Tyco Fire Protection Products showcased its experience in water mist suppression options at the International Water Mist Association (IWMA) Conference in Istanbul. Dr Tim Nichols, Sales Director Water Mist EMEA, gave a presentation entitled ‘Fire Protection of Compact Archive Storage using Water Mist’, the place he discussed how the extinguishant is properly suited to the safety of irreplaceable works and artefacts in highly priceless buildings.
Tim’s lecture centered on a fireplace take a look at protocol that was formulated to verify the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historical building, house to treasured archive storage. The National Fire Protection Association (NFPA) 750 commonplace requires that, when employing a water mist suppression system, fireplace testing is undertaken pertinent to the risk. However, of the printed hearth test protocols listed in NFPA 750, none details the necessities for archives that contain curler (compact) racking. Many of the racks within the targeted building are of the ‘roller’ type, which limit the amount of space for constructing companies, together with those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to include take a look at rig and format, take a look at type, fire load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and security procedures (for instance, the hearth brigade). The related efficiency primarily based hearth exams had been then designed to duplicate the vary of application parameters associated with archive storage.
While ignition sources on the original web site have been recognized to be minimal, and the main hearth supply confirmed as arson, the multi-level constructing poses quite a few challenges that had to be thought of when formulating the hearth check protocol to ensure efficient protection. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute in path of the confined setting of the archive storage basement stage. Items are stored in a mix of open racks and compact racks, which supply less than a 150mm gap between themselves and the ceiling, and there may be limited on-site water storage. Pre-test threat analysis also highlighted restricted access and exits under and above floor, so it is important for storage space to be maximised and protected egress supplied in case of the event of a fireplace. In addition, the extremely useful nature of the storage contents meant that the chosen fire suppression answer had to make sure minimal harm to these historic gadgets.
To achieve validation, the exams needed to meet varied objectives. These comprised rapid control of the fireplace inside a prescribed space (in this case, outlined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral harm via water clean-up. They additionally had to keep in mind varied parameters, including the desired excessive stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined according to a method based mostly on the quantity of nozzles activating throughout testing.
The fireplace checks, carried out for each open and curler racks with minimal storage gaps, had been undertaken in a personalized test rig, designed, built and fitted to replicate the exact specification, racking preparations and storage supplies of the site. Considered a excessive load, the gas supplies have been similar to that present in archive storage, together with paper, books, micro-film and CD circumstances.
Success was outlined by pass or fail criteria and determined by detailed quantitative measurements on system configuration, hydraulic analysis, discharge pressure, discharge sequence, fireplace unfold, temperature, hearth harm and water consumption. In each tests, Tyco’s AquaMist system operated successfully and was observed to suppress and control the fire effectively. The project staff was impressed by the dearth of fire and smoke injury to the supplies and structure and the product has since been put in within the building in query.
“The IWMA conference is a unbelievable alternative to spotlight the advantages of water mist as a fire suppression solution, as nicely as demonstrate its versatility in a broad range of functions,” comments Dr Tim Nichols. เกจวัดแรงดันpcp Identifying a gap out there and taking the chance to formulate a fireplace take a look at protocol for archive storage enabled us to validate the skilled capabilities of our AquaMist system and facilitate protection of a customer’s extremely priceless assets.”
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