Electrician Math

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ElectricianMath.com - Electrician Math  

 

What's New:

Now you can download one practice question from each article of the National Electrical Code.


Click this button to buy 141 Questions, one from each article of the 2005 NEC.
$6 digitally delivered to your computer where you can save and print.
You can pay online with any debit or credit card.

Buy Now 141 Questions from the 2005 NEC


Click this button to buy 144 Questions, one from each article of the 2008 NEC.
$6 digitally delivered to your computer where you can save and print.
You can pay online with any debit or credit card.

Buy Now 144 Questions from the 2008 NEC


Click this button to buy 147 Questions, one from each article of the 2011 NEC.
$6 digitally delivered to your computer where you can save and print.
You can pay online with any debit or credit card.

Buy Now 147 Questions from the 2011 NEC


Click this button to buy 151 Questions, one from each article of the 2014 NEC.
$6 digitally delivered to your computer where you can save and print.
You can pay online with any debit or credit card.

Buy Now 151 Questions from the 2014 NEC


Practice Exams now available for the 2011 NEC National Electrical Code
Electrician Immediate Digital Downloads Now Available. 
Click HERE to see the list of available items.

What's New:
Now available, a workbook designed to improve the speed of an electrician
to find and answer questions based on tables in the NEC. Find details
HERE.

 

ElectricianMath.com Electrician Math is a website which presents all electrical calculations likely to be encountered by an electrician in classes, on the job, and on electrician examinations. From calculator practice to commercial service calculations, every electrician can benefit from the content of this electrical math website by David Ullian Larson. 

An electrical apprentice, journeyman electrician, master electrician, and electrical inspector will find help here to improve calculations technique. Formulas are explained. Algebra is included. Conversion and derivation of formulas is a large part of this presentation. Story problems and grid worksheets are backed up with audio support. Mathematics is used by electricians every day. This website established a comprehensive coverage of each topic. Several thousand practice calculations are provided. 

The material presented here online is free for all to use. If you need more support material, printed workbooks and digital download workbooks are also available.

So where do you begin. You may want to go through a checklist of calculation types to be sure you understand each type.
Find a Journeyman Electrician Checklist HERE.
Find a Master Electrician checklist HERE. 

Or you may want to start by selecting a calculation type in the navigation links above that you are not sure about. Read the details about that calculation type. Get your calculator and code book ready. Do a few of the practice problems. If you do not understand the technique, do more until you do understand. There is no time limit to this activity. You may spend years to perfect all calculation types.  If you do understand the problem type, then move on to the next calculation you want to investigate.

Along the way you may need to listen to the audio lecture about that topic. Turn up the volume on your computer and go for it. All this is free for your use. If you prefer working from a paper workbook, they are available. But you can you can also buy a digital download for all of these workbooks and put the workbooks on your computer hard drive to use even if you are not online. Or print them with your computer. But you do not have to do that. You can just keep coming back to this page until you understand all the calculation techniques. Compliments of ElectricianMath.com and ElectricianEducation.com and the author, David U. Larson.

So click on. Have fun. Improve your electrical knowledge. All you need to spend is the electricity to power your computer and the internet monthly fee. Set aside the time to improve your electrical knowledge. Place your self on a chair in front of a computer. Then focus. And have at it. As I often say, Invest In Yourself.

What's New:

Now the answers to all practice problems have been added to the website as a free download. Getting all the files formatted and loaded took me a while. But they are now available online, and all for free . You can still get a printed version of any workbook you need if you choose. There are buy now buttons to order with any debit or credit card. But all worksheets and all answer pages to all 10,000 Journeyman and 10,000 Master Electrician practice problems are available online to be printed at no charge.

You will need a calculator for many of these calculations.

A Texas Instruments TI-30Xa calculator for about $12 is the correct calculator for all calculations on these web pages. No fancy calculator is needed. The TI-30Xa is perfect for every electrical calculation an electrician needs to make. Don't get any other version, though. The TI-30Xa has all the necessary keys for functions which are needed by electricians. If you have some other calculator, save it for your income taxes. Pry open your wallet, take out twelve bucks, and buy a TI-30Xa. Instructions are provided based on the TI-30Xa. No, I do not own stock in the Texas Instruments Corporation. And I have received no compensation for this promotion. It just happens to be the best calculator for what an electrician needs a calculator to do.

Find support for the Texas Instruments TI-30Xa calculator HERE.

Here is a linkrack to take you to a description of all calculations workbook digital downloads that are available from ElectricianMath.com if you want to load thesae files on your computer.

Journeyman Calculations Workbook #1

Journeyman Calculations Workbook #2

Journeyman Calculations Workbook #3

Journeyman Calculations Workbook #4

Journeyman Calculations Workbook #5

Journeyman Calculations Workbook #6

Masters Calculations Workbook #1

Masters Calculations Workbook #2

Masters Calculations Workbook #3

Masters Calculations Workbook #4

Masters Calculations Workbook #5

Masters Calculations Workbook #6

Click HERE to go to a page with information about additional digital downloads for electrician examinations and study materials.

Hardcopies  of these workbooks are also available if you do not want to use the digital download feature. Each workbook is printed on 8 1/2 x 11 inch three hole punched paper.
Click HERE for details and order information.



Want a copy of the first National Electrical Code? Here's your chance.

ElectricianEducation.com will send you a photocopy of the 1897 "National Electrical Code" for $8 postpaid to any USA address.

You will receive in booklet form a photocopy of the first National Electrical Code of 1897.
The size is 5 1/2 x 8 1/2 inches. There is a cover stock cover. Two staples hold the pages together. The pages are photocopies of the original book. There are 64 interior pages. Each is 5 1/2 x 8 1/2 inches. This edition of the code is 56 numbered pages plus 4 introduction pages. Here is an image of the cover followed by an image of the interior of the book. Read all 72 Rules of the day.

 

You may send a check, money order, or click the Buy Now button below to order a photocopy  online with any debit or credit card. 
Click HERE if you need a mailing address to send your payment.

Full refund if you are not pleased with your item.

Use any debit or credit card. $8 postpaid to any USA address.

Click this button to purchase a photocopy of the first National Electrical Code 1897.

 

Electric Motors Calculations Workbook

Most electricians think the branch circuit conductor, disconnect, and overcurrent protective device are sized based on the nameplate flc of the motor. If this is you, then this workbook might be just what you need to get motor calculations straight. These calculations are to be calculated based on the NEC table values. Only motor overloads are based on nameplate, with a few exceptions. Aren't there always a few exceptions.

This 144 page workbook contains over 5000 different motor calculations and motor related questions. Answers are provided for each question. Audio support is also available online for every question type. Plus there are hyperlinks to more problems if you need them to get proficient.

$24.99 plus $4.60 postage to any USA address.

To find specifics and order details for this workbook click HERE.

 

Take a look at Check Values where you can use specific values to verify that you are entering data correctly into a formula with your calculator. 

Also new is Tables where you can find tables not in the NEC but probably should be there.

Check out the Electrical Calculations Tools Reference Page for more sites to visit.


This is a companion website to http://www.electricianeducation.com  

Use the navigation bars at the top of this page to go to the mathematics calculation topic you want to access. Please note that many links are provided here which will take you away from this website. You may want to create a short cut with a right click or select this page as a favorite so you can quickly return as needed.

You can search this website for calculations you seek with this Google search box:

 

An excellent glossary for electricians is included HERE.

Many electrician workbooks and practice exams are now available 
as digital downloads for immediate use. 
Click HERE to see what is available.

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