Final answer:
Enclosures for circuit breakers shall not be used as raceways or junction boxes as per electrical codes. This ensures separation of high-energy and low-energy environments and prevents risks such as overheating and short circuits.
Step-by-step explanation:
The question pertains to the regulations surrounding the use of enclosures for circuit breakers. According to well-established electrical codes and standards, enclosures for circuit breakers shall not be used as raceways or junction boxes for conductors. This is a safety requirement intended to separate the high-energy circuit breaker environment from the lower-energy environments typically associated with raceways and junction boxes. The use of circuit breaker enclosures for these purposes could compromise the system's design and safety features, potentially leading to overheating, short circuits, or other electrical hazards.