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Enclosure Integrity Testing

Enclosure Integrity Testing

An Enclosure Integrity Test is a mandatory commissioning and maintenance function for any gaseous extinguishing system that complies with ISO 14520, NFPA 2001, EN 15004 & AS ISO 14520. Confirming whether the enclosure that is being protected will maintain the suppression agent for a minimum duration of 10 minutes is a critical part of the overall system performance. There is also a requirement to undertake yearly testing to comply with AS1851-2012 to ensure the integrity of the room has been compromised in any way.

A gaseous extinguishing system is typically designed to extinguish a fire after initial discharge and with a well-sealed enclosure will maintain an extinguishing concentration for a minimum duration to prevent re-flash of the fire. This allows time for fire services, site emergency response personnel, and safety officers to prepare and evaluate the fire situation and take control of the fire emergency after the fire extinguishing system has done its job.

The other critical reason that an Enclosure Integrity Test needs to be conducted on an enclosure where a fire extinguishing system is installed is to evaluate how tight the enclosure may be for the purpose of assessing pressure relief venting. All gaseous extinguishing systems create negative and/or positive pressures on discharge. The magnitude of these pressures will be dependent on how tight or how leaky the enclosure is. If an Enclosure Integrity Test has not been conducted then there is no way to assess whether the pressures on discharge will create a structural integrity problem for your enclosure. Under ISO 14520, NFPA 2001, EN15004 & AS ISO 14520, all enclosures must be evaluated to ensure that structural integrity is not compromised during discharge. A critical part of this evaluation is to perform an Enclosure Integrity Test.

FSI are experts in this field and we have certified technicians available for testing your enclosure based in Brisbane, Mackay, Moranbah, Rockhampton and Blackwater. We use Retrotec testing equipment which is sourced through Energy Conservation Australia who are the distributers for this product within Australia. If anyone wishes to perform this type of testing themselves then enquire about our certification training for technicians.