What governing factor determines whether working space is required around service equipment?

The correct choice relates to the concept of accessibility for maintenance, which is a crucial reason for establishing working spaces around service equipment. Proper accessibility ensures that technicians can safely and effectively perform necessary maintenance, repairs, and inspections on electrical equipment without risking injury or hindrance. This principle is reflected in various safety standards and regulations, which emphasize the importance of having adequate clearance around components to facilitate maintenance operations.

When it comes to working space requirements, local electrical codes may dictate specific regulations, but the fundamental governing factor remains the necessity for sufficient space to allow for safe and accessible maintenance. The type of electrical equipment may influence the dimensions of the required workspace, but ultimately, it is the accessibility for maintenance that is the primary consideration. Size of the installation also plays a role in how much space is needed but is subordinate to the essential requirement of ensuring that maintenance can be performed effectively and safely.