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 using Water Mist’, the place he discussed how the extinguishant is nicely suited to the protection of irreplaceable works and artefacts in highly useful buildings.
Tim’s lecture focused on a fireplace check protocol that was formulated to verify the performance and use of Tyco’s own water mist resolution, AquaMist, in an historic building, residence to precious archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when employing a water mist suppression system, fireplace testing is undertaken pertinent to the risk. However, of the revealed fire test protocols listed in NFPA 750, none details the requirements for archives that contain roller (compact) racking. Many of the racks in the focused building are of the ‘roller’ kind, which limit the quantity of house for constructing providers, including these for extinguishing system pipework.
Together with the project stakeholders, Tyco devised the protocol to incorporate test rig and structure, test kind, hearth load, information acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and safety procedures (for instance, the fire brigade). The related performance based mostly fire tests had been then designed to duplicate the range of utility parameters associated with archive storage.
While ignition sources on the authentic web site had been recognized to be minimal, and the primary fireplace supply confirmed as arson, the multi-level building poses quite a few challenges that had to be thought of when formulating the hearth check protocol to guarantee effective protection. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute towards the confined environment of the archive storage basement stage. Items are stored in a mix of open racks and compact racks, which offer lower than a 150mm gap between themselves and the ceiling, and there’s restricted on-site water storage. Pre-test danger analysis also highlighted restricted access and exits below and above ground, so it is essential for cupboard space to be maximised and protected egress offered in case of the occasion of a fireplace. In addition, the highly useful nature of the storage contents meant that the chosen fire suppression resolution had to ensure minimal damage to these historic objects.
To achieve validation, the checks had to meet numerous goals. These comprised fast control of the fire inside a prescribed area (in this case, defined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury through water clean-up. They additionally had to take into account varied parameters, including the specified excessive stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) defined based on a formula based on the quantity of nozzles activating throughout testing.
The hearth exams, carried out for both open and curler racks with minimal storage gaps, had been undertaken in a customised test rig, designed, built and fitted to duplicate the exact specification, racking arrangements and storage supplies of the positioning. Considered a excessive load, the gas materials have been equivalent to that present in archive storage, together with 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 analysis, discharge pressure, discharge sequence, fire spread, temperature, fireplace damage and water consumption. In both tests, Tyco’s AquaMist system operated effectively and was observed to suppress and control the fireplace efficiently. The challenge group was impressed by the lack of fireplace and smoke injury to the supplies and construction and the product has since been installed within the constructing in question.
“The IWMA conference is a unbelievable alternative to highlight the benefits of water mist as a fire suppression solution, as nicely as reveal its versatility in a variety of applications,” feedback Dr Tim Nichols. “Identifying a gap in the market and taking the chance to formulate a fire take a look at protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate safety of a customer’s extremely priceless assets.”
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