Learn and correctly apply the National Electrical Code the smart way. Mike Holt has taught thousands of electricians and engineers how to apply the NEC, and now he can teach you. And we have the National Electrical Code in softbound and spiral formats, plus tabs and other aids.
If you're doing electrical work, you need be able to understand and correctly apply the NEC. Why:
Drawings can easily contain code violations. You need to check the drawings before doing the work. That protects your company and it protects you.
When a question of "Can we do it this way?" arises, you'll be able to find the answer yourself.
If a question arises about something you did, you can look up the Code requirement rather than taking someone else's word for it.
Your NEC needs to be current. Why:
The NEC is revised every three years. This is the Code cycle. Things change.
You may miss a requirement, and thus commit a violation.
You may do something in a more time-consuming or costly way than the NEC actually requires.
The NEC is divided into nine Chapters. The first four apply to all electrical installation. The last five apply to special cases. There, that makes it easier to work with already!
Here are ten tips to help you understand and correctly apply the NEC:
You can see the National Electrical Code is laid it out in Articles and Chapters. Each Chapter contains related Articles. When making your way through the Code, think of the related topics you need to consider, then go to the Chapter that contains those topics. Inside that Chapter, you merely need to find the Article that addresses your topic.
Article 90 is the introduction. It lays the foundation for understanding the National Electrical Code's scope and purpose, and where it fits into your work.
Chapter 1, Article 100 covers definitions. Did you know Code experts often resolve National Electrical Code misunderstandings by simply using excerpts from Article 100? Become familiar with this Chapter, and you'll be ahead of the game. Try it!
Chapter 2 covers wiring and protection, as well as grounding. Article 250 is "the grounding chapter." Article 210 covers branch circuits, Article 215 covers feeders, Article 220 covers calculations, Article 230 covers servicesódo you see the pattern, here?
Chapters 2, 3, and 4 are where the typical electrician needs to focus--especially if studying for a National Electrical Code exam.
Chapters 5, 6, 7 and 8 apply to nontypical applications, or specialized areas of electrical work. You don't need to study these for a National Electrical Code exam.
Chapter 9 has your tables and examples. Spend some time becoming familiar with these and how to apply them!
If you are doing non-specialized work, make a point of studying Chapters 1, 2, 3, and 4. Browse Chapter 9 to become familiar with what is in it, and work through the examples.
For determining voltage drop and wiring sizes, work with Chapter 9, Tables 8 and 9--mostly Table 9 for a National Electrical Code exam.
To make best use of the Tables in Chapter 9, read the "Notes to Tables" before working with the Tables. Itís amazing how many people end up going to these notes after hours of misusing the Tables.
When calculating your ROI for this purchase, don't forget to consider the cost of fixing mistakes due to NEC violations you could have prevented.
Code Compliance Tips
Obviously, you need to know what the regulations and requirements are. That's why you should buy this standard.
As you apply a requirement, look at the principle behind it. If you satisfy the principle, you won't be subject to "interpretation revisions" being forced on you later.
To understand a particular provision, understand its context. So rather than look up a sentence and try to parse out its meaning, look at the entire code and how it's arranged. Where does the provision fit within this framework, and what is that chapter or section trying to accomplish?
Remember that members of all code-making bodies write the codes in respect to the laws of physics, and to the body of knowledge in the respective trade or skill area addressed by the code. If you also understand these things, then you will be able to more properly apply a given code requirement.
Codes are nearly always written as minimum requirements. You may need to go beyond the code requirements for optimum operational efficiency or to satisfy engineering requirements based on best practices. The codes almost never limit you from going beyond the requirements.
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Have the National Electrical Code at your fingertips AND be able to use it with speed and accuracy. This special package includes the 2011 NEC Softbound Code Book, NEC Code Tabs, and our Illustrated Changes to the NEC Textbook. More Info
Have the National Electrical Code at your fingertips AND be able to use it with speed and accuracy. This special package includes the 2011 NEC Spiralbound Code Book, NEC Code Tabs, and our Illustrated Changes to the NEC Textbook. More Info
Listen to explanations of the NEC changes in Article 90 through Article 830. You can listen to this instead of music, while you work or drive. Use your listening time as Code changes education time. More Info
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This Mike Holt Code Change program highlights the most important changes you need to know for the 2011 NEC. This exclusive NEC program includes a video of one of Mike's most dynamic live classes with a fully illustrated textbook. Includes 300+ page workbook. Articl More Info
This Mike Holt Code Change program highlights the most important changes you need to know for the 2011 NEC. This exclusive NEC program includes a video of one of Mike's most dynamic live classes with a fully illustrated 300+ page workbook. Covers Articles 320 - 830 More Info
This program explains the general 2011 NEC rules that apply to appliances, electric space heating, motors, air-conditioning, and transformers such as disconnects, conductor sizing, overcurrent, overload sizing, and much more. Includes one 3-hour DVD and textbook. B More Info
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Volume 1 of Mike Holt's 2008 Understanding the NEC Course includes an illustrated text and 7 DVDs. These will provide you with a solid understanding of Article 90 and the first four Chapters of the NEC (NFPA 70). Based on the 2011 Edition of the NEC. More Info
Learn how to correctly apply NEC Chapter 3 requirements every time. Mike Holt's Wiring Methods and Materials Course is part of the NEC training series. It covers Articles 300 - 392. Topics include wiring methods, temporary wiring, conductor properties (circular mil More Info
The Mike Holt 2011 NEC Detailed Library is for electricians and electrical engineers who need to understand and apply the 2008 NEC accurately and often. This is the "take no prisoners, accept no excuses" package for those who need to be the very best with the 2011 More Info
Correctly and efficiently apply the 2011 NEC during design and in the field. This deluxe package includes the 2011 NEC Softbound Code Book, NEC Code Tabs, and our Illustrated Changes to the NEC Textbook with 2 DVDs. More Info
Correctly and efficiently apply the 2011 NEC during design and in the field. This deluxe package includes the 2011 NEC Spiral Bound Code Book, NEC Code Tabs, and our Illustrated Changes to the NEC Textbook with 2 DVDs. More Info
The 2011 NEC contains extensive changes from the previous revision. These have a significant impact on designing, installing, and inspecting electrical systems. This book takes you through these changes in careful detail, so you understand them and can correctly ap More Info
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Save money on electrical training, with the Ultimate Training Library. This package provides a cost-savings of over $1450. The comprehensive texts and dynamic videos allow electricians to learn at their own pace and in familiar surroundings. It covers Electrical Th More Info
Save money with our 5-pack. The 2011 NEC contains extensive changes from the previous revision. These have a significant impact on designing, installing, and inspecting electrical systems. This book takes you through these changes in careful detail, so you understa More Info
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