Arc-Fault Protection in Homes: Meeting 2020 NEC Requirements
Electrical safety has advanced dramatically over the last two decades. One of the most important improvements for homeowners is arc-fault protection. The 2020 National Electrical Code (NEC) expanded the use of Arc-Fault Circuit Interrupters (AFCIs) to help prevent electrical fires caused by damaged wiring or loose connections. At Allen Electrical Service, we make sure every installation meets the latest code and keeps your family safe.
1. What Is Arc-Fault Protection?
An arc fault occurs when electricity jumps, or “arcs,” between conductors due to damaged insulation, worn cords, or loose terminals. That arc produces heat hot enough to ignite nearby materials. Traditional breakers respond to overloads and short circuits, but they cannot sense the subtle, erratic arcing that often starts house fires.
An AFCI constantly monitors current flow and instantly shuts off power when it detects dangerous arcing. Modern AFCI installation protects your home by cutting power before the arc can spark a fire. Whether installed as breakers in your panel or as receptacle-type devices, AFCIs are now an essential part of any modern electrical system.
2. 2020 NEC Requirements for AFCI Protection
The 2020 NEC requires arc-fault protection on nearly all 120-volt, single-phase, 15- and 20-amp branch circuits that supply outlets or devices in living spaces. If your home has circuits serving any of the following areas, AFCI installation is required:
Bedrooms and Living Spaces – Family rooms, dens, dining rooms, and similar areas.
Kitchens – All outlets serving countertops, refrigerators, and fixed appliances.
Laundry Areas and Closets – Circuits serving washers, dryers, and lighting.
Hallways, Sunrooms, and Similar Rooms – Any habitable space in the dwelling.
Finished or Partially Finished Basements – Every receptacle outlet in these areas.
Depending on your panel and wiring layout, your electrician may install either a breaker-type AFCI or a receptacle-type AFCI at the first outlet in a circuit.
3. Dual-Function Protection: AFCI + GFCI
The 2020 NEC also recognizes the value of dual-function circuit interrupters, which combine AFCI and GFCI protection in a single device. These units guard against both electrical fires (from arc faults) and electrical shock (from ground faults).
Areas such as kitchens, laundry rooms, bathrooms, and outdoor circuits benefit most from dual-function protection. A qualified electrician can recommend where combined AFCI/GFCI installation offers the greatest safety and efficiency.
4. Why Professional AFCI Installation Matters
Arc-fault devices only work when installed correctly. Homes with shared neutrals, older panels, or mixed wiring types can be tricky. Incorrect wiring may disable the protection completely. A licensed electrician ensures every device is rated properly, installed to 2020 NEC standards, and tested for reliability.
At Allen Electrical Service, we provide professional AFCI installation, inspection, and upgrades throughout Hampton Roads. Our team makes sure your home meets modern code requirements and stays protected from hidden electrical hazards.
Keep Your Home Safe with Code-Compliant Arc-Fault Protection
Arc-fault protection is one of the best defenses against electrical fires in residential settings. Whether you’re remodeling, building new, or upgrading your panel, proper AFCI installation ensures your home meets the 2020 NEC and keeps your family safe.
Contact Allen Electrical Service today for expert advice and installation. We’ll help you achieve full code compliance, protect your investment, and enjoy lasting peace of mind.
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