The answer to 'why is my electrical wiring buzzing noise' is that a buzzing or humming sound coming from your electrical wiring is often caused by a loose connection or a problem with the electrical current. This can be a sign of an issue that needs to be addressed to prevent potential fire hazards or other electrical problems.
Some common causes of buzzing electrical wiring include loose connections in outlets, switches, or junction boxes, overloaded circuits, or issues with the electrical panel. The buzzing sound may also be caused by electrical interference or a problem with the grounding system. It's important to address the issue promptly to ensure the safety of your home and family.