The National Electrical Code Explained

The National Electrical Code offers the regulations and rules by which all manner of electrical wiring and equipment must comply. The NEC provides a single source filled with all of the requirements for wiring and installations.

Is the National Electrical Code a Law?

No, the NEC is simply a set of guidelines and requirements. However, many states, counties, cities, and other localities use the NEC for their own codes and regulations that builders and remodelers must follow in order to be compliant.

Where to Find the National Electrical Code

Those who are interested in the NEC, whether a builder or remodeler that needs to know the regulations for their wiring, will want to be able to access a copy. It is possible to order a bound copy of the NEC, which is over a thousand pages. Those who do not want to order a copy will also be able to access the NEC online.

What Type of Information is in the National Electrical Code?

The NEC offers an introduction, nine chapters, annexes, and an index. In the introduction, readers will find information about the rules and regulations as well as how they are enforced. The first four chapters include many rules that cover voltages, circuits and circuit protection, connections, conductors, cables, cords, receptacles, and other types of equipment.

The following three chapters deal with special conditions and equipment such as alarms and emergency systems. The eighth chapter is dedicated to the requirements for phones, TV, and other forms of communication equipment. Chapter nine offers a series of tables that detail the properties of conduits, cables, and conductors, including information such as how many wires are able to fit into a conduit without danger.

The index will help people find just the type of information for which they are searching. They can use the index to reach other areas more quickly.

Will the NEC Teach Me how to do Electrical Work?

The NEC is not a manual on how to install electrical wiring though. The information only covers the requirements for different situations and types of electrical jobs and the regulations that will make them safe. Those who do not have enough experience in electrical matters may want to consider hiring a professional that already knows the NEC and will be able to install the wiring and be within the regulations.

How Often is the NEC Updated?

The NEC offers a new addition every three years; although in the interceding years, supplemental information can be added.

Why is the NEC Important?

The NEC is important for many reasons. The most important reason to follow the regulations put forth in the NEC is for safety. Those who do not follow the rules in the NEC can cause fires, property damage, and negligence can result in loss of life. Another reason to follow the NEC is so that your building is up to code. Be sure to check the local codes in your area as well, as they are sometimes more stringent than the NEC.