how does home electrical wiring work

Electrical wiring is a complex task. It requires an understanding of the National Electrical Code and the local codes that regulate the type of wiring that must be installed for specific applications. For new construction or major repair projects, it is always best to hire a licensed electrical contractor to ensure that the job is done properly and is up to code.

However, for the homeowner who is doing minor repairs, there are some basic steps that can be taken to ensure that the wiring is safe and compliant with code. First, it is important to identify the type of wiring being used. Generally speaking, nonmetallic sheathed cables (NM) are most commonly used in residential applications. Homeowners should also make sure that the amount of electricity each circuit will handle is appropriate for the devices it will power.

Finally, it is important to carefully follow the installation instructions. This includes properly sizing and installing a circuit breaker, using the correct wire size and type, and following the exact instructions for connecting fixtures and switches. If required devices such as GFCI outlets are not installed, homeowners may be liable for any resulting damage or injury. The best way for anyone to ensure proper and safe electrical wiring in their home is to have a qualified electrician complete the work.

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