Safety analisys

[Aryldo Russo]

Hi,

I don't know if you could help me, but I will try anyway. I'm performing a Safety analisys and I'm trying to asset risk categories to hazards I detected. I have no problem with severity but, I don't know what time "t" do I have to use to calculate the probability of that event to occour. do I vahe to use the mission time? this is a railway subsystemm the mission time to be consider should be the operational time? (for example 18 hours, that's the time the train is really used).

could you help me with this?

another thing, does anyone know where I can find the EN 50126 standard for buy and download?

Thanks

Aryldo

[Pantelis]

It depends on how you are assessing the risk. If your analysis is for a single mission then I would use mission time.

As for EN 50126 – I am aware of it. Is there another name? Who published it?

[Pantelis]

Typo - correction...

The last line should read

As for EN 50126 – I am NOT aware of it.

Sorry