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Safety controls are typically drawn to the left of the loads on an electrical schematic diagram. This convention is rooted in the standard practice of diagramming, as it allows for a logical flow of information. By placing safety controls on the left, the schematic reflects the order of operation where the power source and controls are positioned before the loads they manage.

This arrangement makes it easier for technicians and engineers to trace the circuit from power supply through safety mechanisms and controls, ultimately to the loads. The intention is to highlight the importance of safety measures in relation to operational components. This layout signifies that safety controls are the initial point in addressing circuit protection, ensuring that any potential hazards can be mitigated before power reaches the loads.