Tyco Fire Protection Products showcased its expertise 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 using Water Mist’, the place he discussed how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in highly valuable 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 resolution, AquaMist, in an historic building, home to precious archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when employing a water mist suppression system, fire testing is undertaken pertinent to the danger. However, of the printed fireplace test protocols listed in NFPA 750, none particulars the requirements for archives that contain curler (compact) racking. Many of the racks within the focused constructing are of the ‘roller’ type, which limit the quantity of house for constructing services, together with those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to include take a look at rig and layout, test type, fire load, data acquisition (for example, 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 primarily based fire exams have been then designed to replicate the vary of utility parameters associated with archive storage.
While ignition sources at the unique web site have been recognized to be minimal, and the main fire source confirmed as arson, the multi-level building poses quite a few challenges that had to be thought of when formulating the hearth test protocol to ensure effective protection. Low ceilings and numerous obstructions, corresponding to lighting, ducts and pillars, contribute in course of the confined environment of the archive storage basement level. 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 is restricted on-site water storage. Pre-test danger analysis additionally highlighted restricted access and exits beneath and above ground, so it is essential for cupboard space to be maximised and secure egress supplied in case of the occasion of a fire. In addition, the extremely valuable nature of the storage contents meant that the chosen fireplace suppression solution had to ensure minimal harm to those historical objects.
To obtain validation, the checks had to meet numerous goals. These comprised speedy control of the fireplace within a prescribed area (in this case, outlined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury by way of water clean-up. They also needed to take into account numerous parameters, together with the required excessive stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined according to a method based on the amount of nozzles activating during testing.
The fire exams, carried out for both open and curler racks with minimal storage gaps, had been undertaken in a personalized check rig, designed, constructed and fitted to duplicate the exact specification, racking preparations and storage materials of the location. Considered a excessive load, the fuel materials were identical to that found in archive storage, including paper, books, micro-film and CD circumstances.
Success was outlined by pass or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge strain, discharge sequence, fireplace unfold, temperature, hearth injury and water consumption. In เกจปรับแรงดันแก๊ส , Tyco’s AquaMist system operated successfully and was observed to suppress and management the hearth efficiently. The challenge group was impressed by the lack of fireside and smoke injury to the supplies and structure and the product has since been installed within the building in question.
“The IWMA convention is a fantastic alternative to highlight the advantages of water mist as a hearth suppression answer, in addition to show its versatility in a broad range of purposes,” comments Dr Tim Nichols. “Identifying a spot out there and taking the opportunity to formulate a hearth take a look at protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate protection of a customer’s highly valuable belongings.”
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