I never electrically wired a house completely. But I am wondering
when the electrical engineer installs the circuit breaker box.
Where do they shut of the power to the main 2 (120volts) wires coming into the house from the powerlines. I am looking at the big 200Amp circuit breaker at the top of the panel but this just closes and opens the circuit to your house. What happens if you wanted to move the electric circuit breaker box to a different location you still have the main lines that will have current flow thru them if you complete the circuit. Basically when running the cables from the powerline is their a switch on the powerline to turn off power to the main lines so you can move them or extent them in some way?
I am just wondering how the people install the boxes. Do they have to shutdown a street powerline for a few minutes while they hook the ends of the main lines from your house to the powerlines transformer etc.. ??
Note I am not plaining on doing this I am just wondering how they go about it.
And I am also curious about why some houses have one wire running from the powerline and why some have 2 or 3 running from the powerline.
Is the one wire carry both the 120volts = 240 volts???
Because I know in the case of 3 wires we have two 120 volt hot wires and one neutral ground wire coming from the powerlines.
Maybe their are some places that use only step down transformers that step down to 240 and other places where they step it down to 120 volts and add to lines per house? Maybe that's how it is?
Just curious how this works.
You can assume we are in the united states.
when the electrical engineer installs the circuit breaker box.
Where do they shut of the power to the main 2 (120volts) wires coming into the house from the powerlines. I am looking at the big 200Amp circuit breaker at the top of the panel but this just closes and opens the circuit to your house. What happens if you wanted to move the electric circuit breaker box to a different location you still have the main lines that will have current flow thru them if you complete the circuit. Basically when running the cables from the powerline is their a switch on the powerline to turn off power to the main lines so you can move them or extent them in some way?
I am just wondering how the people install the boxes. Do they have to shutdown a street powerline for a few minutes while they hook the ends of the main lines from your house to the powerlines transformer etc.. ??
Note I am not plaining on doing this I am just wondering how they go about it.
And I am also curious about why some houses have one wire running from the powerline and why some have 2 or 3 running from the powerline.
Is the one wire carry both the 120volts = 240 volts???
Because I know in the case of 3 wires we have two 120 volt hot wires and one neutral ground wire coming from the powerlines.
Maybe their are some places that use only step down transformers that step down to 240 and other places where they step it down to 120 volts and add to lines per house? Maybe that's how it is?
Just curious how this works.
You can assume we are in the united states.
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