Electrical Design and Draughting Course

Lesson 1 • Circuit Types and Configurations

Explains series, parallel, and combination circuits with practical examples. Prepares learners to select appropriate configurations during schematic design.

Lesson 2 • Core Electrical Concepts and Units

Covers voltage, current, resistance, and power relationships using Ohm's Law. Establishes the quantitative language used throughout all subsequent design work.

Lesson 3 • Industry Terminology and Documentation

Defines key terms used in electrical drawings, specifications, and project documents. Enables accurate communication with engineers, contractors, and inspectors.

Lesson 1 • Line Types, Weights, and Styles

Defines the meaning and application of each line type used in electrical drafting. Correct line usage communicates design intent without ambiguity.

Lesson 2 • Annotation, Dimensioning, and Notation

Teaches text placement, wire numbering, component tagging, and dimension standards. Accurate annotation prevents misinterpretation during installation and inspection.

Lesson 3 • Drawing Sheet Setup and Formats

Covers standard sheet sizes, title blocks, borders, and zones. Proper setup ensures drawings are traceable, scalable, and compliant with industry conventions.

Lesson 4 • Regulatory and Standards Compliance

Introduces the role of national and international electrical standards in drawing production. Learners align drawing practices with safety and compliance requirements.

Lesson 1 • Drawing and Editing Fundamentals

Covers essential draw and modify commands used in every electrical drawing task. Mastery of these commands forms the foundation for all subsequent CAD work.

Lesson 2 • Blocks, Symbols, and Libraries

Teaches creation and insertion of reusable symbol blocks for electrical components. Standardised blocks ensure consistency and speed across all project drawings.

Lesson 3 • Layers, Colours, and Plot Styles

Explains layer management strategies and plot style configuration for print output. Correct layer use enables selective display, editing, and professional print quality.

Lesson 4 • CAD Interface and Workspace Setup

Orients learners to the CAD environment, toolbars, and drawing settings. A properly configured workspace accelerates drawing production and reduces errors.

Lesson 1 • Schematic Review and Error Checking

Introduces electrical rules checks and peer review techniques for schematics. Systematic review catches design errors before they propagate to layout or installation.

Lesson 2 • Wiring and Net Connections

Teaches how to draw wires, buses, and net labels to represent electrical connections. Accurate net connectivity is the core functional requirement of any schematic.

Lesson 3 • Power and Earth Symbols

Covers the correct use of power rail symbols, earth references, and supply notation. Consistent power notation prevents misreads that cause dangerous wiring mistakes.

Lesson 4 • Schematic Layout Principles

Establishes rules for signal flow direction, component spacing, and net organisation. Good layout makes schematics readable and reduces wiring errors during implementation.

Lesson 1 • Single-Line Diagram Fundamentals

Explains the purpose and conventions of single-line diagrams for power systems. Learners understand how one-line notation simplifies complex three-phase system representation.

Lesson 2 • Switchgear and Protection Devices

Covers symbols and placement of circuit breakers, fuses, disconnects, and protective relays. Accurate protection device representation is critical for safety and compliance review.

Lesson 3 • Load Schedules and Panel Schedules

Covers the creation of panel schedules linked to SLDs for load documentation. Panel schedules provide the data needed for load calculations and code compliance.

Lesson 4 • Transformers and Distribution Equipment

Teaches how to represent transformers, switchboards, panelboards, and metering on SLDs. Correct equipment representation supports load flow analysis and equipment sizing.

Lesson 1 • Coordination with Other Disciplines

Addresses clash detection and coordination with mechanical, plumbing, and structural systems. Interdisciplinary coordination prevents costly field conflicts during construction.

Lesson 2 • Circuit Routing and Home Run Notation

Explains how to draw circuit lines, home runs, and circuit identifiers on floor plans. Clear circuit routing enables accurate panel schedule creation and installation sequencing.

Lesson 3 • Conduit and Raceway Layout

Teaches conduit routing, sizing notation, and raceway type identification on drawings. Proper conduit layout supports fill calculations and installation planning.

Lesson 4 • Working with Architectural Base Plans

Teaches how to import, reference, and scale architectural drawings as a base for electrical layout. Accurate base plan use prevents coordination conflicts during construction.

Lesson 1 • Panel Layout and Enclosure Drawings

Covers physical layout drawings for control panels, including component mounting positions. Panel layout drawings enable fabrication without requiring interpretation of schematics.

Lesson 2 • Point-to-Point Wiring Diagrams

Teaches the creation of wiring diagrams showing terminal-to-terminal connections. Point-to-point diagrams guide panel builders and field technicians during installation.

Lesson 3 • Interlocks and Safety Circuits

Explains electrical interlock design, emergency stop circuits, and safety relay integration. Safety circuit documentation must meet functional safety requirements for machinery.

Lesson 4 • Control Devices and Their Symbols

Covers symbols for pushbuttons, limit switches, timers, counters, and contactors. Accurate device symbols ensure technicians select and wire the correct hardware.

Lesson 1 • Load Calculations and Sizing Documentation

Teaches demand load calculations, service sizing, and documentation of calculation results. Calculation documentation supports permit approval and demonstrates code compliance.

Lesson 2 • Permit Submission and Review Process

Explains the permit application process, drawing submission requirements, and plan review response. Learners prepare drawing sets that satisfy authority having jurisdiction requirements.

Lesson 3 • Electrical Specifications and Notes

Covers writing general notes, installation specifications, and material standards for drawing sets. Specifications define quality and compliance requirements that drawings alone cannot convey.

Lesson 4 • As-Built Documentation and Closeout

Covers the process of updating drawings to reflect field changes and producing as-built records. As-built drawings are essential for future maintenance, renovation, and compliance audits.