How far must the person conducting a test for a wireless transmitter/receiver shutoff system stand from the cargo tank?

The requirement for the distance a person must stand from a cargo tank while conducting tests on a wireless transmitter/receiver shutoff system is 150 feet. This distance is established to ensure safety, as it minimizes the risk of injury or accident in the event of an unforeseen incident during testing. The NFPA 58 code emphasizes the need for safety precautions in operations involving liquefied petroleum gases, particularly when dealing with equipment that can control or influence the handling of these flammable substances. Maintaining a distance of 150 feet allows for sufficient space to react appropriately while also ensuring that personnel are not in proximity to potential hazards associated with fuel leaks, explosions, or other dangerous situations that could arise during the testing phase.