This type of ‘double interlock’ system only releases water when there is a smoke detection signal and an activated sprinkler head (via a drop in the air pressure in the pipework), that is the detection of both heat & smoke. This type of system has the sprinkler pipes in the critical area filled with compressed air or nitrogen. If the risk of water in the area is deemed too high, a dry pipe (or pre-action) system can be considered. Carefully designed concealed (or flush) type heads or guards can be considered to reduce the chance of accidental discharge due to mechanical damage to the sprinkler. However, a wet system introduces the risk of water damage to equipment either by accidental discharge or collateral damage in a fire. Sprinklers are one of the most reliable forms of fire protection. This will help determine the risk consequences and the level of fire protection investment required. When looking at protecting a data facility from a disruption of service, the first step is to decide how critical the facility is to the continuity of your business. These can be advised by the relevant Building Surveyor. It must be noted that the minimum level of fire protection for a facility must meet Building Code requirements. This Advisory Note provides a brief guide to a design approach for providing fire protection systems in data processing facilities.
Disruptions due to fire events, whether damage is caused by the fire or the fire suppression systems, can cause very significant business interruption with substantial commercial effects. Maintaining reliable and continuous operation is critical. Across all industries, Data Centre facilities large and small underpin the operation of business applications and processes.
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