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When installing conductors of different systems in the same raceway, it is essential to ensure that the neutrals are easily distinguishable to avoid confusion and potential safety hazards. The correct approach involves using white or natural gray for one of the neutral conductors, which is standard practice for commonly used neutral conductors, while applying a colored stripe for others. This method follows the National Electrical Code (NEC) requirements that stipulate the need for clarity in identifying neutral conductors, especially when they belong to different systems.

This clarification helps to prevent accidental misconnection and ensures that electrical systems operate safely and efficiently. By adhering to this color-coding guideline, electricians enhance safety measures and comply with electrical code requirements. Additionally, the use of distinct markings or color patterns helps anyone working on or inspecting the system to quickly identify the purpose and system associated with each neutral conductor, significantly reducing the risk of errors and improving overall system integrity.