What is the timing requirement for the deadman control during pantograph flushing procedures?

The timing requirement for the deadman control during pantograph flushing procedures is established to ensure safe and effective operation. Requiring a 10-second timing before shut-off allows for a consistent and safe transition from operation to stop. This duration is critical because it provides ample time for the system to stabilize and for operators to respond to any unexpected conditions or issues that may arise during the flushing process.

Following the 10-second timing ensures that all components have the opportunity to complete their functions effectively while minimizing the risk of equipment damage or operational failures. It balances operational efficiency with safety, which is paramount in maintenance procedures like pantograph flushing.

Options offering shorter or longer timeframes may not adequately address the necessary response time for operators or the technical requirements of the flushing process, making the 10-second requirement the most suitable and effective choice.