EN 15004-1:2019
(Main)Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and maintenance (ISO 14520-1:2015, modified)
Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and maintenance (ISO 14520-1:2015, modified)
This document specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of gas extinguishing systems in buildings, plants or other structures, and the characteristics of the various extinguishants and types of fire for which they are a suitable extinguishing medium.
This document describes total flooding systems primarily related to buildings, plants and other specific applications, utilizing electrically non-conducting gaseous fire extinguishants that do not leave a residue after discharge and for which there are sufficient data currently available to enable validation of performance and safety characteristics by an appropriate independent authority. This document is not applicable to explosion suppression.
This part of EN 15004 is not intended to indicate approval of the extinguishants listed therein by the appropriate authorities, as other extinguishants may be equally acceptable. CO2 is not included as it is covered by other International Standards.
This part of EN 15004 is applicable to the extinguishants listed in Table 1. This document is intended to be used in conjunction with the given parts of EN 15004 for fire extinguishing agents in Table 1.
Ortsfeste Brandbekämpfungsanlagen - Löschanlagen mit gasförmigen Löschmitteln - Teil 1: Planung, Installation und Instandhaltung (ISO 14520-1:2015, modifiziert)
Dieses Dokument legt Anforderungen fest und gibt Empfehlungen für die Auslegung, Installation, Prüfung, Instandhaltung und Sicherheit von Löschanlagen mit gasförmigen Löschmitteln in Gebäuden, Produktions-anlagen oder anderen Bauwerken sowie die Kenndaten der unterschiedlichen Löschmittel und deren Eignung für bestimmte Brände.
Dieses Dokument beschreibt Raumschutzanlagen für Gebäude, Anlagen und weitere besondere Anwendungen, bei denen elektrisch nicht leitende, gasförmige Löschmittel eingesetzt werden, die nach dem Einsatz keinen Rückstand hinterlassen und über die gegenwärtig ausreichend viele Angaben verfügbar sind, so dass eine Validierung ihres Verhaltens und ihrer Sicherheitskenndaten durch eine geeignete, unabhängige zuständige Stelle möglich ist. Dieses Dokument gilt nicht für die Explosionsunterdrückung.
Dieser Teil der EN 15004 stellt keine Auflistung der von zuständigen Stellen zugelassenen Löschmittel dar; weitere, hier nicht aufgeführte Löschmittel können ebenfalls zulässig sein. CO2 wurde nicht erfasst, da es in anderen Internationalen Normen behandelt wird.
Dieser Teil der EN 15004 gilt für die in Tabelle 1 aufgeführten Löschmittel. Es ist vorgesehenen, dieses Dokument in Verbindung mit den in Tabelle 1 angegeben Teilen von EN 15004 für die einzelnen Löschmittel anzuwenden.
Installations fixes de lutte contre l’incendie - Installations d’extinction à gaz - Partie 1 : Calcul, installation et maintenance (ISO 14520-1:2015, modifiée)
Le présent document spécifie des exigences et donne des recommandations pour la conception, l’installation, les essais, la maintenance et la sécurité des systèmes d’extinction à gaz dans les bâtiments, les usines et autres structures. Il aborde également les caractéristiques des différents agents extincteurs et les types d’incendies pour lesquels ces agents sont des agents extincteurs appropriés.
Le présent document décrit des systèmes par noyage total principalement destinés aux bâtiments, aux usines et autres applications spécifiques, qui utilisent des agents extincteurs gazeux non conducteurs de l’électricité et qui ne laissent aucun résidu après émission et pour lesquels il existe actuellement suffisamment de données pour permettre à une autorité indépendante appropriée de valider les caractéristiques de performance et de sécurité. Le présent document ne s’applique pas à la suppression des explosions.
La présente partie de l’EN 15004 n’est pas destinée à indiquer l’homologation par les autorités compétentes des agents extincteurs énumérés dans le présent document, dans la mesure où d’autres agents extincteurs peuvent être tout aussi acceptables. Le CO2 n’est pas inclus dans la mesure où il est traité dans d’autres Normes internationales.
La présente partie de l’EN 15004 est applicable aux agents extincteurs répertoriés dans le Tableau 1. Il est prévu que le présent document soit utilisé conjointement avec les parties fournies de l’EN 15004 relatives aux agents extincteurs du Tableau 1.
Vgrajeni gasilni sistemi - Sistemi za gašenje s plinom - 1. del: Načrtovanje, vgradnja in vzdrževanje (ISO 14520-1:2015, spremenjen)
Ta del standarda EN 15004 določa zahteve in podaja priporočila za načrtovanje, vgradnjo, preskušanje, vzdrževanje in varnost sistemov za gašenje s plinom v stavbah, obratih ali drugih zgradbah ter značilnosti različnih gasil in vrst požarov, za katere so primerno sredstvo za gašenje.
Obravnava sisteme za popolno zapolnitev, ki so povezani predvsem s stavbami, obrati in z drugimi posebnimi načini uporabe ter uporabljajo električno neprevodna sredstva za gašenje s plinom, ki po izpustu ne puščajo ostankov in za katere je trenutno na voljo dovolj podatkov, ki omogočajo potrjevanje značilnosti zmogljivosti in varnosti s strani ustreznega neodvisnega organa. Ta del standarda EN 15004 se ne uporablja za zadušitev eksplozije.
Ta del standarda EN 15004 ne pomeni odobritve sredstev za gašenje, ki jih v njem navajajo ustrezni organi, saj so lahko druga sredstva za gašenje enako sprejemljiva. CO2 ni vključen, ker je obravnavan v drugih mednarodnih standardih.
Ta del standarda EN 15004 se uporablja za sredstva za gašenje, navedena v preglednici 1. Bistveno je, da se uporablja skupaj z ločenimi deli standarda EN 15004 za specifična sredstva za gašenje, kot je navedeno v preglednici 1.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2019
1DGRPHãþD
SIST EN 15004-1:2008
9JUDMHQLJDVLOQLVLVWHPL6LVWHPL]DJDãHQMHVSOLQRPGHO 1DþUWRYDQMH
YJUDGQMDLQY]GUåHYDQMH ,62 VSUHPHQMHQ
Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and
maintenance (ISO 14520-1:2015, modified)
Ortsfeste Brandbekämpfungsanlagen - Löschanlagen mit gasförmigen Löschmitteln -
Teil 1: Planung, Installation und Instandhaltung (ISO 14520-1:2015, modifiziert)
Installations fixes de lutte contre l'incendie - Installations d'extinction à gaz - Partie 1 :
Calcul, installation et maintenance (ISO 14520-1:2015, modifiée)
Ta slovenski standard je istoveten z: EN 15004-1:2019
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 15004-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 13.220.20 Supersedes EN 15004-1:2008
English Version
Fixed firefighting systems - Gas extinguishing systems -
Part 1: Design, installation and maintenance (ISO 14520-
1:2015, modified)
Installations fixes de lutte contre l'incendie - Ortsfeste Brandbekämpfungsanlagen - Löschanlagen
Installations d'extinction à gaz - Partie 1 : Calcul, mit gasförmigen Löschmitteln - Teil 1: Planung,
installation et maintenance (ISO 14520-1:2015, Installation und Instandhaltung (ISO 14520-1:2015,
modifiée) modifiziert)
This European Standard was approved by CEN on 28 May 2018.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15004-1:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 5
Introduction . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 Use and limitations . 13
4.1 General . 13
4.2 Extinguishants . 14
4.2.1 General . 14
4.2.2 Environmental properties . 15
4.3 Electrostatic discharge . 15
4.4 Compatibility with other extinguishants . 15
4.5 Temperature limitations . 15
5 Safety . 15
5.1 Hazard to personnel . 15
5.2 Safety precautions . 16
5.2.1 General . 16
5.2.2 For normally occupied areas . 16
5.2.3 For normally unoccupied areas . 18
5.2.4 For unoccupiable areas . 18
5.3 Occupiable areas . 18
5.4 Electrical hazards . 19
5.5 Electrical earthing . 20
5.6 Electrostatic discharge . 20
6 System design . 20
6.1 General . 20
6.2 Extinguishant supply . 21
6.2.1 Quantity . 21
6.2.2 Quality . 21
6.2.3 Container arrangement . 21
6.2.4 Storage containers . 21
6.3 Distribution . 22
6.3.1 General . 22
6.3.2 Piping . 23
6.3.3 Fittings . 24
6.3.4 Pipe and valve supports . 24
6.3.5 Valves. 25
6.3.6 Nozzles . 25
6.3.7 Pressure reducing orifice assembly . 26
6.4 Detection, actuation and control systems . 26
6.4.1 General . 26
6.4.2 Automatic detection . 27
6.4.3 Operating devices . 27
6.4.4 Control equipment . 28
6.4.5 Operating alarms and indicators . 28
6.4.6 Stop device . 28
7 Extinguishant system design . 28
7.1 General . 28
7.2 Specifications, plans and approvals . 29
7.2.1 Specifications . 29
7.2.2 Working documents . 29
7.3 System flow calculations . 29
7.3.1 General . 29
7.3.2 Balanced and unbalanced system . 29
7.3.3 Friction losses . 31
7.3.4 Pressure drop. 31
7.3.5 Valves and fittings . 32
7.3.6 Piping length . 32
7.3.7 Drawings . 32
7.3.8 Liquefied gases — Specific requirements . 32
7.4 Enclosures . 32
7.5 Extinguishant concentration requirements. 33
7.5.1 Flame extinguishment . 33
7.5.2 Inerting . 34
7.6 Total flooding quantity . 34
7.6.1 General . 34
7.6.2 Liquefied gases . 34
7.6.3 Non-liquefied gas . 35
7.7 Altitude adjustment . 35
7.8 Duration of protection . 36
7.9 System performance . 36
7.9.1 Discharge time . 36
7.9.2 Extended discharge . 37
8 Commissioning and acceptance . 37
8.1 General . 37
8.2 Tests . 37
8.2.1 General . 37
8.2.2 Enclosure check . 37
8.2.3 Review of mechanical components . 37
8.2.4 Review of enclosure integrity . 39
8.2.5 Review of electrical components . 39
8.2.6 Preliminary functional tests . 40
8.2.7 System functional operational test . 40
8.2.8 Remote monitoring operations (if applicable) . 40
8.2.9 Control panel primary power source . 41
8.2.10 Completion of functional tests . 41
8.3 Completion certificate and documentation . 41
9 Inspection, maintenance, testing and training . 41
9.1 General . 41
9.2 Inspection . 41
9.2.1 General . 41
9.2.2 Container . 42
9.2.3 Hose . 42
9.2.4 Enclosures . 42
9.3 Maintenance . 42
9.3.1 General . 42
9.3.2 User’s programme of inspection . 43
9.3.3 Service schedule . 43
9.4 Training . 43
Annex A (normative) Working documents . 44
Annex B (normative) Determination of flame-extinguishing concentration of gaseous
extinguishants by the cup burner method . 46
Annex C (normative) Fire extinguishment/area coverage fire test procedure for
engineered and pre-engineered extinguishing units . 53
Annex D (normative) Method of evaluating inerting concentration of a fire extinguishant . 83
Annex E (normative) Door fan test for determining of minimum hold time . 85
Annex F (informative) System performance verification . 104
Annex G (informative) Safe personnel exposure guidelines . 105
Annex H (informative) Flow calculation implementation method and flow calculation
verification and testing for approvals . 112
Bibliography . 116
European foreword
This document (EN 15004-1:2019) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2019, and conflicting national standards
shall be withdrawn at the latest by September 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15004-1:2008.
This document contains the following technical changes in comparison to EN 15004-1:2008:
— the normative references have been updated;
— in Clause 3, the terms "lock-off device" and "regulated systems" have been included;
— in Clause 4.2.2, "Environmental properties" has been included;
— in Clause 5 "Safety", a table and equations for the maximum inert gas agent concentration at the
NOAEL and LOAEL limits as a function of altitude have been included;
— Clause 6.3 "Distribution" has been revised;
— Clause 9.3 "Maintenance" has been revised;
— in Annex B "Determination of flame-extinguishing concentration of gaseous extinguishants by the
cup burner method", the procedures for flammable liquids and gases have been replaced by the
procedures for inflammable liquids and gases and the reporting of results has been revised;
— Annex C "Fire extinguishment/area coverage fire test procedure for engineered and pre-engineered
extinguishing units" has been revised;
— in Annex E "Door fan test for determining of minimum hold time", the values for Interface
Thickness (Ip) and Interface Position (It) have been included and the method of estimating F has
been revised;
— in Annex G "Safe personnel exposure guidelines", the extinguishant HFC 236fa and CF3I have been
deleted;
— Annex H "Flow calculation implementation method and flow calculation verification and testing for
approvals" has been revised;
— the standard has been editorially revised.
The text of the International Standard ISO 14520-1:2015 from Technical Committee ISO/TC 21
“Equipment for fire protection and firefighting” of the International Organization for Standardization
(ISO) has been taken over as a European Standard by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI, with common modifications which are
indicated by a straight line in the margin of the text.
This European Standard will consist of the following parts, under the general title Fixed firefighting
systems – Gas extinguishing systems:
— Part 1: Design, installation and maintenance;
— Part 2: Physical properties and system design of gas extinguishing systems for FK-5-1-12
extinguishant;
— Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A
extinguishant;
— Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant;
— Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea
extinguishant;
— Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant;
— Part 7: Physical properties and system design of gas extinguishing systems for IG-01 extinguishant;
— Part 8: Physical properties and system design of gas extinguishing systems for IG-100 extinguishant;
— Part 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant;
— Part 10: Physical properties and system design of gas extinguishing systems for IG-541 extinguishant.
The International Standards ISO 14520-2 and ISO 14520-11, which dealt with CF I and HFC 236fa
extinguishants, respectively, have not been implemented by CEN, as CF I is only valid for local
application and HFC 236fa extinguishant is only applicable for portable fire extinguishers and local
application, respectively, which is not covered by the scope.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Introduction
Extinguishing systems covered in this part of EN 15004 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 part of EN 15004 has been prepared to meet
this need.
The requirements of this part of EN 15004 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 part of EN 15004 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 extinguishing systems be carefully maintained to ensure instant readiness when
required. Maintenance measures 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).
1 Scope
This document specifies requirements and gives recommendations for the design, installation, testing,
maintenance and safety of gas extinguishing systems in buildings, plants or other structures, and the
characteristics of the various extinguishants and types of fire for which they are a suitable extinguishing
medium.
This document describes total flooding systems primarily related to buildings, plants and other specific
applications, utilizing electrically non-conducting gaseous fire extinguishants that do not leave a residue
after discharge and for which there are sufficient data currently available to enable validation of
performance and safety characteristics by an appropriate independent authority. This document is not
applicable to explosion suppression.
This part of EN 15004 is not intended to indicate approval of the extinguishants listed therein by the
appropriate authorities, as other extinguishants may be equally acceptable. CO2 is not included as it is
covered by other International Standards.
This part of EN 15004 is applicable to the extinguishants listed in Table 1. This document is intended to
be used in conjunction with the given parts of EN 15004 for fire extinguishing agents in Table 1.
Table 1 — Listed extinguishant
Extinguishant Chemical Formula CAS No. European Standard
Dodecafluoro-2-
CF CF C(O)CF(CF )
FK-5–1-12 756–13–8 EN 15004–2
3 2 3 2
methylpentan-3-one
HCFC Blend A EN 15004–3
CHCl CF
HCFC-123 Dichlorotrifluoroethane 306–83–2
2 3
CHClF
HCFC-22 Chlorodifluoromethane 75–45–6
CFClFCF
HCFC-124 Chlorotetrafluoroethane 2837–89–0
Isopropenyl-1-
C H
5989–27–5
10 16
methylcyclohexene
CHF CF
HFC 125 Pentafluoroethane 354–33–6 EN 15004–4
2 3
CF CHFCF
HFC 227ea Heptafluoropropane 2252–84–8 EN 15004–5
3 3
CHF
HFC 23 Trifluoromethane 75–46–7 EN 15004–6
IG-01 Argon Ar 74040–37–1 EN 15004–7
N
IG-100 Nitrogen 7727–37–9 EN 15004–8
N
Nitrogen (50 %) 7727–37–9
IG-55 Argon (50 %) Ar 74040–37–1 EN 15004–9
N
Nitrogen (52 %) 7727–37–9
IG-541 Argon (40 %) Ar 74040–37–1 EN 15004–10
CO
Carbon dioxide (8 %) 124–38–9
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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
EN 12094 (all parts), Fixed firefighting systems — Components for gas extinguishing systems
EN 15004-2, Fixed firefighting systems — Gas extinguishing systems — Part 2: Physical properties and
system design of gas extinguishing systems for FK-5-1-12 extinguishant (ISO 14520-5:2006, modified)
EN 15004-3, Fixed firefighting systems — Gas extinguishing systems — Part 3: Physical properties and
system design of gas extinguishing systems for HCFC Blend A extinguishant (ISO 14520-6:2006, modified)
EN 15004-4, Fixed firefighting systems — Gas extinguishing systems — Part 4: Physical properties and
system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8:2006, modified)
EN 15004-5, Fixed firefighting systems — Gas extinguishing systems — Part 5: Physical properties and
system design of gas extinguishing systems for HFC 227ea extinguishant (ISO 14520-9:2006, modified)
EN 15004-6, Fixed firefighting systems — Gas extinguishing systems — Part 6: Physical properties and
system design of gas extinguishing systems for HFC 23 extinguishant (ISO 14520-10:2005, modified)
EN 15004-7, Fixed firefighting systems — Gas extinguishing systems — Part 7: Physical properties and
system design of gas extinguishing systems for IG-01 extinguishant (ISO 14520-12:2015, modified)
EN 15004-8, Fixed firefighting systems — Gas extinguishing systems — Part 8: Physical properties and
system design of gas extinguishing systems for IG-100 extinguishant (ISO 14520-13:2015, modified)
EN 15004-9, Fixed firefighting systems — Gas extinguishing systems — Part 9: Physical properties and
system design of gas extinguishing systems for IG-55 extinguishant (ISO 14520-14:2015, modified)
EN 15004-10, Fixed firefighting systems — Gas extinguishing systems — Part 10: Physical properties and
system design of gas extinguishing systems for IG-541 extinguishant (ISO 14520-15:2015, modified)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
approved
acceptable to a relevant authority
Note 1 to entry: See 3.2.
Note 2 to entry: In determining the acceptability of installations or procedures, equipment, or materials, the
authority can base acceptance on compliance with the appropriate International Standards.
3.2
authority
organization, office, or individual responsible for approving equipment, installations, or procedures
3.3
automatic/manual switch
means of converting the system from automatic to manual actuation
Note 1 to entry: This can be in the form of a manual switch on the control panel or other units, or a personnel
door interlock. In all cases, this changes the actuation mode of the system from automatic and manual to manual
only or vice versa.
3.4
competent person
designated person, suitably trained, qualified by knowledge and practical experience and with the
necessary instructions to enable the required tests and examinations to be carried out
3.5
disable device
manual shut-off valve installed into the discharge piping downstream of the agent containers; or
another type of device that mechanically prevents agent container actuation
Note 1 to entry: The actuation of this device provides an indication of system isolation.
Note 2 to entry: The intent is to prevent the discharge of agent into the hazard area when the disable device is
activated.
3.6
extinguishant
electrically non-conducting gaseous extinguishing agent that, upon evaporation, does not leave a
residue
Note 1 to entry: See Table 1.
Note 2 to entry: The terms “extinguishant” and “agent” are used interchangeably throughout in this part of
EN 15004.
3.7
clearance
air gap between equipment, including piping and nozzles and unenclosed or uninsulated live electrical
components at other than ground potential
3.8
concentration
3.8.1
design concentration
concentration of extinguishant, including a safety factor, required for system design purposes
3.8.2
maximum concentration
concentration achieved from the actual extinguishant quantity at the maximum ambient temperature in
the protected area
3.8.3
extinguishing concentration
minimum concentration of extinguishant required to extinguish a fire involving a particular fuel under
defined experimental conditions excluding any safety factor
3.9
engineered system
system in which the supply of extinguishant stored centrally is discharged through a system of pipes
and nozzles in which the size of each section of pipe and nozzle orifice has been calculated in
accordance with relevant parts of EN 15004
3.10
fill density
mass of extinguishant per unit volume of container
3.11
flooding quantity
mass or volume of extinguishant required to achieve the design concentration within the protected
volume
3.12
net volume
volume enclosed by the building elements around the protected enclosure, minus the volume of any
permanent impermeable building elements within the enclosure
3.13
hold time
period of time during which a concentration of extinguishant greater than the fire extinguishing
concentration surrounds the hazard
3.14
inspection
visual check to give reasonable assurance that the extinguishing system is fully charged and operable
Note 1 to entry: This is done by seeing that the system is in place, that it has not been activated or tampered with,
and that there is no obvious physical damage or condition to prevent operation.
3.15
installer
legal person that is responsible for the design and installation and is able to ensure that the quality
assurance is exercised
3.16
lock-off device
manual shut-off valve installed in the discharge piping downstream of the agent containers or another
type of device that mechanically prevents agent container actuation
Note 1 to entry: The actuation of this device provides an indication of system isolation.
Note 2 to entry: The intent is to prevent the discharge of agent into the hazard area when the lock-off device is
activated.
3.17
lowest observed adverse effect level
LOAEL
lowest concentration at which an adverse toxicological or physiological effect has been observed
3.18
maintenance
combination of all technical, administrative and managerial actions during the life cycle of an item
intended to retain it in, or restore it to, a state in which it can perform the required function
3.19
maximum working pressure
equilibrium pressure within a container at the maximum working temperature
Note 1 to entry: For liquefied gases, this is at the maximum fill density and can include superpressurization.
Note 2 to entry: The equilibrium pressure for a container in transit can differ from that in storage within a
building.
3.20
no observed adverse effect level
NOAEL
highest concentration at which no adverse toxicological or physiological effect has been observed
3.21
non-liquefied gas
gas or gas mixture (normally an inert gas), which, under service pressure and permissible service
temperature conditions, is always present in the gaseous form
3.22
normally occupied area
area intended for occupancy
3.23
normally unoccupied area
area not normally occupied by people but which may be entered occasionally for brief periods
3.24
pre-engineered systems
system consisting of a supply of extinguishant of specified capacity coupled to pipework with a
balanced nozzle arrangement up to a maximum permitted design
Note 1 to entry: No deviation is permitted from the limits specified by the manufacturer or authority.
3.25
regulated system
non-liquefied gas systems which produce a flow of gas at controlled reduced where the pressure
downstream of a pressure regulation device is limited to some maximum pressure under both flow and
no flow conditions during the discharge period
3.26
safety factor
multiplier of the agent extinguishing concentration to determine the agent minimum design
concentration
3.27
sea level equivalent of oxygen
oxygen concentration (volume percent) at sea level for which the partial pressure of oxygen matches
the ambient partial pressure of oxygen at a given altitude
3.28
selector valve
valve installed in the discharge piping downstream of the agent containers, to direct the agent to the
appropriate hazard enclosure
Note 1 to entry: It is used where one or more agent containers are arranged in order to selectively discharge
agent to any of several separate hazard enclosures.
3.29
superpressurization
addition of a gas to the extinguishant container, where necessary, to achieve the required pressure for
proper system operation
3.30
total flooding system
system arranged to discharge extinguishant into an enclosed space to achieve the appropriate design
concentration
3.31
unoccupiable area
area that cannot be occupied due to dimensional or other physical constraints
EXAMPLE Shallow voids and cabinets.
4 Use and limitations
4.1 General
Throughout all the parts of EN 15004, the word “shall” indicates a mandatory requirement; the word
“should” indicates a recommendation or that which is advised but not required.
The design, installation, service and maintenance of gaseous fire-extinguishing systems shall be
performed by those competent in fire extinguishing system technology. Maintenance and installation
shall only be done by qualified personnel and companies.
The hazards against which these systems offer protection, and any limitations on their use, shall be
contained in the system supplier’s design manual.
Total flooding fire-extinguishing systems are used primarily for protection against hazards that are in
enclosures or equipment that, in itself, includes an enclosure to contain the extinguishant. The following
are typical of such hazards, but the list is not exhaustive:
a) electrical and electronic hazards;
b) telecommunications facilities;
c) inflammable and combustible liquids and gases;
d) other high-value assets.
For the purposes of this document, the term “bar” shall be taken as “gauge”, unless otherwise indicated.
Concentrations or quantities expressed in percentages (%) shall be taken as by volume, unless
otherwise indicated.
4.2 Extinguishants
4.2.1 General
Any agent that is to be recognized by this part of EN 15004 or proposed for inclusion in this part of
EN 15004 shall first be evaluated in a manner equivalent to the process used by the US. Environmental
Protection Agency’s (EPA) SNAP Programme or other internationally recognized extinguishing agent
approval institutions.
The extinguishants referred to in this part of EN 15004 are electrically non-conductive media.
The extinguishants and specialized system parameters are each covered individually in the parts of
EN 15004 for specific extinguishants. These parts shall be used in conjunction with this part of
EN 15004.
Unless relevant testing has been carried out to the satisfaction of the authority, the extinguishants
referred to in the specific parts of EN 15004 shall not be used on fires involving the following:
a) chemicals containing their own supply of oxygen, such as cellulose nitrate;
b) mixtures containing oxidizing materials, such as sodium chlorate or sodium nitrate;
c) chemicals capable of undergoing autothermal decomposition, such as some organic peroxides;
d) reactive metals (such as sodium, potassium, magnesium, titanium and zirconium), reactive
hydrides, or metal amides, some of which may react violently with some gaseous extinguishants;
e) environments where significant surface areas exist at temperatures greater than the breakdown
temperature of the extinguishing agent and are heated by means other than the fire.
4.2.2 Environmental properties
Global warming potential (GWP) and ozone depletion potential (ODP) values applicable to the gaseous
extinguishing agents are detailed in EN 15004-2 to EN 15004-10.
NOTE GWP is a measure of how much a given mass of gas is estimated
...
Frequently Asked Questions
EN 15004-1:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and maintenance (ISO 14520-1:2015, modified)". This standard covers: This document specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of gas extinguishing systems in buildings, plants or other structures, and the characteristics of the various extinguishants and types of fire for which they are a suitable extinguishing medium. This document describes total flooding systems primarily related to buildings, plants and other specific applications, utilizing electrically non-conducting gaseous fire extinguishants that do not leave a residue after discharge and for which there are sufficient data currently available to enable validation of performance and safety characteristics by an appropriate independent authority. This document is not applicable to explosion suppression. This part of EN 15004 is not intended to indicate approval of the extinguishants listed therein by the appropriate authorities, as other extinguishants may be equally acceptable. CO2 is not included as it is covered by other International Standards. This part of EN 15004 is applicable to the extinguishants listed in Table 1. This document is intended to be used in conjunction with the given parts of EN 15004 for fire extinguishing agents in Table 1.
This document specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of gas extinguishing systems in buildings, plants or other structures, and the characteristics of the various extinguishants and types of fire for which they are a suitable extinguishing medium. This document describes total flooding systems primarily related to buildings, plants and other specific applications, utilizing electrically non-conducting gaseous fire extinguishants that do not leave a residue after discharge and for which there are sufficient data currently available to enable validation of performance and safety characteristics by an appropriate independent authority. This document is not applicable to explosion suppression. This part of EN 15004 is not intended to indicate approval of the extinguishants listed therein by the appropriate authorities, as other extinguishants may be equally acceptable. CO2 is not included as it is covered by other International Standards. This part of EN 15004 is applicable to the extinguishants listed in Table 1. This document is intended to be used in conjunction with the given parts of EN 15004 for fire extinguishing agents in Table 1.
EN 15004-1:2019 is classified under the following ICS (International Classification for Standards) categories: 13.220.20 - Fire protection. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 15004-1:2019 has the following relationships with other standards: It is inter standard links to EN 15004-1:2008, EN 15004-1:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 15004-1:2019 is associated with the following European legislation: EU Directives/Regulations: 305/2011; Standardization Mandates: M/109. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 15004-1:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
The EN 15004-1:2019 standard provides comprehensive guidelines and requirements for the design, installation, testing, maintenance, and safety of gas extinguishing systems. This standard is critical for ensuring that such systems are effectively integrated into buildings, plants, and other structures, addressing the essential characteristics of the various extinguishants suitable for different types of fires. One of the primary strengths of EN 15004-1:2019 is its focus on total flooding systems. It emphasizes the utilization of electrically non-conducting gaseous fire extinguishants, which are particularly advantageous in environments where residue from extinguishing agents can pose a risk to both operations and equipment. This aspect underscores the document’s relevance in modern fire safety management, where minimal disruption and effective suppression are key priorities. The structured approach to testing and validation outlined in the standard is another significant strength. By mandating the use of extinguishants that have sufficient performance and safety data available for validation by appropriate independent authorities, the document bolsters the reliability of gas extinguishing systems. This adds a crucial layer of assurance for stakeholders in various industries looking to implement these safety measures. Additionally, the clarity on the suitability of different extinguishants, specifically those listed in Table 1 of the standard, allows for a focused application of EN 15004-1:2019 in conjunction with other relevant parts of EN 15004. This integration is beneficial for fire safety professionals in selecting the right extinguishing agents that meet regulatory and safety standards. While the standard addresses the performance of gas extinguishing systems, it also notably clarifies that it does not confer approval for the extinguishants listed, allowing for a more inclusive perspective of options available in the market. This not only enhances the flexibility of fire suppression solutions but also encourages ongoing innovation within the field. Moreover, the explicit mention that CO2 is excluded because it is addressed by other International Standards speaks to the importance of focused guidance, helping practitioners avoid confusion about the application of different extinguishing mediums. In summary, EN 15004-1:2019 is a vital standard that systematically outlines the requisites for gas extinguishing systems, affirming its relevance to fire safety compliance and operational effectiveness across multiple sectors. Its strengths lie in its detailed scope concerning the selection, testing, and maintenance of designated extinguishants, establishing a benchmark for best practices in the design and implementation of gas extinguishing systems.
SIST EN 15004-1:2019 표준은 고정 소화 시스템의 가스 소화 시스템에 대한 설계, 설치, 유지 관리 및 안전 요구 사항을 규명하고 있으며, 이는 다양한 소화제 및 화재 유형에 적합한 소화 매체의 특성을 다룹니다. 이 문서는 주로 건물, 시설 및 특정 응용 분야에 대한 전체 침수 시스템을 설명하며, 전기적으로 비전도성인 기체 소화제를 사용하고, 방출 후 잔여물이 남지 않는 소화 시스템에 대한 요구 사항을 제시합니다. 이 표준의 강점은 소화 시스템의 성능 및 안전성을 독립적인 권위에 의해 검증할 수 있는 충분한 데이터가 확보되어 있다는 점입니다. 또한, EN 15004-1:2019는 각종 소화제가 안전하게 사용될 수 있는 환경을 조성하며, 이는 화재 안전성을 높이는 데 기여합니다. 이 표준은 실행과 관련된 구체적인 권장 사항을 제공하여 사용자가 보다 적절한 소화 시스템을 구축할 수 있도록 돕습니다. 또한, 이 문서는 특정 소화제가 적합하다고 명시하여, 각국의 승인 기관에 따라 다른 소화제가 동일하게 허용될 수 있다는 점에서도 중요합니다. 이는 사용자의 선택 폭을 넓히고, 다양한 환경에서의 소화 시스템 설계를 유연하게 합니다. 이는 특히 특정 소화제를 사용하는 것과 관련하여 다각적인 접근이 가능하게 하여 시설의 안전성을 더욱 강화합니다. EN 15004-1:2019는 가스 소화 시스템의 안전성과 효율성을 확보하기 위한 필수적인 기준이 되어 주며, 이는 다양한 산업 및 상업 분야에서의 화재 안전 관리에 중대한 영향을 미칩니다. 표준의 적용 범위와 내용은 오늘날 건물과 시설의 안전성을 높이는 데 있어 매우 관련성이 높아, 이 분야의 전문가들에게 반드시 참고해야 할 자료입니다.
SIST EN 15004-1:2019は、固定消火システムのガス消火システムに関する設計、設置、維持管理の要件を具体的に定義しています。この標準は、建物やプラント、その他の構造物におけるガス消火システムの設計・設置・試験・メンテナンスのための重要なガイドラインを提供し、火災に対する適切な消火手段としての特性を幅広く網羅しています。 この標準の強みは、主に電気的に導電性のない気体消火剤を使用した全体的浸水システムの設計に特化している点です。これにより、消火剤の放出後に残留物が残らないため、後処理が容易で、クリーンな環境を保つことができます。さらに、独立した機関による性能と安全性の確認が可能な十分なデータを備えた消火剤についてのガイドラインを提供している点も評価されます。 この標準は、EN 15004の他の関連部分と連携する形で利用されることを意図しており、標準のスコープ内での消火剤の選定においても、重要な参考資料となります。また、消火剤のリストには、安全性やパフォーマンスが確認されたものが記載されており、利用者は信頼性の高い消火システムを設計することができるでしょう。 EN 15004-1:2019は、特に建物やプラントといった特定のアプリケーションにおいて、適切な消火手段を確実に選択・実施するための基準となっており、火災安全への重要な貢献を果たしています。
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