Sector D Gallery Sounders
Location: The British Museum, Bloomsbury, London WC1
Duration: 12 weeks
Commissioning included testing of sound pressure levels and equalisation of the output to achieve best results. Tyco Fire & Integrated Solutions tested the Speech Transmission Index (STI) within each of the galleries and produce a report showing the levels of speech intelligibility for each gallery to meet with the Museum’s requirements.
Testing and commissioning were completed outside normal working hours and supervised by the Alpine Works project team.
All system cabling, and galleries identified as ‘full’ VA, conforms to the requirements of BS 5839 Pt 8: 2008 and is fully compliant with the requirements of the Museum’s FAEL Harmonisation Document. Prior to completion, full functionality of all VA and associated systems was demonstrated in the form of a Site Acceptance Test.
The project was challenging in many respects due to the high level working within galleries from MEWP’s and the night roof works installing long runs of MICC cabling on new and existing containment routes.
The works was carried out in two phases: the installation of circuit cabling between the amplifiers and building entry points at roof level was carried out during the day and the gallery works were undertaken at night.