Basic Electrical Course

Lesson 1 • Voltage, Current, and Resistance

Defines the three fundamental electrical quantities and their units. Links each quantity to measurable, real-world building scenarios.

Lesson 2 • Electrical Power and Energy

Introduces watts, kilowatts, and energy consumption in buildings. Connects power formulas to load estimation and billing concepts.

Lesson 3 • Ohm's Law in Practice

Applies Ohm's Law to calculate unknown values in simple circuits. Builds quantitative problem-solving skills used throughout the course.

Lesson 4 • AC vs. DC in Buildings

Distinguishes alternating current from direct current and identifies where each appears in building systems. Sets context for wiring and equipment chapters.

Lesson 1 • Lockout and Tagout Procedures

Teaches the step-by-step process for de-energising circuits before work. Prevents accidental energisation, a leading cause of electrical fatalities.

Lesson 2 • Personal Protective Equipment for Electricians

Identifies required PPE categories and correct usage for electrical work. Directly supports safe practice in all subsequent hands-on sections.

Lesson 3 • Effects of Electricity on the Human Body

Explains how current magnitude and path affect injury severity. Motivates strict safety compliance by grounding rules in physiological reality.

Lesson 4 • Fire Hazards and Emergency Response

Covers electrical fire causes, extinguisher selection, and first-aid priorities. Prepares learners to respond correctly when incidents occur.

Lesson 1 • Circuit Tracers and Tone Generators

Covers tools used to identify and trace circuits inside walls and panels. Supports troubleshooting skills introduced in later chapters.

Lesson 2 • Using a Digital Multimeter

Teaches multimeter functions: voltage, current, resistance, and continuity. Directly enables circuit testing performed in later chapters.

Lesson 3 • Hand Tools for Electrical Work

Identifies essential hand tools and their specific electrical applications. Establishes correct tool selection habits before wiring tasks begin.

Lesson 4 • Tool Maintenance and Calibration

Establishes inspection routines and calibration checks for electrical tools. Ensures measurement accuracy and prevents tool-related safety incidents.

Lesson 1 • Conduit Types and Selection

Introduces rigid, intermediate, and flexible conduit systems and their trade-offs. Prepares learners for conduit installation covered in the next chapter.

Lesson 2 • Cable Assemblies and Their Applications

Identifies common cable types used in residential and light commercial wiring. Connects cable selection to installation environment and load type.

Lesson 3 • Boxes, Fittings, and Enclosures

Covers outlet boxes, junction boxes, and enclosure ratings for various environments. Ensures correct box selection before device installation practice.

Lesson 4 • Switches, Receptacles, and Devices

Identifies standard wiring devices, their ratings, and terminal connections. Directly supports device installation tasks in the wiring chapter.

Lesson 1 • Residential Electrical Floor Plans

Teaches how to read outlet, lighting, and circuit layouts on floor plans. Connects drawing interpretation to real installation planning.

Lesson 2 • Specifications and Drawing Coordination

Covers how written specifications relate to electrical drawings and resolve conflicts. Develops professional document-reading habits for field use.

Lesson 3 • Panel Schedules and Load Calculations

Explains how to read panel schedules and perform basic load calculations from drawings. Prepares learners for panel work covered in the next chapter.

Lesson 4 • Electrical Symbols and Notation

Introduces standard symbols for devices, conductors, and equipment on drawings. Provides the visual vocabulary required for all diagram-reading tasks.

Lesson 1 • Subpanels and Feeder Circuits

Introduces subpanel installation, feeder sizing, and the four-wire feeder requirement. Extends panel skills to multi-panel building configurations.

Lesson 2 • Service Entrance and Meter Equipment

Explains the path of power from the utility to the main panel. Provides context for panel work and establishes safe boundaries for beginners.

Lesson 3 • Main Panel Layout and Components

Identifies busbars, neutral bar, earth bar, and breaker positions inside a panel. Builds spatial familiarity needed before any panel wiring task.

Lesson 4 • Circuit Breakers: Types and Operation

Covers thermal-magnetic, RCD, and AFCI breakers and their tripping mechanisms. Connects breaker selection to circuit protection requirements.

Lesson 1 • Rough-In Wiring and Box Placement

Covers layout, drilling, and box mounting before drywall installation. Establishes correct positioning habits that prevent costly rework.

Lesson 2 • Installing Switches and Receptacles

Applies wiring knowledge to install single-pole, three-way switches, and receptacles. Reinforces correct terminal identification and device orientation.

Lesson 3 • Lighting Fixture Installation

Covers mounting and wiring of ceiling fixtures, recessed lights, and ceiling fans. Builds competency in the most common finish-wiring tasks.

Lesson 4 • Stripping, Splicing, and Terminating Wires

Teaches proper wire preparation and connection methods for devices and splices. Ensures reliable, code-compliant connections in every installation.

Lesson 1 • Troubleshooting Lighting and Receptacle Circuits

Applies diagnostic methods to the most common residential circuit complaints. Builds practical speed and confidence through scenario-based practice.

Lesson 2 • Troubleshooting Methodology

Introduces a structured, step-by-step diagnostic process for electrical faults. Prevents random testing and builds professional problem-solving habits.

Lesson 3 • Earth Fault Diagnosis

Explains how to detect unintended current paths to earth using test instruments. Reinforces safety concepts while building advanced diagnostic skill.

Lesson 4 • Diagnosing Short Circuits and Overloads

Covers identification of short circuits and overloaded circuits that trip breakers. Connects fault diagnosis to corrective action and load management.