New York State Master Electrician Practice Exam

The minimum size for access openings in a manhole is established to ensure that workers can safely and easily enter and exit the manhole while also providing enough space to maneuver tools and equipment. A 26-inch opening meets these requirements by balancing accessibility with structural integrity.

Access openings smaller than 26 inches may restrict movement and increase the risk of accidents or injuries when workers are entering or exiting. Additionally, larger openings maintain structural strength and prevent collapse of the manhole walls while providing ample space for necessary inspections and repairs.

It's also essential to consider safety regulations and standards that outline these specifications, helping to ensure that all work performed within manholes adheres to best practices in electrical and construction safety. Adhering to the proper dimensions for access openings helps promote a safer working environment and compliance with relevant codes and safety regulations.