Types of Electrical Wires and Cables

Difference Between Wire vs. Cable

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While the terms wire and cable are often used interchangeably, technically a wire is one electrical conductor and a cable is multiple conductors, or a group of wires, encased in sheathing.  

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Electric wires are typically made of aluminum or copper. They are either bare or insulated and typically covered in a thin layer of thermoplastic. If they have a thermoplastic sheath, then the thermoplastic is colored to indicate whether the wire is a neutral, ground or hot wire in your electrical installation. We discuss wire colors in a section of this guide. 

Cables contain at least a neutral wire, ground wire and hot wire that are twisted or bonded together. Depending on its purpose, the cable may contain more wires. The wires in a cable are insulated in their own color-coded layer of thermoplastic. The group of wires is then encased in an outer sheath to make up the single cable. 

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