Betekenis van:
brake failure
brake failure
Zelfstandig naamwoord
- brakes fail to stop a vehicle
Hyperoniemen
Voorbeeldzinnen
- Brake failure
- This warning may be combined with a device provided to warn of brake failure if the brake system uses the same energy source.
- If an energy source failure occurs, service braking performance on the first brake application shall achieve the values given in the table below.
- This is with the understanding that the safe operation of this type of brake can be assured and is not affected by any single point failure.
- After any failure in the steering equipment, or the energy supply, it shall be possible after eight full stroke actuations of the service brake control, to achieve at the ninth application, at least the performance prescribed for the secondary (emergency) braking system (see table below).
- It is permissible to include the contribution of brakes independent of wheel/rail adhesion in the braking performance defined in clause 4.2.4.1. This is with the understanding that the safe operation of this type of brake can be assured and is not affected by any single point failure.
- Brake system as specified in clause 4.2.4.3 Derailment detection as specified in clause 4.2.3.4.11 Fire detection as specified in clause 4.2.7.2.3 Failure of the driver vigilance device as specified in clause 4.2.7.8 Control-command and signalling subsystem information as specified in clause 4.2.7.9 This monitoring of the functions and equipment shall be continuous, or at a frequency to ensure reliable detection of failure. For Class 1 trains the system shall also be linked to the on-board diagnosis data recorder to allow traceability. For all classes of trains the recording related requirements for control-command and signalling subsystem as described in the Control-Command and Signalling TSI 2006 are mandatory. Indication to the driver shall be made of such detection, and shall require reaction by the driver. Appropriate automatic braking shall be required where a functional failure occurs on the driver vigilance device or on the control-command and signalling subsystem onboard the trains. 4.2.7.11. Particular specification for tunnels 4.2.7.11.1. Passenger and train crew areas equipped with air conditioning The train crew shall be able to minimise the distribution and inhalation of fumes in the event of a fire. For this purpose it shall be possible to switch off or close all means of external ventilation and switch off air conditioning. It is permissible to trigger these actions by remote control per train, or at the level of a single vehicle. 4.2.7.11.2. Public address system Requirements for communication systems are specified in clause 4.2.5.1.