What must poles over 20 ft. in height that support luminaires contain?

Poles that are over 20 feet in height and support luminaires are required to contain an accessible hand hole. The hand hole is an important feature because it provides access to the internal wiring and components of the pole for maintenance and troubleshooting purposes. This accessibility is crucial for ensuring safety during maintenance activities, allowing workers to easily reach and manage electrical connections without the need for extensive and potentially hazardous procedures.

While other features like safety locks or electrical disconnects are relevant in certain contexts, they are not specifically mandated by the NEC for poles supporting luminaires. An accessible hand hole addresses the need for efficient and safe operations during maintenance, reflecting best practices in electrical safety and code compliance.