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 utilizing Water Mist’, the place he mentioned how the extinguishant is properly suited to the protection of irreplaceable works and artefacts in extremely useful buildings.
Tim’s lecture focused on a fireplace check protocol that was formulated to confirm the performance and use of Tyco’s own water mist answer, AquaMist, in an historic building, residence to precious archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when using a water mist suppression system, hearth testing is undertaken pertinent to the danger. However, of the printed hearth test protocols listed in NFPA 750, none particulars the necessities for archives that contain roller (compact) racking. Many of the racks within the focused constructing are of the ‘roller’ sort, which restrict the quantity of house for constructing companies, together with those for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to incorporate test rig and structure, take a look at sort, hearth load, data acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and safety procedures (for instance, the fire brigade). The related performance based mostly fire exams have been then designed to copy the range of utility parameters related to archive storage.
While เพรสเชอร์เกจ4นิ้ว on the unique website were recognized to be minimal, and the primary fireplace source confirmed as arson, the multi-level constructing poses quite a few challenges that needed to be thought of when formulating the fireplace check protocol to guarantee effective protection. Low ceilings and numerous obstructions, corresponding to lighting, ducts and pillars, contribute in the path of the confined environment of the archive storage basement level. Items are stored in a mix of open racks and compact racks, which offer lower than a 150mm hole between themselves and the ceiling, and there’s restricted on-site water storage. Pre-test threat analysis additionally highlighted restricted entry and exits beneath and above floor, so it is essential for space for storing to be maximised and safe egress supplied in case of the occasion of a hearth. In addition, the extremely valuable nature of the storage contents meant that the selected fire suppression solution had to ensure minimal injury to these historical objects.
To achieve validation, the tests needed to meet various goals. 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 injury via water clean-up. They additionally needed to bear in mind various parameters, including the desired high strain mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined based on a formula based mostly on the quantity of nozzles activating throughout testing.
The fire exams, carried out for each open and curler racks with minimal storage gaps, have been undertaken in a personalized test rig, designed, constructed and fitted to duplicate the precise specification, racking arrangements and storage supplies of the location. Considered a high load, the fuel materials had been similar to that present in archive storage, together with paper, books, micro-film and CD cases.
Success was outlined by pass or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, fire spread, temperature, fire damage and water consumption. In each exams, Tyco’s AquaMist system operated effectively and was observed to suppress and control the fireplace effectively. The challenge staff was impressed by the lack of fireside and smoke harm to the materials and structure and the product has since been put in within the building in query.
“The IWMA conference is a incredible alternative to spotlight the advantages of water mist as a fire suppression solution, in addition to show its versatility in a variety of functions,” comments Dr Tim Nichols. “Identifying a niche in the market and taking the chance to formulate a hearth take a look at protocol for archive storage enabled us to validate the skilled capabilities of our AquaMist system and facilitate protection of a customer’s extremely valuable property.”
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