What is the recommended maximum resistance to ground for a vessel grounding system?

The recommended maximum resistance to ground for a vessel grounding system is 5 ohms. This standard ensures adequate safety and effectiveness in dissipating electrical faults or static electricity that may accumulate on the vessel. A grounding resistance of this level helps minimize the risk of electrical shock, reduce the potential for sparks, and mitigate fire hazards, particularly in environments where flammable materials might be present.

This specification is based on the understanding that lower resistance to ground allows for a more efficient path for fault currents, enhancing the overall safety of the vessel. It is crucial for maintaining personnel safety and ensuring operational integrity when dealing with various pressures and substances within pressure vessels. Adhering to this recommendation helps create a densely secure grounding system that is essential in protecting both equipment and human lives.