Every 5 to 6 feet, a rigid service mast should be secured to what?

A rigid service mast should be secured to the structure at intervals of 5 to 6 feet to ensure stability and proper support for the overhead service conductors. This practice is critical for maintaining alignment and preventing undue stress on the electrical fittings and service entrance cables. Securing the mast to the structure helps absorb any movement caused by wind or other external forces, thus reducing the risk of damage to both the service mast and the connected electrical systems.

While other choices might seem relevant, securing to the ground does not provide the necessary support against lateral forces, and attaching it directly to a utility pole or power line does not align with safety standards and regulations in electrical installation. Adhering to these securing specifications is essential for the longevity and reliability of the electrical installation.