In a two-line braking system, what is the effect of a rupture in the emergency line to the trailer?

In a two-line braking system, if there is a rupture in the emergency line to the trailer, two important effects occur.

First, the trailer will automatically engage its brakes as a safety measure to prevent it from becoming detached and to maintain control. This is crucial because it prevents the trailer from rolling freely, which could cause accidents.

Second, the air supply to the trailer is sealed off from the broken emergency line. This ensures that the loss of pressure does not affect the remaining braking system, allowing the truck to maintain some level of braking function.

Both of these effects are critical in maintaining safety on the road, as outlined in German traffic regulations regarding vehicle safety and braking systems. Understanding these aspects is essential for ensuring compliance with regulations and preventing accidents in the event of a brake failure.