Norm

NEN-EN 13565-2:2004 Ontw. en

Vaste brandblusinstallaties - Schuimsystemen - Deel 2: Ontwerp, constructie en onderhoud

  • Deze norm is ingetrokken sinds 25-05-2009

35,70

Over deze norm

Status Ingetrokken
Aantal pagina's 45
Commissie Blusinstallaties
Gepubliceerd op 01-10-2004
Taal Engels
This European Standard covers the design, installation, commissioning and the use of fireextinguishing systems with low, medium or high expansion foam. Foam systems are designed to provide a homogeneous layer of bubbles, of aerated fire fighting foam concentrate and water, over the surface of flammable liquids (Class B) and/or combustible materials (Class A). The layer of bubbles will suppress the release of flammable vapours, exclude air, and cool the fuel and hot surfaces. In addition, High Expansion Foam may be used to provide total flooding of enclosures with 3 dimensional hazards of either Class A and/or Class B fuels. Prior to the selection and design of foam systems the hazards should undergo a risk assessment, however this is outside the scope of this standard. Applications for foam systems can be diverse so no one type of foam system can be prescribed. This Standard provided guidance for the design of various foam systems available to persons with knowledge and experience in determining the selection of foam fire extinguishing systems which will be effective in protecting specific hazard configurations. The requirement for foam systems derives from risk assessment by those competent to carry out such assessments -which is outside the scope of this European standard. Nothing in this standard is intended to restrict new technologies or alternative arrangements, provided the level of safety prescribed by this standard is not lowered. The engineering of foam systems is deemed to utilise proportioners and discharge devices evaluated and tested in accordance with prEN 13565-1 using foam concentrates complying with EN1568. Low and Medium Expansion Foam Systems are not suitable for fire extinguishment of the following: - 3 dimensional fire hazards such as cascading fuel or spray fires, however, they will/may be of value in the control of resultant spill fires. All foam systems are generally unsuitable for the following: - Chemicals, such as cellulose nitrate, that release sufficient oxygen or other oxidising agents which can sustain combustion. - Energised unenclosed electrical equipment. - Metals such as sodium, potassium, and sodium-potassium alloys which are reactive to water. - Hazardous, water-reactive materials such as triethyl-aluminium and phosphorous pentoxide. - Combustible metals such as aluminium and magnesium.

Details

ICS-code 13.220.20
Nederlandse titel Vaste brandblusinstallaties - Schuimsystemen - Deel 2: Ontwerp, constructie en onderhoud
Engelse titel Fixed firefighting systems - Foam systems - Part 2: Design, construction and maintenance
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Normatieve verwijzingen
  • 89/106/EEG, Bouwproducten

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