What is the minimum free space requirement around a transformer?

The minimum free space requirement around a transformer is 30 inches. This clearance is crucial for several reasons, primarily to ensure safe operation and maintenance access. Adequate spacing allows for proper ventilation, which helps prevent overheating and allows for heat dissipation. It also facilitates maintenance activities, reducing the risk of injury or accidents by providing the personnel safe access for inspections and repairs.

In addition, this clearance helps to ensure compliance with safety codes and regulations, which are designed to protect both the equipment and personnel working nearby. Maintaining this minimum clearance can also prevent potential electrical hazards caused by nearby structures or equipment, further enhancing safety. Thus, adhering to the 30-inch clearance requirement is essential for the reliable and safe functioning of transformers in electrical installations.