What is the order of connection for the ground-end clamp of a jumper?

The correct answer is based on safety protocols for grounding practices in electrical work. When connecting jumpers, the ground-end clamp should be the first connection made to ensure that the system is safe before any other connections are established. Conversely, when it is time to remove the equipment, the ground-end clamp should be the last component disconnected. This practice minimizes the risk of electric shock or short circuits during the operation.

By making the ground connection first, you provide a safe path for electrical potential to dissipate, thereby protecting personnel from hazards. Similarly, removing the ground connection last ensures that, until the very final moment, there remains a grounded state minimizing exposure to live electrical parts, enhancing safety throughout the process. This fundamental principle is crucial for maintaining a safe working environment when dealing with electrical equipment or systems.