What is the minimum clearance required for service conductors installed as unjacketed multi-conductor cable from windows that can be opened?

The minimum clearance required for service conductors installed as unjacketed multi-conductor cable from windows that can be opened is indeed 3 feet. This requirement is essential for ensuring safety and accessibility. By maintaining this clearance, the risk of accidental contact with the conductors when a window is opened is significantly reduced, thereby minimizing the chance of electrical shock or short circuits.

This specification is established in the National Electrical Code (NEC) and ensures that there is a safe distance between energized conductors and areas where people may routinely engage with, such as open windows. The regulation aims to protect both individuals and property from potential hazards associated with electrical installations.

Proper adherence to these distances not only complies with electrical safety standards but also mitigates any dangerous situations that might arise from the proximity of unjacketed cabling to living spaces. This is particularly relevant in residential or commercial buildings where the presence of open windows is common.