prEN 14972-17

SLOVENSKI STANDARD
01-oktober-2024
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 17. del: Protokol preskušanja
sistemov s samodejnimi šobami za stanovanjske prostore
Fixed firefighting systems - Water mist systems - Part 17: Test protocol for residential
occupancies for automatic nozzle systems
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 17: Prüfprotokoll für
Wohnbelegungen für automatische Düsensysteme
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 17 :
Protocole d'essai des systèmes à buses automatiques pour locaux résidentiels
Ta slovenski standard je istoveten z: prEN 14972-17
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2024
ICS 13.220.20; 13.220.99
English Version
Fixed firefighting systems - Water mist systems - Part 17:
Test protocol for residential occupancies for automatic
nozzle systems
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen -
à brouillard d'eau - Partie 17 : Protocole d'essai des Wassernebelsysteme - Teil 17: Prüfprotokoll für
systèmes à buses automatiques pour locaux Wohnbelegungen für automatische Düsensysteme
résidentiels
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 191.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14972-17:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General requirements . 4
4.1 General. 4
4.2 Fire test categories . 4
5 Fuel packages . 6
5.1 Ignition package . 6
5.2 Fuel package . 6
5.3 Plywood panels . 7
6 Test arrangements . 8
7 Fire tests . 18
7.1 General. 18
7.2 Description of fire tests for ceiling mounted nozzles . 18
7.3 Description of fire tests for sidewall mounted nozzles . 18
8 Pass/fail criteria . 19
9 Test report . 19
Bibliography . 20

European foreword
This document (prEN 14972-17:2024) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
EN 14972, 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 might be added. For current
status of published standards refer to www.cencenelec.eu.

1 Scope
This document specifies fire testing requirements for water mist systems used for fire protection of
domestic and residential occupancies up to a maximum ceiling height of 5,5 m.
EXAMPLE Examples for residential occupancies are family dwelling/house, bed and breakfast, apartment
buildings, blocks of flats, care homes, small hotels or hostels, and residential areas in hotel bedrooms and guest
corridors.
NOTE Some countries might have a national annex with guidance on the maximum height of the building,
minimum design area and any additional requirements.
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 520:2004+A1:2009, Gypsum plasterboards — Definitions, requirements and test methods
EN 14972-1:2020, Fixed firefighting systems — Water mist systems — Part 1: Design, installation,
inspection and maintenance
ISO 5660-1, Reaction-to-fire tests — Heat release, smoke production and mass loss rate — Part 1: Heat
release rate (cone calorimeter method) and smoke production rate (dynamic measurement)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14972-1 apply.
ISO and IEC maintain terminological 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/
4 General requirements
4.1 General
Up to a maximum of 5 nozzles used in the fire tests shall be kept for later verification.
The automatic nozzle system shall be a wet pipe water mist system.
The nozzles shall be automatic nozzles.
Sidewall nozzles shall have the thermal release element within 100 mm to 300 mm below the ceiling and
in accordance with the installation instructions.
4.2 Fire test categories
Fire tests are described in Clause 7.
Room testing with the following fire packages: A, B, C and D, shall be carried out for all ceiling mounted
nozzle systems.
Room testing with the following fire packages: F1, F2, F3 and G, shall be carried out for all sidewall
mounted nozzle systems.
Fire tests for open spaces (larger rooms) or taller rooms are optional and shall be carried out only if
requested by the manufacturer.
The fire test that shall be carried out for each fire test series is specified in Table 1.
Descriptions for fire tests for ceiling mounted nozzles are given in Table 2, while Table 3 covers fire test
descriptions for sidewall mounted nozzles.
Table 1 — Fire test series
Fire test Fire tests for ceiling Fire tests for sidewall Test room ceiling
series mounted nozzles mounted nozzles height
a A F1 2,5 m and 3,5 m
Room
B, C, D F2, F3, G 2,5 m or 3,5 m
b c c 2,5 m or 3,5 m
Open space E H
b c c max. 5,5 m
Taller rooms A, B, C, D, E F1, F2, F3, G, H
NOTE Some countries might have a national annex with guidance (additional requirements) on
the test room ceiling height.
a
Mandatory test series.
b
Optional test series.
c
Two tests.
Table 2 — Description of fire tests for ceiling mounted nozzles
Fire test Description Clause
A Corner test 7.2
B Between two nozzle test 7.2
C Beneath a nozzle test 7.2
D Ventilation test 7.2
E Open room test 7.2
Table 3 — Description of fire tests for sidewall mounted nozzles
Fire test Description Clause
F1, F2 Corner tests 7.3
F3 Between two nozzle test 7.3
G Ventilation test 7.3
H Open room test 7.3
5 Fuel packages
5.1 Ignition package
Ignition package, consisting of a square tray of internal dimensions 300 mm × 300 mm × 100 mm deep,
made from 12-gauge steel containing 200 ml of commercial grade heptane floated on water of 25 mm
minimum depth.
A wood crib consisting of 8 layers of wood sticks of Pinus sylvestris, Fir lumber or kiln-dried Spruce, with
4 sticks per layer spaced 50 mm apart, shall be placed on top of the steel tray. An optional lip can be added
to the steel tray to provide stability to the crib. The wood sticks shall be 38 mm × 38 mm cross-section by
305 mm long (actual) and plane finish. The complete wood crib shall have the nominal dimensions of
305 mm × 305 mm × 305 mm and shall weigh (8 250 ± 250) g (see Figure 1 and Figure 2).
Two cotton wicks, each 250 mm long, soaked in 100 ml of heptane, of which 150 mm of each wick, shall
be placed on a fire brick and laid along the edge of the foam sheets with the remaining 100 mm exposed.
5.2 Fuel package
Fuel package, consisting of 2 sheets of non-fire resisting low density Polyether foam or Polypropylene
Oxide Polyol, Polyether foam 775 mm × 865 mm × 75 mm, in accordance to Table 4. Each sheet shall be
glued to a sacrificial backing board, 775 mm × 865 mm × (12 ± 1) mm, which is attached to a wooden
supporting frame (see Figure 1 and Figure 2). The foam sheets shall be flush with the top and sides of the
sacrificial board and frame.
Table 4 — Foam specifications
Characteristic Foam type
Low density polyether foam Polypropylene Oxide Polyol,
Polyether foam
Density 3 3
(20 ± 3) kg/m (27,2 to 30,4) kg/m
Peak Heat Release Rate tested 2 2
(345 ± 85) kW/m (345 ± 85) kW/m
as described in Table 5 (average
of 5 samples)
Heat of combustion tested as (24 ± 3) MJ/kg (22 ± 3) MJ/kg
described in Table 5 (average of
5 samples)
a
Table 5 — Cone calorimeter test for foam
Test conditions 2
— Irradiance: 30 kW/m
— Horizontal position
— Sample thickness: (25 ± 2) mm
— No frame retainer shall be used
a
The test shall be in accordance with ISO 5660-1.

5.3 Plywood panel
...