The answer to 'why is my electrical wiring buzzing noise' is that a buzzing noise in your electrical wiring is typically caused by a loose or faulty connection. This can happen when wires become loose over time, or if there is a problem with the electrical panel, outlets, or other components in your home's electrical system.
Some common symptoms of this issue include a humming or buzzing sound, flickering lights, or a slight electrical shock when touching metal surfaces. If left unaddressed, a buzzing noise can indicate a more serious problem that could lead to an electrical fire. It's important to address the issue promptly, either by troubleshooting and fixing it yourself if you have the proper skills and equipment, or by calling in a licensed electrician to diagnose and repair the problem.