WIRING DIAGRAM/PLAN

• Electrical Wiring Plan is a technical representation of electrical system proposed to be installed in building or house, which includes material, devices and equipment.
• Electrical wiring plan - This plan generally uses electrical symbols to represent the actual materials or devices.
• Electrical symbol is one of the most important electrical principles that engineers, electricians, and technician should know and understand.
• Electrical symbol indicate the parts of the electrical circuit.
• What is this figure?

  A) Electrical Wiring Plan

  
• Different types of electric wiring diagrams:

  • Schematic Diagram
  • Wiring Diagram
  • Pictorial Diagram
  • One line or Single line diagram
• A schematic diagram is a representation of the elements of a system using abstract, graphic symbols rather than realistic pictures.
• What figure is this?

  A) Schematic Diagram

  
• Wiring diagram - A simple visual representation of the physical connections and physical layout of an electrical system or circuit.
• The least useful of the main electrical wiring diagrams is the pictorial diagram and for this reason alone, it’s not commonly used.
• Pictorial Diagram - It makes no attempt to be an accurate representation of the circuit but concentrates on the components in the circuit.
• What diagram is this?

  Pictorial Diagram

  
• What diagram is this?

  Wiring Diagram

  
• The pictorial diagram is a picture or sketch of the components of a specific system and the wiring between these components.
• One-line or single line diagram is a diagram that uses single lines and graphic symbols to indicate the path and components of an electrical circuit.
• One-line or single line diagrams are used when information about a circuit is required but detail of the actual wire connections and operations of the circuit are not.
• What diagram is this?

  A) One-Line Diagrams

  
• Name each in order

  A) Resistors

  B) Capacitators

  C) Inductors

  D) Switches

  
• Name each in order

  A) Diodes

  B) Transistors

  C) Integrated Circuits

  D) Crystals and Oscillators

  
• Steps in Reading Electrical Wiring Plan:

  • Familiarize with the standardized electrical symbols
  • Learn reading pattern
  • Identify Polarity
  • Understand names and values