Tyco Fire Protection Products showcased its expertise in water mist suppression solutions 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’, where he mentioned how the extinguishant is properly suited to the safety of irreplaceable works and artefacts in highly priceless buildings.
Tim’s lecture centered on a fire take a look at protocol that was formulated to confirm the performance and use of Tyco’s own water mist solution, AquaMist, in an historic building, home to precious archive storage. เพรสเชอร์เกจลม (NFPA) 750 commonplace requires that, when using a water mist suppression system, fireplace testing is undertaken pertinent to the risk. However, of the published hearth check protocols listed in NFPA 750, none details the necessities for archives that include curler (compact) racking. Many of the racks in the targeted building are of the ‘roller’ type, which restrict the quantity of house for constructing companies, including these for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to include test rig and format, take a look at type, hearth load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and safety procedures (for instance, the fire brigade). The associated efficiency primarily based fireplace exams were then designed to copy the vary of application parameters associated with archive storage.
While ignition sources on the unique website were recognized to be minimal, and the primary fire source confirmed as arson, the multi-level constructing poses numerous challenges that had to be thought of when formulating the hearth take a look at protocol to ensure effective safety. Low ceilings and quite a few obstructions, similar to lighting, ducts and pillars, contribute in the direction of the confined setting of the archive storage basement degree. Items are saved in a combination of open racks and compact racks, which supply lower than a 150mm gap between themselves and the ceiling, and there is restricted on-site water storage. Pre-test risk analysis also highlighted restricted access and exits below and above ground, so it’s essential for cupboard space to be maximised and protected egress provided in case of the event of a fireplace. In addition, the highly priceless nature of the storage contents meant that the chosen hearth suppression solution had to make sure minimal damage to these historic gadgets.
To obtain validation, the exams needed to meet various aims. These comprised rapid control of the fire inside a prescribed area (in this case, defined as within a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral harm through water clean-up. They additionally had to keep in mind various parameters, together with the desired excessive stress mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined according to a method primarily based on the amount of nozzles activating throughout testing.
The fireplace tests, carried out for each open and roller racks with minimum storage gaps, have been undertaken in a personalized take a look at rig, designed, constructed and fitted to copy the exact specification, racking arrangements and storage supplies of the location. Considered a excessive load, the gasoline supplies were equivalent to that present in archive storage, together with paper, books, micro-film and CD instances.
Success was defined by cross or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge pressure, discharge sequence, fire unfold, temperature, fireplace injury and water consumption. In both exams, Tyco’s AquaMist system operated successfully and was noticed to suppress and management the fireplace effectively. The project group was impressed by the shortage of fire and smoke harm to the materials and structure and the product has since been installed in the building in question.
“The IWMA convention is a fantastic opportunity to highlight the advantages of water mist as a fire suppression solution, as nicely as demonstrate its versatility in a variety of functions,” comments Dr Tim Nichols. “Identifying a niche available in the market and taking the opportunity to formulate a hearth test protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate protection of a customer’s extremely valuable property.”
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