What requirement is specified for ground connections in industrial specifications?

The requirement that ground connections must be brazed or welded is fundamental in industrial specifications to ensure the integrity and reliability of the electrical grounding system. Brazing or welding creates a strong, permanent connection between grounding conductors and grounding electrodes, which ensures that any fault current is effectively and safely conducted away. This method minimizes the risk of mechanical failure at the joint, which could lead to increased resistance or even disconnection, potentially creating hazardous electrical situations.

In industrial settings where safety and operational stability are critical, maintaining a low-resistance ground connection is paramount to protect equipment and personnel from electrical faults. Using temporary or weaker connections, such as those that could be easily disconnected, undermines the safety measures intended in electrical installations. Therefore, the emphasis on having ground connections that are brazed or welded aligns with industry standards for safety and performance.