What is the standard pantograph configuration on the leading unit under a double Pantograph order?

• A. Both Pantographs Up on the leading unit.
• B. Only the front Pantograph Up.
• C. Both Pantographs Down.
• D. Rear Pantograph Up.

Answer: (A)

When a double pantograph order is in place, the leading unit should have both pantographs raised. This setup provides reliable and continuous power pickup from the overhead catenary by using two contact points, which improves current collection and reduces the risk of losing power if one pantograph encounters a poor contact, arc, or height variation. It also offers redundancy and better load distribution across the pantographs as the train moves.

Raising only the front pantograph would eliminate redundancy and raise the likelihood of power interruptions if that pantograph loses contact. Having the pantographs down would eliminate power pickup entirely, and raising the rear pantograph on the leading unit isn’t standard practice in a double pantograph configuration.