1. Definition:

Cables consist of one or more insulated conductors enclosed in a protective sheath. They are used to connect electrical and electronic devices, transmit power, and convey data signals. The choice of cable depends on factors such as the type of application, environmental conditions, and the specific electrical or data requirements.

2. Types of Cables:

• Power Cables: Designed to carry electrical power from a source to various devices or components. They are used in residential, commercial, and industrial settings. Examples include:

  • Low-Voltage Cables: For voltages up to 1,000V, used in household wiring and low-power applications.
  • Medium-Voltage Cables: For voltages between 1kV and 36kV, used in commercial and industrial applications.
  • High-Voltage Cables: For voltages above 36kV, used in power transmission and distribution networks.

• Data Cables: Used to transmit data between devices in communication and networking systems. Examples include:

  • Ethernet Cables: For networking and internet connections, commonly used in computer networks. Examples include Cat5e, Cat6, and Cat6a cables.
  • Fiber Optic Cables: For high-speed data transmission over long distances using light signals. They are used in telecommunications and high-speed internet connections.