SIST-TS CEN/TS 14972:2011
(Main)Fixed firefighting systems - Watermist systems - Design and installation
Fixed firefighting systems - Watermist systems - Design and installation
This Technical Specification specifies requirements and gives information on design, installation and testing and gives criteria for the acceptance of fixed landbased watermist systems for specific hazards and provides fire test protocols for a variety of hazard groups.
The requirements are not valid for watermist systems on ships, in aircraft, on vehicles and mobile fire appliances or for below ground systems in the mining industry.
The requirements can be used as a guidance for other fixed firefighting systems, however, provided that any specific requirements for other firefighting supplies are taken into account.
Aspects of watermist associated with explosion protection are beyond the scope of this document.
As the fire test scenarios of this document apply to a group of similar applications, by analogy the successful performance of watermist systems also applies to that group, as defined in Annex A. Extrapolation is not covered.
The document is not intended to be used as a universal design manual of watermist, as different systems have different characteristics and hence follow different design criteria to satisfy their duty requirements.
In the absence of a generalized design method, it is the intent of this document that watermist systems are full-scale fire tested and its system component evaluations are conducted by qualified testing laboratories.
The full system acceptance requires the relevant fire test report, the component test report(s) as well as manufacturer's design, installation, operation and maintenance manual for the application.
If the gas in the system is a significant factor for extinguishment/suppression, the relevant parts of EN 12094 and EN 15004-1 are applicable.
Firefighting systems in accordance with EN 12845 and water spray systems are not covered.
Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Planung und Einbau
Diese Technische Spezifikation legt Anforderungen an die Planung, Errichtung und Prüfung von Feinsprüh-Löschanlagen fest und enthält weitere Informationen dazu sowie Hinweise für Beurteilungskriterien von ortsfesten Fein¬sprüh-Löschanlagen für spezielle Risiken und stellt Brandversuchsprotokolle für verschiedene Gruppen von Risiken zur Verfügung.
Die Anforderungen gelten nicht für Feinsprüh-Löschanlagen auf Schiffen, in Flugzeugen, in Fahrzeugen und mobilen Brandbekämpfungseinrichtungen oder für unterirdische Anlagen im Bergbau.
Die Anforderungen können für andere ortsfeste Brandbekämpfungsanlagen als Leitfaden genutzt werden, allerdings sind die spezifischen Anforderungen für andere Brandbekämpfungszwecke zu berücksichtigen.
Aspekte von Feinsprüh-Löschanlagen, die den Explosionsschutz betreffen, liegen außerhalb des Anwen-dungsbereichs dieses Dokuments.
Da die für dieses Dokument gewählten Szenarien für Brandversuche für eine Gruppe gleichartiger Anwen-dungen gelten, gilt analog die erfolgreich nachgewiesene Leistung von Feinsprüh-Löschanlagen ebenfalls für diese Gruppe, wie in Anhang A definiert ist. Ein Extrapolieren ist nicht vorgesehen.
Eine Anwendung dieses Dokuments als allgemeingültiges Handbuch für die Planung von Feinsprüh-Löschanlagen ist nicht vorgesehen, da unterschiedliche Anlagen unterschiedliche Eigenschaften aufweisen und daher zur Erfüllung der Betriebsanforderungen unterschiedlichen Auslegungskriterien unterliegen.
Weil es kein verallgemeinertes Planungsverfahren gibt, zielt dieses Dokument darauf hin, dass Feinsprüh-Löschanlagen unter realen Brandbedingungen geprüft werden müssen und die Prüfung ihrer Anlagen¬bauteile durch ein qualifiziertes Prüflabor vorgenommen wird.
Zur vollständigen Abnahme der Anlage sind die entsprechenden Brandversuchsprotokolle, der Bauteil-Prüfbericht sowie das Hersteller-Handbuch für Planung, Errichtung, Betrieb und Instandhaltung erforderlich.
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Conception et installation
La présente Spécification Technique définit les exigences et donne des informations relatives à la conception,
à l'installation et aux essais, et donne des critères de réception des systèmes fixes à brouillard d'eau
terrestres relatifs aux risques spécifiques et fournit des protocoles d'essai feu pour une variété de groupes de
risques.
Les exigences ne sont pas valables pour les systèmes à brouillard d'eau sur navire, dans les avions, dans les
véhicules ni aux dispositifs mobiles de lutte contre l'incendie ou pour les systèmes souterrains dans l'industrie
minière.
Les exigences peuvent servir de guide à d'autres systèmes fixes de lutte contre l'incendie, à condition
toutefois que toutes les exigences spécifiques relatives à d'autres dispositifs de lutte contre l'incendie soient
prises en compte.
Les aspects du brouillard d'eau associés à la protection contre l'explosion ne relèvent pas du domaine
d'application du présent document.
Comme les scénarios d'essai feu du présent document s'appliquent à un groupe d'applications similaires, par
analogie les performances retenues des systèmes à brouillard d'eau sont également applicables à ce groupe,
tel que défini dans l'Annexe A. L'extrapolation n'est pas prise en compte.
Le document n'est pas conçu pour être utilisé comme un manuel universel de conception des systèmes à
brouillard d'eau, car des systèmes différents possèdent des caractéristiques différentes et, par conséquent,
impliquent des critères de conception différents pour répondre aux exigences de leur service.
En l'absence d'une méthode de conception généralisée, le présent document vise à soumettre à essai en
vraie grandeur les systèmes à brouillard d'eau et à faire évaluer leurs composants de système par des
laboratoires d'essai qualifiés.
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - Načrtovanje in vgradnja
Ta tehnična specifikacija določa minimalne zahteve in podaja informacije o načrtovanju, vgradnji in preskušanju ter podaja merila za sprejemljivost vgrajenih zemeljskih sistemov s pršečo vodo za nekatere nevarnosti in zagotavlja požarne preskusne protokole za različne skupine nevarnosti. Zahteve ne veljajo za sisteme s pršečo vodo na ladjah, v letalih, v vozilih in mobilnih požarnih napravah ali v podzemnih sistemih v rudarski industriji. Vidiki pršeče vode, povezani z zaščito pred eksplozijo, so zunaj obsega tega dokumenta. Požarni preskusi v tem dokumentu veljajo za uporabe, kot je opisano v dodatku A. Ekstrapolacija ni zajeta. Dokument ni univerzalen priročnik za načrtovanje sistemov s pršečo vodo, ker imajo različni sistemi različne značilnosti in zato sledijo različnim merilom načrtovanja, da zadostijo zahtevam po delovanju. Če ni splošne metode načrtovanja, je namen tega dokumenta, da so sistemi s pršečo vodo popolnoma požarno preskušeni in da ocenjevanje njihovih sistemskih komponent izvedejo kvalificirani preskusni laboratoriji. Sprejemljivost celega sistema potrebuje poročilo ustreznih požarnih preskusov, poročilo(-a) preskusa komponent ter proizvajalčev načrt, vgradnjo in priročnik za uporabo in vzdrževanje. Če je plin v sistemu pomemben dejavnik za ugasnitev/dušenje, veljajo ustrezni deli EN 12094 in EN 15004-1. Gasilni sistemi v skladu z EN 12845 in sistemi za razprševanje vode niso zajeti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TS CEN/TS 14972:2011
01-oktober-2011
1DGRPHãþD
SIST-TS CEN/TS 14972:2008
9JUDMHQLJDVLOQLVLVWHPL6LVWHPLVSUãHþRYRGR1DþUWRYDQMHLQYJUDGQMD
Fixed firefighting systems - Watermist systems - Design and installation
Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Planung und Einbau
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Conception et
installation
Ta slovenski standard je istoveten z: CEN/TS 14972:2011
ICS:
13.220.10 Gašenje požara Fire-fighting
SIST-TS CEN/TS 14972:2011 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TS CEN/TS 14972:2011
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SIST-TS CEN/TS 14972:2011
TECHNICAL SPECIFICATION
CEN/TS 14972
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
June 2011
ICS 13.220.20 Supersedes CEN/TS 14972:2008
English Version
Fixed firefighting systems - Watermist systems - Design and
installation
Installations fixes de lutte contre l'incendie - Systèmes à Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-
brouillard d'eau - Conception et installation Löschanlagen - Planung und Einbau
This Technical Specification (CEN/TS) was approved by CEN on 28 September 2010 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 14972:2011: E
worldwide for CEN national Members.
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SIST-TS CEN/TS 14972:2011
CEN/TS 14972:2011 (E)
Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 Requirements . 11
4.1 General . 11
4.2 Exclusions . 11
4.3 Local applications. 12
4.4 Volume protection . 12
4.5 Other considerations . 13
5 Activation and control . 13
5.1 General . 13
5.2 Electrical activation and control . 14
5.3 Non-electrical activation . 16
6 Design and installation . 16
6.1 General . 16
6.2 Pipes and fittings . 17
6.3 Pipe supports . 17
6.4 Hydraulic and pneumatic circuits . 17
6.5 Non-return valves . 18
6.6 Drainage . 18
6.7 Pressure gauges/monitoring . 18
6.8 Electrical Design . 18
6.10 Nozzle . 19
6.11 Air velocity, openings and ventilation . 19
6.12 Hydraulic and pneumatic calculations . 19
6.13 Automatic shut-down . 20
6.14 Enclosure requirements . 20
7 Components . 20
7.1 Nozzles . 20
7.2 Piping and fittings. 21
7.3 Control valves . 22
7.4 Pressure regulating valves . 22
7.5 Shut-off valves . 22
7.6 Check valves . 22
7.7 Safety valves . 22
7.8 Strainers . 22
7.9 Water supply components . 23
8 Water supply, including additives. 23
8.1 General . 23
8.2 Water quality . 23
8.3 Additives . 24
8.4 Duration . 25
8.5 Continuity . 25
8.6 Maximum and minimum water pressure . 26
8.7 Test devices . 26
2
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CEN/TS 14972:2011 (E)
8.8 Type of water supply . 26
8.9 Pressurization systems . 27
9 Acceptance tests and maintenance . 30
9.1 Acceptance test . 30
9.2 Commissioning report . 31
9.3 Inspection, maintenance and training . 31
10 Documentation . 32
10.1 Documentation for system and type approval . 32
10.2 Documentation for acceptance of design, installation and commissioning . 32
Annex A (normative) Test protocols . 34
A.1 Test protocol for flammable liquids (control and suppression systems) . 34
A.2 Fire test protocol for cable tunnels (control and suppression systems) . 37
A.3 Fire test protocol for office occupancies of Ordinary Hazard Group 1 . 42
A.4 Test protocol for the firefighting performance in commercial kitchen of type deep fat
fryers . 52
Annex B (informative) Guidelines for developing representative fire test procedures for watermist
systems . 58
B.1 General . 58
B.2 Evaluation of the fire hazard . 58
B.3 Evaluation of the compartment conditions . 59
B.4 Determining the performance objective . 60
B.5 Setting up the fire test procedure . 60
B.6 Carrying out the test . 62
B.7 Documentation and interpretation of test results . 62
Annex C (informative) Determination of drop size distribution . 64
C.1 Parameters . 64
C.2 Test data . 64
C.3 Data processing . 65
Annex D (informative) Testing of nozzles . 68
Annex E (informative) Function tests for acceptance and maintenance . 73
E.1 Preliminary function tests . 73
E.2 System function operational test . 73
Annex F (normative) Fire test procedure for certain occupancies Ordinary hazard group OH3 . 75
F.1 Object of the test . 75
F.2 Fuel packages . 76
F.3 Determination of acceptance criteria . 79
F.4 Test procedure . 79
F.5 Evaluation of the test results . 81
Bibliography . 82
3
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CEN/TS 14972:2011 (E)
Foreword
This document (CEN/TS 14972:2011) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 14972:2008.
This Technical Specification (TS) was adopted by CEN for which there is the future possibility of agreement
on a European Standard, but for which at present:
the required support for approval as a European Standard cannot be obtained;
there is doubt on whether consensus has been achieved;
the subject matter is still under technical development.
This Technical Specification is established with a view to serving, for instance, the purpose of:
publishing aspects of a subject which may support the development and progress of the European
market;
giving guidance to the market on or by specifications and related test methods;
providing specifications in experimental circumstances and/or evolving technologies.
The CEN members are requested to submit their comments and experiences with the use of these
requirements and recommendations to the Secretariat of the responsible Technical Committee CEN/TC 191.
CEN/TC 14972:2008 was reviewed and replaced with this new edition.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
4
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CEN/TS 14972:2011 (E)
Introduction
The main purpose of this document is to provide information about the minimum requirements on watermist
systems.
This document describes a series of specific test conditions to set out criteria capable of verifying performance
claims of watermist systems, classify and determine the extent of their suitability for intended applications,
whilst setting a minimum level of acceptable performance and/or safety.
As individual watermist applications have varied requirements and duty, this document is intended to apply to
both skidded stand alone and pumped systems. It is the approving authority's responsibility to assess and
implement the design manual of specific watermist systems against the tests set out in this document.
5
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SIST-TS CEN/TS 14972:2011
CEN/TS 14972:2011 (E)
1 Scope
This Technical Specification specifies minimum requirements and gives information on design, installation and
testing and gives criteria for the acceptance of fixed landbased watermist systems for specific hazards and
provides fire test protocols for a variety of hazard groups.
The requirements are not valid for watermist systems on ships, in aircraft, on vehicles and mobile fire
appliances or for below ground systems in the mining industry.
Aspects of watermist associated with explosion protection are beyond the scope of this document.
The fire tests in this document apply to the applications as described in Annex A. Extrapolation is not covered.
The document is not a universal design manual for watermist systems, as different systems have different
characteristics and hence follow different design criteria to satisfy their duty requirements.
In the absence of a generalized design method, it is the intent of this document that watermist systems are
full-scale fire tested and its system component evaluations are conducted by qualified testing laboratories.
The full system acceptance requires the relevant fire test report, the component test report(s) as well as
manufacturer's design, installation, operation and maintenance manual for the application.
If the gas in the system is a significant factor for extinguishment/suppression, the relevant parts of EN 12094
and EN 15004-1 are applicable.
Firefighting systems in accordance with EN 12845 and water spray systems are not covered.
2 Normative references
The following referenced documents are indispensable for the application 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 54 (all parts), Fire detection and fire alarm systems
EN 12094 (all parts), Fixed firefighting systems ― Components for gas extinguishing systems
EN 12259 (all parts), Fixed firefighting systems ― Components for sprinkler and water spray systems
EN 12845:2004+A2:2009, Fixed firefighting systems ― Automatic sprinkler systems ― Design, installation
and maintenance
EN 13501-1:2007, Fire classification of construction products and building elements ― Part 1: Classification
using test data from reaction to fire tests
EN 15004-1, Fixed firefighting systems ― Gas extinguishing systems ― Part 1: Design, installation and
maintenance (ISO 14520-1:2006, modified)
ISO 5660-1, Reaction-to-fire tests ― Heat release, smoke production and mass loss rate ― Part 1: Heat
release rate (cone calorimeter method)
ISO 6182-11, Fire protection ― Automatic sprinkler systems ― Part 11: Requirements and test methods for
pipe hangers
ISO 6182-12, Fire protection ― Automatic sprinkler systems ― Part 12: Requirements and test methods for
grooved-end components for steel pipe systems
6
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CEN/TS 14972:2011 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
additive
chemical or mixture of chemicals, intentionally introduced into the water mist system
NOTE The additive can have one ore more of the following purposes:
enhancement of, or compliance with, fire protection requirements,
corrosion protection,
frost protection.
3.2
authority having jurisdiction
organization, office, or individual responsible for approving equipment, and installation, or a procedure
3.3
automatic nozzle
watermist nozzle held closed by an integral thermal release element
NOTE see 3.39.
3.4
cooking grease
vegetable shortening incorporating an antifoaming agent
NOTE Only new greases are used for the tests.
3.5
cooking oil
cooking oil available in market with flash point value of 230 °C to 280 °C and auto ignition point between
330 °C and 445 °C
3.6
deep fat fryer
commercially available cooking appliance in which cooking greases in depth are used
NOTE Requirements are specified in EN 60335-2-37:2002.
3.7
design pressure
maximum working pressure expected to be applied to a system component
NOTE 1 The design pressure is an important parameter for the determination of the strength of components.
NOTE 2 The systems are defined by the following values:
for low pressure systems: up to 12,5 bar;
for medium pressure systems: higher than 12,5 bar, but below 35 bar;
for high pressure systems: 35 bar and higher.
3.8
discharge duration
accumulated time during which fire fighting medium is applied
NOTE The time is given in minutes.
7
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CEN/TS 14972:2011 (E)
3.9
discharge time
time interval between the first appearance of extinguishing agent at the nozzle and the time at which the
discharge becomes predominantly gaseous or ceases
NOTE The discharge time is expressed in seconds.
3.10
domestic occupancy
individual dwelling for occupation as a single family unit or constructed or adapted to be used wholly or
principally for human habitation
3.11
dry pipe system
watermist system using automatic nozzles attached to a piping system containing air, nitrogen, or inert gas
under pressure, the release of which (as from an opening of an automatic nozzle) allows the water to flow
NOTE The water flows into the piping system and out through any activated nozzles.
3.12
fire control
limitation of fire growth and prevention of structural damages (by cooling of the objects, adjacent gases and/or
by pre-wetting adjacent combustibles)
NOTE The heat release rate does not grow.
3.13
fire extinguishment
complete elimination of any flaming or smouldering fire
3.14
firefighting medium
substance which causes fire extinguishment, suppression or control
NOTE Media for use in watermist systems: demi water, potable and sweet industrial water, and water with additives
are relevant.
The terminology includes the following:
a) water only, i.e. potable water, natural sea water, deionized water;
b) water with antifreeze;
c) water with fire extinguishing enhancing additive;
d) combination of a),b) and c) with an inert gas or a blend of inert gases used primarily to atomize the water and/or to
reduce oxygen concentration at the fire (see 3.25).
3.15
fire suppression
sharp reduction in the heat release rate and prevention of re-growth of the fire
NOTE The heat release rate decreases.
3.16
flash-over prevention
reducing the average temperature inside the protected volume to a temperature where the smoke layer with
combustion products do not ignite
3.17
inspection
most frequent scheduled maintenance procedure
8
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CEN/TS 14972:2011 (E)
3.18
installation (watermist)
part of a watermist system comprising a control valve set, the associated downstream pipes and nozzles
3.19
local application system
watermist system designed to protect a particular object or hazard in an enclosed, unenclosed or outdoor
condition
3.20
maintenance
combination of all technical and administrative actions, including supervision actions, intended to retain an
item in, or restore it to, a state in which it can perform a required function
[EN 50126-1:1999]
3.21
manufacturer's design and installation manual
document containing design rules for all details of a water mist system based on successful fire tests
3.22
maximum discharge rate
ratio of the quantity of extinguishing agent discharged from a nozzle to the discharge time measured within
± 1 s
NOTE The ratio is expressed in litres per minute for the maximum pressure.
3.23
mean discharge rate
discharge rate calculated dividing the total water amount by the total discharge time
3.24
multiple vat deep fat fryer
multiple fryers which are mechanically joined together
NOTE Each vat incorporates a separately controlled heating source. The at least two fryers are separated by at least
5 cm from each other.
3.25
operating pressure
constant or time-dependent pressure at a component during discharge
3.26
preaction system
dry pipe system, in which an independent fire detection system in the protected area allows the firefighting
medium to flow into the pipework prior to the independent operation and subsequent operation of any
automatic nozzle
3.27
pump
device consisting of one or more pressurizing units directly connected to a suitable driver
3.28
preburn time
time from ignition of the fire source till the operating pressure or design flow is available at the hydraulically
most remote nozzle
9
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CEN/TS 14972:2011 (E)
3.29
qualified company
company registered by a national body or accepted by the authorities having jurisdiction for design, installation
and maintenance of fixed watermist systems and fully trained and authorized by the manufacturer
3.30
responsible person
person(s) responsible for or having effective control over fire safety provisions adopted in or appropriate to the
premises or the building
3.31
single fluid system
system which generates watermist by passage of water or water with additive through the nozzle
3.32
split vat deep fat fryer
fryer that incorporates a dividing partition which splits the fryer in sections
NOTE Each split vat fryer incorporates a separately controlled heating source. The at least two fryers are separated
by at least 5 cm from each other.
3.33
supplier
qualified company that is responsible for the product, process or service and is able to ensure that quality
assurance is exercised
3.34
system duration
total time for which the supply of fire fighting medium is designed to last
NOTE 1 The time is given in minutes.
NOTE 2 For systems with intermittent discharge it is the sum of the times of discharge and the times without discharge.
3.35
twin fluid system
system which generates watermist at the nozzle by mixing water with an atomizing gas fed from a separate
pipe(s) from the water supply
3.36
user
person or persons responsible for use and maintenance of the watermist system
3.37
volume protection system
watermist system designed to protect all hazards in an enclosed volumetric space
3.38
watermist
water spray for which the diameter D measured in a plane 1 m from the nozzle at its minimum operating
v0,90
pressure is less than 1 mm
3.39
watermist nozzle
component with one or more orifices which is designed to produce and discharge watermist
10
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CEN/TS 14972:2011 (E)
3.40
watermist system
entire means of a firefighting system connected to a water supply equipped with one or more nozzles capable
of delivering watermist to meet the requirements of this document
NOTE Watermist systems may discharge plain watermist or a mixture of watermist and some other agent or agents
like gases or additives.
3.41
wet pipe system
watermist system using automatic nozzles attached to a piping system contain
...
SLOVENSKI STANDARD
kSIST-TS FprCEN/TS 14972:2010
01-julij-2010
9JUDMHQLJDVLOQLVLVWHPL6LVWHPLVSUãHþRYRGR1DþUWRYDQMHLQYJUDGQMD
Fixed firefighting systems - Watermist systems - Design and installation
Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Planung und Einbau
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Conception et
installation
Ta slovenski standard je istoveten z: FprCEN/TS 14972
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
kSIST-TS FprCEN/TS 14972:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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kSIST-TS FprCEN/TS 14972:2010
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kSIST-TS FprCEN/TS 14972:2010
TECHNICAL SPECIFICATION
FINAL DRAFT
FprCEN/TS 14972
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
May 2010
ICS 13.220.20 Will supersede CEN/TS 14972:2008
English Version
Fixed firefighting systems - Watermist systems - Design and
installation
Installations fixes de lutte contre l'incendie - Systèmes à Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-
brouillard d'eau - Conception et installation Löschanlagen - Planung und Einbau
This draft Technical Specification is submitted to CEN members for Technical Committee Approval. It has been drawn up by the Technical
Committee CEN/TC 191.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a Technical Specification. It is distributed for review and comments. It is subject to change without notice
and shall not be referred to as a Technical Specification.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TS 14972:2010: E
worldwide for CEN national Members.
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Contents Page
Foreword .5
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms and definitions .8
4 Requirements . 12
4.1 General . 12
4.2 Exclusions . 12
4.2.1 General . 12
4.2.2 Materials which react with water . 13
4.2.3 Liquefied gases . 13
4.3 Local applications. 13
4.4 Volume protection . 13
4.5 Other considerations . 14
4.5.1 Discharge delay . 14
4.5.2 Selection of detection system . 14
4.5.3 Oxygen depletion . 14
5 Activation and control . 14
5.1 General . 14
5.2 Electrical activation and control . 15
5.2.1 General . 15
5.2.2 Application of EN 54 . 15
5.2.3 Power supply . 16
5.2.4 Alarm indications . 16
5.3 Non-electrical activation . 17
6 Design and installation . 17
6.1 General . 17
6.1.1 Design parameters. 17
6.1.2 Extinguishing systems . 18
6.1.3 Control/Suppression systems . 18
6.2 Pipes and fittings . 18
6.3 Pipe supports . 18
6.4 Hydraulic and pneumatic circuits . 19
6.5 Non-return valves . 19
6.6 Drainage . 19
6.7 Pressure gauges/monitoring . 19
6.8 Electrical Design . 19
6.8.1 General . 19
6.8.2 Electrical equipment . 19
6.8.3 Power supplies for operation . 19
6.9 Manual activation . 20
6.10 Nozzle . 20
6.11 Air velocity, openings and ventilation . 20
6.12 Hydraulic and pneumatic calculations . 20
6.12.1 Pressure loss . 20
6.12.2 Water hammer . 20
6.13 Automatic shut-down . 21
6.13.1 Fuel and other combustibles used in the protected area . 21
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6.13.2 Power supply to equipment in the protected area . 21
6.14 Enclosure requirements . 21
7 Components . 21
7.1 Nozzles . 21
7.1.1 General . 21
7.1.2 Open nozzles . 21
7.1.3 Automatic nozzles . 21
7.2 Piping and fittings . 22
7.2.1 General . 22
7.2.2 Piping . 22
7.2.3 Pipe supports . 22
7.2.4 Flexible hoses . 22
7.3 Control valves . 23
7.4 Pressure regulating valves . 23
7.5 Shut-off valves . 23
7.6 Check valves . 23
7.7 Safety valves . 23
7.8 Strainers . 23
7.9 Water supply components. 24
8 Water supply, including additives . 24
8.1 General . 24
8.2 Water quality . 24
8.3 Additives. 25
8.3.1 General . 25
8.3.2 Identification . 25
8.3.3 Safety requirements . 25
8.3.4 Listing in the manufacturer's design and installation manual . 25
8.4 Duration . 26
8.4.1 General . 26
8.4.2 Self-contained systems . 26
8.5 Continuity . 26
8.5.1 General . 26
8.5.2 Frost protection . 26
8.5.3 Housing of equipment for water supplies . 26
8.6 Maximum and minimum water pressure . 27
8.7 Test devices . 27
8.7.1 Self-contained systems . 27
8.7.2 Pump and town main supplied systems . 27
8.8 Type of water supply . 27
8.9 Pressurization systems . 28
8.9.1 Cylinders and storage tanks . 28
8.9.2 Pump systems . 29
9 Acceptance tests and maintenance . 31
9.1 Acceptance test . 31
9.1.1 Criteria for acceptance . 31
9.1.2 Acceptance of watermist systems . 31
9.2 Commissioning report . 32
9.3 Inspection, maintenance and training . 32
9.3.1 Inspection . 32
9.3.2 Maintenance . 32
9.3.3 Training. 32
10 Documentation . 33
10.1 Documentation for system and type approval . 33
10.2 Documentation for acceptance of design, installation and commissioning . 33
10.3 Documentation of system calculations . 34
10.4 Maintenance . 34
Annex A (normative) Test protocols . 35
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A.1 Test protocol for flammable liquids (control and suppression systems). 35
A.2 Fire test protocol for cable tunnels (control and suppression systems) . 38
A.3 Fire test protocol for office occupancies of Ordinary Hazard Group 1 . 43
A.4 Test protocol for the firefighting performance in commercial kitchen of type deep fat
fryers . 53
Annex B (informative) Guidelines for developing representative fire test procedures for watermist
systems . 60
B.1 General . 60
B.2 Evaluation of the fire hazard . 60
B.3 Evaluation of the compartment conditions . 61
B.4 Determining the performance objective . 62
B.5 Setting up the fire test procedure . 62
B.6 Carrying out the test . 64
B.7 Documentation and interpretation of test results . 64
Annex C (informative) Determination of drop size distribution . 66
C.1 Parameters . 66
C.2 Test data . 66
C.3 Data processing . 67
Annex D (informative) Testing of nozzles . 70
Annex E (informative) Function tests for acceptance and maintenance . 75
E.1 Preliminary function tests . 75
E.2 System function operational test . 75
Annex F (normative) Fire test procedure for certain occupancies Ordinary hazard group OH3. 77
F.1 Object of the test. 77
F.2 Fuel packages . 78
F.3 Determination of acceptance criteria . 81
F.4 Test procedure . 81
F.5 Evaluation of the test results . 83
Bibliography . 84
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Foreword
This document (FprCEN/TS 14972:2010) 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 Technical Committee Approval by correspondence.
This document will supersede CEN/TS 14972:2008.
This Technical Specification (TS) was adopted by CEN for which there is the future possibility of agreement
on a European Standard, but for which at present:
the required support for approval as a European Standard cannot be obtained;
there is doubt on whether consensus has been achieved;
the subject matter is still under technical development.
This Technical Specification is established with a view to serving, for instance, the purpose of:
publishing aspects of a subject which may support the development and progress of the European
market;
giving guidance to the market on or by specifications and related test methods;
providing specifications in experimental circumstances and/or evolving technologies.
The CEN members are requested to submit their comments and experiences with the use of these
requirements and recommendations to the Secretariat of the responsible Technical Committee CEN/TC 191.
This document amends Clause 3, Annex A of CEN/TS 14972:2008 with A.4 (Test protocol for deep fat fryers),
Annex F (Fire test procedure for occupancies Ordinary hazard group OH3) and the Bibliography.
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Introduction
The main purpose of this document is to provide information about the minimum requirements on watermist
systems.
The document devises a series of specific test conditions to set out criteria capable of verifying performance
claims of watermist systems, classify and determine the extent of their suitability for intended applications,
whilst setting a minimum level of acceptable performance and/or safety.
As individual watermist applications have varied requirements and duty, this document is intended to apply to
both skidded stand alone and pumped systems. It is the approving authority's responsibility to assess and
implement the design manual of specific watermist systems against the tests set out in this document.
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1 Scope
This Technical Specification specifies requirements and gives information on design, installation and testing
and gives criteria for the acceptance of fixed landbased watermist systems for specific hazards and provides
fire test protocols for a variety of hazard groups.
The requirements are not valid for watermist systems on ships, in aircraft, on vehicles and mobile fire
appliances or for below ground systems in the mining industry.
The requirements can be used as a guidance for other fixed firefighting systems, however, provided that any
specific requirements for other firefighting supplies are taken into account.
Aspects of watermist associated with explosion protection are beyond the scope of this document.
As the fire test scenarios of this document apply to a group of similar applications, by analogy the successful
performance of watermist systems also applies to that group, as defined in Annex A. Extrapolation is not
covered.
The document is not intended to be used as a universal design manual of watermist, as different systems
have different characteristics and hence follow different design criteria to satisfy their duty requirements.
In the absence of a generalized design method, it is the intent of this document that watermist systems are
full-scale fire tested and its system component evaluations are conducted by qualified testing laboratories.
The full system acceptance requires the relevant fire test report, the component test report(s) as well as
manufacturer's design, installation, operation and maintenance manual for the application.
If the gas in the system is a significant factor for extinguishment/suppression, the relevant parts of EN 12094
and EN 15004-1 are applicable.
Firefighting systems in accordance with EN 12845 and water spray systems are not covered.
2 Normative references
The following referenced documents are indispensable for the application 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 54 (all parts), Fire detection and fire alarm systems
EN 12094 (all parts), Fixed firefighting systems ― Components for gas extinguishing systems
EN 12259 (all parts), Fixed firefighting systems ― Components for sprinkler and water spray systems
EN 12845:2004+A2:2009, Fixed firefighting systems ― Automatic sprinkler systems ― Design, installation
and maintenance
EN 13501-1:2007, Fire classification of construction products and building elements ― Part 1: Classification
using test data from reaction to fire tests
EN 15004-1, Fixed firefighting systems ― Gas extinguishing systems ― Part 1: Design, installation and
maintenance (ISO 14520-1:2006, modified)
ISO 5660-1, Reaction-to-fire tests ― Heat release, smoke production and mass loss rate ― Part 1: Heat
release rate (cone calorimeter method)
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ISO 6182-11, Fire protection ― Automatic sprinkler systems ― Part 11: Requirements and test methods for
pipe hangers
ISO 6182-12, Fire protection ― Automatic sprinkler systems ― Part 12: Requirements and test methods for
grooved-end components for steel pipe systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
additive
chemical or mixture of chemicals intentionally introduced into the system
3.2
authority having jurisdiction
organization, office, or individual responsible for approving equipment, and installation, or a procedure
3.3
automatic nozzle
nozzle with an integrated release element
3.4
competent person
person with the necessary training and experience, with access to the relevant tools, equipment and
information, manuals and knowledge of any special procedures recommended by the manufacturer and/or
holder of the approval of the watermist system, to be capable of carrying out the relevant maintenance
procedures of this standard
3.5
cooking grease
vegetable shortening incorporating an antifoaming agent
NOTE Only new greases are used for the tests.
3.6
cooking oil
cooking oil available in market with flash point value of 230 °C to 280 °C and auto ignition point between
330 °C and 445 °C
3.7
deep fat fryer
commercially available cooking appliance in
...
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