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For immediate release 22 September 2005 ADDENBROOKES’ PATIENTS BENEFIT FROM EMERGENCY SOUND OPERATION
The two Caterpillar diesel standby generators were to be installed in a plant room directly beneath the Intensive Care recovery ward, with noise attenuation being a critical aspect of the project. The objective of the project was to maintain the best possible environment for patients should a national grid power failure occur. Simon Lewis is Facilities Manager at Addenbrookes for whom having standby generators in place is a crucial risk management strategy. "The acoustic spec on this project was very stringent at NR40 in the ward above, that's little higher than the level of ambient noise or bird song. We have regular test runs of these standby generators and overall I'd say the sound attenuation has been very successful." IAC installed two acoustic enclosures constructed using our high performance acoustic Noiselock panels, with compatible inlet and discharge air attenuators. The secondary acoustic ceiling would also minimise noise transmission from the generators to the ward above as well as provide much needed sound absorption in the generator room. IAC Boët Stopson engine exhaust silencers were also supplied as part of the turnkey package. Gordon David is IAC’s Business Manager, Power: "The acoustic spec on this job was particularly demanding, and it wasn’t helped by the prefabricated nature of the building’s structure. Being able to supply all elements of a job like this is our strength. We were very pleased with the spec achieved." The resultant noise levels attained are: NR40 in the recovery ward above; 66dBA inside the generator plant room itself; and 66dBA at 1m from inlet and outlet attenuators. Chris Connors, Sales Manager, Power Projects, Finning (UK) Limited said: "The challenge of Addenbrookes was significant. A low plant room ceiling, a tight noise limit … and a patient ward immediately above. Working with Finning, our acoustics and ventilation subcontractor, IAC, helped us to deliver the optimum solution for the project and satisfy the client’s brief." For more information on IAC’s noise attenuation solutions for diesel and gas gen sets, visit www.iacl.co.uk or call Gordon David at IAC’s Colchester office on 01206 865987 gordond@iacl.co.uk ENDS For further press information please contact Sally Davis in the IAC Press Office on 023 9266 1600 sally@theprdepartment.co.uk
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IAC of Winchester,
global leader in noise control, was called in by Finning (UK) Limited
to supply noise control solutions for emergency stand by generators within
Addenbrookes hospital in Cambridge. 
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