Tyco Fire Protection Products showcased its experience in water mist suppression solutions 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 utilizing Water Mist’, where he mentioned how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in extremely useful buildings.
Tim’s lecture targeted on a hearth take a look at protocol that was formulated to confirm the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historic building, residence to valuable archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when using a water mist suppression system, hearth testing is undertaken pertinent to the danger. However, of the revealed fire take a look at protocols listed in NFPA 750, none details the necessities for archives that include roller (compact) racking. Many of the racks within the targeted constructing are of the ‘roller’ type, which limit the amount of area for building services, including these for extinguishing system pipework.
Together with the project stakeholders, Tyco devised the protocol to incorporate take a look at rig and structure, check kind, fire load, information 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 associated performance based hearth exams had been then designed to replicate the vary of utility parameters related to archive storage.
While pressure gauge หน้าปัด 2 นิ้ว on the unique website had been identified to be minimal, and the principle hearth supply confirmed as arson, the multi-level building poses quite a few challenges that had to be considered when formulating the hearth test protocol to ensure effective safety. Low ceilings and numerous obstructions, similar to lighting, ducts and pillars, contribute in the path of the confined setting of the archive storage basement level. Items are stored in a mixture of open racks and compact racks, which offer lower than a 150mm hole between themselves and the ceiling, and there could be restricted on-site water storage. Pre-test danger analysis also highlighted restricted entry and exits beneath and above floor, so it is essential for storage space to be maximised and safe egress offered in case of the event of a fireplace. In addition, the extremely useful nature of the storage contents meant that the chosen fireplace suppression solution had to make sure minimal harm to these historical items.
To obtain validation, the tests needed to meet numerous goals. These comprised rapid control of the hearth within a prescribed space (in this case, outlined as inside a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral harm through water clean-up. They also had to keep in mind varied parameters, including the desired high stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined based on a method primarily based on the quantity of nozzles activating throughout testing.
The fire exams, carried out for both open and roller racks with minimum storage gaps, had been undertaken in a personalized check rig, designed, built and fitted to copy the precise specification, racking preparations and storage materials of the site. Considered a excessive load, the fuel materials had been similar to that found in archive storage, including paper, books, micro-film and CD cases.
Success was outlined by cross or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, hearth unfold, temperature, fire damage and water consumption. In both exams, Tyco’s AquaMist system operated successfully and was observed to suppress and control the hearth efficiently. The project team was impressed by the shortage of fire and smoke harm to the materials and construction and the product has since been installed in the constructing in question.
“The IWMA conference is a unbelievable opportunity to focus on the benefits of water mist as a fire suppression answer, as properly as show its versatility in a variety of applications,” comments Dr Tim Nichols. “Identifying a gap in the market and taking the opportunity to formulate a fireplace check protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate protection of a customer’s highly priceless property.”
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