> On 02/07/2020 11:43 AM, N wrote: > > Are however not sure the westinghouse system is better > > there pressure is loaded then breaks are not used. First > > time I heard about the accident there an oil train have > > crashed then driver was sleeping and left engine on > > locomotive running I thought driver was drunk. Later > > however I learned fire department put out fire and did not > > know it should be running to keep pressure up, this system > > is still allowed? Or I got it wrong? > Yes, the catastrophe was in Canada where a freight train > loaded with oil tank cars was parked on a weekend, the > locomotive engines were left running so the parking brake > would continue to hold. There was no crew on the train. > One of the locomotives caught fire, the fire crew was called > and put it out, and they shut off both locomotive engines. > About 8 hours later the air tanks leaked down, and the train > rolled downhill and crashed on a curve, essentially burning > an entire small town to the ground. > > As far as I know, the air brake system on trains has not > been changed very much in the last hundred years, it was > used on steam locomotives before Diesels.
Have seen example on youtube there a canadian train break in two there breaks are automatically applied on the last wagons so they stop. Have also seen some movies/examples of runaway train from USA but do not think this is a big problem in other countries. Tried to find information on train brakes in Sweden, compressed air is used to release break, think a spring is used to apply brake but failed to find information. I however know there is some kind of system to realese brakes so they could roll on there own then split and building new trains, it is common a small hill is used for this to get wagons slowly rolling, there is a switch so they could not get out onto ordinary track in this case, maybe some other limitation. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
