CEN/TC 191/WG 4 - Powder extinguishing systems

This document specifies requirements and test methods for materials, construction and performance of components intended for use in powder firefighting systems complying with EN 12416-2:2001+A1:2007.
The components covered are as follows:
-   powder containers;
-   expellant gas container assemblies;
-   pressure regulators and gauges;
-   actuators;
-   main isolating valves and selector valves;
-   nozzles.
The components are suitable for powder firefighting systems for general use in buildings and other construction works. In areas with a risk of explosion, earthquake zones, extreme environmental conditions, e.g. marine, offshore, mining or aircraft additional considerations apply.
This document covers components for use in powder extinguishing systems complying with EN 12416-2:2001+A1:2007. It does not cover, for example, pipes and fittings which are covered by more general standards for which requirements and recommendations are given in EN 12416-2:2001+A1:2007. Nor does it cover fire detectors or electrical control and indicating equipment.

This European Standard specifies requirements and gives recommendations for the design, construction and maintenance of kits covering components of powder fire extinguishing systems which discharge powder from a container, or centrally grouped containers, through nozzles by means of expellant gas in accordance with EN 12416-1:2001 and the relevant part of EN 54 where required.
This European standard covers systems which are suitable for general use in buildings and other construction works as well as outdoor hazards.
This standard does not cover stored pressure systems or pre-engineered systems up to 150 kg of the extinguishing media quantity, powder hose lines and monitor systems, nor areas with a risk of explosion, earthquake zones or extreme environmental conditions e.g. marine, offshore, mining or aircraft.
This European standard does not apply to systems where there is a risk of class "D" fires according to EN 2.

This European standard specifies requirements for materials, construction and performance of components intended for use in powder firefighting systems complying with EN 12416-2, which covers gas container systems with a maximum working pressure not exceeding 25 bar at 20°C. It does not cover stored pressure systems, pre-engineerd systems, powder hose lines and monitor systems. Methods of test are also given.

This European Standard specifies requirements and gives recommendations for the design, construction and maintenance of kits covering components of powder fire extinguishing systems which discharge powder from a container, or centrally grouped containers, through nozzles by means of expellant gas in accordance with EN 12416-1:2001 and the relevant part of EN 54 where required.
This European standard covers systems which are suitable for general use in buildings and other construction works as well as outdoor hazards.
This standard does not cover stored pressure systems or pre-engineered systems up to 150 kg of the extinguishing media quantity, powder hose lines and monitor systems, nor areas with a risk of explosion, earthquake zones or extreme environmental conditions e.g. marine, offshore, mining or aircraft.
This European standard does not apply to systems where there is a risk of class "D" fires according to EN 2.

This European standard specifies requirements for materials, construction and performance of components intended for use in powder firefighting systems complying with EN 12416-2, which covers gas container systems with a maximum working pressure not exceeding 25 bar at 20°C. It does not cover stored pressure systems, pre-engineerd systems, powder hose lines and monitor systems. Methods of test are also given.