What is the minimum clear work space required where cables are only on one side?

The minimum clear work space requirement where cables are only on one side is set to ensure safe access for electrical work and maintenance. A clear work space of a minimum of 2 feet allows electricians to effectively perform their tasks without the risk of accidental contact with live electrical components or being restricted in movement. This space ensures compliance with safety practices, such as maintaining a safe distance from energized parts, avoiding overcrowding, and enabling the technician to operate tools and equipment safely. This 2-foot requirement represents the balance between adequate accessibility and safety measures, aligning with the guidelines outlined in the NEC for maintaining a functional environment while working on electrical systems.