Which type of wire consists of two or more separately insulated wires twisted together?

Twisted pair wire is composed of two or more insulated conductors twisted together in a helical manner. This design helps to reduce electromagnetic interference and crosstalk between the wires, making it especially useful in telecommunications and data networking applications. The twisting of the wire pairs allows for the cancellation of noise and improved signal integrity.

Multiconductor wire refers to cables that contain multiple conductors, but they may or may not be twisted together. While multiconductor wire can be designed similarly to twisted pair in some cases, the specific definition of twisted pair wire distinctly identifies it by the twisting technique used.

Single conductor wire features only one wire insulated by itself, lacking the characteristics associated with multiple wires or the twisting structure. Shielded wire is designed to protect the inner conductors from electromagnetic interference, typically using a conductive layer, though it does not specifically refer to a pair structure.