2020 Residential Calculations

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Discount Price: $67.46

Residential calculations are the most difficult to perform because the rules and regulations of the National Electrical Code are more restrictive than those for commercial or industrial facilities. The standard or optional calculation shall be permitted to be used to calculate the loads to size and select the elements for the feeder or service. The optional calculation seems to be the favorite method used by designers and electricians. This is true because once loads are calculated, it produces smaller VA or amps than the more complicated standard calculation. Therefore, smaller components are required in the electrical system and greater savings in wiring methods are achieved. The procedure for laying out residential calculations will be different in some ways than those used for commercial and industrial.

When using the standard calculation, there are six loads to be determined. Four of the loads, under certain conditions of use, shall be permitted to have demand factors applied. The optional calculation consists of two calculated loads. Each load is calculated and demand factors are applied as an approximate load.

Volt Online Academy encourages anyone interested in learning the requirements for residential calculations per the National Electrical Code to compare against the competition, we are confident in our products and prices, you decide.

Benefits of our online training courses

Volt Academy instructors have designed the most motivating learning paths for you

#1 Interactive features

Stunning interactive features, such as, illustrations with clickable sections and tables, video with avatar with clickable section and tables, drag and drop activities, etc.

#2 Calculation Problems

This one interactive feature is a online course development that truly separates itself from any other online providers. Fill in the calculation blanks and check your answers with the answer key that is provided.

#3 Rich interactive courses

A complete built-in social network for connecting with your students. The only online course platform that helps your students connect with peers.

You Need the Best Training Material to Make This Possible

Stallcup Publication Text

We have successfully brought classroom training to online training. All Volt Academy online courses use the internationally known Stallcup publications.

Detailed Illustrations

What makes an incredible online experience, detailed illustrations with clickable National Electrical Code sections and tables, we even provide code loops, where needed.

Video With Voice Over

Video with voice over, the technology in our online courses, is simply amazing. All text script is written by our instructors, with 70 years experience combined, we know exactly what our customers need to learn.


We know the type of questions our customers need to learn, whether is a National Electrical Code question or calculation question. All calculation questions are verified with step-by-step solutions with sections and tables.