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

Status
Published
Publication Date
26-Mar-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
27-Mar-2019
Completion Date
27-Mar-2019

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SLOVENSKI STANDARD
SIST EN 15004-1:2019
01-maj-2019
1DGRPHãþD
SIST EN 15004-1:2008
9JUDMHQLJDVLOQLVLVWHPL6LVWHPL]DJDãHQMHVSOLQRPGHO1DþUWRYDQMH
YJUDGQMDLQY]GUåHYDQMH ,62VSUHPHQMHQ

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
SIST EN 15004-1:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 15004-1:2019
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SIST EN 15004-1:2019
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.
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SIST EN 15004-1:2019
EN 15004-1:2019 (E)
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

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SIST EN 15004-1:2019
EN 15004-1:2019 (E)

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

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SIST EN 15004-1:2019
EN 15004-1:2019 (E)

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

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SIST EN 15004-1:2019
EN 15004-1:2019 (E)
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;
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SIST EN 15004-1:2019
EN 15004-1:2019 (E)

— 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.
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SIST EN 15004-1:2019
EN 15004-1:2019 (E)
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).
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SIST EN 15004-1:2019
EN 15004-1:2019 (E)
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-conduct
...

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