Protecting Your Home with Arc-Fault Circuit Interrupters (AFCIs)

Arc-fault circuit interrupters help to prevent housefires.

The Wildcat Inspections Team knows that when buying a home, safety is often at the forefront of your concerns. One critical yet often overlooked aspect of home safety is electrical protection. That’s why you will almost always find it at the top of our agenda when reviewing your new home inspection. One important component of the electrical system that’s often missing in older homes is the Arc-Fault Circuit Interrupters (AFCIs). These devices play a vital role in safeguarding your home and family from electrical fires caused by arc faults. Let’s explore why AFCIs are important, where they are required, and what alternatives can provide similar protection.

Why Are AFCIs Important?

The National Fire Protection Association (NFPA) keeps records on fires and provides the following information. Local fire departments responded to an estimated average of 46,700 home fires involving electrical failure or malfunction. That was the average for each year between 2015–2019. Home fires involving electrical failure or malfunction caused an estimated average of 390 civilian deaths and 1,330 civilian injuries each of those years.  As well as an estimated $1.5 billion in direct property damage per year.

Arc faults occur when electrical currents jump between wires or connections, often due to damaged or deteriorated wiring. These faults can generate intense heat, potentially igniting surrounding materials and causing fires. AFCIs are designed to detect these dangerous arc faults and shut off the electrical circuit before a fire can start. By preventing electrical fires, AFCIs protect not only your property but also the lives of your loved ones.

Where Are AFCIs Required by Code?

The National Electrical Code (NEC) mandates the use of AFCIs in specific areas of residential homes. Initially, AFCIs were required for circuits serving bedrooms, but their scope has expanded over the years. According to the NEC, AFCI protection is now required for 15- and 20-amp branch circuits supplying outlets in areas including:
(1) Kitchens
(2) Family rooms
(3) Dining rooms
(4) Living rooms
(5) Parlors
(6) Libraries
(7) Dens
(8) Bedrooms
(9) Sunrooms
(10) Recreation rooms
(11) Closets
(12) Hallways
(13) Laundry areas
(14) Similar areas

AFCI protection is not required for outlets in bathroom areas, garages, or outside. These requirements ensure comprehensive protection throughout the home, reducing the risk of electrical fires in commonly used spaces. Note that the Texas Occupations Code § 1305.201 provides municipalities the authority to make local amendments to the NEC.

Alternatives to AFCIs

While AFCIs are highly effective, there are alternative solutions that can offer similar protection. One such option is a combination AFCI/GFCI device. These dual-function devices provide both arc-fault protection and ground-fault protection. They safeguard against electrical fires and shock hazards. Additionally, regular inspections and maintenance of your electrical system can help identify and address potential issues before they become dangerous.

Closing Thoughts On AFCIs

As a homebuyer, understanding the importance of AFCIs and ensuring your new home complies with electrical safety codes is crucial. These devices are a small investment that can make a significant difference in protecting your home and family. If you’re considering alternatives, combination AFCI/GFCI devices and proactive electrical system maintenance are excellent options to enhance your home’s safety.

By prioritizing electrical safety, you can enjoy peace of mind and focus on creating lasting memories in your new home. After all, a safe home is a happy home.

Lead Author
BW Robbins is author of Wildcat Inspections blog, PRO-TIPS.
BW Robbins

BW Robbins has been a licensed TREC home inspector since 1998 and is an InterNACHI Certified Master Inspector, and lead author for the Wildcat Inspections blog, PRO-TIPS.

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