Long Trains test bench Following the American growing ... - UIC

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LTTB – DB train comparison in Service The time difference between the two curves (anyway acceptable) is due to the different Driver’s Brake Valves used on the different systems: The DB measurement is done using a DB locomotive, while the LTTB measurements have been done using the SNCF approved PBL-91, which is submitted to different requirements and is a little faster. The next picture shows two couples of curves: one couple is a comparison between the SAB-Wabco France TTB and the LTTB in the same configuration, the other coupe is the comparison between the SNCF mixed configuration train and the LTTB equal configuration. In this case the PBL-91 has been always used, and the superimposition of the curves is quite evident, so confirming the full representativness of the LTTB.
LTTB – SNCF train comparison The next picture shows the comparison between the two SAB-Wabco devices in 1200m. equal configuration and the ERRI B 126/RP 25 curve. LTTB – ERRI curve comparison No reference is today available about a train 2250m. UIC brakes equipped, at least in a configuration suitable to be compared with an equivalent SAB-Wabco Italy LTTB.
Page 1 and 2: Long Trains test bench Following th
Page 3: SAB-Wabco “Eurotrol” with elect
Page 7 and 8: Accelerating chambers wave propagat
Page 9 and 10: LCU’s installed on the LTTB The t

Long Trains test bench Following the American growing ... - UIC

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