EN 14972-7:2023
(Main)Fixed firefighting systems - Water mist systems - Part 7: Test protocol for commercial low hazard occupancies for automatic nozzle systems
Fixed firefighting systems - Water mist systems - Part 7: Test protocol for commercial low hazard occupancies for automatic nozzle systems
This document specifies fire testing requirements for water mist systems used for fire protection of commercial low hazard occupancies up to 5 m ceiling height.
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 7: Prüfprotokoll für kommerzielle Belegung geringer Gefährdung für automatische Düsensysteme
Dieses Dokument legt die Anforderungen an Brandversuche für Wassernebelsysteme fest, die für den Brandschutz von kommerziellen Belegungen geringer Gefährdung bis zu einer Deckenhöhe von 5 m verwendet werden.
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 7 : Protocole d'essai des systèmes à buses automatiques pour locaux commerciaux à risque faible
Le présent document spécifie les exigences en matière d'essais au feu pour les systèmes à brouillard d'eau utilisés pour la protection contre l'incendie des locaux commerciaux à risque faible d'une hauteur sous plafond allant jusqu'à 5 m.
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 7. del: Protokol preskušanja sistemov s samodejnimi šobami za komercialne prostore z nizko stopnjo nevarnosti
Ta dokument določa zahteve glede požarnega preskušanja za sisteme s pršečo vodo, ki se uporabljajo za požarno zaščito komercialnih prostorov z nizko stopnjo nevarnosti in višino stropa do 5 m.
PRIMER: Primeri komercialnih prostorov z nizko stopnjo nevarnosti so stanovanja, cerkve, skriti prostori, telovadnice, bolnišnice, hoteli, knjižnice, muzeji, pisarne, prostori za sedenje v restavracijah, šole in predavalnice, neizkoriščena podstrešja.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2023
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 7. del: Protokol preskušanja
sistemov s samodejnimi šobami za komercialne prostore z nizko stopnjo
nevarnosti
Fixed firefighting systems - Water mist systems - Part 7: Test protocol for commercial low
hazard occupancies for automatic nozzle systems
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 7: Prüfprotokoll für
kommerzielle Belegung geringer Gefährdung für automatische Düsensysteme
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 7 :
Protocole d'essai des systèmes à buses automatiques pour locaux commerciaux à
risque faible
Ta slovenski standard je istoveten z: EN 14972-7:2023
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 14972-7
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 13.220.20
English Version
Fixed firefighting systems - Water mist systems - Part 7:
Test protocol for commercial low hazard occupancies for
automatic nozzle systems
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen -
à brouillard d'eau - Partie 7 : Protocole d'essai des Wassernebelsysteme - Teil 7: Prüfprotokoll für
systèmes à buses automatiques pour locaux kommerzielle Belegung geringer Gefährdung für
commerciaux à risque faible automatische Düsensysteme
This European Standard was approved by CEN on 9 July 2023.
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14972-7:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 5
4.1 General. 5
4.2 Categories . 6
4.2.1 Category I system . 6
4.2.2 Category II system . 6
4.2.3 Category III system . 6
5 Fuel packages . 6
5.1 Fuel package 1 (bunk beds) . 6
5.2 Fuel package 2 (corner crib and simulated furniture) . 6
5.3 Fuel package 3 (sofas) . 6
5.4 Fuel package 4 (simulated work station). 6
6 Test arrangement . 9
6.1 Test room A (small compartment) . 9
6.2 Test room B (large compartment) . 9
6.3 Test room C (open space) . 9
6.4 Test room D: open space . 9
7 Test equipment requirements . 9
8 Test conditions . 11
9 Fire tests . 12
9.1 Procedure . 12
9.2 Small compartment with bunk beds . 13
9.3 Large compartment with corner crib and simulated furniture . 13
9.4 Open space with sofas under one nozzle . 14
9.5 Open space with sofas between two nozzles . 14
9.6 Open space with sofas between four nozzles . 14
9.7 Open space with simulated work station under one nozzle . 14
9.8 Open space with simulated work station between two nozzles . 14
9.9 Open space with simulated work station between four nozzles . 15
10 Pass/fail criteria . 15
11 Test report . 16
Bibliography . 17
European foreword
This document (EN 14972-7:2023) 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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
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.
The EN 14972 series, Fixed firefighting systems — Water mist systems, consists of the following parts:
— Part 1: Design, installation, inspection and maintenance
— Part 2: Test protocol for shopping areas for automatic nozzle systems
— Part 3: Test protocol for office, school class rooms and hotel for automatic nozzle systems
— Part 4: Test protocol for non-storage occupancies for automatic nozzle systems
— Part 5: Test protocol for car garages for automatic nozzle systems
— Part 6: Test protocol for false floors and false ceilings for automatic nozzle systems
— Part 7: Test protocol for commercial low hazard occupancies for automatic nozzle systems
— Part 8: Test protocol for machinery in enclosures exceeding 260 m for open nozzle systems
— Part 9: Test protocol for machinery in enclosures not exceeding 260 m for open nozzle systems
— Part 10: Test protocol for atrium protection with sidewall nozzles for open nozzle systems
— Part 11: Test protocol for cable tunnels for open nozzle systems
— Part 12: Test protocol for commercial deep fat cooking fryers for open nozzle systems
— Part 13: Test protocol for wet benches and other similar processing equipment for open nozzle systems
— Part 14: Test protocol for combustion turbines in enclosures exceeding 260 m for open nozzle systems
— Part 15: Test protocol for combustion turbines in enclosures not exceeding 260 m for open nozzle
systems
— Part 16: Test protocol for industrial oil cookers for open nozzle systems
— Part 17: Test protocol for residential occupancies for automatic nozzle systems
NOTE This list includes standards that are in preparation and other standards can be added. For current status
of published standards refer to www.cencenelec.eu.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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, Türkiye and the United
Kingdom.
1 Scope
This document specifies fire testing requirements for water mist systems used for fire protection of
commercial low hazard occupancies up to 5 m ceiling height.
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 636, Plywood — Specifications
EN 12259-1, Fixed firefighting systems — Components for sprinkler and water spray systems — Part 1:
Sprinklers
EN 14972-1:2020, Fixed firefighting systems — Water mist systems — Part 1: Design, installation,
inspection and maintenance
EN 14972-4:— , Fixed firefighting systems — Water mist systems — Part 4: Test protocol for non-storage
occupancies for automatic nozzle systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14972-1 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
low hazard occupancy
lightly loaded non-storage and non-manufacturing areas with ordinary combustibles
Note 1 to entry: Areas in occupancies with relatively low rates of heat release, with maximum fuel loads and
obstructions, as indicated in test fire arrangements.
Note 2 to entry: Fuel loads are specified in 5.1 to 5.4.
4 General requirements
4.1 General
The low hazard occupancy tests comprise small, large and open compartments, plus open plan office
simulations. The water mist system shall pass all the tests for the categories for which it is to be used.
Up to a maximum of 5 nozzles used in the fire tests shall be kept for later verification.
Under preparation. Stage at the time of publication: prEN 14972-4:2023.
4.2 Categories
4.2.1 Category I system
2 2
This system covers rooms up to 37 m containing low hazard fire loads ≤ 150 MJ/m up to 2,4 m ceiling
height.
4.2.2 Category II system
This system covers unlimited rooms containing low hazard fire loads, ≤ 150 MJ/m up to 5 m ceiling
height.
4.2.3 Category III system
This system covers unlimited rooms containing low hazard fire loads, ≤ 500 MJ/m up to 5 m ceiling
height.
5 Fuel packages
5.1 Fuel package 1 (bunk beds)
This fuel package is specified in EN 14972-4:— , 7.1.
5.2 Fuel package 2 (corner crib and simulated furniture)
This fuel package is specified in EN 14972-4:— , 7.2.
5.3 Fuel package 3 (sofas)
This fuel package is specified in EN 14972-4:— , 7.3.
5.4 Fuel package 4 (simulated work station)
The simulated work station fuel load arrangement shall be as shown in Figure 1.
Two walls shall be constructed 2,4 m wide × 1,8 m high from two layers of plasterboard attached to a
timber frame. The walls shall be positioned to form a corner arrangement. The front face of t
...
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