Tyco Fire Protection Products showcased its experience 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 utilizing Water Mist’, where he mentioned how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in extremely priceless buildings.
Tim’s lecture centered on a hearth test protocol that was formulated to confirm the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historic constructing, residence to precious archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when employing a water mist suppression system, hearth testing is undertaken pertinent to the chance. However, of the published fireplace test protocols listed in NFPA 750, none particulars the necessities for archives that contain roller (compact) racking. Many of the racks in the targeted constructing are of the ‘roller’ type, which limit the amount of area for building companies, including these for extinguishing system pipework.
Together with the project stakeholders, Tyco devised the protocol to include take a look at rig and layout, check type, fire load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and security procedures (for occasion, the hearth brigade). The related efficiency based mostly hearth checks have been then designed to replicate the range of software parameters associated with archive storage.
While ignition sources at the authentic website have been identified to be minimal, and the principle fire source confirmed as arson, the multi-level building poses quite a few challenges that needed to be thought-about when formulating the hearth take a look at protocol to ensure efficient protection. Low ceilings and quite a few obstructions, similar to lighting, ducts and pillars, contribute towards the confined surroundings of the archive storage basement level. Items are stored in a combination of open racks and compact racks, which offer lower than a 150mm gap between themselves and the ceiling, and there may be limited on-site water storage. Pre-test risk analysis additionally highlighted restricted access and exits below and above ground, so it’s important for storage space to be maximised and protected egress provided in case of the occasion of a hearth. In เครื่องมือตรวจวัดความดันเลือดเรียกว่า , the extremely priceless nature of the storage contents meant that the selected fireplace suppression resolution had to ensure minimal damage to those historic gadgets.
To obtain validation, the checks had to meet various objectives. These comprised rapid management of the fireplace within a prescribed area (in this case, outlined as within a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral harm through water clean-up. เกจวัดแก๊สlpg needed to bear in mind varied parameters, including the specified high strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) outlined based on a formula based mostly on the quantity of nozzles activating throughout testing.
The fireplace checks, carried out for both open and curler racks with minimum storage gaps, were undertaken in a customised take a look at rig, designed, built and fitted to copy the exact specification, racking arrangements and storage materials of the positioning. Considered a excessive load, the fuel supplies had been equivalent to that found in archive storage, together with paper, books, micro-film and CD circumstances.
Success was defined by cross or fail standards and determined by detailed quantitative measurements on system configuration, hydraulic analysis, discharge pressure, discharge sequence, fire spread, temperature, fireplace harm and water consumption. In both checks, Tyco’s AquaMist system operated effectively and was observed to suppress and control the fire efficiently. The project group was impressed by the lack of fireplace and smoke injury to the supplies and structure and the product has since been installed in the building in query.
“The IWMA convention is a incredible alternative to focus on the benefits of water mist as a fire suppression resolution, as well as reveal its versatility in a variety of purposes,” comments Dr Tim Nichols. “Identifying a niche in the market and taking the opportunity to formulate a hearth test protocol for archive storage enabled us to validate the skilled capabilities of our AquaMist system and facilitate safety of a customer’s highly valuable assets.”
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