Which procedure must be performed first before a hot check can be conducted?

Before conducting a hot check, it is essential to perform a cold check first. The cold check involves evaluating and inspecting the equipment or system under non-operational conditions. This procedure ensures that all components are functioning properly and that there are no anomalies before transitioning to a hot check, which involves operating the systems or equipment under potentially hazardous conditions.

By completing the cold check first, teams can identify any apparent issues that could lead to safety concerns or equipment malfunction during the hot check. This step is critical for maintaining safety standards and ensuring that the equipment is ready for operational testing. Without this preliminary assessment, the hot check may not be safe and could pose risks to personnel and equipment.