Single Line Diagram & Troubleshooting

Course details

Electrical Symbols
Review of standard symbols, and
Symbol identification and meaning
Basic layout
Familiarization with the layout of different schematics and one line diagrams
Elementary Electrical Diagrams
What are schematics used for and why are they necessary
DC voltage schematic
Introduction, familiarization and review of: Series circuit, Parallel Circuit and Series / Parallel circuit
Single-Line Diagram

Purpose of a single line,
Equipment identification, and
Hazardous energy control.

AC voltage schematic
Equipment identification, and
Trouble shooting and fault finding.

Developing and Maintaining a single line diagram
Site familiarization,
Equipment identification and inventory,
Nomenclature verification,
Preparing a block diagram,
Interconnecting the equipment,
Verification of accuracy, and
Practical exercise

Troubleshooting using electrical schematic
Effective trouble shooting approach
Evaluating and assessing the fault
Mapping a solution
Identifying the hazards


Case study
Create a block map of the installed equipment
Transfer the information to the one line diagram
Verify electrical prints and make changes to existing diagrams
Create and maintain regulatory compliant electrical diagrams
Question and Answer Session
  Updated on 18 September, 2019