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HOUSE HEALTH
Aluminum Wiring
Due to implications in numerous house fires, the once common
practice of using aluminum wiring during the 1970's is no longer
permitted in new installations in most jurisdictions. If your
house has aluminum wiring you do not necessarily need to panic.
Aluminum wiring can be just as safe as copper wire as long as it
has been installed correctly. The concern with aluminum wiring
is that it is very unforgiving if it has been installed
incorrectly.
Aluminum wiring expands when it warms up, and contracts when it cools down. Aluminum reacts differently than copper wire after several warm/cooling cycles. After each cycle, aluminum tends to lose more of its tightness. This process is often referred to as "cold creep". Combined with aluminum's tendency to oxidize when in contact with certain metals, these factors can lead to dangerous problems. When aluminum oxidizes, it heats up more to conduct the same amount of electricity, which then causes more oxidation. Due to this cycle, the wires may eventually start to get very hot, melt the fixture that it is attached to, and even possibly cause a fire. If you are considering purchasing a home with aluminum wiring, or have discovered it later, it would be a good idea to hire a licensed electrician or inspector to check over the wiring for any potential problems.
We provide home inspection services throughout Northern Mississippi and West Tennessee.
House Call Inspection Service, LLC.
1138 N. Germantown Parkway, Suite 101-289
Cordova, Tennessee 38016
901.493.6526
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