What equipment is typically switched on during IG operations?

During inert gas (IG) operations, the equipment that is typically switched on is the inert gas fans. These fans are crucial for generating and distributing the inert gas within the cargo tanks to maintain a safe atmosphere by displacing flammable gases, thereby reducing the risk of fire or explosion during loading or unloading of cargo.

Inert gas systems introduce non-flammable gas (usually flue gas or nitrogen) into the cargo space, and the fans play a vital role in ensuring that this gas is evenly spread throughout the tank. By effectively ventilating the tank with inert gas, the system helps to maintain the desired levels of oxygen and prevent any accumulation of vapors that could lead to dangerous conditions.

While other equipment such as cargo pumps, heating coils, and pressure sensors play important roles during cargo operations, they are not specifically activated as part of the IG operations. Cargo pumps are used for transferring liquids, heating coils for maintaining temperature, and pressure sensors for monitoring the pressure within the system; however, their functions are distinct from the specific objective of ensuring an inert atmosphere, which is primarily the responsibility of the inert gas fans.