ICC Low Voltage Electrician - G21-N Highlighted & Tabbed Book Package

The ICC Low Voltage Electrician - G21-N Highlighted & Tabbed Book Package is designed for candidates preparing for the ICC Low Voltage Electrician G21-N exam using organized, exam-focused electrical references. This package includes the NFPA 70 - National Electrical Code, 2017 edition and Ugly's Electrical References, prepared with highlighting and tabs to support faster navigation during study and open book exam practice.

The G21-N Low Voltage Electrician exam is intended for candidates who need to demonstrate knowledge of low-voltage electrical work, wiring methods, electrical safety, conductors, cables, grounding and bonding, raceways, boxes, communications systems, power-limited circuits, fire alarm-related wiring concepts, signaling circuits, and practical electrical code application. Candidates preparing for this exam should be comfortable using the National Electrical Code and electrical reference material to locate the correct requirement and apply it to trade-level installation and field scenarios.

This highlighted and tabbed book package helps candidates work directly from the listed references. Tabs can make major NEC articles and common electrical topics easier to locate, while highlighting helps draw attention to important code provisions during preparation. For an open book exam, organization matters. The goal is not simply to bring books into the exam room. The goal is to understand where low-voltage requirements, wiring method rules, grounding provisions, conductor information, and electrical tables are located and how to apply the correct reference under timed conditions.

The ICC Low Voltage Electrician - G21-N exam may be used by licensing boards, jurisdictions, agencies, municipalities, and employers to evaluate low-voltage electrical trade knowledge. Candidates may pursue this exam for licensing support, jurisdictional qualification, career advancement, trade recognition, or professional development. This highlighted and tabbed package supports preparation by giving candidates organized references for studying low-voltage electrical requirements, NEC navigation, field installation practices, and practical trade calculations connected to the listed exam materials.

Please allow up to 15 days for tabbed and highlighted book package orders.

What You Get

• Highlighted & Tabbed NFPA 70 - National Electrical Code, 2017 edition — Prepared to support study of electrical code requirements, including definitions, wiring methods, conductors, cables, boxes, raceways, grounding and bonding, communications systems, power-limited circuits, signaling circuits, special equipment, tables, and code exceptions.
• Highlighted & Tabbed Ugly's Electrical References — Prepared to support quick access to electrical formulas, calculations, conductor information, conversion tables, conduit and raceway information, motor data, symbols, and field reference material commonly used by electrical workers.
• Study-Focused Book Preparation — Tabs and highlighting are added to support faster reference use and better organization while preparing for the ICC Low Voltage Electrician - G21-N exam.
• Low Voltage Electrical Reference Support — The included references support study of NEC navigation, low-voltage wiring, electrical safety, grounding and bonding, communications wiring, power-limited circuits, cabling methods, field calculations, and trade-level code application.
• Processing Notice — Please allow up to 15 days for tabbed and highlighted book package orders.

Exam Details

The ICC Low Voltage Electrician - G21-N exam is a trade qualification exam focused on low-voltage electrical knowledge. It evaluates whether a candidate can understand, locate, and apply electrical code provisions and trade reference information to practical low-voltage installation scenarios. The exam is multiple choice and is based on approved references for the selected exam cycle.

Candidates should prepare for a timed, reference-based exam that requires efficient use of the listed books. The exam tests NEC knowledge, low-voltage wiring awareness, reference navigation, electrical safety concepts, basic trade calculations, and the ability to apply code requirements to installation and field conditions. Candidates should be ready to answer questions involving wiring methods, conductors, cables, boxes, raceways, grounding and bonding, communications circuits, power-limited circuits, fire alarm-related wiring, signaling circuits, cable support, separations, permitted uses, and practical electrical reference information.

Major study areas may include electrical definitions, general installation requirements, wiring and protection, wiring methods and materials, equipment for general use, grounding and bonding, low-voltage circuits, communications systems, power-limited circuits, Class 1, Class 2, and Class 3 circuit concepts, fire alarm circuit provisions, cable types, raceway fill concepts, conductor identification, boxes, supports, and electrical tables. Candidates should also understand how to use Ugly's Electrical References for quick access to calculations, conversions, conductor data, raceway information, and field reference material.

The National Electrical Code portion of the exam may require candidates to locate requirements related to conductor installations, cable wiring methods, raceways, boxes, fittings, splices, terminations, supports, grounding and bonding, overcurrent protection concepts, low-voltage system wiring, fire alarm wiring, communications wiring, and installation limitations. Questions may describe a low-voltage electrical condition and ask which code requirement applies.

Ugly's Electrical References supports preparation by helping candidates review commonly used electrical formulas, conductor information, conduit and raceway data, electrical symbols, conversion information, wiring data, and practical field references. Candidates should become familiar with how this reference is organized so they can locate useful information quickly during study and exam practice.

Because the exam is reference-based, candidates should study directly from the 2017 National Electrical Code and Ugly's Electrical References. Field experience can be valuable, but the correct exam answer is the one supported by the approved reference. Candidates should practice reading full sections, checking related definitions, using tables accurately, reviewing notes and exceptions, and applying requirements exactly as written.

Open Book Test

The ICC Low Voltage Electrician - G21-N exam is an open book test. Candidates are expected to use approved references during the exam, but open book testing still requires serious preparation. The books are valuable only when the candidate knows how to navigate them quickly and accurately.

Open book testing rewards organization, familiarity, and speed. Candidates should become comfortable using the table of contents, index, article structure, definitions, tables, notes, exceptions, and cross-references in the 2017 National Electrical Code. Candidates should also practice using Ugly's Electrical References for calculations, electrical formulas, conductor data, raceway information, and quick trade reference material. Highlighting and tabs can help organize important sections, but the tools work best when paired with repeated practice.

Candidates should practice locating provisions under timed conditions and using each reference for the type of question being asked. A wiring method question may require the National Electrical Code. A calculation or quick-reference question may require Ugly's Electrical References. A low-voltage cable question may require checking cable type, permitted use, support, separation, and installation requirements. Some questions may require candidates to review a definition, check a table note, compare multiple sections, or locate a related article before selecting an answer.

Low-voltage electrical questions can involve several connected requirements. A communications wiring question may require checking article scope, cable type, support, installation location, and separation from other conductors. A power-limited circuit question may require reviewing circuit classification, permitted wiring methods, conductor requirements, or installation limitations. A grounding and bonding question may require identifying which equipment or system components must be connected and how the NEC addresses the condition.

Candidates should follow current exam rules for approved references, tabs, highlighting, notes, loose papers, and materials allowed in the testing room. Open book does not mean unlimited materials. A strong study plan uses the same reference books that will be used on exam day and builds comfort with locating information under timed conditions.

Licensing Steps

The ICC Low Voltage Electrician - G21-N exam may be used as part of an electrical licensing, low-voltage trade licensing, contractor licensing, or jurisdictional qualification process. The exam itself does not issue a license, business registration, permit privilege, employment authorization, or government approval. Licensing requirements are controlled by the state, county, city, municipality, agency, board, or jurisdiction requiring the exam.

A typical path begins by confirming that the G21-N Low Voltage Electrician exam is the correct exam for the license classification or qualification being pursued. The licensing authority may specify the required exam, accepted references, application documents, trade experience, supervised work history, business registration, insurance, bonding, financial responsibility, background requirements, continuing education, or additional law and business exams.

After confirming the requirement, candidates generally prepare using the approved references, submit any required application to the licensing authority, receive approval when required, register for the exam through the required testing process, take the exam, and submit proof of passing when requested. Some licensing authorities require candidates to pass both a trade exam and a business or law exam before a license or qualification can be issued.

Candidates pursuing low-voltage electrical recognition should understand that licensing is separate from exam preparation. Passing the G21-N exam may satisfy one testing requirement, but the licensing authority determines whether the candidate meets all qualifications. This book package supports exam preparation using the listed references, but candidates must complete all licensing steps required by the applicable authority.

State Requirements

Low-voltage electrician requirements vary by state, county, city, municipality, licensing board, electrical board, and local authority. Some jurisdictions use ICC exams as part of the licensing process. Others require state-specific exams, local exams, separate business and law exams, documented trade experience, supervised work history, financial responsibility, insurance, bonding, continuing education, business registration, or additional approvals.

The G21-N Low Voltage Electrician exam may be accepted in one jurisdiction and not accepted in another. Some licensing authorities require a specific ICC exam code, while others use their own electrical trade exam or a different NEC edition. The authority having jurisdiction determines which exam applies, which reference books are allowed, what passing score is required, and what additional requirements must be completed before a license or qualification is issued.

Candidates should check with the licensing board, electrical board, contractor board, building department, municipality, county, state agency, or employer connected to the license or qualification they are pursuing. That organization determines whether the ICC Low Voltage Electrician - G21-N exam applies and how the exam fits into the full licensing process.

Reference Books

• NFPA 70 - National Electrical Code, 2017 edition
  The 2017 National Electrical Code supports preparation for electrical code topics that may appear on the ICC Low Voltage Electrician - G21-N exam. Candidates should study definitions, general installation requirements, wiring and protection, wiring methods and materials, grounding and bonding, boxes, raceways, cables, communications systems, power-limited circuits, fire alarm circuits, signaling circuits, special equipment, tables, notes, and exceptions. In this package, the book is highlighted and tabbed to support organized study and faster reference navigation.
• Ugly's Electrical References
  Ugly's Electrical References supports preparation with practical electrical reference information, including formulas, calculations, conductor data, raceway information, conduit fill support, conversion tables, electrical symbols, wiring data, and field reference material. Candidates should use this book to strengthen quick-reference skills and support electrical calculation practice. In this package, the book is highlighted and tabbed to support organized study and faster reference navigation.

Test Information and Study Materials

Effective preparation for the ICC Low Voltage Electrician - G21-N exam should begin with reference navigation. Candidates should learn the structure of the 2017 National Electrical Code, including article organization, the index, definitions, tables, notes, exceptions, and cross-references. They should also become familiar with Ugly's Electrical References so formulas, conductor information, conversion tables, and field data can be located quickly.

Electrical definitions are an important starting point. NEC questions often depend on the exact meaning of a defined term. Candidates should practice looking up words related to circuits, conductors, equipment, grounding, bonding, raceways, cables, communications, power-limited circuits, premises wiring, and electrical installations. A strong understanding of definitions helps candidates understand what a question is asking before selecting a section or table.

General installation requirements should receive focused study. Candidates should review workmanship, equipment listing and labeling, installation instructions, conductor identification, mechanical execution of work, protection from physical damage, access, working space concepts, and general electrical safety principles. Low-voltage work may operate at lower voltage levels, but installation rules and safe practices still matter.

Wiring methods and materials are central to G21-N preparation. Candidates should study cable types, raceways, boxes, fittings, conductor support, securing, protection from physical damage, permitted locations, prohibited uses, splices, terminations, and installation limitations. Low-voltage electrical work often involves selecting and installing the correct cable or raceway method for the environment and system type.

Grounding and bonding should be studied carefully. Candidates should review grounding conductor concepts, bonding requirements, equipment grounding, grounding electrodes where applicable, bonding jumpers, raceway continuity, and the purpose of grounding and bonding in electrical systems. Questions may describe a system or equipment condition and ask which grounding or bonding requirement applies.

Communications systems are an important low-voltage topic. Candidates should study communications circuit requirements, cable types, separation from other conductors, support, installation in buildings, protection, grounding and bonding where applicable, and permitted wiring methods. Communications wiring questions may require careful navigation because the correct article depends on the system being described.

Power-limited circuits should also receive careful attention. Candidates should review Class 1, Class 2, and Class 3 circuits, power-limited cable types, permitted wiring methods, separation requirements, support, substitution rules where applicable, and installation limitations. These topics are important for low-voltage electricians because many control, signaling, and communication systems fall under power-limited or related NEC provisions.

Fire alarm and signaling circuit concepts should be included in the study plan. Candidates should review fire alarm circuit wiring, cable types, power-limited fire alarm circuits, non-power-limited fire alarm circuits, installation requirements, separation, support, and identification. Exam questions may describe a fire alarm-related wiring condition and ask which code provision controls the installation.

Boxes, raceways, and conductor fill concepts should be practiced using both the NEC and Ugly's Electrical References. Candidates should review how conductors are installed in boxes and raceways, how raceway information is organized, and how conductor and conduit data may be used in electrical calculations. Ugly's Electrical References can help reinforce practical calculation and lookup skills.

Electrical calculations and quick-reference topics should be reviewed regularly. Candidates should practice using formulas, conversions, conductor data, raceway information, voltage drop concepts where applicable, Ohm's law relationships, power formulas, and basic electrical math. Low-voltage candidates may not need the same calculation depth as a full power distribution exam, but basic electrical math and reference skills remain useful.

Definitions and article scope should be reviewed before answering code questions. Many NEC articles begin with scope and purpose language that identifies what the article covers. Candidates should learn to check whether they are in the correct article before applying a requirement. This is especially important in low-voltage topics because communications, signaling, fire alarm, data, control, and power-limited wiring can fall under different provisions.

Timed practice is important for this exam. Candidates should practice answering questions while using the highlighted and tabbed references in a realistic way. Some questions may be answered quickly from a known section, while others may require checking a table, reviewing definitions, comparing multiple sections, or switching between references. The ability to move efficiently through the books can make a significant difference during open book testing.

A strong study plan combines code reading, topic-based review, reference navigation, and exam-style questions. Candidates should study one subject at a time, locate the related NEC sections, review the applicable tables and definitions, and practice applying reference language to trade scenarios. Field experience is valuable, but exam success depends on using the listed references accurately and efficiently.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps candidates prepare for the ICC Low Voltage Electrician - G21-N exam with organized study support, trade-focused review, and practical preparation built around the references used for exam study. Low-voltage electrical exams can be challenging because candidates must understand NEC navigation, cable types, wiring methods, grounding and bonding, communications systems, power-limited circuits, fire alarm wiring, calculations, tables, and timed reference use at the same time.

This highlighted and tabbed book package helps candidates approach the exam with better organization. Tabs can make major topics easier to locate, and highlighting can help draw attention to important code sections and reference information during study. When used with a consistent study plan, these tools can help candidates build familiarity with the books and reduce time spent searching during practice.

1 Exam Prep supports students by emphasizing reference navigation, exam-style thinking, low-voltage topic organization, electrical code review, table practice, calculation support, code terminology, and confidence-building study structure. Candidates can focus on important exam areas such as wiring methods, raceways, conductors, boxes, grounding and bonding, communications wiring, power-limited circuits, fire alarm circuit provisions, definitions, tables, formulas, and exceptions.

Preparation should be realistic and consistent. 1 Exam Prep does not guarantee a passing score, license approval, business approval, employment, earnings, or a specific exam outcome. Success depends on the candidate’s study effort, electrical knowledge, reference skills, test performance, and the requirements of the licensing authority. A structured preparation system can help candidates study with purpose and approach the exam with greater confidence.

FAQ Section

What is included in the ICC Low Voltage Electrician - G21-N Highlighted & Tabbed Book Package?

This package includes NFPA 70 - National Electrical Code, 2017 edition and Ugly's Electrical References. The books are highlighted and tabbed to support organized study and faster reference navigation.

How long should I allow for highlighted and tabbed book package orders?

Please allow up to 15 days for tabbed and highlighted book package orders.

Is the ICC Low Voltage Electrician - G21-N exam open book?

Yes. The ICC Low Voltage Electrician - G21-N exam is an open book test. Candidates should follow current testing rules for approved references, tabs, highlighting, notes, and materials allowed in the exam room.

What reference books are included for G21-N exam preparation?

This package includes the 2017 National Electrical Code and Ugly's Electrical References. These references support study of low-voltage wiring, NEC requirements, grounding and bonding, communications systems, power-limited circuits, and practical electrical reference information.

What topics should I study for the G21-N Low Voltage Electrician exam?

Major preparation areas may include NEC definitions, wiring methods, conductors, cables, raceways, boxes, grounding and bonding, communications systems, power-limited circuits, fire alarm circuit concepts, signaling circuits, tables, calculations, and code exceptions.

Why is Ugly's Electrical References included in this package?

Ugly's Electrical References supports preparation with quick access to electrical formulas, conductor information, raceway data, conversions, symbols, and practical field reference material that can help candidates build calculation and lookup skills.

Why are highlighted and tabbed books helpful for this exam?

Highlighted and tabbed books help candidates organize important sections and locate common exam topics more efficiently. This can be useful during study and timed open book practice.

Does this package include an online course?

This product is a highlighted and tabbed book package. It includes the listed references and does not include an online course unless a separate course or package is specifically purchased.

Will passing the G21-N exam automatically give me a low voltage electrician license?

No. Passing the exam may support a licensing or qualification requirement, but licensing is controlled by the applicable state, county, city, municipality, agency, or board. Candidates must complete all requirements issued by the licensing authority.

How should I study with this book package?

Study by topic, practice using the tabs and highlighted sections, review NEC low-voltage requirements, and complete timed practice questions. Focus on learning where information is located and how to apply the references accurately during an open book exam.