Reference Formulas Appendix To The 2002 NEC - Digital Delivery $5

Provided by ElectricianEducation.com and ElectricianMath.com

This is a digital delivery item for immediate download to your computer.

Published by ElectricianEducation.com

The National Electrical Code folks are increasing the technical data contained in the code. But they still refuse to add formulas and tables which would make electrical work easier to do. Further, they retain the desire that the book remain NOT a manual for untrained persons. So very few aspects are included in the book to help an electrical instructor train beginning electricians.

So as a pragmatic blue collar worker and electrical instructor of over thirty years, I have brought together in one booklet, all the formulas that I wish were in the NEC. In addition, I have constructed tables which I feel belong in the code. These tables are of my own invention and derivation. None of the content has been submitted to the NFPA, nor has any of the detail been approved by the NFPA. I simply have taken what they have included and amplified that detail.

Here is a sample page:

Partial Overview

-calculator technique is spelled out step-by-step for substitution algebra problem solving.

-conversion formulas typically needed are included.

-nipple fill tables not in the NEC are found here.

-household cooking load feeder demand tables are expanded so that time-consuming calculations are unnecessary for most exam problems.

-ohms watts - series parallel circuit formulas are here.

-a single chart of how to determine wire size, breaker size, service feeder value and neutral is developed.

-alternating current formulas are given in great abundance.

-constants used in voltage drop are calculated and listed.

-transformer formulas for single phase and three phase are complete.

-unusual words not found in the code index or other word indexes are given alphabetically with reference.

To make reading easier, the pages are the same size, same layout, and similar type style to the NEC. The look just like what is included in the code. Finding answers is fast and easy. This tool belongs in every NEC.

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Good luck as you work to prepare for your next electrical license exam.

Cheers:>)

David U. Larson