The answer to 'how to know if your electrical panel needs upgrading' is that your electrical panel may need to be upgraded if it is outdated, has insufficient capacity, or shows signs of wear and tear. An outdated panel may not have the necessary safety features or be able to handle the electrical demands of modern homes. Insufficient capacity can lead to frequent tripping of circuit breakers or fuses, which can be a fire hazard. Signs of wear and tear, such as rust, damage, or loose connections, can also indicate the need for an upgrade.
To determine if your electrical panel needs upgrading, it's important to have a professional electrician inspect it. They can assess the panel's age, capacity, and condition, and recommend the appropriate upgrades to ensure the safety and efficiency of your home's electrical system.