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’, the place he mentioned how the extinguishant is well suited to the safety of irreplaceable works and artefacts in highly useful buildings.
Tim’s lecture focused on a fire check protocol that was formulated to confirm the performance and use of Tyco’s own water mist solution, AquaMist, in an historic constructing, home to valuable 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 chance. However, of the revealed fireplace check protocols listed in NFPA 750, none details the necessities for archives that comprise roller (compact) racking. Many of the racks in the targeted constructing are of the ‘roller’ type, which limit the amount of house for constructing services, including these for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to include test rig and format, test type, hearth load, knowledge 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 associated efficiency based mostly fireplace exams had been then designed to replicate the vary of utility parameters related to archive storage.
While ignition sources at the unique site had been identified to be minimal, and the primary hearth source confirmed as arson, the multi-level constructing poses quite a few challenges that had to be thought-about when formulating the hearth take a look at protocol to ensure effective safety. Low ceilings and numerous obstructions, corresponding to lighting, ducts and pillars, contribute in the direction of the confined surroundings of the archive storage basement stage. Items are stored in a combination of open racks and compact racks, which offer less than a 150mm hole between themselves and the ceiling, and there’s limited on-site water storage. Pre-test risk evaluation additionally highlighted restricted access and exits below and above floor, so it’s important for cupboard space to be maximised and protected egress offered in case of the event of a hearth. In addition, the highly useful nature of the storage contents meant that the chosen fireplace suppression answer had to make sure minimal harm to these historical objects.
To obtain validation, the exams had to meet varied aims. เกจวัดแรงดัน300psi comprised speedy control of the hearth within a prescribed area (in this case, outlined as inside a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral damage via water clean-up. They also needed to take into account numerous parameters, together with the specified excessive strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) outlined in accordance with a method based mostly on the quantity of nozzles activating throughout testing.
The fire exams, carried out for both open and roller racks with minimum storage gaps, have been undertaken in a personalized test rig, designed, built and fitted to duplicate the precise specification, racking arrangements and storage materials of the positioning. Considered a excessive load, the fuel supplies had been similar to that found in archive storage, including paper, books, micro-film and CD instances.
Success was defined by move or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge pressure, discharge sequence, hearth spread, temperature, fireplace damage and water consumption. In each checks, Tyco’s AquaMist system operated successfully and was noticed to suppress and control the hearth effectively. The venture team was impressed by the lack of fireside and smoke injury to the materials and structure and the product has since been installed within the building in query.
“The IWMA conference is a fantastic alternative to focus on the advantages of water mist as a hearth suppression resolution, in addition to reveal its versatility in a broad range of applications,” comments Dr Tim Nichols. “Identifying a spot in the market and taking the opportunity to formulate a fireplace test protocol for archive storage enabled us to validate the skilled capabilities of our AquaMist system and facilitate protection of a customer’s extremely valuable assets.”
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