For which circuits can a common neutral be used according to Wendy's specifications?

A common neutral can be used for lighting branch circuits scheduled for different phases because this configuration allows for effective load balancing. When circuits are connected across different phases, the alternating currents in those phases oppose each other, which can lead to a reduction in the load on the neutral conductor. This is particularly useful in multi-wire branch circuits where separate circuits share a neutral, benefiting the overall efficiency and safety of the electrical system.

It's important to note that using a common neutral across all branch circuits would not be compliant with specific codes and regulations that govern how different types of circuits may share neutrals, particularly when considering the potential for overloading. Similarly, using a common neutral on power circuits without adherence to guidelines could introduce safety hazards. Kitchen circuits, which often require dedicated circuits due to higher demand from appliances, should typically have their own neutrals to prevent overload and ensure safety.