Can antennas and lead-in conductors be attached to an electric service mast?

A service mast is designed to support the overhead conductors that provide electrical service to a building. National Electrical Code (NEC) regulations prohibit the attachment of antennas and lead-in conductors to a service mast because such attachments can create safety hazards. These hazards include the potential for interference with the electrical system, increased risk of damage to the service equipment during storms or high winds, and the possibility of creating a pathway for lightning strikes.

Moreover, ensuring that the service mast functions exclusively for electrical service enhances the overall safety and reliability of the residential wiring system. By separating the service mast from non-electrical attachments, compliance with safety codes is maintained, thereby protecting both property and individuals from electrical hazards. The standard practice is to install antennas and lead-in conductors using separate supports, thereby keeping the electrical service mast free from additional equipment that could compromise its integrity or function.