During a switching operation, if you notice a loss indication after opening one end, what should you do?

When a loss indication is observed after opening one end during a switching operation, it is crucial to suspend the switching operation and verify the indications. This step is vital for several reasons.

First, a loss indication may signal an unexpected condition in the system, such as a fault or an unexpected load change that could lead to unsafe conditions if the switching continues. By suspending the operation, operators can take the necessary time to investigate and assess the situation. This might include checking protective relay settings, verifying readings from monitoring equipment, and ensuring that there are no other disturbances in the network.

Additionally, confirming the indications ensures that the personnel involved have a clear understanding of the system's status before proceeding. This cautious approach enhances safety for both the personnel and the reliability of the electrical grid, preventing potential hazards or damage to equipment and infrastructure.

Taking immediate action, such as closing the circuit or continuing with the operation without verification, could escalate the situation or lead to further complications. Thus, suspending the operation and performing a thorough verification aligns with best practices and protocols established by the North American Electric Reliability Corporation (NERC) for safe switching operations.