Tuesday, June 2, 2020

Fixed foam extinguishing requirement

    1.    Fill the greatest space to be protected at a rate of 1 mtr  in depth per minute.
    2.    Quanity of foam should be sufficient to produce volume of foam equal to five times the volume of the largest space to be protected.
    3.    The expansion ratio shall not exceed 1000:1.
Low expansion foam for deck:-
    1.    The expansion ratio should not be 12:1.
The system shall be capable to discharging through fixed discharge outlets in not more than 5 minutes. A quantity of foam sufficient to cover to a depth of 150mm the largest single area over which the oil fuel is liable to spread.

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