Many houses in the United States come with two hot wires and one neutral coming into them, whereas the supply is 240/120 volts. The actual voltages is a bit lower, around 230/115 volts. This is what we call the single phased power.
The alternating current is the power coming into your home and this type of current lets the electricity be transported over long distances.
House wiring may be dangerous and you do need to read and apply some electrical safety tips. Never work on your house wiring with the power on and use lock out tag out procedures so that no circuits are turned on during your working.
Get a non-contact voltage tester and check the box first. It may be that more than one circuit runs though the same box. Even though you may have turned one of them off, it’s possible that more hot wires still remain in the box. Play it safe and always double check.
The “Main Service Panel” contains the circuit breakers of fuses for the electrical power in your home and you want to turn it off during a flood or other risky situations. The panel should present labels for various items (washer, dryer) so you know for what each circuit breaker is assigned to.
Don’t forget about the circuit breakers as they trip the amount of current if it exceeds a certain level. The new circuit breakers may also identify shock hazards and arcing conditions.
Choose wisely the electrical wires, as it’s wise to use the right size wire for some electrical devices.
House wiring isn’t difficult, but you do need to keep in mind that it may be dangerous which is why it’s essential to follow the safety rules at all time.