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Electrical Inspector Certification Prep (ICC/IAEI)
More than 2 million students worldwide

Electrical Inspector Certification Prep (ICC/IAEI)

Get fully prepared to pass the ICC and IAEI Electrical Inspector certification exams with a course built around real code requirements and field-proven inspection procedures. You'll cover everything from service entrance clearances to hazardous location classifications, load calculations, and grounding systems. Every topic is tied directly to what shows up on the exam and on the job.

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What you will learn:

This course walks you through the complete body of knowledge required for electrical inspector certification. You will master NEC code structure, wiring methods, overcurrent protection, and grounding and bonding requirements. Load calculation methods for residential, commercial, and industrial occupancies are covered in full detail. You will also study special occupancies including healthcare facilities and hazardous locations, plus emerging systems such as PV arrays and EV charging equipment. Systematic field inspection procedures and mock inspection scenarios prepare you for real-world decisions. Timed practice exams and exam strategy training ensure you walk into test day ready to pass.

How you study in practice Electrical Inspector Certification Prep (ICC/IAEI)

How you practice Electrical Inspector Certification Prep (ICC/IAEI)

For companies that want to train their team

With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 39 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Electrical Inspection

  • Lesson 1 • Permit and Plan Review Basics

    Covers the permit application workflow and basic plan review criteria. Connects documentation review to field inspection readiness.

  • Lesson 2 • Inspection Documentation and Records

    Explains how to complete inspection reports, correction notices, and certificates. Accurate records protect inspectors legally and support code compliance tracking.

  • Lesson 3 • Role and Authority of the Inspector

    Defines the legal basis, scope, and limits of inspector authority. Establishes why understanding jurisdiction and enforcement powers is essential before any field work.

  • Lesson 4 • Navigating the Electrical Code

    Introduces code structure, article layout, and cross-reference methods. Students gain confidence locating requirements quickly during inspections and exams.

Chapter 2See details

Electrical Theory for Inspectors

  • Lesson 1 • Power, Energy, and Heat

    Explains real, reactive, and apparent power and their inspection implications. Connects heat generation to conductor ampacity and equipment ratings.

  • Lesson 2 • Grounding and Bonding Theory

    Explains why grounding and bonding are required and how they function electrically. Builds the theoretical foundation for the grounding inspection chapter.

  • Lesson 3 • AC Fundamentals and Waveforms

    Introduces alternating current, frequency, and phase relationships. Prepares inspectors to evaluate single-phase and three-phase system installations.

  • Lesson 4 • Magnetism and Transformer Basics

    Covers electromagnetic induction and transformer operation at an inspector-relevant level. Enables evaluation of transformer installations and secondary voltage verification.

  • Lesson 5 • Voltage, Current, and Resistance

    Covers fundamental electrical quantities and their relationships. Provides the quantitative basis needed to assess conductor sizing and overcurrent protection.

Chapter 3See details

Wiring Methods and Materials

  • Lesson 1 • Boxes, Enclosures, and Fittings

    Explains box fill calculations, enclosure types, and fitting requirements. Proper box selection prevents overheating and ensures safe conductor terminations.

  • Lesson 2 • Raceway Systems

    Covers conduit types, fill calculations, and installation standards. Raceway compliance is critical in commercial and industrial inspections.

  • Lesson 3 • Cable Assemblies and Their Applications

    Identifies common cable types, their permitted uses, and installation restrictions. Inspectors must distinguish approved from prohibited applications by occupancy and location.

  • Lesson 4 • Wiring in Special Locations

    Addresses wiring method restrictions in wet, damp, corrosive, and high-temperature environments. Inspectors apply location-specific rules to approve or reject installations.

  • Lesson 5 • Conductor Types and Sizing

    Covers conductor materials, insulation types, and ampacity tables. Correct sizing is the most frequently inspected element of any installation.

Chapter 4See details

Overcurrent Protection and Load Calculations

  • Lesson 1 • Residential Load Calculations

    Walks through the standard and optional methods for calculating dwelling unit loads. Inspectors use these calculations to verify service size adequacy.

  • Lesson 2 • Feeder and Service Sizing

    Applies demand factors and load calculations to size feeders and service conductors. Accurate sizing ensures safety without over-engineering.

  • Lesson 3 • Branch Circuit Protection Rules

    Covers maximum overcurrent device sizes for branch circuits by conductor and load type. Inspectors verify that device ratings match conductor ampacity and load requirements.

  • Lesson 4 • Commercial and Industrial Load Calculations

    Extends load calculation methods to non-dwelling occupancies with diverse load types. Prepares inspectors for complex panel schedule reviews.

  • Lesson 5 • Overcurrent Device Fundamentals

    Explains how fuses and circuit breakers interrupt fault current and overloads. Understanding device operation is prerequisite to evaluating correct sizing.

Chapter 5See details

Grounding, Bonding, and GFCI/AFCI

  • Lesson 1 • AFCI Protection Requirements

    Covers arc-fault circuit interrupter requirements by room type and circuit configuration. Inspectors confirm correct device type and installation to prevent electrical fires.

  • Lesson 2 • Service and System Bonding

    Addresses main bonding jumpers, system bonding jumpers, and supply-side bonding. Correct bonding ensures fault current returns to the source to trip overcurrent devices.

  • Lesson 3 • Grounding Electrode Systems

    Covers required electrodes, connections, and conductor sizing for grounding electrode systems. Proper electrode installation is the first line of defense against voltage surges.

  • Lesson 4 • GFCI Protection Requirements

    Maps all locations requiring ground-fault circuit interrupter protection by occupancy and environment. Inspectors verify device placement, testing, and labeling compliance.

  • Lesson 5 • Equipment Grounding Conductors

    Explains sizing, routing, and termination of equipment grounding conductors. Inspectors verify that fault current paths are low-impedance and continuous.

Chapter 6See details

Services, Panels, and Switchgear

  • Lesson 1 • Switchgear and Switchboard Inspection

    Extends panel inspection skills to larger switchgear and switchboard assemblies. Inspectors evaluate bus ratings, labeling, and arc-flash hazard markings.

  • Lesson 2 • Working Space and Dedicated Space

    Applies code-required clearances around electrical equipment for safe operation and maintenance. Inspectors reject installations that block required working or dedicated space.

  • Lesson 3 • Service Entrance Requirements

    Covers service drop and lateral clearances, point of attachment, and service head requirements. Correct service entrance installation prevents contact hazards and weather damage.

  • Lesson 4 • Panelboard Inspection Criteria

    Addresses panelboard ratings, circuit directory, and interior wiring requirements. A thorough panel inspection catches the majority of residential and commercial violations.

  • Lesson 5 • Service Disconnect Requirements

    Explains the number, location, and rating requirements for service disconnecting means. Inspectors verify that disconnects are accessible and properly labeled.

Chapter 7See details

Special Occupancies and Hazardous Locations

  • Lesson 1 • Assembly and Educational Occupancies

    Covers emergency lighting, exit signs, and egress path wiring for high-occupancy buildings. Inspectors confirm life-safety systems are independent and properly powered.

  • Lesson 2 • Agricultural and Marinas Installations

    Applies unique grounding, equipotential, and wiring rules for farms and marina facilities. These environments present elevated shock and corrosion risks requiring special inspection focus.

  • Lesson 3 • Healthcare Facility Electrical Requirements

    Addresses essential electrical systems, patient care areas, and isolated power requirements. Healthcare inspections require understanding of life-safety system redundancy.

  • Lesson 4 • Hazardous Location Classification

    Introduces the class, division, and zone classification systems for flammable and combustible environments. Correct classification drives every subsequent equipment and wiring decision.

  • Lesson 5 • Equipment for Hazardous Locations

    Covers explosion-proof, intrinsically safe, and purged equipment requirements. Inspectors verify equipment markings match the classified area designation.

Chapter 8See details

Advanced Inspection Practice and Exam Prep

  • Lesson 1 • Exam Strategy and Question Analysis

    Teaches how to decode exam question stems, eliminate distractors, and manage time. Strategic test-taking raises scores independent of additional content knowledge.

  • Lesson 2 • Timed Practice Exams and Review

    Administers full-length timed practice exams followed by detailed answer review. Repeated testing under exam conditions builds speed, accuracy, and confidence.

  • Lesson 3 • Mock Inspection Scenarios

    Presents realistic residential, commercial, and industrial inspection scenarios for practice. Scenario-based learning bridges code knowledge and field judgment.

  • Lesson 4 • Code Interpretation and Application

    Develops skills for resolving ambiguous code language and applying intent over literal reading. Inspectors who interpret code correctly make defensible, consistent decisions.

  • Lesson 5 • Systematic Field Inspection Procedures

    Establishes a repeatable inspection sequence from rough-in through final. A consistent process reduces missed violations and supports defensible documentation.

Certification

Your valid completion certificate

This course is for you:

  • Journeyman electrician: ready to move from installations into code enforcement.

  • Electrical contractor: seeking authority to inspect and approve permitted work.

  • Building department employee: transitioning into a dedicated electrical inspector role.

  • Military veteran with electrical training: converting service skills to civilian certification.

  • Construction project manager: needing deeper code knowledge to oversee electrical compliance.

  • Recent electrical engineering graduate: pursuing a government inspection career path.

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