“Experts first began saying in 1980 that a high percentage of circuit breakers failed to trip. After testing the devices for about two years, the Consumer Product Safety Commission said the government lacked sufficient data to warrant a recall. No warning was ever issued.
But in recent years, engineers studying them independently have found that the circuit breakers can overload and cause fires. Many have been replaced in the decades since they were manufactured, but one expert estimates they are still used in 20 million homes nationwide…
No one can say how many house fires can be traced back to faults the experts see in the boxes, although fire departments and insurance inspectors say they regularly see fires start there, or start elsewhere in a home because a circuit breaker fails to do its job.
Several engineering experts who have tested the boxes under laboratory conditions have found them to be defective. Potential problems with the Federal Pacific circuit breakers are such that many Texas home inspectors regularly advise home buyers to remove them before a purchase…” [ read more ]