Electrical wire is a conductor that is used to transmit electrical energy. It is typically made of copper or aluminum, and is covered in a protective insulation to prevent electrical current from escaping and causing electrical shock or fires.
There are several different types of electrical wire available, each designed for specific applications. Some of the most common types of electrical wire include:
- Solid wire: Solid wire is made of a single, solid strand of conductor material. It is typically used for internal wiring in homes and buildings, as well as for wiring in small appliances and electronic devices.
- Stranded wire: Stranded wire is made of multiple small strands of conductor material twisted together. It is more flexible than solid wire, making it ideal for use in applications where the wire needs to be bent or twisted.
- Flexible wire: Flexible wire is made of multiple strands of conductor material that are tightly twisted together and then covered in a flexible insulation. It is often used in applications where the wire needs to be bent or flexed frequently, such as in machine tools and robotics.
- Building wire: Building wire is designed for use in residential and commercial construction. It typically has a thicker insulation than other types of wire to protect against damage from heat, moisture, and physical impact.
- THHN wire: THHN wire is a popular type of building wire. It is made from a combination of thermoplastic and heat-resistant rubber, which allows it to withstand high temperatures. It is also coated with a nylon insulation for added durability.
- THWN wire: THWN wire is another type of building wire. It is made of thermoplastic and heat-resistant rubber, and is coated with a nylon insulation. It is used for both indoor and outdoor applications, and is rated for both dry and wet conditions.
The American Wire Gauge (AWG) is the standard measurement used to indicate the diameter of electrical wire. The lower the gauge number, the thicker the wire. Thicker wires have a lower resistance and can carry more current than thinner wires.
All electrical wire must meet safety standards and be installed according to the National Electric Code (NEC) and the local building codes. Any installation must be done by a qualified electrician to ensure safety and compliance with the regulations.