From the 1950s to 1990s, the United States saw an amazing number of homes built. During the building, developers put in the most economical electrical panels they could find. They wanted to keep expenses to a minimum, so young families could afford a house.
Unfortunately, many of these homes were equipped with sub-par electrical panels that were poorly designed and caused fires that destroyed homes. Today, many of these older homes are unable to pass inspection or be insured because of these panels. The only way to know if you have one of these electrical panels in your home is to inspect your panel box and see who manufactured it. However, even this isn't enough because some panels were built by one company but sold under a different name. Re-branding doesn't change the fact they still pose significant fire risks.