Conductors under a single terminal shall be:

Conductors under a single terminal must be of the same gauge and composition to ensure reliable and consistent electrical connections. When conductors are mixed with different gauges, it can lead to uneven current distribution, which may cause overheating and potential failure of the electrical system. Using conductors with the same gauge allows for uniformity in current flow and easier troubleshooting.

In addition, the same composition means that the materials will have similar electrical properties, reducing issues related to corrosion and differing expansion rates, which could compromise the electrical connection over time. This practice is essential in maintaining safety and performance standards in electrical installations.