Is it permissible for the train crew to raise or lower the pantograph at all locations?

The correct response highlights that raising or lowering the pantograph is not allowed at all locations, and exceptions are made only in emergencies. This is primarily due to safety and operational protocols that govern where and when the pantograph can be adjusted.

Raising or lowering the pantograph should be done in designated areas where overhead clearance and other safety considerations have been evaluated, ensuring that the action will not cause any hazards to either the train crew or the railway infrastructure. This practice helps avoid potential accidents or equipment damage that could result from adjusting the pantograph in uncontrolled or risky environments.

In non-emergency scenarios, strict regulations ensure that trained personnel only perform such actions where it is deemed safe and appropriate. This further protects both the crew's safety and the operational integrity of the train service.