A composite cable is a single cable construction that contains two or more different types or sizes of wire or cable within one unified jacket.
Composite cables are engineered to streamline complex wiring systems by combining multiple conductor types into one assembly. These cables may include combinations such as power, control, data, video, or audio conductors, each designed to perform a specific function while sharing a common protective jacket. By integrating various signal and power transmission paths into a single cable, composite designs help reduce bulk, simplify routing, and enhance performance consistency across connected systems.
In commercial and industrial environments, composite cables are often used in systems where multiple signals must operate in parallel, such as in building automation, access control, audiovisual (AV) integration, and security applications. For example, a composite cable may combine coaxial video lines with power and control conductors for surveillance systems or integrate fiber optic strands with copper pairs for data and communication networks. This multi-function design helps maintain signal integrity by properly shielding or isolating conductors with different electrical characteristics, preventing interference and ensuring reliable performance across long runs.
Composite cables are available in a variety of configurations depending on system requirements, such as the inclusion of shielded and unshielded pairs, different conductor gauges, or hybrid materials that support both analog and digital transmission. Their design flexibility makes them particularly valuable in environments requiring organized, durable, and efficient wiring systems that can handle multiple communication or power functions simultaneously.
Composite cable constructions and materials are often regulated under UL (Underwriters Laboratories) and NEC (National Electrical Code) guidelines, which define requirements for insulation, shielding, fire ratings, and voltage handling. The TIA (Telecommunications Industry Association) and IEEE (Institute of Electrical and Electronics Engineers) may also provide relevant standards for data and communication performance.
The development of composite cables was driven by the need for more efficient wiring systems as industrial automation, AV integration, and communication networks became more complex. Combining multiple conductor types within one cable allowed manufacturers to reduce installation time, improve system organization, and ensure consistent performance without the need for multiple separate cable runs.