Tender Summary

The Pirbright Institute Brooksby Building - SIL 1 HVAC Shutdown System from Overpressure and Underpressure Hazard Scenarios

Buying Organisation

THE PIRBRIGHT INSTITUTE

Contract Value

£80,000 to £100,000

Suitable for SMEs

Yes

Suitable for VCSEs

Yes

Tender Description

Following a Layers of Protection Analysis (LOPA), The Pirbright Institute requires the design and construction of a safety system that detects overpressure and underpressure of various areas and rooms in the Brooksby facility. The system subsequently responds by shutting down the ventilation system by turning off supply and extract fans. As per Functional Safety standards IEC 61508 and IEC 61511, Pirbright requires this system to be reliable to Safety Integrity Level (SIL) 1. Safety Requirement System (SRS) attached at the back of this document for more detail.

Pirbright expects that the designer will have good awareness of the above-mentioned functional safety standards, and to be able to carry out their activities in adherence to the functional safety lifecycle phases as per IEC 61511. A non-exhaustive list of typical deliverables for such a project is as follows:

Data sheets for all sensing elements (e.g., level switch), logic solvers and all final elements (e.g., valves)
Bill of Materials (BoM) for all materials and accessories to be purchased
Quotations for all required materials
Functional logic diagrams (if required)
I/O lists
Functional Design Specifications (FDS)
Loop diagrams
Instrument wiring diagrams
Electrical wiring diagrams
Control panel layout and drawings
Safety Integrity Level (SIL) Verification report
SIL certifications for all relevant hardware (if available)
Factory Acceptance Test (FAT) procedures
Site Acceptance Test (SAT) procedures
Safety Instrumented System (SIS) installation and commissioning plan
SIS validation plan
Safety manuals
Proof test procedure
Spare parts list
Assets' register ready for upload to Pirbright Computerised Maintenance Management System (CMMS).

Tender categories (products & services required)

Ventilation installation work (CPV 45331210)
Inspection of ventilation system (CPV 71315410)
Ventilation consultancy services (CPV 71321400)
Construction-site supervision services (CPV 71521000)
Construction consultancy services (CPV 71530000)

Region

United Kingdom (UK)

Buyer Information