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FM Approvals 5320
- Dry Chemical Extinguishing Systems
- standard by FM Approvals, 2013
- Publisher: FM Approvals
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This standard describes requirements for fixed fire extinguishing systems which use dry chemical as the primary means of extinguishant.
Pre-engineered dry chemical fire extinguishing systems are classified into one of two general categories according to protection type: total flooding or local application. Total flooding systems are designed to uniformly discharge dry chemical throughout the entire protected volume, and are intended to be used for the protection of Class A hazards, Class B hazards, or both. Local application systems are designed to discharge dry chemical directly onto a specific area of protection, and are intended to be used for the protection of Class B hazards only. Either type shall be designed for automatic and manual control to protect single or multiple hazard areas.
Pre-engineered dry chemical fire extinguishing systems are classified into one of two general categories according to protection type: total flooding or local application. Total flooding systems are designed to uniformly discharge dry chemical throughout the entire protected volume, and are intended to be used for the protection of Class A hazards, Class B hazards, or both. Local application systems are designed to discharge dry chemical directly onto a specific area of protection, and are intended to be used for the protection of Class B hazards only. Either type shall be designed for automatic and manual control to protect single or multiple hazard areas.
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