• Such system shall be installed in accordance with standards acceptable to the Director of Fire Services.
• Drencher systems shall be installed on all refuge floors to cover all external wall openings.
• The water flow rate should be maintained not less than 10 litres per minute per square metreof the external wall openings.
• A deluge value set shall be installed close to the inlet for the drencher system. Manual operating device(s) with operation instruction displayed nearby shall be provided on refuge floor at location(s) acceptable to the Director of Fire Services.
• Independent water tank shall be provided for the drencher system of each building blockwith the capacity to operate for at least 30 minutes. If there are two refuge floors in abuilding block, the capacity of the water tank shall be calculated in accordance with the refuge floor with the larger external wall opening area. For a building block with 3 or more refuge floors, the water tank capacity will be considered on a case by case basis.

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