The answer to 'is aluminum wiring dangerous' is that aluminum wiring can be dangerous and poses a fire risk in homes. Aluminum wiring was commonly used in residential construction in the 1960s and 1970s as a cheaper alternative to copper wiring. However, over time aluminum wiring can become loose in electrical connections, leading to overheating, sparks, and potential fires.
Homes with aluminum wiring require special care and maintenance to ensure safety. Aluminum wiring should be regularly inspected by a licensed electrician and may need to be replaced with copper wiring to eliminate the fire hazard.