What is the minimum size for an accessible hand hole in a metal light pole?

The minimum size for an accessible hand hole in a metal light pole is typically established based on the need for maintenance access and the ability to work with electrical connections safely. A dimension of 2 inches by 4 inches is commonly specified because it allows sufficient room for a person's hand to fit inside the pole comfortably, enabling access to wiring and other components for installation and repair tasks.

This particular size facilitates the movement of tools and provides enough space to manipulate wires or other components without being overly restrictive, ensuring that maintenance personnel can perform their duties effectively.

Larger sizes may be specified in some codes or guidelines to accommodate larger tools or for more extensive repairs, but the 2" x 4" size is often recognized as a standard minimum for basic accessibility. The other potential options, while larger, exceed the minimum requirement, which is sufficient for general access and maintenance tasks in most scenarios involving light poles.