Which Size Wire Is Best For House Wiring

By | December 18, 2022



When it comes to wiring a home, the size of the wire matters. The size of the wire will determine how much electricity can flow through it and how safe it is to use. Choosing the wrong size wire for your house wiring can be dangerous and cause potential fire hazards. So, which size wire is best for house wiring?

When it comes to house wiring, there are several types and sizes of wire that can be used. The type of wire and its size depends on the amount of electricity that needs to be carried through it, as well as the type of application. Generally speaking, the most common type of wire used in residential wiring is 14 AWG, or American Wire Gauge. This type of wire is rated for up to 15 amps and is suitable for general-purpose applications. It is also the minimum size required for most electrical circuits.

For more heavy-duty applications, such as those involving large appliances, air conditioning units, and other high-load devices, 12 AWG or 10 AWG wire is recommended. This type of wire is rated for up to 20 amps and is suitable for larger circuits. If the wiring is going to be exposed to the elements, such as outside walls and ceilings, then it is best to use outdoor-rated wire, such as 12 AWG THWN (Thermoplastic High-Heat-Wire Nylon). This type of wire is designed to withstand extreme temperatures and moisture.

Finally, if the wiring is going to be running through the walls or ceilings, then it is best to use Non-Metallic Sheathed Cable (NM Cable). This type of wire is generally rated for up to 20 amps and is suitable for use in dry locations, such as walls and ceilings. It is also easier to install than other types of wire, since it only requires one hole to be drilled instead of two.

Ultimately, the size of wire you choose for your house wiring project should depend on the amount of electricity that needs to be carried and the type of application. Always make sure to follow local building codes when selecting the type and size of wire you need. If you have any questions, it is best to consult a professional electrician who can help ensure your wiring project is done safely and correctly.


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