Domestic Electrician Course

Lesson 1 • Electrical Hazards and Risk Awareness

Identifies shock, arc flash, and fire hazards common in domestic settings. Connects hazard recognition to safe decision-making before any practical work begins.

Lesson 2 • Regulatory Framework for Domestic Wiring

Introduces wiring regulations, inspection standards, and certification requirements applicable to residential installations. Provides the compliance context for all practical tasks.

Lesson 3 • Personal Protective Equipment and Safe Practices

Specifies PPE selection, inspection, and correct use for electrical work. Reinforces a safety-first mindset that underpins all subsequent practical chapters.

Lesson 1 • Test Instruments and Their Applications

Introduces multimeters, insulation testers, and loop impedance meters used throughout installation and verification. Familiarity with instruments prepares learners for later testing chapters.

Lesson 2 • Hand Tools and Power Tools for Electricians

Covers selection, safe use, and maintenance of screwdrivers, pliers, cable strippers, and drills. Correct tool use reduces installation errors and personal injury risk.

Lesson 3 • Wiring Accessories and Enclosures

Covers sockets, switches, ceiling roses, and consumer unit enclosures used in residential work. Correct accessory selection and mounting ensures safety and regulatory compliance.

Lesson 4 • Cables, Conductors, and Insulation Types

Explains conductor materials, insulation ratings, and common cable types used in domestic circuits. Correct cable selection ensures safe current-carrying capacity and longevity.

Lesson 1 • Electrical Symbols and Notation

Introduces standardised symbols for switches, outlets, luminaires, and protective devices. Symbol literacy is the prerequisite for interpreting any wiring diagram or plan.

Lesson 2 • Wiring Diagrams for Common Domestic Circuits

Applies diagram-reading skills to lighting, ring final, and radial circuit layouts. Learners connect drawn circuits to the physical wiring methods taught in subsequent chapters.

Lesson 3 • Circuit Diagrams and Schematic Reading

Explains how to trace current paths through schematic and wiring diagrams. Accurate diagram reading prevents miswiring and supports fault diagnosis later in the course.

Lesson 1 • Lighting Circuit Design Principles

Covers load calculations, circuit protection sizing, and cable selection for lighting circuits. Sound design decisions prevent overloading and ensure regulatory compliance.

Lesson 2 • Luminaire Types and Installation

Covers pendant, recessed, batten, and bathroom luminaire installation including heat dissipation requirements. Correct fitting selection and mounting ensures safety and longevity.

Lesson 3 • Dimmer Switches and Lighting Controls

Explains dimmer compatibility, load limits, and wiring for manual and smart lighting controls. Learners select and install appropriate controls for LED and traditional lamp types.

Lesson 4 • Intermediate Switching and Multi-Location Control

Extends two-way switching to three or more control points using intermediate switches. Learners wire staircase and hallway circuits requiring control from multiple locations.

Lesson 1 • Radial Circuit Design and Applications

Explains when radial circuits are used instead of ring finals and how to size them correctly. Learners apply radial design to kitchens, garages, and dedicated appliance circuits.

Lesson 2 • Socket Outlet Installation and Positioning

Covers mounting heights, back box installation, and correct conductor termination at socket outlets. Proper installation prevents loose connections and shock risk.

Lesson 3 • Residual Current Device Protection for Circuits

Explains RCD types, tripping thresholds, and mandatory protection zones in domestic installations. Learners apply RCD protection rules to socket and appliance circuits correctly.

Lesson 4 • Fixed Appliance Connections

Teaches connection methods for cookers, dishwashers, washing machines, and electric showers. Learners select appropriate connection units and cable sizes for each appliance.

Lesson 1 • RCD as Fault Protection in TT Systems

Explains why TT systems rely on RCDs for fault protection and how to verify correct operation. Learners apply RCD-based protection where loop impedance cannot achieve disconnection times.

Lesson 2 • Automatic Disconnection of Supply

Teaches maximum disconnection time requirements and how loop impedance values determine compliance. Learners calculate and verify ADS compliance for each circuit type.

Lesson 3 • Earthing System Types and Configurations

Explains TN-S, TN-C-S, and TT earthing arrangements and their implications for domestic installations. Earthing system identification determines all subsequent fault protection design decisions.

Lesson 1 • Consumer Unit Types and Components

Identifies split-load, dual RCD, and RCBO consumer unit configurations and their internal components. Component knowledge is essential before any consumer unit work is attempted.

Lesson 2 • Consumer Unit Installation and Wiring

Teaches physical mounting, incoming cable connection, and circuit wiring within a consumer unit. Neat, correctly terminated wiring reduces fault risk and aids future maintenance.

Lesson 3 • Supply Intake and Metering Arrangements

Covers service head, meter tails, and metering equipment arrangements at the supply intake position. Understanding intake arrangements is required before connecting any consumer unit.

Lesson 4 • Protective Device Selection and Coordination

Covers MCB current ratings, tripping characteristics, and breaking capacity selection for domestic circuits. Correct device selection ensures safe disconnection under fault conditions.

Lesson 1 • Certification, Documentation, and Handover

Covers completion of electrical installation certificates, minor works certificates, and test schedules. Accurate documentation protects the electrician legally and informs future maintenance.

Lesson 2 • Periodic Inspection and Condition Reporting

Explains the purpose, scope, and coding system used in periodic electrical installation condition reports. Learners assess existing installations and assign condition codes accurately.

Lesson 3 • Polarity, Earth Fault Loop Impedance, and RCD Testing

Teaches polarity verification, loop impedance measurement, and RCD trip time testing procedures. Results confirm that fault protection will operate correctly under real fault conditions.

Lesson 4 • Initial Verification Sequence and Visual Inspection

Establishes the mandatory order of inspection and testing before energising a new installation. Visual checks identify non-compliances that could invalidate subsequent electrical tests.