Tyco Fire Protection Products showcased its experience in water mist suppression options on 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 discussed how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in extremely valuable buildings.
Tim’s lecture centered on a fireplace test protocol that was formulated to verify the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historical constructing, house to precious archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when employing a water mist suppression system, fireplace testing is undertaken pertinent to the risk. However, of the published hearth take a look at protocols listed in NFPA 750, none details the necessities for archives that contain curler (compact) racking. Many of the racks within the focused constructing are of the ‘roller’ sort, which restrict the quantity of area for building providers, together with these for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to include check rig and layout, check sort, fire load, knowledge acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and security procedures (for instance, the fire brigade). The associated performance primarily based fire tests have been then designed to copy the range of application parameters associated with archive storage.
While ignition sources on the unique site have been identified to be minimal, and the main fire source confirmed as arson, the multi-level building poses numerous challenges that needed to be considered when formulating the fire check protocol to guarantee efficient protection. Low ceilings and numerous obstructions, corresponding to lighting, ducts and pillars, contribute in the path of the confined surroundings of the archive storage basement stage. Items are stored in a mix of open racks and compact racks, which supply less than a 150mm hole between themselves and the ceiling, and there is limited on-site water storage. Pre-test threat evaluation additionally highlighted restricted access and exits beneath and above ground, so it’s essential for storage space to be maximised and protected egress supplied in case of the occasion of a hearth. In เกจวัดแรงดันpsi , the extremely valuable nature of the storage contents meant that the selected fire suppression answer had to make sure minimal harm to these historical items.
To achieve validation, the tests had to meet various objectives. These comprised rapid control of the hearth inside a prescribed space (in this case, outlined as inside a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral damage by way of water clean-up. They also needed to bear in mind varied parameters, together with the required excessive strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) outlined based on a formulation based mostly on the amount of nozzles activating throughout testing.
The hearth exams, carried out for each open and roller racks with minimal storage gaps, were undertaken in a customized take a look at rig, designed, built and fitted to copy the precise specification, racking preparations and storage materials of the location. Considered a excessive load, the gas materials have been identical to that found in archive storage, including paper, books, micro-film and CD circumstances.
Success was defined by pass or fail criteria and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, fireplace spread, temperature, hearth harm and water consumption. In both tests, Tyco’s AquaMist system operated successfully and was observed to suppress and management the hearth efficiently. The challenge group was impressed by the dearth of fireside and smoke injury to the materials and construction and the product has since been installed within the constructing in query.
“The IWMA conference is a incredible alternative to highlight the benefits of water mist as a hearth suppression answer, in addition to reveal its versatility in a broad range of applications,” comments Dr Tim Nichols. “Identifying a spot available within the market and taking the opportunity to formulate a hearth take a look at protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate protection of a customer’s highly useful belongings.”
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