Cabling - Class 11th - Electronics and Hardware

Topic: Unit 5 – Cabling

• Core Concepts: Defines cables as assemblies of twisted or braided wires, and cabling as the process of setup and connection.

• Anatomy of a Cable: Identifies essential structural layers: the cable jacket, wire insulation, and stripped conductor wire.

• Applications: Covers the key uses of cables in power transmission, telecommunications, television displays, broadband internet, and computing hardware.

• Selection Factors: Outlines critical technical and economic criteria for choosing a cabling system, including installation cost, durability, permanency against harsh weather, physical accessibility, appearance/tagging, mechanical safety, maintenance costs, and electrical load requirements.

• Cable Classifications: Categorizes cables based on four structural criteria:

  1. Conductor Material: Copper and aluminum cables.

  2. Number of Cores: Single-core, twin-core, and three-core configurations.

  3. Voltage Rating

  4. Insulation Type: Vulcanized Indian Rubber (VIR), Tough Rubber Sheathed/Cab Tyre Sheathed (TRS/CTS), Polyvinyl Chloride (PVC), and Lead Sheath cables.