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’, the place he mentioned how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in highly useful buildings.
Tim’s lecture targeted on a fireplace test protocol that was formulated to confirm the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historic building, home to precious archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when using a water mist suppression system, fireplace testing is undertaken pertinent to the chance. However, of the printed fireplace check protocols listed in NFPA 750, none particulars the requirements for archives that contain curler (compact) racking. Many of the racks in the focused building are of the ‘roller’ kind, which limit the amount of area for building providers, together with those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to include test rig and structure, check type, fireplace load, data acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and security procedures (for occasion, the fire brigade). The related efficiency based hearth exams have been then designed to replicate the range of application parameters associated with archive storage.
While ignition sources at the unique site had been recognized to be minimal, and the principle fireplace source confirmed as arson, the multi-level constructing poses numerous challenges that needed to be thought-about when formulating the fire test protocol to guarantee efficient protection. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute in 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’s restricted on-site water storage. Pre-test threat evaluation also highlighted restricted entry and exits beneath and above ground, so it’s important for storage space to be maximised and safe egress provided in case of the event of a fire. In addition, the extremely priceless nature of the storage contents meant that the chosen hearth suppression resolution had to ensure minimal damage to those historic gadgets.
To achieve validation, the tests had to meet various goals. These comprised rapid control of the fireplace inside a prescribed space (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 also needed to take into account varied parameters, together with the required high strain mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined according to a formulation primarily based on the quantity of nozzles activating throughout testing.
The fire tests, carried out for each open and roller racks with minimal storage gaps, were undertaken in a customised check rig, designed, built and fitted to copy the precise specification, racking arrangements and storage materials of the location. Considered a excessive load, the fuel materials were equivalent to that found in archive storage, including paper, books, micro-film and CD circumstances.
Success was outlined by move or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge strain, discharge sequence, hearth spread, temperature, hearth damage and water consumption. In both exams, Tyco’s AquaMist system operated effectively and was noticed to suppress and control the fire efficiently. The project group was impressed by the lack of fireside and smoke harm to the materials and construction and the product has since been put in within the building in query.
“The IWMA convention is a unbelievable alternative to highlight the benefits of water mist as a hearth suppression answer, as nicely as demonstrate its versatility in a broad range of purposes,” comments Dr Tim Nichols. เกจวัดแรงดันออกซิเจน Identifying a gap out there and taking the chance to formulate a hearth check protocol for archive storage enabled us to validate the skilled capabilities of our AquaMist system and facilitate safety of a customer’s highly priceless assets.”
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