What is an acceptable location for the attachment of a service-drop or overhead service conductor to a service mast?

The correct choice indicates that the attachment of a service-drop or overhead service conductor to a service mast must occur at a point above the last securement to the building. This requirement ensures that the conductor is properly secured and protected from mechanical damage, which is crucial for both safety and reliability in electrical installations.

When the attachment point is at or above the last securement, it helps to minimize stress on the conductor and supports proper tensioning. This practice is in line with National Electrical Code (NEC) guidelines, which prioritize safety by reducing the risk of falls or damage that can arise from movements or other environmental factors.

Selecting locations below the last securement could lead to vulnerabilities, such as increased risk of the conductor being snagged or damaged. Additionally, proper height and securement prevent potential hazards from occurring, ensuring compliance with safety standards.