I thought in the 2015 incident the operator Jerry-rigged the deadman, so either they failed to un-rig the deadman or the deadman switch was defective and they never fixed it!
Moderators: CRail, sery2831
Commuterrail1050 wrote: ↑Wed Jun 22, 2022 8:37 am No smoke or flames that I’m aware of. However, I did see a picture of the affected car dark which tells me that it couldn’t move because of the loss of battery power. Not 100% sure and I’m not stating this as a fact.Not sure how it works on transit cars but I use substation applications the batteries provide power to the relays and control circuits. So if there is a loss of AC power the control circuits are still powered. On transit cars the control side is low voltage, I wouldn't want 600 volts on the hand controller, so if you batteries are flat your flat. Plus the batteries provide emergency lighting.
jwhite07 wrote: ↑Wed Jun 22, 2022 7:43 am Anyone know the nature of this "battery failure"? Was it defective battery that prevented the car from operating, or was it battery failure like smoke, flames, Roman Candle kind of battery failure?The Globe is reporting it as a likely battery explosion, which is really the only thing that makes sense.