Tyco Fire Protection Products showcased its expertise 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 using Water Mist’, the place he mentioned how the extinguishant is properly suited to the protection of irreplaceable works and artefacts in extremely valuable buildings.
Tim’s lecture centered on a fire check protocol that was formulated to verify the performance and use of Tyco’s personal water mist answer, AquaMist, in an historic constructing, house to valuable archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when using a water mist suppression system, fire testing is undertaken pertinent to the danger. 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 building are of the ‘roller’ kind, which limit the quantity of space for constructing services, together with those for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to incorporate test rig and layout, test sort, fireplace load, information acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and safety procedures (for occasion, the fire brigade). The associated efficiency based hearth tests were then designed to replicate the range of application parameters related to archive storage.
While ignition sources on the original web site had been recognized to be minimal, and the main hearth supply confirmed as arson, the multi-level constructing poses quite a few challenges that had to be thought-about when formulating the fireplace check protocol to guarantee effective safety. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute in the course of the confined setting of the archive storage basement level. Items are stored in a mixture of open racks and compact racks, which provide lower than a 150mm gap between themselves and the ceiling, and there may be limited on-site water storage. Pre- เครื่องมือวัดความดันคือ restricted entry and exits under and above floor, so it’s important for storage space to be maximised and secure egress supplied in case of the event of a fireplace. In addition, the highly priceless nature of the storage contents meant that the selected hearth suppression solution had to ensure minimal injury to these historic objects.
To obtain validation, the checks needed to meet varied goals. These comprised speedy control of the fireplace inside a prescribed area (in this case, outlined as inside a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury via water clean-up. They additionally needed to take into account numerous parameters, including the required excessive strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined in accordance with a formula primarily based on the amount of nozzles activating during testing.
The fireplace tests, carried out for both open and curler racks with minimal storage gaps, had been undertaken in a personalized test rig, designed, constructed and fitted to duplicate the exact specification, racking arrangements and storage materials of the positioning. Considered a excessive load, the fuel supplies were equivalent to that found in archive storage, including paper, books, micro-film and CD circumstances.
Success was defined by cross or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, fire spread, temperature, hearth harm and water consumption. In both exams, Tyco’s AquaMist system operated effectively and was noticed to suppress and management the fire effectively. The challenge team was impressed by the dearth of fireplace and smoke damage to the materials and construction and the product has since been put in within the constructing in question.
“The IWMA convention is a incredible opportunity to spotlight the advantages of water mist as a fireplace suppression resolution, as well as demonstrate its versatility in a variety of functions,” feedback Dr Tim Nichols. “Identifying a spot in the market and taking the chance to formulate a hearth test protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate protection of a customer’s highly priceless belongings.”
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