Electrician's Licensing Practice Exam

What does the phrase "in sight" mean in NEC terminology?

1. Visible and within 25 ft

2. Visible and within 50 ft

3. Not visible but accessible

4. Only visible under certain conditions

The correct answer is: Visible and within 50 ft

In NEC terminology, the phrase "in sight" refers to a condition where an item is visible and must be within a specified distance, which in this case is defined as being within 50 feet. This specification is important because it relates to safety and accessibility standards in electrical installations. When a device, such as a disconnect switch or circuit breaker, is installed "in sight" of the equipment it serves, it allows for easy visual confirmation and ensures that personnel can quickly locate and access the equipment in case of an emergency or for maintenance purposes. The definition emphasizes both visibility and the specified distance, making it clear that the equipment should not only be seen but also reachable without any physical barriers. Therefore, when adopting electrical codes and guidelines, understanding the specific distance criteria is crucial for compliance and safety in electrical work. The other options do not correctly represent the NEC definition of "in sight," as they either provide incorrect distances or imply conditions that do not align with the NEC guidelines, such as describing visibility under certain conditions or access without visibility, which differs from the straightforward requirement of visibility and proximity.