EN 14972-1:2020

Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection and maintenance

This document specifies requirements and gives recommendations for the design, installation, inspection and maintenance of all types of fixed land based water mist systems.
This document is intended to apply to water mist automatic nozzle systems and water mist deluge systems supplied by stand alone or pumped systems.
The document covers only applications and occupancies which are covered by the fire test protocols of the EN 14972 series.
Aspects of water mist associated with explosion protection and/or use within vehicles are not covered by this document.
This document does not cover all legislative requirements. In certain countries specific national regulations apply and take precedence over this document. Users of this document are advised to inform themselves of the applicability or non-applicability for this document by their national responsible authorities.

Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Teil 1: Planung, Einbau, Inspektion und Wartung

Dieses Dokument legt die Anforderungen an die Planung, Errichtung, Prüfung und Instandhaltung aller Arten von ortsfesten Feinsprüh-Löschanlagen fest.
Dieses Dokument ist anzuwenden für Feinsprühanlagen mit automatischen Düsen und Feinsprüh-Löschanlagen mit offenen Düsen, die von einem eigenständigen System oder Pumpensystemen versorgt werden.
Das Dokument deckt nur Anwendungen und Belegungen ab, die durch die Brandprüfungsprotokolle der Normenreihe EN 14972 abgedeckt sind.
Aspekte von Wassernebel, die den Explosionsschutz und/oder die Verwendung innerhalb von Fahrzeugen betreffen, liegen außerhalb des Anwendungsbereichs dieses Dokuments.
Dieses Dokument deckt nicht alle gesetzlichen Anforderungen ab. In manchen Ländern gelten spezifische nationale Richtlinien, die Vorrang vor diesem Dokument haben. Anwendern dieses Dokuments wird geraten, sich über die Anwendbarkeit oder Nichtanwendbarkeit dieses Dokuments durch ihre nationalen zuständigen Stellen zu informieren.

Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 1 : Conception, installation, inspection et maintenance

Le présent document spécifie les exigences et donne des recommandations relatives à la conception, à l’installation, à l’inspection et à la maintenance de tous les types de systèmes fixes à brouillard d’eau terrestres.
Le présent document est applicable aux systèmes à brouillard d’eau à buses automatiques et aux systèmes à brouillard d’eau de type déluge alimentés par des systèmes autonomes ou avec pompes.
Le présent document traite uniquement des applications et affectations couvertes par les protocoles d’essai au feu de la série de normes EN 14972.
Les aspects du brouillard d’eau associés à la protection contre l’explosion et/ou une utilisation à l’intérieur des véhicules ne sont pas couverts par le présent document.
Le présent document ne traite pas des exigences légales. Dans certains pays, des réglementations nationales spécifiques s’appliquent et prévalent sur le présent document. Il est conseillé aux utilisateurs du présent document de s’informer auprès des autorités nationales responsables de l’applicabilité ou de la non-applicabilité du présent document.

Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 1. del: Načrtovanje, vgradnja, pregled in vzdrževanje

General Information

• Status: Published
• Publication Date: 22-Dec-2020
• Withdrawal Date: 29-Jun-2021
• ICS: 13.220.20 - Fire protection
• Technical Committee: CEN/TC 191 - Fixed firefighting systems
• Drafting Committee: CEN/TC 191/WG 10 - Water mist systems
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 23-Dec-2020
• Due Date: 17-Sep-2019
• Completion Date: 23-Dec-2020
• Ref Project: SIST EN 14972-1:2021 - Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection and maintenance

Relations

• Replaces: CEN/TS 14972:2011 - Fixed firefighting systems - Watermist systems - Design and installation
• Effective Date: 08-Jun-2022
• Amended By: EN 14972-1:2020/prA1 - Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection and maintenance
• Effective Date: 13-Mar-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2021
Nadomešča:
SIST-TS CEN/TS 14972:2011
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 1. del: Načrtovanje, vgradnja,
pregled in vzdrževanje
Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection
and maintenance
Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Teil 1: Planung,
Einbau, Inspektion und Wartung
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 1 :
Conception, installation, inspection et maintenance
Ta slovenski standard je istoveten z: EN 14972-1:2020
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14972-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2020
EUROPÄISCHE NORM
ICS 13.220.20 Supersedes CEN/TS 14972:2011
English Version
Fixed firefighting systems - Water mist systems - Part 1:
Design, installation, inspection and maintenance
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-
à brouillard d'eau - Partie 1 : Conception, installation, Löschanlagen - Teil 1: Planung, Einbau, Inspektion und
inspection et maintenance Wartung
This European Standard was approved by CEN on 11 October 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14972-1:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 7
Introduction . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Abbreviations . 18
4 Design . 18
4.1 Design principal . 18
4.1.1 General . 18
4.1.2 General requirement . 18
4.1.3 Full scale fire testing procedures . 18
4.2 Design, installation, operation and maintenance manual . 19
4.2.1 General . 19
4.2.2 Content of the DIOM manual . 19
4.3 Water mist systems using gas for their operation . 21
4.4 Use of additives . 21
4.5 Design parameters . 21
4.6 Water and gas supply . 21
4.6.1 Pumped systems requirements . 21
4.6.2 Self-contained systems requirements . 21
4.7 Compartment protection . 21
4.7.1 General . 21
4.7.2 Compartment . 21
4.7.3 Fire hazard . 22
4.7.4 Design requirements . 22
4.8 Requirements for different types of water mist deluge systems . 22
4.8.1 Local application systems . 22
4.8.2 Local application systems with multiple hazards . 22
4.8.3 Volume protection water mist systems . 22
4.8.4 Zoned protection systems . 22
4.8.5 Activation and control . 22
4.9 Design of water mist automatic nozzle systems . 23
4.9.1 Extent of protection . 23
4.9.2 Permitted exceptions within a building. 23
4.9.3 Material reaction . 23
4.9.4 System design . 23
4.9.5 Nozzle selection and positioning . 28
4.9.6 Alarm device . 28
4.9.7 Test connection . 28
4.9.8 Air velocity and openings . 28
4.10 Design of water mist deluge system . 29
4.10.1 Nozzle selection and positioning . 29
4.10.2 Air velocity and openings . 29
4.10.3 Automatic shut-down . 29
4.11 Fire detection and fire alarm systems activating the water mist system . 29
4.11.1 General requirements . 29
4.11.2 Fire detection and fire alarm systems continuity . 29
4.11.3 Avoiding false alarms by water mist discharge . 30
4.11.4 Manual activation . 30
4.11.5 Electrical detection and activation . 30
4.11.6 Non-electrical detection . 31
4.12 Hydraulic and pneumatic calculations . 31
4.13 Water, propellant and atomizing gas supply design . 31
4.13.1 General . 31
4.13.2 Connection to public or town mains . 31
4.13.3 Flow requirement . 32
4.13.4 Maximum and minimum water pressure . 32
4.13.5 Discharge operating time . 32
4.13.6 Type of water supply . 34
4.13.7 Availability . 35
4.13.8 Housing of equipment for water supplies . 39
5 Installation . 39
5.1 General . 39
5.1.1 DIOM manual . 39
5.1.2 Electrical safety . 39
5.1.3 High Voltage live electrical equipment . 40
5.1.4 Electrical clearances . 40
5.2 Nozzle . 40
5.2.1 General . 40
5.2.2 Automatic nozzle . 41
5.2.3 Open nozzle . 41
5.3 Pipe . 42
5.3.1 General . 42
5.3.2 Protection against mechanical damages .
...