North Carolina Unlimited Electrical Contractor Exam Book Package

Prepare for the North Carolina Unlimited Electrical Contractor examination with a comprehensive book package covering commercial, industrial, institutional, residential, and large-scale electrical installations. The included references support study of services, feeders, branch circuits, motors, transformers, grounding, bonding, overcurrent protection, fire alarm systems, load calculations, plans, specifications, contractor licensing law, Board rules, business practices, and project management.

The North Carolina Unlimited electrical contractor classification is the state’s broadest regular electrical contracting license. It allows a properly licensed contractor to engage in electrical contracting projects regardless of project value, provided the work is performed under an active license and complies with applicable electrical codes, permitting requirements, inspection rules, and professional obligations.

This package includes the 2020 National Electrical Code and NFPA 72, National Fire Alarm and Signaling Code, 2019 Edition. These technical references support preparation for questions involving electrical installations, power distribution, fire alarm systems, signaling circuits, motors, generators, transformers, grounding, bonding, conductor sizing, raceways, equipment protection, emergency systems, and system calculations.

The package also includes three closed-book study references that are not allowed in the examination room: Electrical Contractors Licensing Law, the Board’s Rules for the Implementation of the Electrical Contractors Licensing Law, and the NASCLA Contractors’ Guide to Business, Law, and Project Management: North Carolina Electrical Edition.

These closed-book references address North Carolina licensing requirements, qualified-individual responsibilities, license classifications, prohibited practices, contracts, estimating, financial management, project scheduling, employment practices, insurance, safety, recordkeeping, and contractor business administration.

Unlimited electrical work may involve complex projects with multiple distribution systems, large services, panelboards, switchboards, transformers, motor loads, emergency systems, fire alarm systems, special occupancies, hazardous locations, lighting systems, and extensive plans and specifications. Successful preparation requires more than memorizing isolated Code rules. Candidates should understand how multiple NEC articles work together and how to apply those requirements to realistic project conditions.

The North Carolina Unlimited Electrical Contractor examination is open book for the approved technical references. Candidates may use the 2020 NEC and NFPA 72, 2019 Edition, during the examination. The licensing law, Board rules, and NASCLA business reference are included for closed-book preparation and cannot be consulted during the test.

This book package provides the technical, legal, and business references needed to build a structured preparation plan for the North Carolina Unlimited Electrical Contractor examination. It is designed for experienced electrical professionals preparing to demonstrate advanced technical knowledge, supervisory ability, code-navigation skills, and an understanding of electrical contracting responsibilities.

What You Get

Exam Details

The North Carolina Unlimited Electrical Contractor examination contains 100 multiple-choice questions. Candidates have a maximum of six hours to complete the examination, and a minimum score of 70 percent is required to pass.

The examination is administered through PSI after the North Carolina State Board of Examiners of Electrical Contractors approves the applicant. Candidates must receive examination authorization before scheduling a testing appointment.

The examination evaluates technical, regulatory, and business knowledge needed to supervise and direct electrical contracting without a project-value limitation. The exam may involve the National Electrical Code, NFPA 72, electrical plans, specifications, calculations, permits, inspections, licensing law, Board rules, estimating, and business practices.

Service and feeder preparation may include load calculations, service conductor sizing, service equipment, disconnecting means, grounding electrode conductors, grounded conductors, parallel conductors, transformer secondaries, feeder demand factors, voltage drop, and protection of conductors and equipment.

Branch-circuit preparation should include conductor ampacity, continuous loads, receptacle and lighting loads, appliance circuits, multiwire branch circuits, overcurrent protection, conductor identification, voltage limitations, and requirements for specific occupancies or equipment.

Motor questions may involve full-load current, branch-circuit conductor sizing, feeder sizing, overload protection, short-circuit and ground-fault protection, controllers, disconnecting means, duty ratings, multimotor installations, and the correct use of NEC motor tables.

Transformer preparation may include primary and secondary conductor sizing, overcurrent protection, grounding and bonding, separately derived systems, transformer vaults, ventilation, clearances, installations in buildings, and secondary-system calculations.

Grounding and bonding questions may involve grounding electrode systems, service bonding, separately derived systems, equipment grounding conductors, bonding jumpers, raceway bonding, parallel paths, objectionable current, metal piping, structural metal, and effective ground-fault current paths.

Raceway and conductor questions may address conduit fill, conductor adjustment, ambient-temperature correction, terminal limitations, conductor insulation, support, bends, wet locations, physical protection, cable trays, underground installations, pull boxes, junction boxes, and conductor-pulling requirements.

Overcurrent-protection preparation should include standard fuse and circuit-breaker sizes, conductor protection, tap conductors, transformer protection, motor circuits, selective coordination, series ratings, interrupting ratings, equipment protection, and permitted exceptions.

Special-system preparation may involve emergency systems, legally required standby systems, optional standby systems, fire pumps, generators, healthcare facilities, hazardous locations, marinas, swimming pools, photovoltaic systems, energy storage systems, electric vehicle charging equipment, and communications systems.

Fire alarm preparation may include control units, initiating devices, notification appliances, supervising stations, emergency communications, signaling line circuits, notification appliance circuits, system power supplies, batteries, inspection, testing, maintenance, and documentation.

Plans and specifications may require candidates to interpret symbols, riser diagrams, panel schedules, service layouts, feeder routes, motor connections, lighting plans, conductor sizes, equipment ratings, and installation notes. Candidates should practice connecting plan information with the applicable NEC requirements.

Business and law questions may involve contracts, estimating, bidding, project scheduling, financial controls, employment practices, insurance, safety programs, recordkeeping, permits, inspections, license use, supervision, and the responsibilities of a listed qualified individual.

Open Book Test

The North Carolina Unlimited Electrical Contractor examination is an open-book test. Candidates may use the 2020 National Electrical Code and NFPA 72, National Fire Alarm and Signaling Code, 2019 Edition, as the technical exam-room references included in this package.

The 2020 NEC supports questions involving electrical installation, services, feeders, branch circuits, motors, transformers, generators, grounding, bonding, conductor sizing, raceways, overcurrent protection, emergency systems, special occupancies, and special equipment.

NFPA 72, 2019 Edition, supports questions involving fire alarm system fundamentals, initiating devices, notification appliances, supervising stations, emergency communications, pathways, power supplies, documentation, inspection, testing, and maintenance.

The Electrical Contractors Licensing Law, Board rules, and NASCLA business reference are included for closed-book preparation. Candidates should study these materials before the examination because they may not be consulted during the test.

Approved references should be complete and bound in an acceptable softbound, spiral-bound, or hardbound format. Loose-leaf books, partial references, loose papers, and unauthorized inserts are not permitted.

References may be highlighted, underlined, or annotated before the examination. Notes written in pencil must be highlighted, while notes written in pen do not have to be highlighted. Candidates may not write in the references during the examination.

Permanent tabs may be used when they comply with current testing requirements. Temporary tabs, removable notes, divider tabs, stapled tabs, loose pages, and unauthorized added materials are not allowed.

Open-book testing still requires advanced familiarity with both technical references. Candidates should know how to move from a question to the proper article, chapter, table, definition, exception, annex, or cross-reference without searching randomly.

A motor-feeder question may require more than one NEC section and table. A transformer question may involve primary protection, secondary conductor rules, grounding, and separately derived system requirements. A fire alarm question may require both the NEC and NFPA 72.

Candidates should practice identifying which reference controls the subject before beginning a search. Installation and conductor questions will generally require the NEC, while system-performance, inspection, testing, and fire alarm notification questions may require NFPA 72.

Timed reference practice is essential for a six-hour, 100-question examination. Candidates should develop a repeatable process: identify the topic, select the correct reference, locate the governing provision, read the complete rule, check exceptions, and complete the calculation or interpretation.

Licensing Steps

1. Confirm the Unlimited classification. Review the authority and responsibilities associated with an electrical license that has no project-value limitation.
2. Document qualifying experience. Gather employment and project records showing the required primary, secondary, or equivalent electrical experience.
3. Prepare supervisory statements. Obtain written statements from at least two people familiar with the applicant’s ability to supervise and direct electrical wiring and installation work.
4. Complete the examination application. Submit the required personal, employment, experience, and background information to the Board.
5. Provide character references. Include the written character statements required with the application.
6. Submit experience verification. Provide records and statements documenting qualifying electrical experience.
7. Submit the examination fee. Include the applicable payment with the completed application.
8. Receive Board approval. The Board reviews the application and determines whether the applicant meets the Unlimited examination requirements.
9. Receive examination authorization. Approved candidates receive eligibility and scheduling instructions.
10. Schedule the examination. Register with PSI and select an appointment within the authorized testing period.
11. Prepare the approved references. Confirm that the 2020 NEC and NFPA 72, 2019 Edition, comply with exam-room rules.
12. Complete the examination. Bring the required identification and approved technical references to the testing center.
13. Complete the license application. After passing, submit the licensing information and financial documentation required for the Unlimited classification.
14. Establish a listed qualified individual. The license applicant must list at least one qualified individual who has the authority and responsibility to supervise electrical contracting.
15. Maintain the license. Follow renewal, continuing education, financial responsibility, supervision, and compliance requirements.

State Requirements

The North Carolina State Board of Examiners of Electrical Contractors regulates the Unlimited examination and license. The Board establishes applicant qualifications, approves examinations, certifies qualified individuals, issues licenses, and enforces electrical contracting laws and rules.

An applicant for the Unlimited classification must document at least 9,000 hours of qualifying experience. At least 8,000 hours must be primary experience. The remaining experience may be primary, secondary, or a combination of both.

Primary experience generally includes direct work installing electrical wiring and equipment governed by the NEC or work activities directly related to those installations. Credit may also be available for qualifying supervisory, estimating, inspection, engineering, instructional, maintenance, military, and other approved electrical experience.

The Unlimited applicant must submit written statements from at least two people who are familiar with the applicant’s electrical experience and can attest to the applicant’s ability to supervise and direct all electrical wiring or installation work performed by an Unlimited electrical contracting business.

The Unlimited license permits a license holder to engage in electrical contracting projects regardless of project value. Unlike the Limited and Intermediate classifications, the Unlimited classification does not impose a maximum dollar value on a single electrical contracting project.

The broad project authority of the Unlimited license does not remove the requirement to comply with the National Electrical Code, state building codes, permits, inspections, contract obligations, occupational safety requirements, and other laws governing the work.

Electrical contracting must be conducted in the exact name shown on the active license. Each principal and branch place of business must comply with the Board’s licensing and listed qualified individual requirements.

A listed qualified individual must be regularly on active duty and have the authority and responsibility to supervise and direct electrical contracting performed under the license.

Applicants for an Unlimited license must provide the financial responsibility or bonding ability documentation required for the classification. The information must be submitted in the name of the license applicant and accepted by the Board.

Passing the examination certifies the individual’s qualifications but does not by itself authorize electrical contracting. The appropriate license must be issued and active before the person or business offers to perform or performs regulated electrical contracting work.

License holders must remain within the law even though the Unlimited classification has no project-value ceiling. Fraud, misrepresentation, unlicensed contracting, misuse of a license, false advertising, gross negligence, and other prohibited conduct may result in disciplinary action.

Reference Books

• National Electrical Code, NEC, 2020
  This technical exam-room reference covers services, feeders, branch circuits, motors, transformers, generators, grounding, bonding, raceways, conductor sizing, overcurrent protection, emergency systems, special occupancies, and electrical equipment.
• NFPA 72 - National Fire Alarm and Signaling Code, 2019 Edition
  This technical exam-room reference covers fire alarm fundamentals, initiating devices, notification appliances, supervising stations, pathways, emergency communications, power supplies, documentation, inspection, testing, maintenance, and system performance.
• Electrical Contractors Licensing Law, General Statutes Chapter 87, Article 4
  This closed-book study reference addresses Board authority, electrical contracting, license classifications, qualified individuals, license operation, prohibited conduct, enforcement, and statutory responsibilities. It is not allowed in the examination room.
• The Board’s Rules for the Implementation of the Electrical Contractors Licensing Law, Title 21, North Carolina Administrative Code, Chapter 18B
  This closed-book study reference covers examination qualifications, experience requirements, licensing procedures, project limitations, listed qualified individuals, financial responsibility, renewals, continuing education, and disciplinary requirements. It is not allowed in the examination room.
• NASCLA Contractors’ Guide to Business, Law, and Project Management: North Carolina Electrical Edition
  This closed-book study reference supports preparation involving business organization, contracts, estimating, financial management, project scheduling, employment practices, safety, insurance, recordkeeping, and risk management. It is not allowed in the examination room.

Exam Room Approved Books

• National Electrical Code, NEC, 2020
  Used for open-book questions involving electrical installations, calculations, conductors, services, feeders, motors, transformers, grounding, bonding, overcurrent protection, and special systems.
• NFPA 72 - National Fire Alarm and Signaling Code, 2019 Edition
  Used for open-book questions involving fire alarm systems, initiating devices, notification, pathways, power supplies, inspection, testing, maintenance, and system documentation.

Test Information and Study Materials

Build a study schedule around services, feeders, branch circuits, motors, transformers, grounding, bonding, conductor sizing, overcurrent protection, fire alarms, emergency systems, special occupancies, plans, licensing law, Board rules, and business practices.

Practice service, feeder, dwelling, commercial, motor, transformer, and voltage-drop calculations. Show each step and learn which NEC tables and demand factors apply.

Use the 2020 NEC for timed navigation involving conductor ampacity, correction factors, raceway fill, box sizing, grounding conductors, equipment ratings, transformer protection, motor circuits, and special-system requirements.

Use NFPA 72, 2019 Edition, to study system operation, fire alarm pathways, initiating devices, notification appliances, supervising stations, emergency communications, testing, inspection, maintenance, and documentation.

Practice interpreting lighting and power plans, panel schedules, one-line diagrams, risers, symbols, equipment notes, conductor callouts, and circuit information. Connect the plan details to the applicable NEC rule.

Study the licensing law and Board rules separately because they are not available during the examination. Focus on Unlimited experience requirements, supervisory statements, listed qualified individuals, license operation, financial responsibility, and prohibited conduct.

Review the NASCLA business reference for contracts, estimating, bidding, scheduling, accounting, employment practices, insurance, safety administration, project documentation, and risk management.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps North Carolina Unlimited Electrical Contractor candidates organize technical, licensing, and business references into a practical preparation structure.

Trade-focused review connects NEC requirements with real electrical contracting work, including services, feeders, motors, transformers, generators, grounding, bonding, overcurrent protection, fire alarm systems, and special installations.

Practice-oriented preparation helps candidates identify the electrical subject, select the correct reference, locate the governing provision, complete calculations, and interpret the requirement efficiently.

Reference-navigation practice builds familiarity with NEC articles, NFPA 72 chapters, definitions, tables, exceptions, annexes, and cross-references. These skills support more effective use of the approved books during the six-hour examination.

Plans-based preparation helps candidates interpret symbols, schedules, riser diagrams, installation notes, and equipment information while connecting those details to applicable Code provisions.

Closed-book study guidance helps candidates review the Electrical Contractors Licensing Law, Board rules, Unlimited experience requirements, supervisory responsibilities, financial requirements, and business-management subjects that cannot be referenced during the test.

Confidence-building study structure helps candidates divide a broad 100-question examination into manageable technical, regulatory, calculation, plans, and business sections.

No book package can guarantee examination passage or license issuance. Results depend on the candidate’s experience, qualifications, preparation, familiarity with the references, calculation skills, supervisory knowledge, and performance during the examination.

Frequently Asked Questions

What books are included in this package?

The package includes the 2020 National Electrical Code, NFPA 72 2019 Edition, Electrical Contractors Licensing Law, the Board’s electrical contracting rules, and the NASCLA Contractors’ Guide to Business, Law, and Project Management: North Carolina Electrical Edition.

Is the Unlimited examination open book?

Yes. Candidates may use the approved 2020 NEC and NFPA 72, 2019 Edition, during the examination.

Are the licensing law, Board rules, and NASCLA book allowed in the examination room?

No. Those references are included for closed-book study and are not allowed in the testing room.

How many questions are on the examination?

The North Carolina Unlimited Electrical Contractor examination contains 100 multiple-choice questions.

How much time is allowed?

Candidates have a maximum of six hours to complete the examination.

What score is required to pass?

A minimum score of 70 percent is required to pass.

How much experience is required?

Applicants must document at least 9,000 hours of qualifying experience, including at least 8,000 hours of primary experience.

Are supervisory statements required?

Yes. Unlimited applicants must submit statements from at least two people familiar with their ability to supervise and direct electrical installation work.

Is there a project-value limit?

No. The Unlimited classification permits electrical contracting projects regardless of project value.

Does the examination include calculations?

Yes. Preparation should include conductor, feeder, service, motor, transformer, grounding, raceway, box-fill, load, and voltage-drop calculations.

Does the examination include electrical plans?

The examination may require candidates to interpret lighting and power plans, panel schedules, riser diagrams, equipment information, and installation notes.

Does passing the exam automatically issue the license?

No. Passing satisfies the examination requirement, but the applicant must complete the Board’s licensing process and meet the applicable financial and listed qualified individual requirements.