Aluminum wiring was commonly used in United States residential construction between the 1960’s and early mid-1970's. During this time, aluminum wiring was installed in residential and commercial buildings. As more homes switched to aluminum wiring, people quickly saw a spike in electrical fires. Because of the safety risks associated with aluminum wiring, it is recommended to update your electrical wiring by an electrician.
Did You Know? Homes with aluminum wiring are 55 times more likely to have a fire compared to homes with copper wiring.
The Danger of Aluminum Wiring
Aluminum wiring in your home poses many serious dangers. For example, it can:
- Cause flickering lights
- Dimm lights
- Warm electrical outlets
- Omit dangerous toxins
- Cause circuit breakers to trip
- Start electrical fires
- Release foul odors, especially plastic-smelling odors
Tips to Help Identify Aluminum Wiring in Your Home
To determine if you have aluminum wiring in your home
- Check the age of your home: If you know your home was built in the 1960’s or early 1970’s, this is a strong indicator you may have aluminum wiring.
- Look at the electrical panel: By opening the electrical panel, you can determine the wiring type. Aluminum wires are usually marked “AL” or “Aluminum”.
- Contact an electrician: For safety reasons, it’s best to contact a certified electrician to assess your home’s wiring and determine the best course of action for any necessary electrical upgrades.
Two Types of Aluminum Wiring Methods
The Milton Electric team will help rewire the aluminum wiring in your home by using two different wiring methods called AlumiConn Connectors or Purple Wire Nuts. Both are designed and specifically rated to fix aluminum wiring.
- AlumiConn Connectors: This wiring method prevents overheating and corrosion, ensuring a stable connection. AlumiConn connectors are easy to install with a simple screw mechanism and provide a long-lasting solution to reduce risks associated with aluminum wiring.
- Purple Wire Nut: Helps internal corrosion, preventing oxidation. This cost-effective method provides a secure, and safe connection for homes with aluminum wiring.
Our team will ensure the wiring method chosen matches your home's electrical wiring needs.
Retrofitting Aluminum Wiring with Milton Electric
Aluminum wiring poses a serious safety hazard to buildings and homes. If you require updates to your aluminum wiring or have concerns about your home’s electrical system, contact Milton Electric today for expert electrical upgrades in the Baltimore-Metro area and surrounding towns.
Retrofitting Aluminum Wiring FAQ’s
When was aluminum wiring banned?
Aluminum wiring was phased out in the mid-1970's due to the significant safety risks it posed, including a rise in electrical fires and deaths. Initially, it was seen as a cost-effective alternative to copper, which was more expensive. At the time, aluminum was abundant, making it a popular choice for residential electrical systems. However, it quickly became apparent that aluminum wiring has serious drawbacks.
What does aluminum wiring look like?
Aluminum wiring typically appears silver or gray in color, with a shiny or metallic finish. Unlike copper, which has a reddish-brown hue, aluminum wires are lighter and have a smoother texture. Over time, aluminum wires may develop a powdery white or blueish oxide coating at connection points due to oxidation.
What makes aluminum wiring and copper wiring different?
Aluminum wiring and copper wiring differ primarily in material, conductivity costs, and safety. Aluminum is lighter and cheaper but has lower electrical conductivity, requiring thicker wires to match copper’s efficiency. It is also more prone to oxidation and expansion. On the other hand, copper offers stronger conductivity, durability, and resistance to corrosion, making it safer and more reliable.
Why Do Electricians Recommend Updating Copper and Aluminum Wiring Connections?
All connections between copper and aluminum wiring must be found and updated. Additionally, an electrician should clean both copper and aluminum wiring to remove any remaining oxidation. This helps remove any resistance to the electrical current flowing through the wires.