In a DC system, which color finish can be used to identify the positive ungrounded conductor?

In a DC system, the color red is specifically designated to identify the positive ungrounded conductor. This standardization helps ensure safety and clarity in electrical installations, making it easier for technicians and electricians to identify the polarity of conductors quickly. The use of color coding is crucial in preventing mistakes, as it provides a visual reference that distinguishes between different types of conductors.

In contrast, black is typically used for the negative conductor or ground in certain systems, while white usually indicates a neutral conductor. Green is reserved for ground conductors. Therefore, red stands out as the accepted color for indicating the positive ungrounded conductor in a DC context, ensuring consistent application of electrical standards.