SIST EN 15004-1:2019

SLOVENSKI STANDARD
SIST EN 15004-1:2019
01-maj-2019
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SIST EN 15004-1:2008
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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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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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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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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
3
extinguishants, respectively, have not been implemented by CEN, as CF I is only valid for local
3
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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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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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
...