All ground connections that are buried or non-accessible must be?

The requirement for all ground connections that are buried or non-accessible to be brazed or welded arises from the need for a permanent and robust connection. Brazing or welding ensures that the connection is both mechanically strong and electrically conductive, providing reliability that is critical for grounding systems.

These methods create a bond that can resist the effects of moisture, soil movement, and corrosion more effectively than simpler connections. In inaccessible installations, any potential failure of a connection could lead to safety hazards and operational issues, making it essential that these connections are completed with methods that guarantee durability and longevity.

Other connection methods, such as clamping or basic soldering, may not provide the same level of effectiveness over time, particularly in varying environmental conditions typically found underground. Insulation alone does not guarantee proper grounding and could create unsafe situations if not paired with a solid connection method. Thus, brazing or welding is the preferred method for reliability and safety in buried connections.