oSIST prEN 14972-11:2022

Fixed firefighting systems - Water mist systems - Part 11: Test protocol for cable tunnels for open nozzle systems

This document specifies fire testing requirements for water mist systems used for fire protection of cable tunnels. The test protocol covers deluge water mist systems with open nozzles which are either activated with an automatic release system, e.g. fire detection system, or manually released.

Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 11: Prüfprotokoll für Kabeltunnel für offene Düsensysteme

Dieses Dokument legt Anforderungen an Brandversuche für Wassernebelsysteme fest, die für den Brandschutz von Kabeltunneln verwendet werden. Das Prüfprotokoll deckt Sprühwasser-Löschanlagen mit offenen Düsen, die entweder durch ein automatisches Auslösesystem, z. B. eine Brandmeldeanlage, oder von Hand ausgelöst werden, ab.

Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 11 : Protocole d'essai des systèmes à buses ouvertes pour galeries de câbles

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 galeries de câbles. Le protocole d'essai couvre les systèmes à brouillard d'eau de type déluge, avec buses ouvertes, qui sont soit déclenchés au moyen d'un système à activation automatique (par exemple, système de détection d'incendie), soit déclenchés manuellement.

Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 11. del: Protokol preskušanja sistemov z odprtimi šobami za kabelske hodnike

General Information

• Status: Not Published
• Public Enquiry End Date: 13-Jul-2022
• ICS: 13.220.10 - Fire-fighting
• ICS: 13.220.20 - Fire protection
• Technical Committee: POZ - Požarna varnost
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 03-May-2022
• Due Date: 20-Sep-2022
• Ref Project: prEN 14972-11 - Fixed firefighting systems - Water mist systems - Part 11: Test protocol for cable tunnels for open nozzle systems

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 14972-11:2022
01-julij-2022
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 11. del: Protokol preskušanja
sistemov z odprtimi šobami za kabelske hodnike

Fixed firefighting systems - Water mist systems - Part 11: Test protocol for cable tunnels

for open nozzle systems

Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 11: Prüfprotokoll für

Kabeltunnel für offene Düsensysteme

Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 11 :

Protocole d'essai des systèmes à buses ouvertes pour galeries de câbles
Ta slovenski standard je istoveten z: prEN 14972-11
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 14972-11:2022 en,fr,de

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

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oSIST prEN 14972-11:2022
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oSIST prEN 14972-11:2022
DRAFT
EUROPEAN STANDARD
prEN 14972-11
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2022
ICS 13.220.20
English Version
Fixed firefighting systems - Water mist systems - Part 11:
Test protocol for cable tunnels for open nozzle systems

Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen -

à brouillard d'eau - Partie 11 : Protocole d'essai des Wassernebelsysteme - Teil 11: Prüfprotokoll für

systèmes à buses ouvertes pour galeries de câbles Kabeltunnel für offene Düsensysteme

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, Turkey 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

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14972-11:2022 E

worldwide for CEN national Members.
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oSIST prEN 14972-11:2022
prEN 14972-11:2022 (E)
Contents Page

European foreword ............................................................................................................................................ 3

1 Scope .......................................................................................................................................................... 4

2 Normative references .......................................................................................................................... 4

3 Terms and definitions ......................................................................................................................... 4

4 General requirements ......................................................................................................................... 4

5 Fuel packages ......................................................................................................................................... 5

5.1 General...................................................................................................................................................... 5

5.2 Tunnel enclosure .................................................................................................................................. 7

5.3 Cable tray arrangement ...................................................................................................................... 8

5.4 Cable fire load ........................................................................................................................................ 8

5.5 Conditioning of fire load ..................................................................................................................... 9

5.6 Ignition source ....................................................................................................................................... 9

5.7 Ventilation conditions ......................................................................................................................... 9

6 Test arrangement ................................................................................................................................. 9

7 Test equipment requirements ......................................................................................................... 9

8 Instrumentation requirements ..................................................................................................... 10

8.1 General.................................................................................................................................................... 10

8.2 Temperature......................................................................................................................................... 10

8.3 Air velocity ............................................................................................................................................ 10

8.4 Pressure ................................................................................................................................................. 11

8.5 Time ......................................................................................................................................................... 11

9 Test criteria ........................................................................................................................................... 11

9.1 General.................................................................................................................................................... 11

9.2 Carrying out the test with automatic release system ............................................................ 12

9.3 Carrying out the test without automatic release system (manual release system) ... 12

9.4 Pass/fail criteria .................................................................................................................................. 12

10 Test report ............................................................................................................................................. 12

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oSIST prEN 14972-11:2022
prEN 14972-11:2022 (E)
European foreword

This document (prEN 14972-11:2022) 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 may be added. For current status

of published standards refer to www.cencenelec.eu.
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oSIST prEN 14972-11:2022
prEN 14972-11:2022 (E)
1 Scope

This document specifies fire testing requirements for water mist systems used for fire protection of cable

tunnels. The test protocol covers deluge water mist systems with open nozzles which are either activated

with an automatic release system, e.g. fire detection system, or manually released.

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 13501-1:2018, Fire classification of construction products and building elements — Part 1:

Classification using data from reaction to fire tests

EN 14972-1:2020, Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection

and maintenance
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:

— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
4 General requirements

4.1 Up to a maximum of 5 nozzles used in the fire tests shall be kept for later verification.

4.2 The water mist system, operating without manual intervention, shall successfully complete all

described performance fire tests.

4.3 The fire load shall be taken from the conditioning area and arranged into the test area just before

conducting the test.

4.4 The water flow shall be shut-off 15 min after the activation. After turning off the system, no visible

flame and no smouldering are allowed and the fire damages shall be recorded.
NOTE Small localized flamelets are allowed on a single tray.

4.5 Prior to the testing, a layout of the water mist system to be tested shall be submitted for test

preparation purposes. This layout shall include any components required for the testing as well as the

full dimensioning (e.g. length of pipes, distances of nozzles, etc.).

4.6 System components, component locations, operating conditions and test enclosure details shall

remain unaltered throughout all of the fire tests for a given application.

4.7 All fire tests shall be conducted using the manufacturer instructions in regard to nozzle placement,

spray flux, and operat
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