Quote:
Originally Posted by Autobahnschleicher
I'm quite surprised how terrible the electric grid is over there.
With 110V and 30A, you've only got 3,3kVA for the whole house.
A normal power outlet here has 3,5kVA (maximum, not sustained).
As for 240V, single phase systems, for that kind of power you'd probably want a higher voltage/more phases as that would require rather thick cables.
What where they thinking with this whole split-phase 110/220Vsystem over there?
3-phase 220/380V is more efficient and requires less copper for a given power requirement as well as giving you the option of running 3-phase motors directly from the grid.
Plus let's not forget that you can run RCDs from the breaker box.
/rant
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Of course I haven't checked every house in Mexico, but that's the only power standard I've seen several dozen of them.
And that 30A is max, not sustained. Sustained is 28A, or about 2.6kW continuous. FOR THE WHOLE HOUSE of course.
It's also common to see two (or more) households using the same fuse box (no breakers down there). It's also common for people to steal electricity by throwing hooked cables up onto the street cables or by placing jumpers behind the electric meter.
I've also known of more electrical fires in Mexico than in the USA.