EN 15004-1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.1DþUWRYDQMHOrtsfeste Brandbekämpfungsanlagen - Löschanlagen mit gasförmigen Löschmitteln - Teil 1: Planung, Installation und Instandhaltung (ISO 14520-1:2006, modifiziert)Installations fixes de lutte contre l'incendie - Installations d'extinction à gaz - Partie 1 : Calcul, installation et maintenance (ISO 14520-1:2006, modifiée)Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and maintenance (ISO 14520-1:2006, modified)13.220.20Fire protectionICS:Ta slovenski standard je istoveten z:EN 15004-1:2008SIST EN 15004-1:2008en,fr,de01-november-2008SIST EN 15004-1:2008SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15004-1June 2008ICS 13.220.20 English VersionFixed firefighting systems - Gas extinguishing systems - Part 1:Design, installation and maintenance (ISO 14520-1:2006,modified)Installations fixes de lutte contre l'incendie - Installationsd'extinction à gaz - Partie 1 : Calcul, installation etmaintenance (ISO 14520-1:2006, modifiée)Ortsfeste Brandbekämpfungsanlagen - Löschanlagen mitgasförmigen Löschmitteln - Teil 1: Planung, Installation undInstandhaltung (ISO 14520-1:2006, modifiziert)This European Standard was approved by CEN on 26 April 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15004-1:2008: ESIST EN 15004-1:2008

Working documents.43 A.1 General.43 A.2 Working documents.43 A.3 Specific details.44 A.3.1 Pre-engineered systems.44 A.3.2 Engineered systems.44 Annex B (normative)
Determination of flame-extinguishing concentration of gaseous extinguishants by the cup burner method.45 B.1 General.45 B.2 Principle.45 B.3 Requirements for apparatus.45 B.3.1 General.45 B.3.2 Cup.46 B.3.3 Chimney.46 B.3.4 Diffuser.47 B.3.5 Fuel supply.47 B.3.6 Manifold.47 B.3.7 Air supply.47 B.3.8 Extinguishant supply.47 B.3.9 Delivery system.47 B.4 Requirements for materials.47 B.4.1 Air.47 B.4.2 Fuel.47 B.4.3 Extinguishant.47 B.5 Procedure for flammable liquids.48 B.6 Procedure for flammable gases.48 B.7 Extinguishant extinguishing concentration.49 B.7.1 Preferred method.49 B.7.2 Alternative method.49 B.8 Reporting of results.50 Annex C (normative)
Fire extinguishment/area coverage fire test procedure for engineered and pre-engineered extinguishing units.51 C.1 Requirements.51 C.2 Type of test.51 C.3 Extinguishing system.52 C.4 Extinguishing concentration.53 C.5 Nozzle distribution verification tests.53 C.5.1 Nozzles minimum height/maximum area coverage test.53 C.5.2 Nozzles maximum height test.58 C.6 Extinguishing concentration tests.59 C.6.1 Wood crib test.59 C.6.2 Heptane pan test.64 C.6.3 Polymeric sheet fire test.65 Annex D (normative)
Method of evaluating inerting concentration of a fire extinguishant.71 D.1 General.71 D.2 Principle.71 D.3 Apparatus.71 D.4 Procedure.71 D.5 Inerting concentration.72 Annex E (normative)
Door fan test for determination of minimum hold time.73 E.1 General.73 E.2 Test for determination of predicted hold time.73 SIST EN 15004-1:2008

System performance verification.90 Annex G (informative)
Safe personnel exposure guidelines.91 G.1 General.91 G.2 Safety.91 G.3 Hazards to Personnel.91 G.3.1 Agent itself.91 G.3.2 Noise.91 G.3.3 Turbulence.91 G.3.4 Low temperature.91 G.4 Halocarbon agents.92 G.4.1 Toxicity of halocarbons (liquefied gases).92 G.4.2 PBPK Model.93 G.4.3 Safe exposure guidelines for halocarbons.94 G.5 Inert Gas (non-liquefied gas).96 G.5.1 Physiological effects of inert gas agents.96 G.5.2 Safe exposure guidelines for inert gas agents.96 Annex H (informative)
Flow calculation implementation method and flow calculation verification and testing for approvals.98 H.1 General.98 H.2 Calculation method implementation.98 H.3 Minimum accuracy recommendations.99 H.3.1 Physical quantities.99 H.3.2 Recommended design limits to be included inside the flow calculation method (software).99 H.4 Recommended testing procedure for system flow calculation method (software) validation.99 H.4.1 General.99 H.4.2 System design for testing.100 H.5 Pass/fail criteria.101 Bibliography.102
ISO 14520-1:2006 has the following foreword: ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14520-1 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 8, Gaseous media and firefighting systems using gas. This second edition cancels and replaces the first edition (ISO 14620-1:2000), which has been technically revised. Annex C has been extensively revised to include polymeric sheet fuel array fire tests [polymethyl methacrylate (PMMA)], [polypropylene (PP)] and [acrylonitrile-butadiene-styrene (ABS)]. These tests are designed to more closely represent plastic fuel hazards such as may be encountered in information technology, telecommunications and process control facilities. Annex E has been re-structured to accommodate lighter-than-air gases and to provide means for dealing with non-standard (as opposed to geometrically regular) hazard enclosures. Also incorporated in this revision of ISO 14520-1 are safe personnel exposure guidelines, Annex G, recognizing physiologically based pharmacokinetic (PBPK) modelling and hypoxic guidelines to define safe human exposure limits. ISO 14520 consists of the following parts, under the general title Gaseous media fire extinguishing systems — Physical properties and system design:  Part 1: General requirements  Part 2: CF3I extinguishant  Part 5: FK-5-1-12 extinguishant
 Part 6: HCFC Blend A extinguishant
 Part 8: HFC 125 extinguishant  Part 9: HFC 227ea extinguishant
 Part 10: HFC 23 extinguishant SIST EN 15004-1:2008

Introduction Fire fighting systems covered in this document are designed to provide a supply of gaseous extinguishing medium for the extinction of fire.
Several different methods of supplying extinguishant to, and applying it at, the required point of discharge for fire extinction have been developed in recent years, and there is a need for dissemination of information on established systems and methods. This document has been prepared to meet this need.
In particular, new requirements to eliminate the need to release extinguishants during testing and commissioning procedures are included. These are linked to the inclusion of enclosure integrity testing.
The requirements of this document are made in the light of the best technical data known to the working group at the time of writing but, since a wide field is covered, it has been impracticable to consider every possible factor or circumstance that might affect implementation of the recommendations.
It has been assumed in the preparation of this document that the execution of its provisions is entrusted to people appropriately qualified and experienced in the specification, design, installation, testing, approval, inspection, operation and maintenance of systems and equipment, for whose guidance it has been prepared, and who can be expected to exercise a duty of care to avoid unnecessary release of extinguishant.
Attention is drawn to the Montreal Protocol on substances that deplete the ozone layer.
It is important that the fire protection of a building or plant be considered as a whole. Gaseous extinguishant systems form only a part, though an important part, of the available facilities, but it should not be assumed that their adoption necessarily removes the need to consider supplementary measures, such as the provision of portable fire extinguishers or other mobile appliances for first aid or emergency use, or to deal with special hazards.
Gaseous extinguishants have for many years been a recognized effective medium for the extinction of inflammable liquid fires and fires in the presence of electrical and ordinary Class A hazards, but it should not be forgotten, in the planning of comprehensive schemes, that there may be hazards for which these media are not suitable, or that in certain circumstances or situations there may be dangers in their use requiring special precautions.
Advice on these matters can be obtained from the appropriate manufacturer of the extinguishant or the extinguishing system. Information may also be sought from the appropriate fire authority, the health and safety authorities and insurers. In addition, reference should be made as necessary to other national standards and statutory regulations of the particular country.
It is essential that fire fighting equipment be carefully maintained to ensure instant readiness when required. Routine maintenance is liable to be overlooked or given insufficient attention by the owner of the system. It is, however, neglected at peril to the lives of occupants of the premises and at the risk of crippling financial loss. The importance of maintenance cannot be too highly emphasized. Installation and maintenance should only be done by qualified personnel.
Inspection preferably by a third party should include an evaluation that the extinguishing system continues to provide adequate protection for the risk (protected zones as well as state of the art can change over time).
The test protocol contained in Annex C of this document was developed by a special working group of ISO/TC 21/SC 8. Annex C deals with the tests for determination of the extinguishing concentrations and system performance and they are designed in such a way to allow individual installers to use his/her system SIST EN 15004-1:2008

As a consequence of the above, the current Annex C of this document has been revised as described in the Foreword.
Dichlorotrifluoroethane Chlorodifluoromethane Chlorotetrafluoroethane Isopropenyl-1-methylcyclohexene
CHCl2CF3 CHClF2 CHClFCF3 C10H16
306-83-2 75-45-6 2837-89-0 5989-27-5 15004-3 HFC 125 Pentafluoroethane CHF2CF3 354-33-6 15004-4 HFC 227ea Heptafluoropropane CF3CHFCF3 2252-84-8 15004-5 HFC 23 Trifluoromethane CHF3 75-46-7 15004-6 IG-01 Argon Ar 74040-37-1 15004-7 IG-100 Nitrogen N2 7727-37-9 15004-8 IG-55 Nitrogen (50 %) Argon (50 %) N2 Ar 7727-37-9 74040-37-1 15004-9 IG-541 Nitrogen (52 %) Argon (40 %) Carbon dioxide (8 %) N2 Ar CO2 7727-37-9 74040-37-1 124-38-9 15004-10 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2, Classification of fires EN 54 (all parts), Fire detection and fire alarm systems SIST EN 15004-1:2008
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