Electrical Maintenance Course

Lesson 1 • Electrical Safety Regulations and Standards

Introduces regulatory frameworks and industry standards governing safe electrical work. Compliance knowledge protects workers and organisations from liability.

Lesson 2 • Personal Protective Equipment for Electricians

Covers selection, inspection, and proper use of PPE rated for electrical work. Correct PPE use is mandatory before any live or de-energised task.

Lesson 3 • Electrical Hazards and Risk Recognition

Identifies shock, arc flash, and fire hazards present in electrical environments. Builds the hazard-awareness foundation required for all subsequent hands-on work.

Lesson 4 • Lockout/Tagout Procedures

Teaches the full energy-control sequence to de-energise equipment safely. Mastery prevents accidental re-energisation during maintenance tasks.

Lesson 1 • Fundamentals of Electricity

Explains atomic structure, electron flow, and the nature of electrical charge. These concepts underpin every calculation and diagnostic technique in the course.

Lesson 2 • Series and Parallel Circuit Analysis

Analyses voltage drops, current distribution, and resistance in series and parallel configurations. These skills are essential for troubleshooting multi-branch circuits.

Lesson 3 • Magnetism and Electromagnetic Induction

Explains magnetic fields, flux, and Faraday's induction principle as applied to motors and transformers. Provides the physics basis for rotating machinery chapters.

Lesson 4 • Ohm's Law and Power Calculations

Applies Ohm's Law to calculate voltage, current, and resistance in circuits. Power formulas are used to size components and evaluate energy consumption.

Lesson 1 • Clamp Meter and Current Measurement

Teaches non-contact current measurement using clamp meters on live conductors. Accurate current readings are critical for load analysis and fault detection.

Lesson 2 • Power Quality Analysers and Oscilloscopes

Introduces power quality measurement for harmonics, sags, and transients affecting equipment. Oscilloscope waveform capture supports advanced fault analysis.

Lesson 3 • Voltage Testers and Proximity Detectors

Introduces non-contact voltage testers and solenoid testers for quick live-circuit verification. These tools confirm de-energisation before LOTO release.

Lesson 4 • Insulation Resistance Testing

Applies megohmmeter testing to evaluate insulation integrity of cables and motors. Trending insulation resistance values predicts failures before they occur.

Lesson 1 • Conductor Types and Sizing

Explains wire gauge systems, ampacity ratings, and insulation temperature classes. Correct conductor selection prevents overheating and premature insulation failure.

Lesson 2 • Reading Wiring Diagrams and Schematics

Develops the ability to interpret ladder diagrams, wiring diagrams, and one-line drawings. Schematic reading is required for every troubleshooting and installation task ahead.

Lesson 3 • Cable Types and Raceway Systems

Identifies common cable assemblies and raceway types used in industrial and commercial settings. Proper raceway selection protects conductors from mechanical and environmental damage.

Lesson 4 • Wire Termination and Splicing Techniques

Teaches stripping, crimping, lugging, and splicing methods for reliable electrical connections. Poor terminations are a leading cause of heat buildup and equipment failure.

Lesson 1 • Circuit Breakers and Fuses

Covers overcurrent protection devices, their ratings, and proper selection for circuit protection. Correct device selection prevents nuisance trips and equipment damage.

Lesson 2 • Service Entrance and Main Disconnect

Covers utility service configurations, metering, and main disconnect operation. Understanding the service entrance is essential before working on any downstream equipment.

Lesson 3 • Distribution System Troubleshooting

Applies measurement and schematic skills to diagnose voltage imbalance, overloads, and open circuits in distribution systems. Systematic fault isolation minimises downtime.

Lesson 4 • Switchgear and Motor Control Centers

Introduces medium-voltage switchgear and MCC construction, racking, and maintenance. These skills apply to industrial facilities with large motor and distribution loads.

Lesson 1 • AC Motor Construction and Operation

Explains induction motor components, rotating magnetic fields, and slip. This mechanical and electrical understanding is the basis for all motor maintenance tasks.

Lesson 2 • Motor Winding and Insulation Testing

Applies megohmmeter and winding resistance tests to evaluate motor insulation and winding condition. Early detection of winding degradation prevents catastrophic failures.

Lesson 3 • Motor Troubleshooting and Fault Diagnosis

Applies a systematic approach to diagnose overheating, vibration, noise, and failure-to-start conditions. Structured diagnosis reduces mean time to repair.

Lesson 4 • Motor Bearing Inspection and Lubrication

Covers bearing types, failure modes, vibration indicators, and correct lubrication practices. Bearing failures account for the majority of motor breakdowns in industry.

Lesson 1 • Control Circuit Wiring and Logic

Teaches start/stop, jog, and interlocking control circuits using ladder logic diagrams. Control circuit mastery enables technicians to modify and troubleshoot any starter panel.

Lesson 2 • Reduced-Voltage and Soft Starters

Covers star-delta, autotransformer, and electronic soft-starter methods for limiting inrush current. Reduced-voltage starting extends motor and mechanical system life.

Lesson 3 • VFD Maintenance and Troubleshooting

Covers VFD preventive maintenance, fault code interpretation, and component-level diagnosis. Rapid VFD restoration minimises production downtime in automated facilities.

Lesson 4 • Contactors and Motor Starters

Explains contactor construction, coil operation, and overload relay function in motor starters. These devices are the primary switching elements in motor control circuits.

Lesson 1 • Oil and Transformer Fluid Analysis

Covers dissolved gas analysis and dielectric testing of transformer insulating oil. Fluid analysis reveals internal faults and insulation degradation in transformers.

Lesson 2 • Reliability Metrics and Continuous Improvement

Introduces MTBF, MTTR, and OEE metrics to evaluate and improve maintenance programme effectiveness. Data-driven decisions optimise resource allocation and reduce total maintenance cost.

Lesson 3 • Preventive Maintenance Planning

Establishes PM task lists, frequencies, and documentation for electrical equipment. A well-designed PM programme reduces unplanned failures and extends equipment life.

Lesson 4 • Infrared Thermography for Electrical Systems

Applies thermal imaging to detect hot spots in panels, connections, and motors. Thermography identifies developing faults before they cause failures or fires.