to every pole in
the village simply is not done. They balance loads by feeding phase A up
this street, phase B up a different street, and phase C up yet another
street, so the quoted costs will usually include the cost of
constructing ways to get all 3 phases to your pole. The distance might
be a mile or more. For one customer the cost WILL be phenomenal. You'll
be $100k ahead to just buy a vfd big enough to run that lathe. That may
require a bigger can on your pole and 750mcm drops from there to your
house, but that is still only 2% of the cost to bring in all three
phases to your pole.
Its been my experience that the normal electrician does NOT understand 3
phase power at all. I've had to go behind them fixing their mistakes
quite a few times. One such instance threatened to burn down the tv
station every time we turned on the studio lights to do a newscast. What
I found when I opened the covers to the breakers was enough to discuss
the perps genealogy in flowery terms, at length. I am not an
electrician, I'm a CET. A much rarer bird.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
