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 mentioned how the extinguishant is nicely suited to the safety of irreplaceable works and artefacts in highly useful buildings.
Tim’s lecture targeted on a fire take a look at protocol that was formulated to confirm the performance and use of Tyco’s own water mist resolution, AquaMist, in an historic building, residence to valuable archive storage. The National Fire Protection Association (NFPA) 750 commonplace requires that, when using a water mist suppression system, fire testing is undertaken pertinent to the risk. However, of the published fireplace check protocols listed in NFPA 750, none details the necessities for archives that include 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 those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to incorporate test rig and format, take a look at type, hearth load, information acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and security procedures (for occasion, the fireplace brigade). The associated performance based hearth checks were then designed to replicate the vary of utility parameters related to archive storage.
While ignition sources on the unique website had been recognized to be minimal, and the main fireplace source confirmed as arson, the multi-level building poses numerous challenges that needed to be considered when formulating the fireplace test protocol to guarantee efficient protection. Low ceilings and numerous obstructions, similar to lighting, ducts and pillars, contribute in the course of the confined surroundings of the archive storage basement degree. Items are saved in a mix of open racks and compact racks, which provide lower than a 150mm hole between themselves and the ceiling, and there is restricted on-site water storage. Pre-test danger analysis additionally highlighted restricted entry and exits beneath and above ground, so it’s important for space for storing to be maximised and secure egress supplied in case of the occasion of a hearth. In addition, the highly useful nature of the storage contents meant that the selected hearth suppression answer had to ensure minimal injury to those historic objects.
To achieve validation, the checks needed to meet varied goals. These comprised speedy management of the fireplace within a prescribed space (in this case, outlined as inside a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral damage by way of water clean-up. They also had to bear in mind numerous parameters, together with the specified high strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) outlined according to a formula based on the amount of nozzles activating during testing.
The hearth tests, carried out for both open and curler racks with minimum storage gaps, had been undertaken in a customised check rig, designed, built and fitted to duplicate the exact specification, racking arrangements and storage supplies of the site. Considered a high load, the fuel supplies were equivalent to that found in archive storage, including paper, books, micro-film and CD cases.
เพรสเชอร์เกจน้ำ was outlined by pass or fail standards and determined by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge stress, discharge sequence, hearth spread, temperature, fireplace injury and water consumption. In each exams, Tyco’s AquaMist system operated successfully and was noticed to suppress and management the hearth effectively. The project staff was impressed by the dearth of fireplace and smoke damage to the supplies and construction and the product has since been put in in the constructing in query.
“The IWMA conference is a fantastic alternative to spotlight the advantages of water mist as a hearth suppression resolution, as properly as demonstrate its versatility in a extensive range of functions,” comments Dr Tim Nichols. “Identifying a niche out there and taking the opportunity to formulate a fire test protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate safety of a customer’s highly priceless assets.”
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