Hazardous Issues with Aluminum Wiring in Distribution Boxes
Problems due to aluminum wiring expansion, or much more likely micro-fretting and arcing at the aluminum wiring connectors, can cause overheating at the connections between the wire and devices (switches and outlets) or at aluminum wire splices. Aluminum wiring was installed in millions of American homes built between 1965 and 1973, a period when copper prices spiked sharply and aluminum emerged as a cost-effective substitute for branch circuit wiring. This page covers how aluminum wiring behaves differently from copper, the specific. POST a QUESTION or COMMENT about aluminum electrical wiring: hazards, risks, proper repairs, identifying aluminum wiring. In older homes—particularly those found in cities like Birmingham, where many properties were built decades ago—outdated or unsafe wiring can pose serious risks.
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