What must the Engineer/employee do when sleet formation on the Pantograph or Catenary System causes excessive arcing?

• A. Promptly report the condition to the train Dispatcher/Power Director.
• B. Notify only the conductor.
• C. Continue operating at reduced speed without reporting.
• D. Power down and evacuate the cab.

Answer: (A)

When sleet causes excessive arcing on the pantograph or catenary, the priority is to alert the power/control authorities immediately. This abnormal electrical condition can lead to equipment damage, power loss, or fire, so swift communication allows the Dispatcher/Power Director to take protective actions—such as adjusting or de-energizing sections of the system, guiding the train’s movement, or dispatching maintenance to assess and clear the issue. Simply notifying the conductor or continuing at reduced speed without informing the power authority leaves the electrical problem uncoordinated and can worsen the risk. Powering down and evacuating the cab is reserved for an immediate, clear danger; otherwise, following established reporting procedures ensures a safe, controlled response.