Fuses typically last from several years to several decades, but their lifespan is affected by the operating environment and load, so they need regular inspection and replacement.
Lifespan is affected by many factors: A fuse's lifespan is not fixed but is affected by a variety of factors, including the operating environment, load size, current surge, and temperature fluctuations. Therefore, it's impossible to give a precise lifespan.
Regular inspection is necessary: While there's no set replacement frequency, it's recommended to inspect the fuse at least once a year. This allows for the timely detection and treatment of aged, burnt, or broken fuses, preventing potential circuit failures and safety risks.
Replace immediately if abnormal: If a fuse becomes burnt, broken, or exhibits abnormal behavior during use, it should be replaced immediately to ensure proper circuit operation and safety.
Pay attention to the model and specifications when replacing a fuse: When replacing a fuse, always use a new model with the same model and specifications as the original to ensure it can function properly. If you're unsure how to proceed, consult a professional or electrician.
