Warning, some memorizination required!

“Change Four” and the National Electric Code


I constantly preach the importance of look up speeds as a core skill for student success. After all, it’s an open book exam.

Some memorization definitely helps and “Change Four” is one of them.

Larger than 6 AWG

For Conductor Identification


What is the next larger conductor larger than 6 AWG?


No. 4 AWG.

Notice that the rules change. This rule also applies to the “grounded conductor”.

NEC and the “Change 4” rule

There are two more “Change 4” NEC code references. Can you name them?


Memorizing “Change 4” just might lead to 3 or more correct exam answers!

Life is good!

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