Diagrams for electrotechnology


As part of day to day work electricians need to wire buildings and appliances. Information relating to the wiring of these can be supplied in a variety of formats including:

  • site plans
  • floor plans
  • block diagrams
  • circuit diagrams
  • wiring diagrams
  • ladder diagrams
  • cable schedules.

Photo showing a worker studying a diagram

Using diagrams


You need to know how to read and interpret all of these formats, as well as be able to draw diagrams. You also need to be familiar with the variety of switching circuits used for lighting.

The information in this section of resources relates to the different types of diagrams, schedules and lighting circuits used in the electrical trade.