What Kinds Of Wires Are In My Home?

Copper: The most common type of wire used in residential electrical systems is copper. Copper is an excellent conductor of electricity. It's also very durable, making it a popular choice for home wiring. Plus it's easy to work with. That makes it residential electricians top choice, and a great option for DIY projects.

Aluminum: Another type of wire used in residential electrical systems is aluminum. It isn't as efficient at conducting electricity as copper and can be more susceptible to heat. Aluminum wire also needs special connectors and can be more challenging to work with. Older homes with aluminum wiring should be checked for safety before starting a DIY project.

Non-Metallic Electrical Cable: This type of cable has an outer sheathing that bundles several wires together. It's called "Non-Metallic" because the sheathing isn't metal of any kind. It often has three parts: the outer sheathing, the insulation, and individual wires. It's often used for wiring outlets, switches, and other fixtures. Like copper, NM cable is easy to work with, often inexpensive, and a popular choice for DIY projects. Romex is a common brand of "Non-Metallic" cable.

UF wire: This is a type of underground feeder (UF) wire. It's often used for wiring outdoor lighting and other outdoor electrical devices. UF wire resists moisture and can stay in the ground for an extended period of time. That can make it a good choice for use in damp or wet environments.