[SystemSafety] SIL ratings to be scrapped?
Dominey, Alan (UK)
alan.dominey at baesystems.com
Wed Aug 21 17:58:33 CEST 2013
I think there may have been a misunderstanding somewhere along the way here.
UK MoD implemented the use of SILs into many of their projects a few years ago and these are now being replaced by
SIRs - Safety Integrity Requirements ( High / Medium / Low) . . . Don't know if this is a pointer in any direction . . .
Many Thanks
Regards
Alan
Alan G. Dominey
Electrical Safety Engineer
Torpedo Capability Contract Project Surveillance Manager
Spearfish Safety Group
+ BAE Systems, Maritime Services
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From: systemsafety-bounces at lists.techfak.uni-bielefeld.de [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Chris Hills
Sent: 21 August 2013 15:26
To: 'Bielefield Safety List'
Subject: [SystemSafety] SIL ratings to be scrapped?
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Hi all,
I have just been taking to one of my customers who do control systems for industrial systems. They have been told by someone they are doing a system for that SIL ratings will "soon be scrapped". Apparently "It will be replaced by ALARP". This seems like a completely misunderstood half a message. Though usually on this sort of thing there is a grain of reality (if miss reported or miss represented) in there somewhere.
I know I have not been paying attention over the summer but I haven't seen anything. Is there a move on any standard to change from SIL ratings for projects?
Regards
Chris
Eur Ing Chris Hills BSc CEng MIET MBCS FRGS FRSA Technical Specialist
Phaedrus Systems Ltd Tel: FREEphone 0808 1800 358
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Http://www.phaedsys.com<http://www.phaedsys.com/> chills at phaedsys.com<mailto:chills at phaedsys.com>
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