What is required of conductors in raceways according to the NEC?

Conductors in raceways must indeed be continuous to ensure reliability and safety within electrical systems. Continuity of conductors minimizes the risk of voltage drop due to splices and ensures a stable and uninterrupted flow of electricity. Continuous conductors help facilitate a consistent path for current and prevent potential issues such as overheating or outages that can arise from poor connections or multiple splices.

While there are circumstances in which conductors may be spliced, the NEC emphasizes that best practices advocate for continuous runs to enhance the integrity of the installation. Isolating conductors or allowing disconnections at various points can lead to safety hazards and compromise the operational efficiency of the electrical system. Therefore, the requirement for conductors to be continuous is a fundamental aspect of ensuring compliance with safety standards and maintaining the overall effectiveness of the electrical installation.