Which of the following is NOT a precaution when using oxygen systems?

Using electrical equipment near oxygen is indeed a practice that should be avoided. Oxygen is an oxidizing agent, and its presence increases the risk of fire and explosions, particularly when electrical equipment is involved. Electrical sparks or arcs can ignite any combustible materials in the vicinity, leading to dangerous situations.

In contrast, storing oxygen systems in cool, well-ventilated areas, keeping them away from flammable materials, and regularly inspecting equipment are all essential precautions to ensure safety when handling oxygen. These practices help to minimize the risks associated with using oxygen systems and enhance overall operational safety.