How should conductors be configured under a single terminal?

Conductors under a single terminal should be configured using the same gauge and composition to ensure electrical integrity and safety. Using conductors of the same gauge means that they have the same physical dimensions, which helps to ensure that they can carry the same current load without overheating or causing voltage drops. Different gauges could lead to uneven distribution of current and increase the risk of failure or damage.

Additionally, using conductors of the same composition is critical because different materials, such as copper and aluminum, have different thermal and electrical properties. Connecting dissimilar materials can result in galvanic corrosion at the connection point, decreasing the reliability of the electrical connection over time.

By ensuring that all conductors are of the same gauge and composition, you help mitigate risks associated with connections, improve performance, and enhance the overall safety of the electrical system. This practice is a standard requirement in electrical installations, specifically outlined in relevant codes and standards to prevent electrical hazards.