Electrical Drafting Course

Lesson 1 • Drawing Standards and Conventions

Covers line weights, notation styles, title blocks, and revision clouds per industry standards. Consistent conventions ensure drawings are universally readable.

Lesson 2 • Standard Electrical Symbols

Introduces standardized symbols for devices, conductors, and equipment. Accurate symbol use is the foundation of readable electrical drawings.

Lesson 3 • Role of the Electrical Drafter

Defines drafter responsibilities within engineering and construction teams. Establishes professional context for all subsequent technical skills.

Lesson 4 • Basic Electrical Concepts for Drafters

Provides the minimum electrical theory needed to draft accurately. Covers voltage, current, circuits, and load concepts without deep engineering math.

Lesson 1 • CAD Interface and Workspace Setup

Orients students to the CAD interface and configures it for electrical work. Proper setup reduces errors and speeds production throughout the course.

Lesson 2 • Drawing and Editing Fundamentals

Covers essential draw and modify commands used in every electrical drawing. Mastery of these commands is prerequisite for all subsequent drafting tasks.

Lesson 3 • Blocks and Symbol Libraries

Introduces block creation, insertion, and attribute editing for electrical symbols. Reusable blocks enforce symbol consistency and accelerate drawing production.

Lesson 4 • Annotation, Dimensions, and Text Styles

Applies text styles, leaders, and dimension tools to annotate electrical drawings. Correct annotation communicates design intent clearly to field installers.

Lesson 1 • Schematic Layout Principles

Establishes rules for organising components, signal flow, and wire routing on schematics. Good layout makes circuit logic immediately readable to engineers and technicians.

Lesson 2 • Wire Numbering and Tagging

Applies systematic wire numbering schemes to schematics for field identification. Consistent numbering links drawings to physical wiring and simplifies troubleshooting.

Lesson 3 • Schematic Review and Error Checking

Introduces methods for self-checking schematics before submission. Systematic review catches missing connections, symbol errors, and numbering conflicts.

Lesson 4 • Control Circuit Schematics

Drafts ladder-logic and control schematics for motor starters, relays, and interlocks. Control schematics translate operational sequences into readable circuit diagrams.

Lesson 1 • Riser Diagrams for Buildings

Drafts vertical riser diagrams showing electrical distribution across building floors. Riser diagrams coordinate with architectural floor plans and structural drawings.

Lesson 2 • Protection and Coordination Notation

Adds protective device ratings, settings, and coordination notes to single-line drawings. Proper notation supports relay coordination studies and regulatory submissions.

Lesson 3 • Single-Line Diagram Fundamentals

Explains the purpose and conventions of single-line diagrams for power systems. Single-line drawings are the primary tool for communicating system architecture.

Lesson 4 • Drafting Distribution System Single-Lines

Applies single-line conventions to draft utility service entrance through branch distribution. Accurate single-lines support load calculations and equipment sizing.

Lesson 1 • Power Plans and Equipment Layouts

Creates power plans showing mechanical equipment connections, panels, and disconnects. Power plans coordinate electrical work with mechanical and plumbing trades.

Lesson 2 • Working with Architectural Base Plans

Teaches importing, scaling, and referencing architectural drawings as a base for electrical layouts. Correct base plan setup prevents costly coordination errors.

Lesson 3 • Circuiting and Homerun Notation

Draws circuit lines connecting devices and homerun arrows indicating panel source. Clear circuiting enables installers to pull wire efficiently and accurately.

Lesson 4 • Placing Electrical Devices on Floor Plans

Covers placement of receptacles, switches, lighting fixtures, and panels on floor plans. Accurate device placement reflects code-compliant design intent.

Lesson 1 • Panel Schedule Structure and Format

Explains the layout and required fields of a standard panel schedule. Panel schedules are the primary reference for circuit identification during installation.

Lesson 2 • Coordinating Schedules with Other Drawings

Links panel schedule data to floor plans, single-lines, and riser diagrams for consistency. Cross-document coordination prevents discrepancies that cause field delays.

Lesson 3 • Basic Load Calculation Methods

Introduces demand factor and connected load methods for sizing panels and feeders. Drafters must understand load calculations to produce accurate schedule totals.

Lesson 4 • Drafting Panel Schedules in CAD

Builds panel schedule tables using CAD table tools and linked attributes. Efficient CAD methods reduce errors and allow rapid updates when circuits change.

Lesson 1 • Electrical Installation Details

Drafts standard installation details for conduit supports, penetrations, and equipment mounting. Details reduce field interpretation errors and ensure code-compliant installation.

Lesson 2 • Conduit Routing Plans

Drafts plan-view conduit routing showing paths, sizes, and junction box locations. Routing plans reduce field improvisation and support material takeoffs.

Lesson 3 • Wiring Diagrams for Equipment

Creates point-to-point wiring diagrams for panels, starters, and control enclosures. Wiring diagrams guide technicians in making correct terminal connections.

Lesson 4 • Underground and Site Electrical Plans

Produces site plans showing underground conduit, manholes, and exterior equipment pads. Site electrical plans coordinate with civil and landscape drawings.

Lesson 1 • Drawing Set Organisation and Indexing

Establishes sheet numbering, drawing index, and file naming for a complete electrical set. Organised sets reduce confusion during review, permitting, and construction.

Lesson 2 • Cross-Referencing Across Sheets

Applies detail bubbles, section cuts, and sheet references to link related drawings. Accurate cross-references allow users to navigate the drawing set efficiently.

Lesson 3 • Drawing Set Quality Control

Applies a systematic QC process to the full drawing set before submission. QC catches errors that cause permit rejections, change orders, and field delays.

Lesson 4 • Submitting and Managing Drawing Revisions

Covers revision cloud markup, revision block updates, and reissue procedures. Proper revision management maintains a clear record of design changes over time.