When is a brake pipe leakage test required?

A brake pipe leakage test is required when adding cars that have not been pre-tested due to safety protocols and regulations governing train operations. The integrity of the brake system is crucial for safe train handling, and any new cars introduced to the train consist must be verified for proper function before the train is operated. By performing a leakage test on these cars, you ensure that the brake system is responsive and that there are no leaks that could prevent effective braking action.

In terms of safety procedures, it is vital to check the brake functionality of each car to prevent potential accidents caused by brake system failures. The test verifies that the entire brake system is cohesive and will work as intended when needed.