Which of the following describes the main role of a safety device in explosive ordnance?

The primary role of a safety device in explosive ordnance is to minimize the risk of accidental detonation. Safety devices are integral components of explosives, designed to prevent unintended activation that could arise from various factors, such as environmental conditions, physical handling, or mechanical failures. By incorporating safety mechanisms, such as fuzes that require specific conditions to function or safeguards that prevent unauthorized access, the risk associated with handling and transporting explosives is significantly reduced.

These devices are crucial in ensuring the safety of both personnel and equipment, allowing for controlled usage of ordnance in combat or training situations. While other options touch upon aspects related to explosives, they do not accurately reflect the core purpose of safety devices, which is fundamentally about preventing dangerous situations that could lead to unintended explosions.