What is the main risk associated with not using dead front equipment?

Using dead front equipment is critical in minimizing the risk of electrical shock. Dead front equipment is designed so that all live components are enclosed, providing a barrier that protects users during operation and maintenance. When dead front equipment is not utilized, there is an increased risk that personnel could inadvertently come into contact with energized parts, leading to severe electrical shock hazards. This is particularly important in environments where workers may be interacting with switchgear, transformers, and other electrical components.

The other options, while they can arise in electrical systems, do not directly relate to the immediate safety concerns posed by exposure to live circuitry. Reduced energy efficiency, higher installation costs, and frequent maintenance issues consider different aspects of electrical equipment and systems that do not primarily emphasize the critical safety concern associated with potential electrical shock.