The OSNA ERU (Earthing Relay Unit) or Earth Fault Relay is a specialized device designed to ensure proper and effective grounding during the filling process of inflammable liquids for transportation or storage. Its primary function is to prevent static voltage buildup that could lead to explosions.
The purpose of grounding is to provide a safe path for static electricity to dissipate into the ground, preventing it from accumulating on the vehicle or container. By grounding the vehicle or container, the static voltage is effectively discharged, reducing the risk of ignition or fire.
The OSNA ERU offers reliability and assurance by providing a true and correct grounding system. It is specifically designed for loading operations across various applications, including tank trucks, rail cars, and aircraft refuelers. By utilizing the OSNA ERU, loading operators can ensure maximum safety during the loading process.
The device is equipped with features that facilitate safe grounding. It monitors the electrical continuity between the ground connection and the vehicle/container being filled. If any fault or interruption is detected, the OSNA ERU triggers an alarm or initiates an automatic shutdown of the loading operation, preventing unsafe conditions.
The OSNA ERU is designed to comply with safety standards and procedures related to handling inflammable liquids. Its implementation ensures that the static voltage generated during the filling process is effectively controlled, minimizing the risk of explosions or accidents.
It is important to note that while the OSNA ERU provides a reliable grounding solution, it should be used in conjunction with other safety measures and procedures. These may include proper handling and storage of inflammable liquids, adherence to relevant safety regulations, and training of personnel involved in the loading operations.