Stopping electric equipment with Pantographs up in section breaks is?

• A. Prohibited.
• B. Allowed with a caution signal.
• C. Allowed during daylight.
• D. Allowed if pantographs are lowered with a signal.

Answer: (A)

Pantograph up means the train is still connected to the overhead electric supply. Section breaks are gaps where power to the overhead is opened to isolate a part of the line. Stopping with the pantograph up in a section break keeps the train linked to a live or transitioning circuit, which can cause arcing, electrical faults, or damage to equipment, and it creates hazards for personnel working on or near the track. For safety, the pantograph must be lowered before stopping in a section break to ensure the train is electrically disconnected and the section can be isolated without risk. That's why stopping with pantographs up in section breaks is prohibited. Other options imply signals or conditions that don’t reliably make it safe, so they aren’t allowed in this situation.