Washington Equipment Repair Master Electrician 07E Book Package

Prepare for the Washington Equipment Repair Master Electrician examination with a focused reference package built around the electrical code, Washington electrical law, and state administrative rules used for the 07E Equipment Repair specialty. This package includes the Revised Code of Washington (RCW) Chapter 19.28, Washington Administrative Code (WAC) Chapter 296-46B, and the National Electrical Code, NEC, 2020 Edition.

Washington officially identifies this specialty as 07E Equipment Repair. The classification covers servicing, maintaining, repairing, or replacing qualifying utilization equipment. Washington law provides a detailed definition of the utilization equipment covered by this specialty, including how it is constructed, listed or evaluated, connected to electrical power, and limited in voltage.

The Washington 07E Master Electrician examination combines National Electrical Code knowledge, electrical theory, and Washington electrical laws and rules. Candidates should be prepared for questions involving general NEC requirements, wiring and protection, overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors and related equipment, hazardous locations, special occupancies, special conditions, general trade knowledge, and the Washington-specific scope of Equipment Repair work.

Washington electrical examinations are open book. Approved references may be used in the testing center, making effective reference navigation an important part of preparation. Candidates should become comfortable determining whether a question is controlled by the NEC, RCW Chapter 19.28, or WAC Chapter 296-46B and then finding the applicable provision efficiently.

The 07E specialty has a broader voltage range than several of Washington's other restricted maintenance specialties. Qualifying utilization equipment may be connected as a single unit to a single electrical power source of up to 600 volts. A separate single source of electrical control power may be up to 250 volts. Those ratings do not make the specialty an unrestricted electrical classification; the equipment must still meet Washington's definition of qualifying utilization equipment, and the work remains subject to specific limitations.

This book package brings together three essential references for organized preparation. The NEC provides technical electrical requirements, RCW Chapter 19.28 establishes Washington electrical law and the statutory 07E scope, and WAC Chapter 296-46B contains the state's detailed specialty, examination, certification, contractor, permit, inspection, supervision, and electrical installation rules.

What You Get

• Revised Code of Washington (RCW) Chapter 19.28
  Washington electrical law governing electricians, Master Electricians, electrical contractors, certification, installations, enforcement, and the statutory scope and definitions for Equipment Repair work.
• Washington Administrative Code (WAC) Chapter 296-46B
  Washington's detailed electrical safety, licensing, certification, specialty-scope, examination, contractor, supervision, permit, inspection, and installation rules. This reference recognizes Equipment Repair as specialty classification 07E.
• National Electrical Code, NEC, 2020 Edition
  The NEC edition used for the Washington electrical examination program covered by this package. It provides technical requirements for wiring and protection, overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, hazardous locations, special occupancies, and special conditions.

Exam Details

The Washington 07E Equipment Repair Master Electrician examination contains two required sections: NEC & Theory and Washington Codes.

• NEC & Theory: Approximately 34 questions
• Time Allowed for NEC & Theory: 2 hours
• Washington Codes: Approximately 20 questions
• Time Allowed for Washington Codes: 1 hour
• Total Questions: Approximately 54 questions across both sections
• Total Testing Time: Approximately 3 hours across both sections
• Passing Score: 70% or greater on each required examination section
• Exam Type: Open book
• Testing Provider: PSI
• Primary Code Reference: National Electrical Code, NEC, 2020 Edition

The published NEC & Theory outline includes approximately one question from NEC Article 90, two from NEC Articles 100 through 110, one involving wiring and protection, four involving overcurrent protection, four involving grounding and bonding, six involving wiring methods, two involving electrical equipment, four involving motors, HVAC equipment, generators and transformers, one involving hazardous locations, one involving special occupancies, two involving special conditions, and approximately six questions involving general trade knowledge and electrical theory.

The Washington Codes section contains approximately 20 questions involving Washington electrical laws and administrative rules. Candidates should prepare for Equipment Repair scope, Master Electrician requirements, contractor responsibilities, examinations, certification, permits, inspections, and limitations on the electrical work permitted under the 07E specialty.

Open Book Test

The Washington Equipment Repair Master Electrician examination is an open book test. Approved reference materials may be brought into the testing center under Washington electrical examination rules.

The 2020 National Electrical Code is permitted during the examination. Permanent index tabs are acceptable, while removable tabs, sticky notes, and handwritten notes are prohibited. Original copyrighted reference materials may contain highlighting, underlining, and permanent index tabs when they otherwise comply with examination requirements.

Printed copies of RCW Chapter 19.28 and WAC Chapter 296-46B may also be used during testing. Printed Washington electrical laws and rules should be hole-punched and placed in a three-ring binder.

Because the 07E NEC & Theory section contains approximately 34 questions in two hours, candidates should develop efficient navigation habits. Wiring methods, overcurrent protection, grounding and bonding, motors, electrical equipment, and general theory represent important areas of the examination.

Reference familiarity is equally important for Washington Codes. The 07E scope is defined through both WAC Chapter 296-46B and RCW 19.28.095, so candidates should know how to locate the definition of qualifying utilization equipment, permitted repair activities, voltage limits, supply-whip provisions, and work that is specifically excluded.

Licensing Steps

Washington Equipment Repair Master Electrician certification is administered through the Washington State Department of Labor & Industries. A candidate for a specialty Master Electrician certificate must first hold the corresponding Washington specialty electrician certificate.

1. Obtain the 07E Equipment Repair Electrician certificate. The specialty Master Electrician pathway begins with certification in the corresponding Equipment Repair specialty.
2. Hold the specialty certificate for at least two years. Washington requires an applicant for a master specialty electrician examination to have possessed a valid certificate in the specialty being applied for for two years.
3. Apply for the Master Electrician examination. Submit the applicable Master Electrician examination application to Washington Labor & Industries.
4. Receive L&I examination approval. Labor & Industries reviews the application and verifies that the qualification requirements have been met.
5. Prepare for NEC & Theory. Study the 2020 NEC, emphasizing wiring methods, grounding and bonding, overcurrent protection, motors, equipment, special occupancies, and electrical theory.
6. Prepare for Washington Codes. Review RCW Chapter 19.28 and WAC Chapter 296-46B, especially RCW 19.28.095 and the 07E specialty provisions.
7. Schedule the examination through PSI. Follow the scheduling instructions provided after L&I approval.
8. Take both required examination sections. Complete NEC & Theory and Washington Codes.
9. Pass each required section. Washington requires a score of at least 70% on every required examination section.
10. Complete the certification process. Follow Washington Labor & Industries requirements for issuance of the 07E Equipment Repair Master Electrician certificate.

State Requirements

Washington identifies Equipment Repair as electrical specialty classification 07E. To qualify for the specialty Master Electrician examination, an applicant must have possessed a valid Washington Equipment Repair specialty electrician certificate for at least two years.

The underlying 07E Equipment Repair Electrician certification requires 2,000 hours of qualifying work experience. A trainee may become eligible for the 07E specialty electrician examination after completing at least 1,000 hours of qualifying experience.

Until the specialty examination is successfully completed, the trainee must work under 100 percent supervision. Washington provides a modified supervision pathway after successful completion of the specialty examination while the trainee completes the remaining hours required for full certification.

The statutory scope of Equipment Repair involves servicing, maintaining, repairing, or replacing utilization equipment or related wiring, appliances, devices, or equipment as permitted by Washington law and rule.

For the 07E specialty, qualifying utilization equipment must be self-contained on a single skid or frame and factory built to standardized sizes or types. It must also be listed or field evaluated by an approved laboratory or otherwise approved by the department under applicable Washington rules.

The utilization equipment must be connected as a single unit to a single source of electrical power limited to a maximum of 600 volts. The equipment may also be connected to a separate single source of electrical control power limited to a maximum of 250 volts.

Washington's statutory definition excludes devices used for occupant space heating in industrial, commercial, hospital, educational, public, private commercial, and other covered buildings from the utilization equipment included within this specialty.

The 07E specialty includes the like-in-kind replacement of qualifying equipment when the same unmodified electrical circuit is used to supply the replacement equipment.

It also includes like-in-kind replacement or repair of remote control components that are integral to the operation of the qualifying utilization equipment and like-in-kind replacement or repair of electrical components located within the equipment.

The specialty may disconnect, replace, and reconnect low-voltage control wiring and line-voltage supply whips not exceeding six feet in length, provided there are no modifications to the characteristics of the branch circuit.

The Equipment Repair specialty does not authorize the installation, repair, or modification of wiring interconnecting equipment and remote components, branch-circuit conductors, services, feeders, panelboards, disconnect switches, motor control centers, remote magnetic starters or contactors, or raceway and conductor systems that interconnect multiple pieces of equipment or other electrical components.

The specialty also does not include work that provides electrical feeds into a power distribution unit or installation of conduits and raceways.

Electrical work governed by the NEC articles covering classified hazardous locations is outside the 07E scope, with the statutory exception for qualifying electrical work in sewage pumping stations.

Washington rules also specify that the Equipment Repair specialty cannot perform plumbing work regulated under Washington plumbing law.

A specialty Master Electrician may work with the tools of the electrical trade within the applicable specialty and may serve as a designated master for an electrical contractor when the contractor's licensing and assignment requirements are satisfied. When assigned to a contractor, the Master Electrician accepts responsibility for helping ensure that the contractor complies with applicable Washington electrical laws and rules.

Reference Books

• Revised Code of Washington (RCW) Chapter 19.28
  This reference contains Washington electrical statutes governing electricians, Master Electricians, contractors, certification, electrical installations, and Equipment Repair scope. RCW 19.28.095 specifically addresses Equipment Repair work and the definition of qualifying utilization equipment.
• Washington Administrative Code (WAC) Chapter 296-46B
  This reference contains Washington rules governing specialty classifications, work experience, supervision, examinations, Master Electrician certification, contractors, permits, inspections, and the 07E Equipment Repair specialty.
• National Electrical Code, NEC, 2020 Edition
  The NEC provides technical requirements for wiring and protection, overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, hazardous locations, special occupancies, special conditions, and related electrical work.

Candidates should study all three references as a coordinated set. Technical installation and equipment questions generally require NEC knowledge, while the legal scope of Equipment Repair work, Master Electrician eligibility, and Washington certification requirements require familiarity with RCW Chapter 19.28 and WAC Chapter 296-46B.

Exam Room Approved Books

• National Electrical Code, NEC, 2020 Edition
  The 2020 NEC is permitted during Washington electrical examinations. Permanent index tabs, highlighting, and underlining are allowed under applicable examination rules, while handwritten notes, removable tabs, and sticky notes are prohibited.
• Revised Code of Washington (RCW) Chapter 19.28
  Printed copies of Washington electrical law may be used during testing when prepared according to Labor & Industries examination requirements.
• Washington Administrative Code (WAC) Chapter 296-46B
  Printed copies of Washington electrical rules may be used during the examination when prepared according to the applicable testing requirements.

Preparing with the same references that will be available during the examination can help candidates become comfortable with article organization, definitions, tables, specialty provisions, and Washington Equipment Repair requirements.

Test Information and Study Materials

Wiring Methods: Wiring methods represent one of the larger knowledge areas on the 07E Master Electrician examination. Review raceways, cables, conductors, boxes, fittings, flexible connections, support requirements, protection, and equipment wiring methods.

Overcurrent Protection: Study circuit breakers, fuses, equipment protection, conductor protection, branch-circuit ratings, and overcurrent requirements affecting utilization equipment.

Grounding and Bonding: Review grounding and bonding of equipment, equipment grounding conductors, enclosures, continuity, grounding methods, and related requirements for equipment supplied at different voltage levels.

Motors and Related Equipment: Equipment Repair work frequently involves motor-driven utilization equipment. Review motors, motor controllers, overload protection, disconnecting means, generators, transformers, and related equipment requirements.

Electrical Equipment: Study requirements involving flexible cords, switches, receptacles, disconnecting means, equipment wiring, transformers, capacitors, storage batteries, and other electrical components associated with utilization equipment.

Hazardous Locations: The examination includes hazardous-location knowledge. The 07E specialty generally excludes work governed by the identified classified-location NEC articles, except for the statutory exception involving qualifying sewage pumping station work.

Special Occupancies and Special Conditions: Review applicable NEC requirements for specialized occupancies and conditions that may affect equipment installations and maintenance work.

General Trade Knowledge and Theory: Practice voltage, current, resistance, power, Ohm's law, series and parallel circuits, motor calculations, basic electrical troubleshooting, and other trade calculations.

07E Utilization Equipment Definition: Know the requirements that equipment be self-contained on a single skid or frame, factory built to standardized sizes or types, appropriately listed, evaluated, or approved, and connected as a single unit to a qualifying source of power.

Voltage Limits: Remember that qualifying utilization equipment may be connected to a single power source up to 600 volts and a separate control-power source up to 250 volts.

Permitted Repair Work: Review like-in-kind equipment replacement, internal component replacement or repair, integral remote-control component work, and the six-foot supply-whip allowance.

Excluded Work: Understand the limits on branch-circuit conductors, feeders, services, panelboards, disconnect switches, motor control centers, remote starters and contactors, interconnecting wiring, conduits, raceways, and classified-location work.

Master Electrician Responsibilities: Study eligibility, contractor assignment, certification, examinations, permits, inspections, and the compliance responsibilities associated with serving as a designated specialty Master Electrician.

A useful study method is to identify the type of question before beginning a reference lookup. A question about grounding, motors, or wiring methods will generally point toward the NEC. A question about what an Equipment Repair electrician may legally perform will often require RCW 19.28.095 or WAC Chapter 296-46B.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Washington Equipment Repair Master Electrician candidates organize preparation around the three core references included in this package: the 2020 National Electrical Code, RCW Chapter 19.28, and WAC Chapter 296-46B.

The package supports trade-focused review of wiring methods, overcurrent protection, grounding and bonding, electrical equipment, motors, electrical theory, specialty scope, Master Electrician responsibilities, and Washington electrical laws and rules.

1 Exam Prep encourages practice-oriented preparation for an open-book testing environment. Candidates can strengthen reference-navigation skills by identifying the subject of each question, selecting the appropriate reference, locating the controlling provision, and applying it efficiently.

Experienced equipment-repair electricians often bring significant practical troubleshooting, motor, equipment, and maintenance knowledge to the examination. Structured preparation helps connect that field experience with the precise NEC and Washington requirements used to regulate the work.

Washington-specific study is especially important for 07E because the specialty depends on a detailed statutory definition of utilization equipment. Understanding what equipment qualifies, what voltage limitations apply, which repair activities are permitted, and which building-wiring activities remain outside the scope can strengthen preparation for the Washington Codes section.

The goal is to combine practical Equipment Repair experience with organized code study, reference-navigation practice, trade-focused review, and a stronger understanding of Washington electrical requirements. This Washington Equipment Repair Master Electrician 07E Book Package provides the core reference materials needed to support that preparation.

Frequently Asked Questions

What is the official Washington classification for Equipment Repair?

Washington identifies Equipment Repair as electrical specialty classification 07E.

What books are included in this package?

This package includes RCW Chapter 19.28, WAC Chapter 296-46B, and the 2020 National Electrical Code.

Is the Washington 07E Master Electrician examination open book?

Yes. Washington electrical examinations are open book under the applicable testing rules.

How many questions are on the 07E Master Electrician examination?

The published examination outline lists approximately 34 NEC & Theory questions and 20 Washington Codes questions, for approximately 54 questions total.

How much testing time is allowed?

The NEC & Theory section allows approximately 2 hours, and the Washington Codes section allows approximately 1 hour.

What score is required to pass?

Washington requires a score of at least 70% on each required examination section.

How long must I hold the 07E Electrician certificate before taking the Master examination?

An applicant for the specialty Master Electrician examination must have possessed a valid Washington specialty electrician certificate in the applicable specialty for at least two years.

How much experience is required for full 07E Electrician certification?

Full Washington 07E Equipment Repair Electrician certification requires 2,000 hours of qualifying work experience.

When can a 07E trainee become eligible for the specialty electrician examination?

A trainee may become eligible for the 07E examination after completing at least 1,000 hours of qualifying work experience.

What supervision applies before passing the 07E examination?

The trainee must remain under 100 percent supervision until successfully completing the applicable specialty examination.

What voltage limit applies to qualifying 07E utilization equipment?

Qualifying utilization equipment may be connected as a single unit to a single electrical power source limited to a maximum of 600 volts.

Can 07E equipment have a separate control-power source?

Yes. Qualifying equipment may also be connected to a separate single source of electrical control power limited to a maximum of 250 volts.

Can a 07E Electrician replace qualifying equipment?

Yes. The specialty permits like-in-kind replacement of qualifying utilization equipment when the same unmodified electrical circuit supplies the replacement.

Can a 07E Electrician repair components inside the equipment?

Yes. The scope includes like-in-kind replacement or repair of electrical components within qualifying utilization equipment and qualifying integral remote-control components.

Can a 07E Electrician reconnect supply whips?

Yes. The specialty permits disconnection, replacement, and reconnection of qualifying low-voltage control and line-voltage supply whips not exceeding six feet when branch-circuit characteristics are not modified.

Can a 07E Electrician install new feeders or branch circuits?

No. The Equipment Repair specialty does not authorize installation, repair, or modification of services, feeders, branch-circuit conductors, panelboards, disconnect switches, motor control centers, or other excluded building-wiring systems.

Can a 07E Electrician install conduit or raceway systems?

The 07E scope does not include installation of conduits and raceways or work providing electrical feeds into a power distribution unit.

Can I use the 2020 NEC during the examination?

Yes. The Washington electrical examination program covered by this package permits the 2020 National Electrical Code.

Can I bring RCW 19.28 and WAC 296-46B into the examination?

Yes. Printed copies of both Washington electrical references may be used when prepared according to Labor & Industries examination requirements.

Who administers the Washington 07E Master Electrician examination?

Washington electrical examinations are administered through PSI after the applicable examination approval through Washington Labor & Industries.

What should I focus on while studying?

Focus on wiring methods, overcurrent protection, grounding and bonding, motors, electrical equipment, general electrical theory, the statutory definition of utilization equipment, 07E scope limitations, Master Electrician responsibilities, and Washington electrical laws and rules.