Electrical Inspector Course

Lesson 1 • Role and Authority of the Inspector

Defines the legal basis and scope of inspection authority within the construction and occupancy process. Establishes why inspector decisions carry regulatory weight.

Lesson 2 • Regulatory Codes and Standards Overview

Introduces the hierarchy of electrical codes, standards, and local amendments. Students identify which documents govern each inspection type.

Lesson 3 • Professional Ethics and Conduct

Addresses impartiality, conflict of interest, and public safety obligations. Students apply ethical decision-making to realistic inspector scenarios.

Lesson 1 • Power, Energy, and Load Calculations

Covers real, reactive, and apparent power and their relevance to panel and service sizing. Students calculate demand loads for residential and commercial occupancies.

Lesson 2 • AC Circuits and Waveforms

Introduces alternating current characteristics, frequency, and phase relationships. Connects AC theory to three-phase systems commonly inspected in commercial work.

Lesson 3 • Voltage, Current, and Resistance

Explains the fundamental relationships between voltage, current, and resistance using Ohm's Law. Provides the quantitative basis for evaluating conductor sizing and load calculations.

Lesson 1 • Cable Assemblies and Flexible Wiring

Reviews approved cable types, permitted uses, and installation restrictions for each assembly. Students distinguish where cable assemblies are allowed versus required raceways.

Lesson 2 • Special Wiring Environments

Covers wiring requirements for wet, damp, corrosive, and high-temperature locations. Students apply location-specific rules to inspection checklists.

Lesson 3 • Raceway Systems

Examines conduit types, fittings, and installation requirements for each raceway system. Students evaluate fill calculations and support spacing during inspections.

Lesson 4 • Boxes, Enclosures, and Fill Calculations

Addresses box selection, volume calculations, and proper conductor fill to prevent overheating. Students perform box fill calculations and verify enclosure ratings.

Lesson 1 • Fuses and Circuit Breakers

Explains operating principles, ratings, and application rules for fuses and circuit breakers. Students identify misapplied or undersized overcurrent devices during inspections.

Lesson 2 • Service Equipment and Main Disconnects

Addresses service entrance equipment, main disconnect requirements, and working clearances. Students verify service sizing, grounding electrode connections, and disconnect accessibility.

Lesson 3 • Overcurrent Device Sizing Rules

Covers the standard sizing rules, next-size-up rule, and exceptions for motor and welder circuits. Students apply sizing rules to conductor and load combinations.

Lesson 1 • Equipment Grounding Conductors

Explains sizing, routing, and continuity requirements for equipment grounding conductors. Students trace grounding paths and identify open or missing grounds.

Lesson 2 • GFCI and AFCI Protection Requirements

Maps required GFCI and AFCI locations by occupancy type and circuit application. Students apply location-specific rules and verify device installation and testing.

Lesson 3 • Bonding Requirements

Addresses bonding of metal piping, structural steel, and separately derived systems. Students identify bonding jumper locations and verify sizing compliance.

Lesson 1 • Service and panel final inspection

Guides the final inspection of the service entrance, meter base, and main panel in a dwelling. Students verify load calculations, labeling, and grounding electrode connections.

Lesson 2 • Kitchen and bathroom inspections

Focuses on the elevated code requirements for kitchens and bathrooms due to water proximity. Students apply GFCI, circuit, and appliance wiring rules specific to these spaces.

Lesson 3 • Branch circuit requirements

Details required circuits, receptacle spacing, and lighting outlet rules for dwelling units. Students verify small appliance, laundry, and bathroom circuit compliance.

Lesson 4 • Common residential violations

Catalogs the most frequently cited residential electrical deficiencies with photographic examples. Students practice identifying and documenting violations on mock inspection reports.

Lesson 1 • Commercial occupancy classification

Explains how occupancy type drives applicable code sections and inspection scope. Students classify buildings and select the correct inspection checklist for each occupancy.

Lesson 2 • Emergency and standby systems

Reviews legally required standby and emergency system installation and separation requirements. Students verify transfer switch operation, wiring separation, and generator connections.

Lesson 3 • Industrial equipment and machinery wiring

Covers industrial control panels, machine wiring, and disconnecting means requirements. Students inspect industrial installations for compliance with machinery wiring standards.

Lesson 4 • Motor and HVAC circuit inspections

Addresses motor branch circuit, controller, and overload protection requirements. Students inspect HVAC disconnects, wiring methods, and equipment nameplate compliance.

Lesson 1 • Solar photovoltaic system inspections

Addresses PV system components, rapid shutdown requirements, and interconnection inspection points. Students verify labeling, conductor sizing, and inverter installation compliance.

Lesson 2 • Healthcare facility electrical inspections

Covers patient care area wiring, isolated power systems, and essential electrical system requirements. Students inspect healthcare installations for life-safety compliance.

Lesson 3 • Energy storage and battery systems

Covers battery energy storage system installation, ventilation, and disconnecting means requirements. Students inspect ESS installations for code compliance and fire safety.

Lesson 4 • Hazardous location classifications

Explains Class, Division, and Zone classification systems for flammable and combustible environments. Students identify classified areas and verify equipment suitability markings.