Aluminum wiring was used in the late 1960s and into the mid-1970s in many homes across North America. Aluminum wiring itself is not dangerous to have in your house. The issue with aluminum wiring is in faulty terminations either in receptacles and switches, or light fixtures and equipment. Due to expansion and contraction of the conductor itself and the fact that aluminum will oxidize over time, heat can be generated at points where the aluminum wiring is improperly terminated. One of the main issues with aluminum wiring is that while everything may appear fine with your wiring, it could be deteriorating behind devices, creating a dangerous fire hazard. If you have concerns about aluminum wiring in your home or business you should have it inspected by a licensed electrician who has experience working with aluminum wiring.
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