13
The Specialist Inspectors response
§
FMEDA report was over 10 years old and doesn’t
suitably consider any subsequent issues
§
Operating hours detailed for v3.22, installed
version in V3.8
§
Generic Prior Use argument by 3
rd
party unlikely to
satisfy in regard to operating experience/ reliability
claims
§
Areas within the report are qualitative in nature
and not site/ operating environment specific and
are significantly out of date
§
Company advised to consider alternate measures
§
HSE Specialist Inspector said ‘No’ to the SIL 2
certificate
©ABBGroup
October23,2016|Slide25
©ABBGroup
October23,2016|Slide26
Who is BS EN 61511 written for?
§
The manufacturers are using a concept specified for equipment users
Manufacturers
and suppliers
of devices
BS EN 61508
Process Sector
Safety Instrumented
System Standards
Safety
instrumented
systems
designers,
integrators and
users
BSEN 61511