The answer to 'fuse box buzzing noise' is that a buzzing sound coming from your home's fuse box or circuit breaker panel is usually a sign of an electrical issue that needs to be addressed. This could be caused by loose connections, a malfunctioning breaker, or other problems within the electrical system.
A buzzing noise can indicate that there is an electrical load that is too high for the circuit, or that there is a short circuit or ground fault somewhere in the wiring. This can be a fire hazard, so it's important to have it checked out by a professional electrician as soon as possible.