What must be ensured about lead-in conductors on the outside of a building in relation to light and power conductors?

Ensuring that lead-in conductors do not swing closer than specified distances to light and power conductors is vital for safety and code compliance. This requirement is in place to prevent electrical hazards, such as short circuits or accidental contact, which could result in electrical shock or fire.

The National Electrical Code (NEC) provides clear guidelines about the spacing between various types of conductors to protect against interference and ensure reliability in electrical systems. Proper separation minimizes risks associated with electromagnetic interference and helps maintain the integrity of the electrical installation.

This specific consideration helps ensure that even during adverse weather conditions or physical movements, the lead-in conductors maintain a safe distance from light and power conductors, facilitating safe operation throughout their lifetime.