What is required for conductors of intrinsically safe circuits to prevent loose terminals from contacting one another?

In intrinsically safe circuits, preventing loose terminals from contacting one another is essential to ensure safety in hazardous locations. Conductors must be secured to minimize the risk of accidental disconnection or movement that could lead to unintended contact between terminals. Properly securing conductors helps prevent the generation of sparks or arcs that could ignite flammable substances in the environment.

Insulating conductors is indeed important, but it does not address the issue of physical movement or connections that can occur in loose wiring. Grounding can help provide a safe path for any fault currents, but it does not directly prevent terminals from touching each other. Labeling serves to identify circuits, yet it does not contribute to the physical security of the terminals themselves.

Securing conductors thus stands out as the necessary measure that specifically addresses the concern of loose terminals, ensuring operational integrity and safety in potentially explosive atmospheres.